46 changed files with 354 additions and 1963 deletions
--- a/.gitignore
+++ b/.gitignore
@ -52,5 +52,3 @@ a_little_config_pro.txt
 dev_plan.txt


-
-
--- a/2
+++ b/2
@ -192,3 +192,5 @@ third-party archives.



+
+
--- a/README.md
+++ b/README.md
@ -1,6 +1,6 @@
 ### Enjoy

-Enjoy 是基于 Java 语言的极轻量极魔板引擎。极轻量级仅 227 KB 并且不依赖任何第三方。极简设计仅 if、for、switch、set、define、include、render 七个核心指令，让学习成本低到极致。独创 DKFF(Dynamic Key Feature Forward) 词法分析算法与 DLRD (Double Layer Recursive Descent)语法分析算法，避免使用 javacc、antlr、jflex 生成器，令代码量少到极致。
+Enjoy 是基于 Java 语言的极轻量极魔板引擎。极轻量级仅 171K 并且不依赖任何第三方。极简设计仅 if、for、switch、set、define、include、render 七个核心指令，让学习成本低到极致。独创 DKFF(Dynamic Key Feature Forward) 词法分析算法与 DLRD (Double Layer Recursive Descent)语法分析算法，避免使用 javacc、antlr、jflex 生成器，令代码量少到极致。

 #### Maven 坐标

@ -8,7 +8,7 @@ Enjoy 是基于 Java 语言的极轻量极魔板引擎。极轻量级仅 227 KB
 <dependency>
    <groupId>com.jfinal</groupId>
    <artifactId>enjoy</artifactId>
-    <version>4.8</version>
+    <version>4.2</version>
 </dependency>
 ```

@ -25,49 +25,7 @@ Enjoy 是基于 Java 语言的极轻量极魔板引擎。极轻量级仅 227 KB

 #### 简单示例：

-**1. 与 Spring boot 整合**
-```java
-@Configuration
-public class SpringBootConfig {
-
-    @Bean(name = "jfinalViewResolver")
-    public JFinalViewResolver getJFinalViewResolver() {
-
-        // 创建用于整合 spring boot 的 ViewResolver 扩展对象
-        JFinalViewResolver jfr = new JFinalViewResolver();
-
-        // 对 spring boot 进行配置
-        jfr.setSuffix(".html");
-        jfr.setContentType("text/html;charset=UTF-8");
-        jfr.setOrder(0);
-
-        // 获取 engine 对象，对 enjoy 模板引擎进行配置，配置方式与前面章节完全一样
-        Engine engine  = JFinalViewResolver.engine;
-
-        // 热加载配置能对后续配置产生影响，需要放在最前面
-        engine.setDevMode(true);
-
-        // 使用 ClassPathSourceFactory 从 class path 与 jar 包中加载模板文件
-        engine.setToClassPathSourceFactory();
-
-        // 在使用 ClassPathSourceFactory 时要使用 setBaseTemplatePath
-        // 代替 jfr.setPrefix("/view/")
-        engine.setBaseTemplatePath("/view/");
-
-        // 添加模板函数
-        engine.addSharedFunction("/common/_layout.html");
-        engine.addSharedFunction("/common/_paginate.html");
-
-        // 更多配置与前面章节完全一样
-        // engine.addDirective(...)
-        // engine.addSharedMethod(...);
-
-        return jfr;
-    }
-}
-```
-
-**2. 与 Spring  MVC 整合**
+**1. 在 spring 中的配置**

 ```java
 <bean id="viewResolver" class="com.jfinal.template.ext.spring.JFinalViewResolver">
@ -85,7 +43,7 @@ public class SpringBootConfig {
 </bean>
 ```

-**3.详细使用方法见官方文档**
+**2.详细使用方法见 jfinal 手册**

 read me 正在补充，详细使用文档见官网：[https://www.jfinal.com/doc/6-1](https://www.jfinal.com/doc/6-1)

--- a/pom.xml
+++ b/pom.xml
@ -1,16 +1,12 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
 	<modelVersion>4.0.0</modelVersion>
-	
 	<groupId>com.jfinal</groupId>
 	<artifactId>enjoy</artifactId>
-	<version>4.8.dev</version>
 	<packaging>jar</packaging>
-	
-	
 	<name>enjoy</name>
-	<description>Enjoy is a simple, light, rapid, independent, extensible Java Template Engine.</description>
+	<version>4.2</version>
 	<url>http://www.jfinal.com</url>
+	<description>Enjoy is a simple, light, rapid, independent, extensible Java Template Engine.</description>
 	
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
@ -21,15 +17,13 @@
 		<system>Git Issue</system>
 		<url>https://gitee.com/jfinal/enjoy/issues</url>
 	</issueManagement>
-	
 	<licenses>
 		<license>
 			<name>The Apache Software License, Version 2.0</name>
 			<url>http://apache.org/licenses/LICENSE-2.0.txt</url>
 		</license>
 	</licenses>
-	
-	<!--<developers>
+	<developers>
 		<developer>
 			<id>jfinal</id>
 			<name>James</name>
@ -37,29 +31,25 @@
 			<url>http://jfinal.com/user/1</url>
 		</developer>
 	</developers>
-	
 	<scm>
 		<connection>scm:git:git@gitee.com:jfinal/enjoy.git</connection>
 		<developerConnection>scm:git:git@gitee.com:jfinal/enjoy.git</developerConnection>
 		<url>git@gitee.com:jfinal/enjoy.git</url>
-	</scm>-->
-
-	<distributionManagement>
-		<repository>
-			<id>mvn-release</id>
-			<name>mvn-release</name>
-			<url>https://nexus.1216.top/repository/maven-releases/</url>
-		</repository>
-	</distributionManagement>
+	</scm>
+	
+	<parent>
+		<groupId>org.sonatype.oss</groupId>
+		<artifactId>oss-parent</artifactId>
+		<version>7</version>
+	</parent>

 	<repositories>
 	</repositories>
-	
 	<dependencies>
 		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>
-			<version>4.13.1</version>
+			<version>4.8.2</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>
@ -77,7 +67,6 @@
 	</dependencies>
 	
 	<build>
-      	<defaultGoal>compile</defaultGoal>
 		<plugins>
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
@ -86,27 +75,20 @@
 				<configuration>
 					<source>1.8</source>
 					<target>1.8</target>
-					<encoding>UTF-8</encoding>
 				</configuration>
 			</plugin>
 			
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-javadoc-plugin</artifactId>
-				<version>2.10.4</version>
+				<version>2.10.3</version>
 				<configuration>
 					<!-- 解决 java8  发布到 maven 异常 -->
 					<additionalparam>-Xdoclint:none</additionalparam>
 					<encoding>UTF-8</encoding>
+					<outputDirectory>${basedir}</outputDirectory>
+					<reportOutputDirectory>${basedir}</reportOutputDirectory>
 				</configuration>
-				<executions>
-					<execution>
-						<id>attach-javadocs</id>
-						<goals>
-							<goal>jar</goal>
-						</goals>
-					</execution>
-				</executions>
 			</plugin>

 			<!-- 安装源码到本地仓库 -->
@ -125,23 +107,24 @@
 				</executions>
 			</plugin>

-			<!--<plugin>
+			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-gpg-plugin</artifactId>
-				<version>1.6</version>
+				<version>1.1</version>
 				<executions>
-					<execution>
-						<id>sign-artifacts</id>
-						<phase>verify</phase>
-						<goals>
-							<goal>sign</goal>
-						</goals>
-					</execution>
+				  <execution>
+					<id>sign-artifacts</id>
+					<phase>verify</phase>
+					<goals>
+					  <goal>sign</goal>
+					</goals>
+				  </execution>
 				</executions>
-			</plugin>-->
+				<configuration>
+					<skip>false</skip>
+				</configuration>
+			</plugin>

 		</plugins>
 	</build>
 </project>
-
-
--- a/src/main/java/com/jfinal/kit/StrKit.java
+++ b/src/main/java/com/jfinal/kit/StrKit.java
@ -102,10 +102,6 @@ public class StrKit {
 		return true;
 	}
 	
-	public static String defaultIfBlank(String str, String defaultValue) {
-		return isBlank(str) ? defaultValue : str;
-	}
-	
 	public static String toCamelCase(String stringWithUnderline) {
 		if (stringWithUnderline.indexOf('_') == -1) {
 			return stringWithUnderline;
@ -149,17 +145,6 @@ public class StrKit {
 		return sb.toString();
 	}
 	
-	public static String join(java.util.List<String> list, String separator) {
-		StringBuilder sb = new StringBuilder();
-		for (int i=0, len=list.size(); i<len; i++) {
-			if (i > 0) {
-				sb.append(separator);
-			}
-			sb.append(list.get(i));
-		}
-		return sb.toString();
-	}
-	
 	public static boolean slowEquals(String a, String b) {
 		byte[] aBytes = (a != null ? a.getBytes() : null);
 		byte[] bBytes = (b != null ? b.getBytes() : null);
--- a/src/main/java/com/jfinal/kit/TplKit.java
+++ b/src/main/java/com/jfinal/kit/TplKit.java
@ -1,215 +0,0 @@
-/**
- * Copyright (c) 2011-2019, James Zhan 詹波 (jfinal@126.com).
- * <p>
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- * <p>
- * http://www.apache.org/licenses/LICENSE-2.0
- * <p>
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.jfinal.kit;
-
-
-import com.jfinal.kit.tpl.NameSpaceDirective;
-import com.jfinal.kit.tpl.ParaDirective;
-import com.jfinal.kit.tpl.TplDirective;
-import com.jfinal.kit.tpl.TplSource;
-import com.jfinal.template.Engine;
-import com.jfinal.template.Template;
-import com.jfinal.template.source.FileSource;
-import com.jfinal.template.source.ISource;
-import com.jfinal.template.stat.Location;
-import com.jfinal.template.stat.ParseException;
-
-import java.io.File;
-import java.io.FileFilter;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.logging.Logger;
-
-/**
- * SqlKit
- */
-@SuppressWarnings({"unchecked", "rawtypes"})
-public class TplKit {
-    public static String baseSqlTemplatePath;
-    public static final String SQL_TEMPLATE_MAP_KEY = "_SQL_TEMPLATE_MAP_";
-    public static final String SQL_PARA_KEY = "_SQL_PARA_";
-    public static final String PARA_ARRAY_KEY = "_PARA_ARRAY_"; // 此参数保持不动，已被用于模板取值 _PARA_ARRAY_[n]
-
-    private String configName;
-    private boolean devMode;
-    private Engine engine;
-    private List<TplSource> tplSourceList = new ArrayList<TplSource>();
-    private Map<String, Template> sqlTemplateMap;
-
-    private static Map<String, TplKit> kitMap = new HashMap<>();
-
-    public static TplKit use(String configName) {
-        return use(configName, false);
-    }
-
-    public static synchronized TplKit use(String configName, boolean devMode) {
-        TplKit tplKit = kitMap.get(configName);
-        if (tplKit == null) {
-            tplKit = new TplKit(configName, devMode);
-            kitMap.put(configName, tplKit);
-        }
-        return tplKit;
-    }
-
-    private TplKit(String configName, boolean devMode) {
-        this.configName = configName;
-        this.devMode = devMode;
-
-        engine = new Engine(configName);
-        engine.setDevMode(devMode);
-        engine.setToClassPathSourceFactory();
-
-        engine.addDirective("namespace", NameSpaceDirective.class);
-        engine.addDirective("tpl", TplDirective.class);
-
-        engine.addDirective("para", ParaDirective.class, true);
-        engine.addDirective("p", ParaDirective.class, true);        // 配置 #para 指令的别名指令 #p，不建议使用，在此仅为兼容 3.0 版本
-    }
-
-    private TplKit(String configName) {
-        this(configName, false);
-    }
-
-    public Engine getEngine() {
-        return engine;
-    }
-
-    public void setDevMode(boolean devMode) {
-        this.devMode = devMode;
-        engine.setDevMode(devMode);
-    }
-
-    public void setBaseTplTemplatePath(String baseSqlTemplatePath) {
-        this.baseSqlTemplatePath = baseSqlTemplatePath;
-    }
-
-    public void addTplTemplate(String sqlTemplate) {
-        if (StrKit.isBlank(sqlTemplate)) {
-            throw new IllegalArgumentException("tplTemplate can not be blank");
-        }
-        if (baseSqlTemplatePath != null) {
-            addTplTemplate(new FileSource(baseSqlTemplatePath, "tpl.sql"));
-        } else {
-            tplSourceList.add(new TplSource(sqlTemplate));
-        }
-    }
-
-    public void addTplTemplate(ISource sqlTemplate) {
-        if (sqlTemplate == null) {
-            throw new IllegalArgumentException("sqlTemplate can not be null");
-        }
-        tplSourceList.add(new TplSource(sqlTemplate));
-    }
-
-    public void addTplTemplate(File file) {
-        addTplTemplate(file, null);
-    }
-
-    public void addTplTemplate(File file, FileFilter filter) {
-        if (file.isFile()) {
-            if (filter != null && !filter.accept(file)) {
-                return;
-            }
-            addTplTemplate(new FileSource(file.getParent(), file.getName()));
-        } else if (file.isDirectory()) {
-            File[] files = file.listFiles();
-            for (File file1 : files) {
-                addTplTemplate(file1, filter);
-            }
-        }
-    }
-
-    public synchronized void parseTplTemplate() {
-        Map<String, Template> sqlTemplateMap = new HashMap<String, Template>(512, 0.5F);
-        for (TplSource ss : tplSourceList) {
-            String fileName = ss.isFile() ? ss.file : ((FileSource) ss.source).getFinalFileName();
-            try {
-                Template template = ss.isFile() ? engine.getTemplate(ss.file) : engine.getTemplate(ss.source);
-                Map<Object, Object> data = new HashMap<>();
-                data.put(SQL_TEMPLATE_MAP_KEY, sqlTemplateMap);
-                template.renderToString(data);
-            } catch (Exception e) {
-                throw new RuntimeException(String.format("%s parse error", fileName), e);
-            }
-        }
-        this.sqlTemplateMap = sqlTemplateMap;
-    }
-
-    private void reloadModifiedTplTemplate() {
-        engine.removeAllTemplateCache();    // 去除 Engine 中的缓存，以免 get 出来后重新判断 isModified
-        parseTplTemplate();
-    }
-
-    private boolean isTplTemplateModified() {
-        for (Template template : sqlTemplateMap.values()) {
-            if (template.isModified()) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    private Template getTplTemplate(String key) {
-        Template template = sqlTemplateMap.get(key);
-        if (template == null) {    // 此 if 分支，处理起初没有定义，但后续不断追加 sql 的情况
-            if (!devMode) {
-                return null;
-            }
-            if (isTplTemplateModified()) {
-                synchronized (this) {
-                    if (isTplTemplateModified()) {
-                        reloadModifiedTplTemplate();
-                        template = sqlTemplateMap.get(key);
-                    }
-                }
-            }
-            return template;
-        }
-
-        if (devMode && template.isModified()) {
-            synchronized (this) {
-                template = sqlTemplateMap.get(key);
-                if (template.isModified()) {
-                    reloadModifiedTplTemplate();
-                    template = sqlTemplateMap.get(key);
-                }
-            }
-        }
-        return template;
-    }
-
-    public String getTpl(String key) {
-        Template template = getTplTemplate(key);
-        return template != null ? template.renderToString(null).replaceAll("[\\s]+", " ") : null;
-    }
-
-    public String getTpl(String key, Map para) {
-        Template template = getTplTemplate(key);
-        return template != null ? template.renderToString(para).replaceAll("[\\s]+", " ") : null;
-    }
-
-    public String toString() {
-        return "SqlKit for config : " + configName;
-    }
-
-}
-
-
-
-
--- a/src/main/java/com/jfinal/kit/tpl/NameSpaceDirective.java
+++ b/src/main/java/com/jfinal/kit/tpl/NameSpaceDirective.java
@ -1,74 +0,0 @@
-/**
- * Copyright (c) 2011-2019, James Zhan 詹波 (jfinal@126.com).
