enjoy 3.4

src/main/java/com/jfinal/template/Engine.java

@@ -162,6 +162,13 @@ public class Engine {
 	
 	/**
 	 * Get template by string content and do not cache the template
+	 */
+	public Template getTemplateByString(String content) {
+		return getTemplateByString(content, false);
+	}
+	
+	/**
+	 * Get template by string content
 	 * 
 	 * 重要：StringSource 中的 key = HashKit.md5(content)，也即 key
 	 *     与 content 有紧密的对应关系，当 content 发生变化时 key 值也相应变化
@@ -170,13 +177,7 @@ public class Engine {
 	 *     
 	 *     当 getTemplateByString(String, boolean) 中的 String 参数的
 	 *     数量可控并且确定时，才可对其使用缓存 
-	 */
-	public Template getTemplateByString(String content) {
-		return getTemplateByString(content, false);
-	}
-	
-	/**
-	 * Get template by string content
+	 *     
 	 * @param content 模板内容
 	 * @param cache true 则缓存 Template，否则不缓存
 	 */

src/main/java/com/jfinal/template/Template.java

@@ -16,6 +16,10 @@
 
 package com.jfinal.template;
 
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
 import java.io.OutputStream;
 import java.io.Writer;
 import java.util.Map;
@@ -108,6 +112,32 @@ public class Template {
 		return fsw.getBuffer();
 	}
 	
+	/**
+	 * 渲染到 File 中去
+	 * 适用于代码生成器类似应用场景
+	 */
+	public void render(Map<?, ?> data, File file) {
+		FileOutputStream fos = null;
+		try {
+			fos = new FileOutputStream(file);
+			render(data, fos);
+		} catch (FileNotFoundException e) {
+			throw new RuntimeException(e);
+		} finally {
+			if (fos != null) {
+				try {fos.close();} catch (IOException e) {e.printStackTrace(System.err);}
+			}
+		}
+	}
+	
+	/**
+	 * 渲染到 String fileName 参数所指定的文件中去
+	 * 适用于代码生成器类似应用场景
+	 */
+	public void render(Map<?, ?> data, String fileName) {
+		render(data, new File(fileName));
+	}
+	
 	public boolean isModified() {
 		return env.isSourceListModified();
 	}

src/main/java/com/jfinal/template/expr/ast/Id.java

@@ -23,7 +23,7 @@ import com.jfinal.template.stat.Scope;
  */
 public class Id extends Expr {
 	
-	private String id;
+	private final String id;
 	
 	public Id(String id) {
 		this.id = id;

src/main/java/com/jfinal/template/expr/ast/Map.java

@@ -24,8 +24,10 @@ import com.jfinal.template.stat.Scope;
  * Map
  * 
  * 1：定义 map 常量
- *   {k1:123, k2:"abc", 'k3':true, "k4":[1,2,3], k5:1+2}
- *   如上所示，map定义的 key 可以为 String 或者 id 标识符，而右侧的 value 可以是任意的常量与表达式
+ *   {k1:123, k2:"abc", 'k3':true, "k4":[1,2,3], k5:1+2, 1:12, true:"Y", null:"abc"}
+ *   如上所示，map定义的 key 可以为 id 标识符或者 String、Integer、Long、Boolean、null
+ *   等常量值 (详见 ExprParser.buildMapEntry(...) 方法)，
+ *   右侧的 value 可以是任意的常量与表达式
  * 
  * 2：取值
  *   先将 Map 常量赋值给某个变量： #set(map = {...})
@@ -35,6 +37,10 @@ import com.jfinal.template.stat.Scope;
  *   map.get("k1")
  *   map.k1
  * 
+ * 3：不通过中间变量取值
+ *   {1:'自买', 2:'跟买'}.get(1)
+ *   {1:'自买', 2:'跟买'}[2]
+ *   
  *   如上所示，当以下标方式取值时，下标参数可以是 string 与  expr，而 expr 求值以后的值必须也为 string类型
  *   当用 map.k1 这类 field 字段取值形式时，则是使用 id 标识符，而不是 string 形参数
  *   

src/main/java/com/jfinal/template/ext/directive/NowDirective.java

@@ -32,7 +32,7 @@ import com.jfinal.template.stat.Scope;
  */
 public class NowDirective extends Directive {
 	
-	public void setExrpList(ExprList exprList) {
+	public void setExprList(ExprList exprList) {
 		if (exprList.length() > 1) {
 			throw new ParseException("#now directive support one parameter only", location);	
 		}

src/main/java/com/jfinal/template/ext/directive/RandomDirective.java

@@ -16,22 +16,29 @@
 
 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.Scope;
 