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.jfinal.kit.tpl;
-
-import com.jfinal.template.Directive;
-import com.jfinal.template.Env;
-import com.jfinal.template.TemplateException;
-import com.jfinal.template.expr.ast.Const;
-import com.jfinal.template.expr.ast.Expr;
-import com.jfinal.template.expr.ast.ExprList;
-import com.jfinal.template.io.Writer;
-import com.jfinal.template.stat.ParseException;
-import com.jfinal.template.stat.Scope;
-
-/**
- * NameSpaceDirective
- */
-public class NameSpaceDirective extends Directive {
-	
-	static final String NAME_SPACE_KEY = "_NAME_SPACE_";
-	
-	private String nameSpace;
-	
-	public void setExprList(ExprList exprList) {
-		if (exprList.length() == 0) {
-			throw new ParseException("The parameter of #namespace directive can not be blank", location);
-		}
-		if (exprList.length() > 1) {
-			throw new ParseException("Only one parameter allowed for #namespace directive", location);
-		}
-		Expr expr = exprList.getExpr(0);
-		if (expr instanceof Const && ((Const)expr).isStr()) {
-		} else {
-			throw new ParseException("The parameter of #namespace directive must be String", location);
-		}
-		
-		this.nameSpace = ((Const)expr).getStr();
-	}
-	
-	public void exec(Env env, Scope scope, Writer writer) {
-		if (scope.get(NAME_SPACE_KEY) != null) {
-			throw new TemplateException("#namespace directive can not be nested", location);
-		}
-		scope.set(NAME_SPACE_KEY, nameSpace);
-		try {
-			stat.exec(env, scope, writer);
-		} finally {
-			scope.remove(NAME_SPACE_KEY);
-		}
-	}
-	
-	public boolean hasEnd() {
-		return true;
-	}
-}
-
-
-
-
-
--- a/src/main/java/com/jfinal/kit/tpl/ParaDirective.java
+++ b/src/main/java/com/jfinal/kit/tpl/ParaDirective.java
@ -1,127 +0,0 @@
-/**
- * Copyright (c) 2011-2019, James Zhan 詹波 (jfinal@126.com).
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.jfinal.kit.tpl;
-
-import com.jfinal.kit.TplKit;
-import com.jfinal.template.Directive;
-import com.jfinal.template.Env;
-import com.jfinal.template.TemplateException;
-import com.jfinal.template.expr.ast.Const;
-import com.jfinal.template.expr.ast.Expr;
-import com.jfinal.template.expr.ast.ExprList;
-import com.jfinal.template.expr.ast.Id;
-import com.jfinal.template.io.Writer;
-import com.jfinal.template.stat.ParseException;
-import com.jfinal.template.stat.Scope;
-
-/**
- * #para 指令用于在 sql 模板中根据参数名生成问号占位以及查询参数
- * 
- * <pre>
- * 一、参数为表达式的用法
- * 1：模板内容
- *   #sql("find")
- *     select * from user where nickName = #para(nickName) and age > #para(age)
- *   #end
- *   
- * 2： java 代码
- *   SqlPara sp = getSqlPara("find", Kv.by("nickName", "prettyGirl").set("age", 18));
- *   user.find(sp)
- *   或者：
- *   user.find(sp.getSql(), sp.getPara());
- * 
- * 3：以上用法会在 #para(expr) 处生成问号占位字符，并且实际的参数放入 SqlPara 对象的参数列表中
- *   后续可以通过 sqlPara.getPara() 获取到参数并直接用于查询
- * 
- * 
- * 二、参数为 int 型数字的用法
- * 1：模板内容
- *   #sql("find")
- *     select * from user where id > #para(0) and id < #para(1)
- *   #end
- *   
- * 2： java 代码
- *   SqlPara sp = getSqlPara("find", 10, 100);
- *   user.find(sp)
- * 
- * 3：以上用法会在 #para(0) 与 #para(1) 处生成问号占位字符，并且将 10、100 这两个参数放入
- *    SqlPara 对象的参数列表中，后续可以通过 sqlPara.getPara() 获取到参数并直接用于查询
- * </pre>
- */
-public class ParaDirective extends Directive {
-	
-	private int index = -1;
-	private String paraName = null;
-	private static boolean checkParaAssigned = true;
-	
-	public static void setCheckParaAssigned(boolean checkParaAssigned) {
-		ParaDirective.checkParaAssigned = checkParaAssigned;
-	}
-	
-	public void setExprList(ExprList exprList) {
-		if (exprList.length() == 0) {
-			throw new ParseException("The parameter of #para directive can not be blank", location);
-		}
-		
-		if (exprList.length() == 1) {
-			Expr expr = exprList.getExpr(0);
-			if (expr instanceof Const && ((Const)expr).isInt()) {
-				index = ((Const)expr).getInt();
-				if (index < 0) {
-					throw new ParseException("The index of para array must greater than -1", location);
-				}
-			}
-		}
-		
-		if (checkParaAssigned && exprList.getLastExpr() instanceof Id) {
-			Id id = (Id)exprList.getLastExpr();
-			paraName = id.getId();
-		}
-		
-		this.exprList = exprList;
-	}
-	
-	public void exec(Env env, Scope scope, Writer writer) {
-		TplPara tplPara = (TplPara)scope.get(TplKit.SQL_PARA_KEY);
-		if (tplPara == null) {
-			throw new TemplateException("#para directive invoked by getSqlPara(...) method only", location);
-		}
-		
-		write(writer, "?");
-		if (index == -1) {
-			// #para(paraName) 中的 paraName 没有赋值时抛出异常
-			// issue: http://www.jfinal.com/feedback/1832
-			if (checkParaAssigned && paraName != null && !scope.exists(paraName)) {
-				throw new TemplateException("The parameter \""+ paraName +"\" must be assigned", location);
-			}
-			
-			tplPara.addPara(exprList.eval(scope));
-		} else {
-			Object[] paras = (Object[])scope.get(TplKit.PARA_ARRAY_KEY);
-			if (paras == null) {
-				throw new TemplateException("The #para(" + index + ") directive must invoked by getSqlPara(String, Object...) method", location);
-			}
-			if (index >= paras.length) {
-				throw new TemplateException("The index of #para directive is out of bounds: " + index, location);
-			}
-			tplPara.addPara(paras[index]);
-		}
-	}
-}
-
-
-
--- a/src/main/java/com/jfinal/kit/tpl/TplDirective.java
+++ b/src/main/java/com/jfinal/kit/tpl/TplDirective.java
@ -1,74 +0,0 @@
-/**
- * Copyright (c) 2011-2019, James Zhan 詹波 (jfinal@126.com).
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.jfinal.kit.tpl;
-
-import com.jfinal.kit.StrKit;
-import com.jfinal.kit.TplKit;
-import com.jfinal.template.Directive;
-import com.jfinal.template.Env;
-import com.jfinal.template.Template;
-import com.jfinal.template.expr.ast.Const;
-import com.jfinal.template.expr.ast.Expr;
-import com.jfinal.template.expr.ast.ExprList;
-import com.jfinal.template.io.Writer;
-import com.jfinal.template.stat.ParseException;
-import com.jfinal.template.stat.Scope;
-
-import java.util.Map;
-
-/**
- * SqlDirective
- */
-public class TplDirective extends Directive {
-	
-	private String id;
-	
-	public void setExprList(ExprList exprList) {
-		if (exprList.length() == 0) {
-			throw new ParseException("The parameter of #sql directive can not be blank", location);
-		}
-		if (exprList.length() > 1) {
-			throw new ParseException("Only one parameter allowed for #sql directive", location);
-		}
-		Expr expr = exprList.getExpr(0);
-		if (expr instanceof Const && ((Const)expr).isStr()) {
-		} else {
-			throw new ParseException("The parameter of #sql directive must be String", location);
-		}
-		
-		this.id = ((Const)expr).getStr();
-	}
-	
-	@SuppressWarnings("unchecked")
-	public void exec(Env env, Scope scope, Writer writer) {
-		String nameSpace = (String)scope.get(NameSpaceDirective.NAME_SPACE_KEY);
-		String key = StrKit.isBlank(nameSpace) ? id : nameSpace + "." + id;
-		Map<String, Template> sqlTemplateMap = (Map<String, Template>)scope.get(TplKit.SQL_TEMPLATE_MAP_KEY);
-		if (sqlTemplateMap.containsKey(key)) {
-			throw new ParseException("Sql already exists with key : " + key, location);
-		}
-		
-		sqlTemplateMap.put(key, new Template(env, stat));
-	}
-	
-	public boolean hasEnd() {
-		return true;
-	}
-}
-
-
-
--- a/src/main/java/com/jfinal/kit/tpl/TplPara.java
+++ b/src/main/java/com/jfinal/kit/tpl/TplPara.java
@ -1,71 +0,0 @@
-/**
- * Copyright (c) 2011-2019, James Zhan 詹波 (jfinal@126.com).
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.jfinal.kit.tpl;
-
-import java.io.Serializable;
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * SqlPara
- * 封装查询使用的 sql 与参数，主要用于 getSqlPara(...) 返回值
- */
-public class TplPara implements Serializable {
-	
-	private static final long serialVersionUID = -8586448059592782381L;
-	
-	String sql;
-	List<Object> paraList;
-	
-	public TplPara setSql(String sql) {
-		this.sql = sql;
-		return this;
-	}
-	
-	public TplPara addPara(Object para) {
-		if (paraList == null) {
-			paraList = new ArrayList<Object>();
-		}
-		paraList.add(para);
-		return this;
-	}
-	
-	public String getSql() {
-		return sql;
-	}
-	
-	public Object[] getPara() {
-		/*if (paraList == null || paraList.size() == 0) {
-			return DbKit.NULL_PARA_ARRAY;
-		} else {
-			return paraList.toArray(new Object[paraList.size()]);
-		}*/
-		return null;
-	}
-	
-	public TplPara clear() {
-		sql = null;
-		if (paraList != null) {
-			paraList.clear();
-		}
-		return this;
-	}
-	
-	public String toString() {
-		return "Sql: " + sql + "\nPara: " + paraList;
-	}
-}
--- a/src/main/java/com/jfinal/kit/tpl/TplSource.java
+++ b/src/main/java/com/jfinal/kit/tpl/TplSource.java
@ -1,29 +0,0 @@
-package com.jfinal.kit.tpl;
-
-import com.jfinal.template.source.ISource;
-
-/**
- * 封装 sql 模板源
- */
-public class TplSource {
-	
-	public String file;
-	public ISource source;
-	
-	public TplSource(String file) {
-		this.file = file;
-		this.source = null;
-	}
-
-	public TplSource(ISource source) {
-		this.file = null;
-		this.source = source;
-	}
-
-	public boolean isFile() {
-		return file != null;
-	}
-}
-
-
-
--- a/src/main/java/com/jfinal/proxy/ProxyClass.java
+++ b/src/main/java/com/jfinal/proxy/ProxyClass.java
@ -1,100 +0,0 @@
-/**
- * Copyright (c) 2011-2019, James Zhan 詹波 (jfinal@126.com).
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.jfinal.proxy;
-
-import java.util.Map;
-
-/**
- * ProxyClass
- */
-public class ProxyClass {
-	
-	// 被代理的目标
-	private Class<?> target;
-	
-	/**
-	 * 以下是代理类信息
-	 */
-	private String pkg;						// 包名
-	private String name;						// 类名
-	private String sourceCode;				// 源代码
-	private Map<String, byte[]> byteCode;	// 字节码
-	private Class<?> clazz;					// 字节码被 loadClass 后的 Class
-	// private List<ProxyMethod> proxyMethodList = new ArrayList<>();
-	
-	public ProxyClass(Class<?> target) {
-		this.target = target;
-		this.pkg = target.getPackage().getName();
-		this.name = target.getSimpleName() + "$$EnhancerByJFinal";
-	}
-	
-	/**
-	 * 是否需要代理
-	 */
-//	public boolean needProxy() {
-//		return proxyMethodList.size() > 0;
-//	}
-	
-	public Class<?> getTarget() {
-		return target;
-	}
-	
-	public String getPkg() {
-		return pkg;
-	}
-	
-	public String getName() {
-		return name;
-	}
-	
-	public String getSourceCode() {
-		return sourceCode;
-	}
-	
-	public void setSourceCode(String sourceCode) {
-		this.sourceCode = sourceCode;
-	}
-	
-	public Map<String, byte[]> getByteCode() {
-		return byteCode;
-	}
-	
-	public void setByteCode(Map<String, byte[]> byteCode) {
-		this.byteCode = byteCode;
-	}
-	
-	public Class<?> getClazz() {
-		return clazz;
-	}
-	
-	public void setClazz(Class<?> clazz) {
-		this.clazz = clazz;
-	}
-	
-//	public void addProxyMethod(ProxyMethod proxyMethod) {
-//		proxyMethodList.add(proxyMethod);
-//	}
-	
-//	public List<ProxyMethod> getProxyMethodList() {
-//		return proxyMethodList;
-//	}
-}
-
-
-
-
-
--- a/src/main/java/com/jfinal/proxy/ProxyClassLoader.java
+++ b/src/main/java/com/jfinal/proxy/ProxyClassLoader.java
@ -1,70 +0,0 @@
-/**
- * Copyright (c) 2011-2019, James Zhan 詹波 (jfinal@126.com).
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.jfinal.proxy;
-
-import java.util.Map;
-import java.util.Map.Entry;
-import java.util.concurrent.ConcurrentHashMap;
-
-/**
- * ProxyClassLoader
- */
-public class ProxyClassLoader extends ClassLoader {
-	
-	protected Map<String, byte[]> byteCodeMap = new ConcurrentHashMap<>();
-	
-	static {
-		registerAsParallelCapable();
-	}
-	
-	public ProxyClassLoader() {
-		super(getParentClassLoader());
-	}
-	
-	protected static ClassLoader getParentClassLoader() {
-		ClassLoader ret = Thread.currentThread().getContextClassLoader();
-		return ret != null ? ret : ProxyClassLoader.class.getClassLoader();
-	}
-	
-	public Class<?> loadProxyClass(ProxyClass proxyClass) {
-		for (Entry<String, byte[]> e : proxyClass.getByteCode().entrySet()) {
-			byteCodeMap.putIfAbsent(e.getKey(), e.getValue());
-		}
-		
-		try {
-			return loadClass(proxyClass.getPkg() + "." + proxyClass.getName());
-		} catch (ClassNotFoundException e) {
-			throw new RuntimeException(e);
-		}
-	}
-	
-	@Override
-	protected Class<?> findClass(String name) throws ClassNotFoundException {
-		byte[] bytes = byteCodeMap.get(name);
-		if (bytes != null) {
-			Class<?> ret = defineClass(name, bytes, 0, bytes.length);
-			byteCodeMap.remove(name);
-			return ret;
-		}
-		
-		return super.findClass(name);
-	}
-}
-
-
-
-
--- a/src/main/java/com/jfinal/proxy/ProxyCompiler.java
+++ b/src/main/java/com/jfinal/proxy/ProxyCompiler.java
@ -1,239 +0,0 @@
-/**
- * Copyright (c) 2011-2019, James Zhan 詹波 (jfinal@126.com).
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.jfinal.proxy;
-
-import java.io.ByteArrayOutputStream;
-import java.io.File;
-import java.io.IOException;
-import java.io.OutputStream;
-import java.net.URI;
-import java.net.URL;
-import java.net.URLClassLoader;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Map.Entry;
-import java.util.Objects;
-import javax.tools.DiagnosticCollector;
-import javax.tools.FileObject;
-import javax.tools.ForwardingJavaFileManager;
-import javax.tools.JavaCompiler;
-import javax.tools.JavaFileManager;
-import javax.tools.JavaFileObject;
-import javax.tools.SimpleJavaFileObject;
-import javax.tools.ToolProvider;
-// import com.jfinal.log.Log;
-
-/**
- * ProxyCompiler
- * 
- * https://www.programcreek.com/java-api-examples/?api=javax.tools.JavaCompiler
- */
-public class ProxyCompiler {
-	
-	// protected static final Log log = Log.getLog(ProxyCompiler.class);
-	
-	// protected List<String> options = Arrays.asList("-target", "1.8" /*, "-parameters"*/);
-	protected volatile List<String> options = null;
-	
-	protected List<String> getOptions() {
-		if (options != null) {
-			return options;
-		}
-		
-		synchronized (this) {
-			if (options != null) {
-				return options;
-			}
-			
-			List<String> ret = new ArrayList<>();
-			ret.add("-target");
-			ret.add("1.8");
-			
-			String cp = getClassPath();
-			if (cp != null && cp.trim().length() != 0) {
-				ret.add("-classpath");
-				ret.add(cp);
-			}
-			
-			options = ret;
-			return options;
-		}
-	}
-	
-	/**
-	 * 兼容 tomcat 丢失 class path，否则无法编译
-	 */
-	protected String getClassPath() {
-		URLClassLoader classLoader = getURLClassLoader();
-		if (classLoader == null) {
-			return null;
-		}
-		
-		int index = 0;
-		boolean isWindows = isWindows();
-		StringBuilder ret = new StringBuilder();
-		for (URL url : classLoader.getURLs()) {
-			if (index++ > 0) {
-				ret.append(File.pathSeparator);
-			}
-			
-			String path = url.getFile();
-			
-			// 如果是 windows 系统，去除前缀字符 '/'
-			if (isWindows && path.startsWith("/")) {
-				path = path.substring(1);
-			}
-			
-			// 去除后缀字符 '/'
-			if (path.length() > 1 && (path.endsWith("/") || path.endsWith(File.separator))) {
-				path = path.substring(0, path.length() - 1);
-			}
-			
-			ret.append(path);
-		}
-		
-		return ret.toString();
-	}
-	
-	protected boolean isWindows() {
-		String osName = System.getProperty("os.name", "unknown");
-		return osName.toLowerCase().indexOf("windows") != -1;
-	}
-	
-	protected URLClassLoader getURLClassLoader() {
-		ClassLoader ret = Thread.currentThread().getContextClassLoader();
-		if (ret == null) {
-			ret = ProxyCompiler.class.getClassLoader();
-		}
-		return (ret instanceof URLClassLoader) ? (URLClassLoader)ret : null;
-	}
-	
-	public void compile(ProxyClass proxyClass) {
-		JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
-		if (compiler == null) {
-			throw new RuntimeException("Can not get javax.tools.JavaCompiler, check whether \"tools.jar\" is in the environment variable CLASSPATH \n" +
-										"Visit https://jfinal.com/doc/4-8 for details \n");
-		}
-		
-		DiagnosticCollector<JavaFileObject> collector = new DiagnosticCollector<>();
-		try (MyJavaFileManager javaFileManager = new MyJavaFileManager(compiler.getStandardFileManager(collector, null, null))) {
-			
-			MyJavaFileObject javaFileObject = new MyJavaFileObject(proxyClass.getName(), proxyClass.getSourceCode());
-			Boolean result = compiler.getTask(null, javaFileManager, collector, getOptions(), null, Arrays.asList(javaFileObject)).call();
-			outputCompileError(result, collector);
-			
-			Map<String, byte[]> ret = new HashMap<>();
-			for (Entry<String, MyJavaFileObject> e : javaFileManager.fileObjects.entrySet()) {
-				ret.put(e.getKey(), e.getValue().getByteCode());
-			}
-			
-			proxyClass.setByteCode(ret);
-		} catch (IOException e) {
-			throw new RuntimeException(e);
-		}
-	}
-	
-	protected void outputCompileError(Boolean result, DiagnosticCollector<JavaFileObject> collector) {
-		if (! result) {
-			// collector.getDiagnostics().forEach(item -> log.error(item.toString()));
-			collector.getDiagnostics().forEach(item -> System.out.println(item.toString()));
-		}
-	}
-	
-	public ProxyCompiler setCompileOptions(List<String> options) {
-		Objects.requireNonNull(options, "options can not be null");
-		this.options = options;
-		return this;
-	}
-	
-	public ProxyCompiler addCompileOption(String option) {
-		Objects.requireNonNull(option, "option can not be null");
-		options.add(option);
-		return this;
-	}
-	
-	public static class MyJavaFileObject extends SimpleJavaFileObject {
-		
-		private String source;
-		private ByteArrayOutputStream outPutStream;
-		
-		public MyJavaFileObject(String name, String source) {
-			super(URI.create("String:///" + name + Kind.SOURCE.extension), Kind.SOURCE);
-			this.source = source;
-		}
-		
-		public MyJavaFileObject(String name, Kind kind) {
-			super(URI.create("String:///" + name + kind.extension), kind);
-			source = null;
-		}
-		
-		@Override
-		public CharSequence getCharContent(boolean ignoreEncodingErrors) {
-			if (source == null) {
-				throw new IllegalStateException("source field can not be null");
-			}
-			return source;
-		}
-		
-		@Override
-		public OutputStream openOutputStream() throws IOException {
-			outPutStream = new ByteArrayOutputStream();
-			return outPutStream;
-		}
-		
-		public byte[] getByteCode() {
-			return outPutStream.toByteArray();
-		}
-	}
-	
-	public static class MyJavaFileManager extends ForwardingJavaFileManager<JavaFileManager> {
-		
-		public Map<String, MyJavaFileObject> fileObjects = new HashMap<>();
-		
-		public MyJavaFileManager(JavaFileManager fileManager) {
-			super(fileManager);
-		}
-		
-		@Override
-		public JavaFileObject getJavaFileForOutput(Location location, String qualifiedClassName, JavaFileObject.Kind kind, FileObject sibling) throws IOException {
-			MyJavaFileObject javaFileObject = new MyJavaFileObject(qualifiedClassName, kind);
-			fileObjects.put(qualifiedClassName, javaFileObject);
-			return javaFileObject;
-		}
-		
-		// 是否在编译时依赖另一个类的情况下用到本方法 ?
-		@Override
-		public JavaFileObject getJavaFileForInput(Location location, String className, JavaFileObject.Kind kind) throws IOException {
-			JavaFileObject javaFileObject = fileObjects.get(className);
-			if (javaFileObject == null) {
-				javaFileObject = super.getJavaFileForInput(location, className, kind);
-			}
-			return javaFileObject;
-		}
-	}
-}
-
-
-
-
-
-
-
-
--- a/src/main/java/com/jfinal/template/Engine.java
+++ b/src/main/java/com/jfinal/template/Engine.java
@ -279,11 +279,6 @@ public class Engine {
 		return this;
 	}
 	
-	public Engine removeSharedObject(String name) {
-		config.removeSharedObject(name);
-		return this;
-	}
-	
 	/**
 	 * Set output directive factory
 	 */
@ -293,33 +288,25 @@ public class Engine {
 	}
 	
 	/**
-	 * 添加自定义指令
-	 * 
-	 * 建议添加自定义指令时明确指定 keepLineBlank 变量值，其规则如下：
-	 *   1：keepLineBlank 为 true 时， 该指令所在行的前后空白字符以及末尾字符 '\n' 将会被保留
-	 *      一般用于具有输出值的指令，例如 #date、#para 等指令
-	 *    
-	 *   2：keepLineBlank 为 false 时，该指令所在行的前后空白字符以及末尾字符 '\n' 将会被删除
-	 *      一般用于没有输出值的指令，例如 #for、#if、#else、#end 这种性质的指令
-	 * 
+	 * Add directive
 	 * <pre>
-	 * 	示例：
-	 * 	addDirective("now", NowDirective.class, true)
+	 * 示例：
+	 * addDirective("now", NowDirective.class)
 	 * </pre>
 	 */
-	public Engine addDirective(String directiveName, Class<? extends Directive> directiveClass, boolean keepLineBlank) {
-		config.addDirective(directiveName, directiveClass, keepLineBlank);
-		return this;
-	}
-	
-	/**
-	 * 添加自定义指令，keepLineBlank 使用默认值
-	 */
 	public Engine addDirective(String directiveName, Class<? extends Directive> directiveClass) {
 		config.addDirective(directiveName, directiveClass);
 		return this;
 	}
 	
+	/**
+	 * 该方法已被 addDirective(String, Class<? extends Directive>) 所代替
+	 */
+	@Deprecated
+	public Engine addDirective(String directiveName, Directive directive) {
+		return addDirective(directiveName, directive.getClass());
+	}
+	
 	/**
 	 * Remove directive
 	 */
@ -486,24 +473,16 @@ public class Engine {
 	}
 	
 	/**
-	 * Enjoy 模板引擎对 UTF-8 的 encoding 做过性能优化，某些罕见字符
-	 * 无法被编码，可以配置为 JdkEncoderFactory 解决问题:
-	 * 		engine.setEncoderFactory(new JdkEncoderFactory());
+	 * Enjoy 模板引擎对 UTF-8 的 encoding 做过性能优化，某些偏门字符在
+	 * 被编码为 UTF-8 时会出现异常，此时可以通过继承扩展 EncoderFactory
+	 * 来解决编码异常，具体用法参考：
+	 *     http://www.jfinal.com/feedback/5340
 	 */
 	public Engine setEncoderFactory(EncoderFactory encoderFactory) {
 		config.setEncoderFactory(encoderFactory);
 		return this;
 	}
 	
-	/**
-	 * 配置为 JdkEncoderFactory，支持 utf8mb4，支持 emoji 表情字符，
-	 * 支持各种罕见字符编码
-	 */
-	public Engine setToJdkEncoderFactory() {
-		config.setEncoderFactory(new com.jfinal.template.io.JdkEncoderFactory());
-		return this;
-	}
-	
 	public Engine setWriterBufferSize(int bufferSize) {
 		config.setWriterBufferSize(bufferSize);
 		return this;
@ -542,10 +521,10 @@ public class Engine {
 	 * 
 	 * 系统当前默认 FieldGetter 实现类及其位置如下：
 	 * GetterMethodFieldGetter  ---> 调用 getter 方法取值
-	 * RealFieldGetter			---> 直接获取 public 型的 object.field 值
 	 * ModelFieldGetter			---> 调用 Model.get(String) 方法取值
 	 * RecordFieldGetter			---> 调用 Record.get(String) 方法取值
-	 * MapFieldGetter			---> 调用 Map.get(String) 方法取值
+	 * MapFieldGetter			---> 调用 Map.get(String) 方法取值 
+	 * RealFieldGetter			---> 直接获取 public 型的 object.field 值
 	 * ArrayLengthGetter			---> 获取数组长度
 	 * 
 	 * 根据以上次序，如果要插入 IsMethodFieldGetter 到 GetterMethodFieldGetter
@ -572,19 +551,8 @@ public class Engine {
 		FieldKit.removeFieldGetter(fieldGetterClass);
 	}
 	
-	public static void setFastFieldKeyBuilder(boolean enable) {
-		FieldKeyBuilder.setFastFieldKeyBuilder(enable);
-	}
-	
-	/**
-	 * 设置极速模式
-	 * 
-	 * 极速模式将生成代理对象来消除 java.lang.reflect.Method.invoke(...) 调用，
-	 * 性能提升 12.9%
-	 */
-	public static void setFastMode(boolean fastMode) {
-		FieldKit.setFastMode(fastMode);
-		FieldKeyBuilder.setFastFieldKeyBuilder(fastMode);
+	public static void setToFastFieldKeyBuilder() {
+		FieldKeyBuilder.setToFastFieldKeyBuilder();
 	}
 }

--- a/src/main/java/com/jfinal/template/EngineConfig.java
+++ b/src/main/java/com/jfinal/template/EngineConfig.java
@ -19,11 +19,9 @@ package com.jfinal.template;
 import java.lang.reflect.Method;
 import java.util.ArrayList;
 import java.util.HashMap;
-import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
-import java.util.Set;
 import com.jfinal.kit.StrKit;
 import com.jfinal.template.expr.ast.ExprList;
 import com.jfinal.template.expr.ast.SharedMethodKit;
@ -61,9 +59,6 @@ public class EngineConfig {
 	private Map<String, Class<? extends Directive>> directiveMap = new HashMap<String, Class<? extends Directive>>(64, 0.5F);
 	private SharedMethodKit sharedMethodKit = new SharedMethodKit();
 	
-	// 保留指令所在行空白字符的指令
-	private Set<String> keepLineBlankDirectives = new HashSet<>();
-	
 	private boolean devMode = false;
 	private boolean reloadModifiedSharedFunctionInDevMode = true;
 	private String baseTemplatePath = null;
@ -71,19 +66,14 @@ public class EngineConfig {
 	private String datePattern = "yyyy-MM-dd HH:mm";
 	
 	public EngineConfig() {
-		// 内置指令 #() 与 #include() 需要配置，保留指令所在行前后空白字符以及行尾换行字符 '\n'
-		setKeepLineBlank("output", true);
-		setKeepLineBlank("include", true);
-		
 		// Add official directive of Template Engine
-		addDirective("render", RenderDirective.class, true);
-		addDirective("date", DateDirective.class, true);
-		addDirective("escape", EscapeDirective.class, true);
-		addDirective("random", RandomDirective.class, true);
-		addDirective("number", NumberDirective.class, true);
-		
-		addDirective("call", CallDirective.class, false);
-		addDirective("string", StringDirective.class, false);
+		addDirective("render", RenderDirective.class);
+		addDirective("date", DateDirective.class);
+		addDirective("escape", EscapeDirective.class);
+		addDirective("string", StringDirective.class);
+		addDirective("random", RandomDirective.class);
+		addDirective("number", NumberDirective.class);
+		addDirective("call", CallDirective.class);
 		
 		// Add official shared method of Template Engine
 		addSharedMethod(new SharedMethodLib());
@ -219,16 +209,10 @@ public class EngineConfig {
 		sharedObjectMap.put(name, object);
 	}
 	
-	public Map<String, Object> getSharedObjectMap() {
+	Map<String, Object> getSharedObjectMap() {
 		return sharedObjectMap;
 	}
 	
-	public synchronized void removeSharedObject(String name) {
-		if (sharedObjectMap != null) {
-			sharedObjectMap.remove(name);
-		}
-	}
-	
 	/**
 	 * Set output directive factory
 	 */
@ -328,7 +312,12 @@ public class EngineConfig {
 		this.reloadModifiedSharedFunctionInDevMode = reloadModifiedSharedFunctionInDevMode;
 	}
 	
-	public synchronized void addDirective(String directiveName, Class<? extends Directive> directiveClass, boolean keepLineBlank) {
+	@Deprecated
+	public void addDirective(String directiveName, Directive directive) {
+		addDirective(directiveName, directive.getClass());
+	}
+	
+	public synchronized void addDirective(String directiveName, Class<? extends Directive> directiveClass) {
 		if (StrKit.isBlank(directiveName)) {
 			throw new IllegalArgumentException("directive name can not be blank");
 		}
@ -338,15 +327,7 @@ public class EngineConfig {
 		if (directiveMap.containsKey(directiveName)) {
 			throw new IllegalArgumentException("directive already exists : " + directiveName);
 		}
-		
 		directiveMap.put(directiveName, directiveClass);
-		if (keepLineBlank) {
-			keepLineBlankDirectives.add(directiveName);
-		}
-	}
-	
-	public void addDirective(String directiveName, Class<? extends Directive> directiveClass) {
-		addDirective(directiveName, directiveClass, false);
 	}
 	
 	public Class<? extends Directive> getDirective(String directiveName) {
@ -355,19 +336,6 @@ public class EngineConfig {
 	
 	public void removeDirective(String directiveName) {
 		directiveMap.remove(directiveName);
-		keepLineBlankDirectives.remove(directiveName);
-	}
-	
-	public void setKeepLineBlank(String directiveName, boolean keepLineBlank) {
-		if (keepLineBlank) {
-			keepLineBlankDirectives.add(directiveName);
-		} else {
-			keepLineBlankDirectives.remove(directiveName);
-		}
-	}
-	
-	public Set<String> getKeepLineBlankDirectives() {
-		return keepLineBlankDirectives;
 	}
 	
 	/**
--- a/src/main/java/com/jfinal/template/Template.java
+++ b/src/main/java/com/jfinal/template/Template.java
@ -102,21 +102,13 @@ public class Template {
 		}
 	}
 	
-	/**
-	 * 支持无 data 参数，渲染到 String 中去 <br>
-	 * 适用于数据在模板中通过表达式和语句直接计算得出等等应用场景
-	 */
-	public String renderToString() {
-		return renderToString(null);
-	}
-	
 	/**
 	 * 渲染到 StringBuilder 中去
 	 */
 	public StringBuilder renderToStringBuilder(Map<?, ?> data) {
 		FastStringWriter fsw = new FastStringWriter();
 		render(data, fsw);
-		return fsw.toStringBuilder();
+		return fsw.getBuffer();
 	}
 	
 	/**
--- a/src/main/java/com/jfinal/template/expr/ast/FastFieldGetter.java
+++ b/src/main/java/com/jfinal/template/expr/ast/FastFieldGetter.java
@ -1,181 +0,0 @@
-package com.jfinal.template.expr.ast;
-
-import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
-import com.jfinal.kit.StrKit;
-import com.jfinal.proxy.ProxyClassLoader;
-
-/**
- * 使用 jfinal proxy 机制消除 java.lang.reflect.Method.invoke(...)
- * 提升性能，并且同时支持动态类型的 field 表达式取值
- */
-public class FastFieldGetter extends FieldGetter {
-	
-	protected static ProxyGenerator generator = new ProxyGenerator();
-	protected static ProxyCompiler compiler = new ProxyCompiler();
-	protected static ProxyClassLoader classLoader = new ProxyClassLoader();
-	protected static Map<Class<?>, Proxy> cache = new ConcurrentHashMap<>(512, 0.25F);
-	
-	protected static boolean outputCompileError = false;
-	
-	protected Proxy proxy;
-	protected java.lang.reflect.Method getterMethod;
-	
-	public FastFieldGetter(Proxy proxy, java.lang.reflect.Method getterMethod) {
-		this.proxy = proxy;
-		this.getterMethod = getterMethod;
-	}
-	
-	/**
-	 * 仅用于配置 Engine.addFieldGetter(0, new FastFieldGetter());
-	 */
-	public FastFieldGetter() {
-		this(null, null);
-	}
-	
-	public FieldGetter takeOver(Class<?> targetClass, String fieldName) {
-		if (MethodKit.isForbiddenClass(targetClass)) {
-			throw new RuntimeException("Forbidden class: " + targetClass.getName());
-		}
-		
-		String getterName = "get" + StrKit.firstCharToUpperCase(fieldName);
-		java.lang.reflect.Method[] methodArray = targetClass.getMethods();
-		for (java.lang.reflect.Method method : methodArray) {
-			if (method.getName().equals(getterName) && method.getParameterCount() == 0) {
-				
-				Proxy proxy = cache.get(targetClass);
-				if (proxy == null) {
-					synchronized (targetClass) {
-						proxy = cache.get(targetClass);
-						if (proxy == null) {	
-							try {
-								proxy = createProxy(targetClass, fieldName);
-							} catch (Throwable e) {
-								return null;
-							}
-							cache.putIfAbsent(targetClass, proxy);
-						}
-					}
-				}
-				
-				return new FastFieldGetter(proxy, method);
-			}
-		}
-		
-		return null;
-	}
-	
-	public Object get(Object target, String fieldName) throws Exception {
-		// return getterMethod.invoke(target, ExprList.NULL_OBJECT_ARRAY);
-		return proxy.getValue(target, fieldName);
-	}
-	
-	protected Proxy createProxy(Class<?> targetClass, String fieldName) {
-		ProxyClass proxyClass = new ProxyClass(targetClass);
-		String sourceCode = generator.generate(proxyClass);
-		// System.out.println(sourceCode);
-		
-		proxyClass.setSourceCode(sourceCode);
-		compiler.compile(proxyClass);
-		Class<?> retClass = classLoader.loadProxyClass(proxyClass);
-		proxyClass.setClazz(retClass);
-		try {
-			return (Proxy)retClass.newInstance();
-		} catch (ReflectiveOperationException e) {
-			throw new RuntimeException(e);
-		}
-	}
-	
-	public String toString() {
-		return getterMethod.toString();
-	}
-	
-	// ---------
-	
-	/**
-	 * 代理接口
-	 */
-	public static interface Proxy {
-		public Object getValue(Object target, String fieldName);
-	}
-	
-	// ---------
-	
-	/**
-	 * 代理类
-	 */
-	static class ProxyClass extends com.jfinal.proxy.ProxyClass {
-		
-		private String name;		// 类名
-		
-		public ProxyClass(Class<?> target) {
-			super(target);
-			
-			name = target.getSimpleName() + "$$EnhancerByJFinal_FieldGetter";
-		}
-		
-		public String getName() {
-			return name;
-		}
-	}
-	
-	// ---------
-	
-	/**
-	 * 代理生成器
-	 */
-	static class ProxyGenerator {
-		
-		String generate(ProxyClass proxyClass) {
-			StringBuilder ret = new StringBuilder(1024);
-			
-			Class<?> targetClass = proxyClass.getTarget();
-			String className = proxyClass.getName();
-			
-			ret.append("package ").append(proxyClass.getPkg()).append(";\n\n");
-			ret.append("import com.jfinal.template.expr.ast.FastFieldGetter.Proxy;\n\n");
-			ret.append("public class ").append(className).append(" implements Proxy {\n\n");
-			ret.append("\tpublic Object getValue(Object target, String fieldName) {\n");
-			ret.append("\t\tint hash = fieldName.hashCode();\n");
-			ret.append("\t\tswitch (hash) {\n");
-			
-			java.lang.reflect.Method[] methodArray = targetClass.getMethods();
-			for (java.lang.reflect.Method method : methodArray) {
-				String mn = method.getName();
-				if (method.getParameterCount() == 0 && mn.startsWith("get") && (!mn.equals("getClass"))) {
-					String fieldName = StrKit.firstCharToLowerCase(mn.substring(3));
-					ret.append("\t\tcase ").append(fieldName.hashCode()).append(" :\n");
-					ret.append("\t\t\treturn ((").append(targetClass.getName()).append(")target).").append(mn).append("();\n");
-				}
-			}
-			
-			ret.append("\t\tdefault :\n");
-			ret.append("\t\t\tthrow new RuntimeException(\"Can not access the field \\\"\" + target.getClass().getName() + \".\" + fieldName + \"\\\"\");\n");
-			
-			ret.append("\t\t}\n");
-			ret.append("\t}\n");
-			ret.append("}\n");
-			
-			return ret.toString();
-		}	
-	}
-	
-	// ---------
-	
-	public static void setOutputCompileError(boolean outputCompileError) {
-		FastFieldGetter.outputCompileError = outputCompileError;
-	}
-	
-	/**
-	 * 代理编译器
-	 */
-	static class ProxyCompiler extends com.jfinal.proxy.ProxyCompiler {
-		@Override
-		protected void outputCompileError(Boolean result, javax.tools.DiagnosticCollector<javax.tools.JavaFileObject> collector) {
-			if (outputCompileError) {
-				super.outputCompileError(result, collector);
-			}
-		}
-	}
-}
-
--- a/src/main/java/com/jfinal/template/expr/ast/FieldGetters.java
+++ b/src/main/java/com/jfinal/template/expr/ast/FieldGetters.java
@ -68,7 +68,7 @@ public class FieldGetters {
 			String getterName = "get" + StrKit.firstCharToUpperCase(fieldName);
 			java.lang.reflect.Method[] methodArray = targetClass.getMethods();
 			for (java.lang.reflect.Method method : methodArray) {
-				if (method.getName().equals(getterName) && method.getParameterCount() == 0) {
+				if (method.getName().equals(getterName) && method.getParameterTypes().length == 0) {
 					// if (MethodKit.isForbiddenMethod(getterName)) {
 						// throw new RuntimeException("Forbidden method: " + getterName);
 					// }
@ -115,7 +115,7 @@ public class FieldGetters {
 			String isMethodName = "is" + StrKit.firstCharToUpperCase(fieldName);
 			java.lang.reflect.Method[] methodArray = targetClass.getMethods();
 			for (java.lang.reflect.Method method : methodArray) {
-				if (method.getName().equals(isMethodName) && method.getParameterCount() == 0) {
+				if (method.getName().equals(isMethodName) && method.getParameterTypes().length == 0) {
 					Class<?> returnType = method.getReturnType();
 					if (returnType == Boolean.class || returnType == boolean.class) {
 						return new IsMethodFieldGetter(method);
--- a/src/main/java/com/jfinal/template/expr/ast/FieldKeyBuilder.java
+++ b/src/main/java/com/jfinal/template/expr/ast/FieldKeyBuilder.java
@ -33,14 +33,10 @@ public abstract class FieldKeyBuilder {
 	}
 	
 	/**
-	 * 开启 FastFieldKeyBuilder，性能更高
+	 * 设置为官方提供的 FastFieldKeyBuilder 实现，性能更高
 	 */
-	public static void setFastFieldKeyBuilder(boolean enable) {
-		if (enable) {
-			instance = new FastFieldKeyBuilder();
-		} else {
-			instance = new StrictFieldKeyBuilder();
-		}
+	public static void setToFastFieldKeyBuilder() {
+		instance = new FastFieldKeyBuilder();
 	}
 	
 	/**
--- a/src/main/java/com/jfinal/template/expr/ast/FieldKit.java
+++ b/src/main/java/com/jfinal/template/expr/ast/FieldKit.java
@ -140,36 +140,6 @@ public class FieldKit {
 	public static void clearCache() {
 		fieldGetterCache.clear();
 	}
-	
-	/**
-	 * 设置极速模式
-	 * 
-	 * 极速模式将生成代理对象来消除 java.lang.reflect.Method.invoke(...) 调用，
-	 * 性能提升 12.9%
-	 */
-	public static synchronized void setFastMode(boolean fastMode) {
-		if (fastMode) {
-			if ( !contains(FastFieldGetter.class) ) {
-				addFieldGetterToFirst(new FastFieldGetter());
-			}
-		} else {
-			if (contains(FastFieldGetter.class)) {
-				removeFieldGetter(FastFieldGetter.class);
-			}
-		}
-	}
-	
-	/**
-	 * 判断是否包含某个 FieldGetter
-	 */
-	public static boolean contains(Class<? extends FieldGetter> fieldGetterClass) {
-		for (FieldGetter fg : getters) {
-			if (fg.getClass() == fieldGetterClass) {
-				return true;
-			}
-		}
-		return false;
-	}
 }


--- a/src/main/java/com/jfinal/template/expr/ast/Logic.java
+++ b/src/main/java/com/jfinal/template/expr/ast/Logic.java
@ -16,6 +16,10 @@

 package com.jfinal.template.expr.ast;

+import java.lang.reflect.Array;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.Map;
 import com.jfinal.template.TemplateException;
 import com.jfinal.template.expr.Sym;
 import com.jfinal.template.stat.Location;
@ -33,6 +37,16 @@ public class Logic extends Expr {
 	private Expr left;		// ! 运算没有 left 参数
 	private Expr right;
 	
+	// 默认为新工作模式
+	private static boolean newWorkMode = true;
+	/**
+	 * 设置为旧工作模式，为了兼容 jfinal 3.3 之前的版本
+	 */
+	@Deprecated
+	public static void setToOldWorkMode() {
+		newWorkMode = false;
+	}
+	
 	/**
 	 * 构造 || && 结点
 	 */
@ -93,6 +107,12 @@ public class Logic extends Expr {
 	 * 2：boolean 类型，原值返回
 	 * 3：String、StringBuilder 等一切继承自 CharSequence 类的对象，返回 length > 0
 	 * 4：其它返回 true
+	 * 
+	 * 通过 Logic.setToOldWorkMode() 设置，可支持老版本中的以下四个规则：
+	 * 1：Number 类型，返回 value != 0
+	 * 2：Map、Collection(List被包括在内) 返回 size() > 0
+	 * 3：数组，返回 length > 0
+	 * 4：Iterator 返回 hasNext() 值
 	 */
 	public static boolean isTrue(Object v) {
 		if (v == null) {
@ -102,11 +122,38 @@ public class Logic extends Expr {
 		if (v instanceof Boolean) {
 			return (Boolean)v;
 		}
-		
 		if (v instanceof CharSequence) {
 			return ((CharSequence)v).length() > 0;
 		}
 		
+		// 如果不是新工作模式，则对下面类型进行判断
+		if ( !newWorkMode ) {
+			if (v instanceof Number) {
+				if (v instanceof Double) {
+					return ((Number)v).doubleValue() != 0;
+				}
+				if (v instanceof Float) {
+					return ((Number)v).floatValue() != 0;
+				}
+				return ((Number)v).intValue() != 0;
+			}
+			
+			// 下面四种类型的判断已提供了 shared method 扩展，用法如下：
+			// #if(notEmpty(object)) 以及 #if(isEmpty(object))
+			if (v instanceof Collection) {
+				return ((Collection<?>)v).size() > 0;
+			}
+			if (v instanceof Map) {
+				return ((Map<?, ?>)v).size() > 0;
+			}
+			if (v.getClass().isArray()) {
+				return Array.getLength(v) > 0;
+			}
+			if (v instanceof Iterator) {
+				return ((Iterator<?>)v).hasNext();
+			}
+		}
+		
 		return true;
 	}
 	
--- a/src/main/java/com/jfinal/template/expr/ast/Method.java
+++ b/src/main/java/com/jfinal/template/expr/ast/Method.java
@ -79,7 +79,7 @@ public class Method extends Expr {
 		try {
 			
 			MethodInfo methodInfo = MethodKit.getMethod(target.getClass(), methodName, argValues);
-			if (methodInfo.notNull()) {
+			if (methodInfo != null) {
 				return methodInfo.invoke(target, argValues);
 			}
 			
--- a/src/main/java/com/jfinal/template/expr/ast/MethodInfo.java
+++ b/src/main/java/com/jfinal/template/expr/ast/MethodInfo.java
@ -93,29 +93,6 @@ public class MethodInfo {
 		}
 		return ret.append(")").toString();
 	}
-	
-	// --------- 以下代码仅用于支持 NullMethodInfo
-	
-	/**
-	 * 仅供 NullMethodInfo 继承使用
-	 */
-	protected MethodInfo() {
-		this.key = null;
-		this.clazz = null;
-		this.method = null;
-		this.isVarArgs = false;
-		this.paraTypes = null;
-	}
-	
-	/**
-	 * 仅仅 NullMethodInfo 会覆盖此方法并返回 false
-	 *
-	 * 1：MethodKit.getMethod(...) 消除 instanceof 判断
-	 * 2：Method.exec(...) 消除 null 值判断
-	 */
-	public boolean notNull() {
-		return true;
-	}
 }


--- a/src/main/java/com/jfinal/template/expr/ast/MethodKit.java
+++ b/src/main/java/com/jfinal/template/expr/ast/MethodKit.java
@ -41,7 +41,7 @@ public class MethodKit {
 	private static final Set<String> forbiddenMethods = new HashSet<String>(64);
 	private static final Set<Class<?>> forbiddenClasses = new HashSet<Class<?>>(64);
 	private static final Map<Class<?>, Class<?>> primitiveMap = new HashMap<Class<?>, Class<?>>(64);
-	private static final SyncWriteMap<Long, MethodInfo> methodCache = new SyncWriteMap<Long, MethodInfo>(2048, 0.25F);
+	private static final SyncWriteMap<Long, Object> methodCache = new SyncWriteMap<Long, Object>(2048, 0.25F);
 	
 	// 初始化在模板中调用 method 时所在的被禁止使用类
 	static {
@ -49,9 +49,7 @@ public class MethodKit {
 			System.class, Runtime.class, Thread.class, Class.class, ClassLoader.class, File.class,
 			Compiler.class, InheritableThreadLocal.class, Package.class, Process.class,
 			RuntimePermission.class, SecurityManager.class, ThreadGroup.class, ThreadLocal.class,
-			
-			java.lang.reflect.Method.class,
-			java.lang.reflect.Proxy.class
+			java.lang.reflect.Method.class
 		};
 		for (Class<?> c : cs) {
 			forbiddenClasses.add(c);
@ -64,8 +62,8 @@ public class MethodKit {
 			"getClass", "getDeclaringClass", "forName", "newInstance", "getClassLoader",
 			"invoke", // "getMethod", "getMethods", // "getField", "getFields",
 			"notify", "notifyAll", "wait",
-			"exit", "loadLibrary", "halt", // "load",
-			"stop", "suspend", "resume" // "setDaemon", "setPriority"
+			"load", "exit", "loadLibrary", "halt",
+			"stop", "suspend", "resume", "setDaemon", "setPriority",
 		};
 		for (String m : ms) {
 			forbiddenMethods.add(m);
@ -124,17 +122,36 @@ public class MethodKit {
 	public static MethodInfo getMethod(Class<?> targetClass, String methodName, Object[] argValues) {
 		Class<?>[] argTypes = getArgTypes(argValues);
 		Long key = getMethodKey(targetClass, methodName, argTypes);
-		MethodInfo method = methodCache.get(key);
+		Object method = methodCache.get(key);
 		if (method == null) {
-			// 已确保不会返回 null，对于不存在的 Method，只进行一次获取操作
-			// 提升 null safe 表达式性能，未来需要考虑内存泄漏风险
 			method = doGetMethod(key, targetClass, methodName, argTypes);
-			methodCache.putIfAbsent(key, method);
+			if (method != null) {
+				methodCache.putIfAbsent(key, method);
+			} else {
+				// 对于不存在的 Method，只进行一次获取操作，主要为了支持 null safe，未来需要考虑内存泄漏风险
+				methodCache.putIfAbsent(key, Void.class);
+			}
 		}
-		
-		return method;
+		return method instanceof MethodInfo ? (MethodInfo)method : null;
 	}
 	
+	/**
+	 * 获取 getter 方法
+	 * 使用与 Field 相同的 key，避免生成两次 key值
+	 * ---> jfinal 3.5 已将此功能转移至 FieldKit
+	public static MethodInfo getGetterMethod(Long key, Class<?> targetClass, String methodName) {
+		Object getterMethod = methodCache.get(key);
+		if (getterMethod == null) {
+			getterMethod = doGetMethod(key, targetClass, methodName, NULL_ARG_TYPES);
+			if (getterMethod != null) {
+				methodCache.putIfAbsent(key, getterMethod);
+			} else {
+				methodCache.putIfAbsent(key, Void.class);
+			}
+		}
+		return getterMethod instanceof MethodInfo ? (MethodInfo)getterMethod : null;
+	} */
+	
 	static Class<?>[] getArgTypes(Object[] argValues) {
 		if (argValues == null || argValues.length == 0) {
 			return NULL_ARG_TYPES;
@ -150,9 +167,7 @@ public class MethodKit {
 		if (forbiddenClasses.contains(targetClass)) {
 			throw new RuntimeException("Forbidden class: " + targetClass.getName());
 		}
-		
 		// 仅开启 forbiddenClasses 检测
-		// Method、SharedMethod、StaticMethod 已用 MethodKit.isForbiddenMethod(...) 检测
 		// if (forbiddenMethods.contains(methodName)) {
 		// 	throw new RuntimeException("Forbidden method: " + methodName);
 		// }
@ -169,8 +184,7 @@ public class MethodKit {
 				}
 			}
 		}
-		
-		return NullMethodInfo.me;
+		return null;
 	}
 	
 	static boolean matchFixedArgTypes(Class<?>[] paraTypes, Class<?>[] argTypes) {
--- a/src/main/java/com/jfinal/template/expr/ast/NullMethodInfo.java
+++ b/src/main/java/com/jfinal/template/expr/ast/NullMethodInfo.java
@ -1,37 +0,0 @@
-/**
- * Copyright (c) 2011-2019, James Zhan 詹波 (jfinal@126.com).
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.jfinal.template.expr.ast;
-
-/**
- * NullMethodInfo
- * 
- * 1：MethodKit.getMethod(...) 消除 instanceof 判断
- * 2：Method.exec(...) 消除 null 值判断
- */
-public class NullMethodInfo extends MethodInfo {
-	
-	public static final NullMethodInfo me = new NullMethodInfo();
-	
-	public boolean notNull() {
-		return false;
-	}
-	
-	public Object invoke(Object target, Object... args) throws ReflectiveOperationException {
-		throw new RuntimeException("The method invoke(Object, Object...) of NullMethodInfo should not be invoked");
-	}
-}
-
--- a/src/main/java/com/jfinal/template/expr/ast/StaticMethod.java
+++ b/src/main/java/com/jfinal/template/expr/ast/StaticMethod.java
@ -50,14 +50,6 @@ public class StaticMethod extends Expr {
 		} catch (Exception e) {
 			throw new ParseException(e.getMessage(), location, e);
 		}
-		
-		if (MethodKit.isForbiddenClass(this.clazz)) {
-			throw new ParseException("Forbidden class: " + this.clazz.getName(), location);
-		}
-		if (MethodKit.isForbiddenMethod(methodName)) {
-			throw new ParseException("Forbidden method: " + methodName, location);
-		}
-		
 		this.methodName = methodName;
 		this.exprList = exprList;
 		this.location = location;
@ -69,7 +61,7 @@ public class StaticMethod extends Expr {
 		try {
 			MethodInfo methodInfo = MethodKit.getMethod(clazz, methodName, argValues);
 			
-			if (methodInfo.notNull()) {
+			if (methodInfo != null) {
 				if (methodInfo.isStatic()) {
 					return methodInfo.invoke(null, argValues);
 				} else {
--- a/src/main/java/com/jfinal/template/ext/directive/EscapeDirective.java
+++ b/src/main/java/com/jfinal/template/ext/directive/EscapeDirective.java
@ -16,12 +16,9 @@

 package com.jfinal.template.ext.directive;

-import java.io.IOException;
 import com.jfinal.template.Directive;
 import com.jfinal.template.Env;
-import com.jfinal.template.TemplateException;
 import com.jfinal.template.io.Writer;
-import com.jfinal.template.stat.ParseException;
 import com.jfinal.template.stat.Scope;

 /**
@ -32,62 +29,45 @@ import com.jfinal.template.stat.Scope;
 public class EscapeDirective extends Directive {
 	
 	public void exec(Env env, Scope scope, Writer writer) {
-		try {
-			Object value = exprList.eval(scope);
-			
-			if (value instanceof String) {
-				escape((String)value, writer);
-			} else if (value instanceof Number) {
-				Class<?> c = value.getClass();
-				if (c == Integer.class) {
-					writer.write((Integer)value);
-				} else if (c == Long.class) {
-					writer.write((Long)value);
-				} else if (c == Double.class) {
-					writer.write((Double)value);
-				} else if (c == Float.class) {
-					writer.write((Float)value);
-				} else if (c == Short.class) {
-					writer.write((Short)value);
-				} else {
-					writer.write(value.toString());
-				}
-			} else if (value != null) {
-				escape(value.toString(), writer);
-			}
-		} catch(TemplateException | ParseException e) {
-			throw e;
-		} catch(Exception e) {
-			throw new TemplateException(e.getMessage(), location, e);
+		Object value = exprList.eval(scope);
+		if (value != null) {
+			write(writer, escape(value.toString()));
 		}
 	}
 	
-	private void escape(String str, Writer w) throws IOException {
-		for (int i = 0, len = str.length(); i < len; i++) {
+	// TODO 挪到 StrKit 中
+	private String escape(String str) {
+		if (str == null || str.length() == 0) {
+			return str;
+		}
+		
+		int len = str.length();
+		StringBuilder ret = new StringBuilder(len * 2);
+		for (int i = 0; i < len; i++) {
 			char cur = str.charAt(i);
 			switch (cur) {
 			case '<':
-				w.write("&lt;");
+				ret.append("&lt;");
 				break;
 			case '>':
-				w.write("&gt;");
+				ret.append("&gt;");
 				break;
 			case '"':
-				w.write("&quot;");
+				ret.append("&quot;");
 				break;
 			case '\'':
-				// w.write("&apos;");	// IE 不支持 &apos; 考虑 &#39;
-				w.write("&#39;");
+				// ret.append("&apos;");	// IE 不支持 &apos; 考虑 &#39;
+				ret.append("&#39;");
 				break;
 			case '&':
-				w.write("&amp;");
+				ret.append("&amp;");
 				break;
 			default:
-				w.write(str, i, 1);
+				ret.append(cur);
 				break;
 			}
 		}
+
+		return ret.toString();
 	}
 }
-
-
--- a/src/main/java/com/jfinal/template/ext/directive/NumberDirective.java
+++ b/src/main/java/com/jfinal/template/ext/directive/NumberDirective.java
@ -53,9 +53,10 @@ public class NumberDirective extends Directive {
 	
 	private Expr valueExpr;
 	private Expr patternExpr;
+	private int paraNum;
 	
 	public void setExprList(ExprList exprList) {
-		int paraNum = exprList.length();
+		this.paraNum = exprList.length();
 		if (paraNum == 0) {
 			throw new ParseException("The parameter of #number directive can not be blank", location);
 		}
@ -63,8 +64,13 @@ public class NumberDirective extends Directive {
 			throw new ParseException("Wrong number parameter of #number directive, two parameters allowed at most", location);
 		}
 		
-		valueExpr = exprList.getExpr(0);
-		patternExpr = (paraNum == 1 ? null : exprList.getExpr(1));
+		if (paraNum == 1) {
+			this.valueExpr = exprList.getExpr(0);
+			this.patternExpr = null;
+		} else if (paraNum == 2) {
+			this.valueExpr = exprList.getExpr(0);
+			this.patternExpr = exprList.getExpr(1);
+		}
 	}
 	
 	public void exec(Env env, Scope scope, Writer writer) {
@ -73,9 +79,9 @@ public class NumberDirective extends Directive {
 			return ;
 		}
 		
-		if (patternExpr == null) {
+		if (paraNum == 1) {
 			outputWithoutPattern(writer, value);
-		} else {
+		} else if (paraNum == 2) {
 			outputWithPattern(scope, writer, value);
 		}
 	}
--- a/src/main/java/com/jfinal/template/ext/spring/JFinalViewResolver.java
+++ b/src/main/java/com/jfinal/template/ext/spring/JFinalViewResolver.java
@ -194,14 +194,6 @@ public class JFinalViewResolver extends AbstractTemplateViewResolver {
 		engine.setSourceFactory(sourceFactory);
 	}
 	
-	/**
-	 * 设置为 ClassPathSourceFactory 的快捷方法
-	 * ClassPathSourceFactory 将从 CLASSPATH 与 jar 包中读取模板
-	 */
-	public void setToClassPathSourceFactory() {
-		engine.setToClassPathSourceFactory();
-	}
-	
 	/**
 	 * 设置模板基础路径
 	 */
--- a/src/main/java/com/jfinal/template/io/ByteWriter.java
+++ b/src/main/java/com/jfinal/template/io/ByteWriter.java
@ -50,17 +50,15 @@ public class ByteWriter extends Writer {
 	}
 	
 	public void write(String str, int offset, int len) throws IOException {
-		int size, byteLen;
-		while (len > 0) {
-			size = (len > chars.length ? chars.length : len);
-			
-			str.getChars(offset, offset + size, chars, 0);
-			byteLen = encoder.encode(chars, 0, size, bytes);
-			out.write(bytes, 0, byteLen);
-			
-			offset += size;
-			len -= size;
+		while (len > chars.length) {
+			write(str, offset, chars.length);
+			offset += chars.length;
+			len -= chars.length;
 		}
+		
+		str.getChars(offset, offset + len, chars, 0);
+		int byteLen = encoder.encode(chars, 0, len, bytes);
+		out.write(bytes, 0, byteLen);
 	}
 	
 	public void write(String str) throws IOException {
@ -68,17 +66,15 @@ public class ByteWriter extends Writer {
 	}
 	
 	public void write(StringBuilder stringBuilder, int offset, int len) throws IOException {
-		int size, byteLen;
-		while (len > 0) {
-			size = (len > chars.length ? chars.length : len);
-			
-			stringBuilder.getChars(offset, offset + size, chars, 0);
-			byteLen = encoder.encode(chars, 0, size, bytes);
-			out.write(bytes, 0, byteLen);
-			
-			offset += size;
-			len -= size;
+		while (len > chars.length) {
+			write(stringBuilder, offset, chars.length);
+			offset += chars.length;
+			len -= chars.length;
 		}
+		
+		stringBuilder.getChars(offset, offset + len, chars, 0);
+		int byteLen = encoder.encode(chars, 0, len, bytes);
+		out.write(bytes, 0, byteLen);
 	}
 	
 	public void write(StringBuilder stringBuilder) throws IOException {
--- a/src/main/java/com/jfinal/template/io/CharWriter.java
+++ b/src/main/java/com/jfinal/template/io/CharWriter.java
@ -44,16 +44,14 @@ public class CharWriter extends Writer {
 	}
 	
 	public void write(String str, int offset, int len) throws IOException {
-		int size;
-		while (len > 0) {
-			size = (len > chars.length ? chars.length : len);
-			
-			str.getChars(offset, offset + size, chars, 0);
-			out.write(chars, 0, size);
-			
-			offset += size;
-			len -= size;
+		while (len > chars.length) {
+			write(str, offset, chars.length);
+			offset += chars.length;
+			len -= chars.length;
 		}
+		
+		str.getChars(offset, offset + len, chars, 0);
+		out.write(chars, 0, len);
 	}
 	
 	public void write(String str) throws IOException {
@ -61,16 +59,14 @@ public class CharWriter extends Writer {
 	}
 	
 	public void write(StringBuilder stringBuilder, int offset, int len) throws IOException {
-		int size;
-		while (len > 0) {
-			size = (len > chars.length ? chars.length : len);
-			
-			stringBuilder.getChars(offset, offset + size, chars, 0);
-			out.write(chars, 0, size);
-			
-			offset += size;
-			len -= size;
+		while (len > chars.length) {
+			write(stringBuilder, offset, chars.length);
+			offset += chars.length;
+			len -= chars.length;
 		}
+		
+		stringBuilder.getChars(offset, offset + len, chars, 0);
+		out.write(chars, 0, len);
 	}
 	
 	public void write(StringBuilder stringBuilder) throws IOException {
--- a/src/main/java/com/jfinal/template/io/DateFormats.java
+++ b/src/main/java/com/jfinal/template/io/DateFormats.java
@ -25,7 +25,7 @@ import java.util.Map;
 */
 public class DateFormats {
 	
-	private Map<String, SimpleDateFormat> map = new HashMap<String, SimpleDateFormat>(16, 0.25F);
+	private Map<String, SimpleDateFormat> map = new HashMap<String, SimpleDateFormat>();
 	
 	public SimpleDateFormat getDateFormat(String datePattern) {
 		SimpleDateFormat ret = map.get(datePattern);
--- a/src/main/java/com/jfinal/template/io/FastStringWriter.java
+++ b/src/main/java/com/jfinal/template/io/FastStringWriter.java
@ -16,153 +16,102 @@

 package com.jfinal.template.io;

-import java.io.IOException;
 import java.io.Writer;

 /**
 * FastStringWriter
 * 
 * <pre>
- * 由 JDK 中 Writer 改造而来，在其基础之上做了如下改变：
- * 1：添加 char[] value 直接保存 char 值
- * 2：添加 int len 记录数据长度
- * 3：去掉 synchronized 操作
- * 4：添加 MAX_BUFFER_SIZE，限定 value 被重用的最大长度
- * 5：去掉了 close() 方法声明中的 throws IOException，并添加缓存回收逻辑
+ * 由 JDK 中 StringWriter 改造而来，在其基础之上做了如下改变：
+ * 1：StringBuffer 属性改为 StringBuilder，避免了前者的 synchronized 操作
+ * 2：添加了 MAX_SIZE 属性
+ * 3：去掉了 close() 方法声明中的 throws IOException，并添加了代码，原先该方法中无任何代码
 * </pre>
 */
 public class FastStringWriter extends Writer {
 	
-	private char[] value;
-	private int len;
+	private StringBuilder buf;
 	
-	private static int MAX_BUFFER_SIZE = 1024 * 256;		// 1024 * 64;
-	
-	public static void setMaxBufferSize(int maxBufferSize) {
-		int min = 256;
-		if (maxBufferSize < min) {
-			throw new IllegalArgumentException("maxBufferSize must more than " + min);
+    public FastStringWriter() {
+        buf = new StringBuilder();
+    }
+    
+    public FastStringWriter(int initialSize) {
+        if (initialSize < 0) {
+            throw new IllegalArgumentException("Negative buffer size");
+        }
+        buf = new StringBuilder(initialSize);
+    }
+    
+    public void write(int c) {
+        buf.append((char) c);
+    }
+    
+    public void write(char cbuf[], int off, int len) {
+        if ((off < 0) || (off > cbuf.length) || (len < 0) ||
+            ((off + len) > cbuf.length) || ((off + len) < 0)) {
+            throw new IndexOutOfBoundsException();
+        } else if (len == 0) {
+            return;
+        }
+        buf.append(cbuf, off, len);
+    }
+    
+    public void write(String str) {
+        buf.append(str);
+    }
+    
+    public void write(String str, int off, int len)  {
+        buf.append(str.substring(off, off + len));
+    }
+    
+    public FastStringWriter append(CharSequence csq) {
+        if (csq == null) {
+            write("null");
+        } else {
+            write(csq.toString());
+        }
+        return this;
+    }
+    
+    public FastStringWriter append(CharSequence csq, int start, int end) {
+        CharSequence cs = (csq == null ? "null" : csq);
+        write(cs.subSequence(start, end).toString());
+        return this;
+    }
+    
+    public FastStringWriter append(char c) {
+        write(c);
+        return this;
+    }
+    
+    public String toString() {
+        return buf.toString();
+    }
+    
+    public StringBuilder getBuffer() {
+        return buf;
+    }
+    
+    public void flush() {
+    	
+    }
+    
+    static int MAX_SIZE = 1024 * 64;
+    
+    /**
+     * 由 StringWriter.close() 改造而来，原先该方法中无任何代码 ，改造如下：
+     * 1：去掉 throws IOException
+     * 2：添加 buf 空间释放处理逻辑
+     * 3：添加 buf.setLength(0)，以便于配合 ThreadLocal 回收利用
+     */
+    public void close() {
+    	if (buf.length() > MAX_SIZE) {
+    		buf = new StringBuilder(MAX_SIZE / 2);	// 释放空间占用过大的 buf
+		} else {
+			buf.setLength(0);
 		}
-		MAX_BUFFER_SIZE = maxBufferSize;
-	}
-	
-	@Override
-	public void close() /* throws IOException */ {
-		len = 0;
-		
-		// 释放空间占用过大的缓存
-		if (value.length > MAX_BUFFER_SIZE) {
-			value = new char[Math.max(256, MAX_BUFFER_SIZE / 2)];
-		}
-	}
-	
-	public String toString() {
-		return new String(value, 0, len);
-	}
-	
-	public StringBuilder toStringBuilder() {
-		return new StringBuilder(len + 64).append(value, 0, len);
-	}
-	
-	public FastStringWriter(int capacity) {
-		value = new char[capacity];
-	}
-	
-	public FastStringWriter() {
-		this(128);
-	}
-	
-	/**
-	 * 扩容
-	 */
-	protected void expandCapacity(int newLen) {
-		int newCapacity = Math.max(newLen, value.length * 2);
-		char[] newValue = new char[newCapacity];
-		
-		// 复制 value 中的值到 newValue
-		if (len > 0) {
-			System.arraycopy(value, 0, newValue, 0, len);
-		}
-		value = newValue;
-	}
-	
-	@Override
-	public void write(char buffer[], int offset, int len) throws IOException {
-		int newLen = this.len + len;
-		if (newLen > value.length) {
-			expandCapacity(newLen);
-		}
-		
-		System.arraycopy(buffer, offset, value, this.len, len);
-		this.len = newLen;
-	}
-	
-	@Override
-	public void write(String str, int offset, int len) throws IOException {
-		int newLen = this.len + len;
-		if (newLen > value.length) {
-			expandCapacity(newLen);
-		}
-		
-		str.getChars(offset, (offset + len), value, this.len);
-		this.len = newLen;
-	}
-	
-	@Override
-	public void write(int c) throws IOException {
-		char[] buffer = {(char)c};
-		write(buffer, 0, 1);
-	}
-	
-	@Override
-	public void write(char buffer[]) throws IOException {
-		write(buffer, 0, buffer.length);
-	}
-	
-	@Override
-	public void write(String str) throws IOException {
-		write(str, 0, str.length());
-	}
-	
-	@Override
-	public Writer append(CharSequence csq) throws IOException {
-		if (csq instanceof String) {
-			String str = (String)csq;
-			write(str, 0, str.length());
-			return this;
-		}
-		
-		if (csq == null)
-			write("null");
-		else
-			write(csq.toString());
-		return this;
-	}
-	
-	@Override
-	public Writer append(CharSequence csq, int start, int end) throws IOException {
-		if (csq instanceof String) {
-			String str = (String)csq;
-			write(str, start, (end - start));
-			return this;
-		}
-		
-		CharSequence cs = (csq == null ? "null" : csq);
-		write(cs.subSequence(start, end).toString());
-		return this;
-	}
-	
-	@Override
-	public Writer append(char c) throws IOException {
-		char[] buffer = {c};
-		write(buffer, 0, 1);
-		return this;
-	}
-	
-	@Override
-	public void flush() throws IOException {
-		
-	}
+    }
 }


--- a/src/main/java/com/jfinal/template/io/JdkEncoderFactory.java
+++ b/src/main/java/com/jfinal/template/io/JdkEncoderFactory.java
@ -1,38 +0,0 @@
-/**
- * Copyright (c) 2011-2019, James Zhan 詹波 (jfinal@126.com).
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.jfinal.template.io;
-
-/**
- * JdkEncoderFactory
- * 
- * 支持 utf8mb4，支持 emoji 表情字符，支持各种罕见字符编码
- * 
- * <pre>
- * 配置方法：
- * engine.setToJdkEncoderFactory();
- * </pre>
- */
-public class JdkEncoderFactory extends EncoderFactory {
-	
-	@Override
-	public Encoder getEncoder() {
-		return new JdkEncoder(charset);
-	}
-}
-
-
-
--- a/src/main/java/com/jfinal/template/io/Utf8Encoder.java
+++ b/src/main/java/com/jfinal/template/io/Utf8Encoder.java
@ -16,7 +16,7 @@

 package com.jfinal.template.io;

-// import java.nio.charset.MalformedInputException;
+import java.nio.charset.MalformedInputException;

 /**
 * Utf8Encoder
@ -62,16 +62,12 @@ public class Utf8Encoder extends Encoder {
                        if (Character.isLowSurrogate(d)) {
                            uc = Character.toCodePoint(c, d);
                        } else {
-                            // throw new RuntimeException("encode UTF8 error", new MalformedInputException(1));
-                            bytes[dp++] = (byte) '?';
-                            continue;
+                            throw new RuntimeException("encode UTF8 error", new MalformedInputException(1));
                        }
                    }
                } else {
                    if (Character.isLowSurrogate(c)) {
-                        // throw new RuntimeException("encode UTF8 error", new MalformedInputException(1));
-                        bytes[dp++] = (byte) '?';
-                        continue;
+                        throw new RuntimeException("encode UTF8 error", new MalformedInputException(1));
                    } else {
                        uc = c;
                    }
--- a/src/main/java/com/jfinal/template/stat/Lexer.java
+++ b/src/main/java/com/jfinal/template/stat/Lexer.java
@ -18,7 +18,6 @@ package com.jfinal.template.stat;

 import java.util.ArrayList;
 import java.util.List;
-import java.util.Set;

 /**
 * DKFF(Dynamic Key Feature Forward) Lexer
@ -36,14 +35,10 @@ class Lexer {
 	int forwardRow = 1;
 	TextToken previousTextToken = null;
 	
-	String fileName;
-	Set<String> keepLineBlankDirectives;
-	
 	List<Token> tokens = new ArrayList<Token>();
+	String fileName;
 	
-	public Lexer(StringBuilder content, String fileName, Set<String> keepLineBlankDirectives) {
-		this.keepLineBlankDirectives = keepLineBlankDirectives;
-		
+	public Lexer(StringBuilder content, String fileName) {
 		int len = content.length();
 		buf = new char[len + 1];
 		content.getChars(0, content.length(), buf, 0);
@ -115,7 +110,7 @@ class Lexer {
 					para = scanPara("");
 					idToken = new Token(Symbol.OUTPUT, beginRow);
 					paraToken = new ParaToken(para, beginRow);
-					return addIdParaToken(idToken, paraToken);
+					return addOutputToken(idToken, paraToken);
 				}
 				if (CharTable.isLetter(peek())) {		// # id
 					state = 10;
@ -477,6 +472,31 @@ class Lexer {
 		}
 	}
 	
+	// 输出指令不对前后空白与换行进行任何处理，直接调用 tokens.add(...)
+	boolean addOutputToken(Token idToken, Token paraToken) {
+		tokens.add(idToken);
+		tokens.add(paraToken);
+		previousTextToken = null;
+		return prepareNextScan(0);
+	}
+	
+	// 向前看后续是否跟随的是空白 + 换行或者是空白 + EOF，是则表示当前指令后续没有其它有用内容
+	boolean lookForwardLineFeedAndEof() {
+		int forwardBak = forward;
+		int forwardRowBak = forwardRow;
+		for (char c=peek(); true; c=next()) {
+			if (CharTable.isBlank(c)) {
+				continue ;
+			}
+			if (c == '\n' || c == EOF) {
+				return true;
+			}
+			forward = forwardBak;
+			forwardRow = forwardRowBak;
+			return false;
+		}
+	}
+	
 	/**
 	 * 带参指令处于独立行时删除前后空白字符，并且再删除一个后续的换行符
 	 * 处于独立行是指：向前看无有用内容，在前面情况成立的基础之上
@ -489,66 +509,30 @@ class Lexer {
 		tokens.add(idToken);
 		tokens.add(paraToken);
 		
-		skipFollowingComment();
-		
-		// 保留指令所在行空白字符
-		// #define xxx() 模板函数名、#@xxx() 模板函数名，可以与指令同名，需要排除掉这三种 Symbol
-		if (keepLineBlankDirectives.contains(idToken.value())
-			&& idToken.symbol != Symbol.DEFINE
-			&& idToken.symbol != Symbol.CALL
-			&& idToken.symbol != Symbol.CALL_IF_DEFINED
-			) {
-			
-			prepareNextScan(0);
-		} else {
-			trimLineBlank();
-		}
-		
-		previousTextToken = null;
-		return true;
-	}
-	
-	// #set 这类指令，处在独立一行时，需要删除当前行的前后空白字符以及行尾字符 '\n'
-	void trimLineBlank() {
 		// if (lookForwardLineFeed() && (deletePreviousTextTokenBlankTails() || lexemeBegin == 0)) {
 		if (lookForwardLineFeedAndEof() && deletePreviousTextTokenBlankTails()) {
 			prepareNextScan(peek() != EOF ? 1 : 0);
 		} else {
 			prepareNextScan(0);
 		}
-	}
-	
-	// 无参指令无条件调用 trimLineBlank()
-	boolean addNoParaToken(Token noParaToken) {
-		tokens.add(noParaToken);
-		
-		skipFollowingComment();
-		
-		if (CharTable.isBlank(peek())) {
-			next();	// 无参指令之后紧随的一个空白字符仅为分隔符，不参与后续扫描
-		}
-		
-		trimLineBlank();
-		
 		previousTextToken = null;
 		return true;
 	}
 	
-	// 向前看后续是否跟随的是空白 + 换行或者是空白 + EOF，是则表示当前指令后续没有其它有用内容
-	boolean lookForwardLineFeedAndEof() {
-		int fp = forward;
-		for (char c=buf[fp]; true; c=buf[++fp]) {
-			if (CharTable.isBlank(c)) {
-				continue ;
-			}
-			
-			if (c == '\n' || c == EOF) {
-				forward = fp;
-				return true;
-			}
-			
-			return false;
+	// 处理前后空白的逻辑与 addIdParaToken() 基本一样，仅仅多了一个对于紧随空白的 next() 操作
+	boolean addNoParaToken(Token noParaToken) {
+		tokens.add(noParaToken);
+		if (CharTable.isBlank(peek())) {
+			next();	// 无参指令之后紧随的一个空白字符仅为分隔符，不参与后续扫描
 		}
+		
+		if (lookForwardLineFeedAndEof() && deletePreviousTextTokenBlankTails()) {
+			prepareNextScan(peek() != EOF ? 1 : 0);
+		} else {
+			prepareNextScan(0);
+		}
+		previousTextToken = null;
+		return true;
 	}
 	
 	/**
@ -559,54 +543,6 @@ class Lexer {
 		// return previousTextToken != null ? previousTextToken.deleteBlankTails() : false;
 		return previousTextToken == null || previousTextToken.deleteBlankTails();
 	}
-	
-	/**
-	 * 跳过指令后方跟随的注释，以便正确处理各类换行逻辑
-	 */
-	void skipFollowingComment() {
-		int fp = forward;
-		for (char c=buf[fp]; true; c=buf[++fp]) {
-			if (CharTable.isBlank(c)) {
-				continue ;
-			}
-			
-			// 勿使用 next()
-			if (c == '#') {
-				if (buf[fp + 1] == '#' && buf[fp + 2] == '#') {
-					forward = fp;
-					skipFollowingSingleLineComment();
-				} else if (buf[fp + 1] == '-' && buf[fp + 2] == '-') {
-					forward = fp;
-					skipFollowingMultiLineComment();
-				}
-			}
-			
-			return ;
-		}
-	}
-	
-	void skipFollowingSingleLineComment() {
-		forward = forward + 3;
-		for (char c=peek(); true; c=next()) {
-			if (c == '\n' || c == EOF) {
-				break ;
-			}
-		}
-	}
-	
-	void skipFollowingMultiLineComment() {
-		forward = forward + 3;
-		for (char c=peek(); true; c=next()) {
-			if (c == '-' && buf[forward + 1] == '-' && buf[forward + 2] == '#') {
-				forward = forward + 3;
-				break ;
-			}
-			
-			if (c == EOF) {
-				throw new ParseException("The multiline comment start block \"#--\" can not match the end block: \"--#\"", new Location(fileName, beginRow));
-			}
-		}
-	}
 }


--- a/src/main/java/com/jfinal/template/stat/Parser.java
+++ b/src/main/java/com/jfinal/template/stat/Parser.java
@ -71,7 +71,7 @@ public class Parser {
 	}
 	
 	public StatList parse() {
-		tokenList = new Lexer(content, fileName, env.getEngineConfig().getKeepLineBlankDirectives()).scan();
+		tokenList = new Lexer(content, fileName).scan();
 		tokenList.add(EOF);
 		StatList statList = statList();
 		if (peek() != EOF) {
@ -207,11 +207,11 @@ public class Parser {
 				matchEnd(name);
 			}
 			return ret;
-		case EOF:
 		case PARA:
 		case ELSEIF:
 		case ELSE:
 		case END:
+		case EOF:
 		case CASE:
 		case DEFAULT:
 			return null;
--- a/src/main/java/com/jfinal/template/stat/Scope.java
+++ b/src/main/java/com/jfinal/template/stat/Scope.java
@ -78,7 +78,6 @@ public class Scope {
 				if (cur.data == null) {			// 支持顶层 data 为 null 值
 					cur.data = new HashMap();
 				}
-				
 				cur.data.put(key, value);
 				return ;
 			}
@ -90,8 +89,7 @@ public class Scope {
 	 * 自内向外在作用域栈中查找变量，返回最先找到的变量
 	 */
 	public Object get(Object key) {
-		Scope cur = this;
-		do {
+		for (Scope cur=this; cur!=null; cur=cur.parent) {
 //			if (cur.data != null && cur.data.containsKey(key)) {
 //				return cur.data.get(key);
 //			}
@ -106,10 +104,7 @@ public class Scope {
 					return null;
 				}
 			}
-			
-			cur = cur.parent;
-		} while (cur != null);
-		
+		}
 		// return null;
 		return sharedObjectMap != null ? sharedObjectMap.get(key) : null;
 	}
@ -160,10 +155,6 @@ public class Scope {
 	public void setGlobal(Object key, Object value) {
 		for (Scope cur=this; true; cur=cur.parent) {
 			if (cur.parent == null) {
-				if (cur.data == null) {
-					cur.data = new HashMap();
-				}
-				
 				cur.data.put(key, value);
 				return ;
 			}
@ -177,7 +168,7 @@ public class Scope {
 	public Object getGlobal(Object key) {
 		for (Scope cur=this; true; cur=cur.parent) {
 			if (cur.parent == null) {
-				return cur.data != null ? cur.data.get(key) : null;
+				return cur.data.get(key);
 			}
 		}
 	}
@ -189,10 +180,7 @@ public class Scope {
 	public void removeGlobal(Object key) {
 		for (Scope cur=this; true; cur=cur.parent) {
 			if (cur.parent == null) {
-				if (cur.data != null) {
-					cur.data.remove(key);
-				}
-				
+				cur.data.remove(key);
 				return ;
 			}
 		}
--- a/src/main/java/com/jfinal/template/stat/TextToken.java
+++ b/src/main/java/com/jfinal/template/stat/TextToken.java
@ -63,9 +63,6 @@ class TextToken extends Token {
 		}
 		
 		// 两个指令之间全是空白字符， 设置其长度为 0，为 Parser 过滤内容为空的 Text 节点做准备
-		// 典型测试用例：两个带有前导空格，并且都在独立一行的 #set(...) 指令，前一个 #set 指令
-		//             虽然是 '\n' 结尾，但已在 Lexer 中被 prepareNextScan(...) 删掉
-		// 另一典型用例：#date() #date()，可通过配置 keepLineBlank 为 true 保留指令间的空白字符
 		text.setLength(0);
 		return true;		// 当两指令之间全为空白字符时，告知调用方需要吃掉行尾的 '\n'
 	}
--- a/src/main/java/com/jfinal/template/stat/ast/Output.java
+++ b/src/main/java/com/jfinal/template/stat/ast/Output.java
@ -66,6 +66,8 @@ public class Output extends Stat {
 				} else {
 					writer.write(value.toString());
 				}
+			} else if (value instanceof Boolean) {
+				writer.write((Boolean)value);
 			} else if (value != null) {
 				writer.write(value.toString());
 			}
--- a/src/main/java/com/jfinal/template/stat/ast/Set.java
+++ b/src/main/java/com/jfinal/template/stat/ast/Set.java
@ -20,7 +20,6 @@ import com.jfinal.template.Env;
 import com.jfinal.template.expr.ast.Assign;
 import com.jfinal.template.expr.ast.Expr;
 import com.jfinal.template.expr.ast.ExprList;
-import com.jfinal.template.expr.ast.IncDec;
 import com.jfinal.template.io.Writer;
 import com.jfinal.template.stat.Location;
 import com.jfinal.template.stat.ParseException;
@ -45,11 +44,10 @@ public class Set extends Stat {
 		}
 		
 		for (Expr expr : exprList.getExprArray()) {
-			if ( !(expr instanceof Assign || expr instanceof IncDec) ) {
+			if ( !(expr instanceof Assign) ) {
 				throw new ParseException("#set directive only supports assignment expressions", location);
 			}
 		}
-		
 		this.expr = exprList.getActualExpr();
 	}
 	
--- a/src/main/java/com/jfinal/template/stat/ast/SetGlobal.java
+++ b/src/main/java/com/jfinal/template/stat/ast/SetGlobal.java
@ -20,7 +20,6 @@ import com.jfinal.template.Env;
 import com.jfinal.template.expr.ast.Assign;
 import com.jfinal.template.expr.ast.Expr;
 import com.jfinal.template.expr.ast.ExprList;
-import com.jfinal.template.expr.ast.IncDec;
 import com.jfinal.template.io.Writer;
 import com.jfinal.template.stat.Ctrl;
 import com.jfinal.template.stat.Location;
@ -42,11 +41,10 @@ public class SetGlobal  extends Stat {
 		}
 		
 		for (Expr expr : exprList.getExprArray()) {
-			if ( !(expr instanceof Assign || expr instanceof IncDec) ) {
+			if ( !(expr instanceof Assign) ) {
 				throw new ParseException("#setGlobal directive only supports assignment expressions", location);
 			}
 		}
-		
 		this.expr = exprList.getActualExpr();
 	}
 	
--- a/src/main/java/com/jfinal/template/stat/ast/SetLocal.java
+++ b/src/main/java/com/jfinal/template/stat/ast/SetLocal.java
@ -20,7 +20,6 @@ import com.jfinal.template.Env;
 import com.jfinal.template.expr.ast.Assign;
 import com.jfinal.template.expr.ast.Expr;
 import com.jfinal.template.expr.ast.ExprList;
-import com.jfinal.template.expr.ast.IncDec;
 import com.jfinal.template.io.Writer;
 import com.jfinal.template.stat.Ctrl;
 import com.jfinal.template.stat.Location;
@ -43,11 +42,10 @@ public class SetLocal  extends Stat {
 		}
 		
 		for (Expr expr : exprList.getExprArray()) {
-			if ( !(expr instanceof Assign || expr instanceof IncDec) ) {
+			if ( !(expr instanceof Assign) ) {
 				throw new ParseException("#setLocal directive only supports assignment expressions", location);
 			}
 		}
-		
 		this.expr = exprList.getActualExpr();
 	}
 	
--- a/src/main/resources/tpl.sql
+++ b/src/main/resources/tpl.sql
@ -1,8 +0,0 @@
-#tpl("findGirl")
-  select * from girl where age > ? and age < ? and weight < 50
-#end
-
-#tpl("findGirl2")
-  select * from girl where age > ? and age < ? and weight < 50
-#end
-
--- a/src/test/java/com/jfinal/template/TplKitTest.java
+++ b/src/test/java/com/jfinal/template/TplKitTest.java
@ -1,28 +0,0 @@
-package com.jfinal.template;
-
-import com.jfinal.kit.Kv;
-import com.jfinal.kit.TplKit;
-import org.junit.Test;
-
-import java.io.File;
-
-public class TplKitTest {
-
-    @Test
-    public void run() {
-        TplKit tplKit = TplKit.use("", true);
-
-        tplKit.addTplTemplate(new File("E:\\wk\\HaoGamePlatfProject\\conf"), x -> x.getName().endsWith(".tpl"));
-
-
-        tplKit.parseTplTemplate();
-
-        TplKit tplKit2 = TplKit.use("", true);
-
-        String findGirl = tplKit2.getTpl("abx", Kv.by("a", 12321));
-
-        System.out.println(findGirl);
-
-
-    }
-}