 /**
- * 输出随机数
+ * 输出 int 型随机数
  */
 public class RandomDirective extends Directive {
 	
 	private java.util.Random random = new java.util.Random();
 	
 	public void exec(Env env, Scope scope, Writer writer) {
-		write(writer, String.valueOf(random.nextInt()));
+		try {
+			writer.write(random.nextInt());
+		} catch (IOException e) {
+			throw new TemplateException(e.getMessage(), location, e);
+		}
 	}
 }
 
 
 
+

src/main/java/com/jfinal/template/ext/extensionmethod/ByteExt.java

@@ -43,6 +43,14 @@ public class ByteExt {
 	public Double toDouble(Byte self) {
 		return self.doubleValue();
 	}
+	
+	public Short toShort(Byte self) {
+		return self.shortValue();
+	}
+	
+	public Byte toByte(Byte self) {
+		return self;
+	}
 }
 
 

src/main/java/com/jfinal/template/ext/extensionmethod/DoubleExt.java

@@ -43,6 +43,14 @@ public class DoubleExt {
 	public Double toDouble(Double self) {
 		return self;
 	}
+	
+	public Short toShort(Double self) {
+		return self.shortValue();
+	}
+	
+	public Byte toByte(Double self) {
+		return self.byteValue();
+	}
 }
 
 

src/main/java/com/jfinal/template/ext/extensionmethod/FloatExt.java

@@ -43,6 +43,14 @@ public class FloatExt {
 	public Double toDouble(Float self) {
 		return self.doubleValue();
 	}
+	
+	public Short toShort(Float self) {
+		return self.shortValue();
+	}
+	
+	public Byte toByte(Float self) {
+		return self.byteValue();
+	}
 }
 
 

src/main/java/com/jfinal/template/ext/extensionmethod/IntegerExt.java

@@ -63,6 +63,14 @@ public class IntegerExt {
 	public Double toDouble(Integer self) {
 		return self.doubleValue();
 	}
+	
+	public Short toShort(Integer self) {
+		return self.shortValue();
+	}
+	
+	public Byte toByte(Integer self) {
+		return self.byteValue();
+	}
 }
 
 

src/main/java/com/jfinal/template/ext/extensionmethod/LongExt.java

@@ -43,6 +43,14 @@ public class LongExt {
 	public Double toDouble(Long self) {
 		return self.doubleValue();
 	}
+	
+	public Short toShort(Long self) {
+		return self.shortValue();
+	}
+	
+	public Byte toByte(Long self) {
+		return self.byteValue();
+	}
 }
 
 

src/main/java/com/jfinal/template/ext/extensionmethod/ShortExt.java

@@ -43,6 +43,14 @@ public class ShortExt {
 	public Double toDouble(Short self) {
 		return self.doubleValue();
 	}
+	
+	public Short toShort(Short self) {
+		return self;
+	}
+	
+	public Byte toByte(Short self) {
+		return self.byteValue();
+	}
 }
 
 

src/main/java/com/jfinal/template/ext/extensionmethod/StringExt.java

@@ -79,6 +79,14 @@ public class StringExt {
 	public Double toDouble(String self) {
 		return StrKit.isBlank(self) ? null : Double.parseDouble(self);
 	}
+	
+	public Short toShort(String self) {
+		return StrKit.isBlank(self) ? null : Short.parseShort(self);
+	}
+	
+	public Byte toByte(String self) {
+		return StrKit.isBlank(self) ? null : Byte.parseByte(self);
+	}
 }
 
 

src/main/java/com/jfinal/template/ext/spring/JFinalView.java

@@ -59,10 +59,9 @@ public class JFinalView extends AbstractTemplateView {
 		OutputStream os = response.getOutputStream();
 		JFinalViewResolver.engine.getTemplate(getUrl()).render(model, os);
 	}
-}
 
-@SuppressWarnings({"unchecked", "rawtypes", "deprecation"})
-class InnerSession extends HashMap<Object, Object> implements HttpSession {
+	@SuppressWarnings({"unchecked", "rawtypes", "deprecation"})
+	public static class InnerSession extends HashMap<Object, Object> implements HttpSession {
 		
 		private static final long serialVersionUID = -8679493647540628009L;
 		private HttpSession session;
@@ -155,6 +154,11 @@ class InnerSession extends HashMap<Object, Object> implements HttpSession {
 		public void setMaxInactiveInterval(int maxInactiveInterval) {
 			session.setMaxInactiveInterval(maxInactiveInterval);
 		}
+		
+		public String toString() {
+			return session != null ? session.toString() : "null";
+		}
+	}
 }
 
 
@@ -162,4 +166,3 @@ class InnerSession extends HashMap<Object, Object> implements HttpSession {
 
 
 
-

src/main/java/com/jfinal/template/source/FileSource.java

@@ -77,6 +77,9 @@ public class FileSource implements ISource {
 	}
 	
 	private String buildFinalFileName(String baseTemplatePath, String fileName) {
+		if (baseTemplatePath == null) {
+			return fileName;
+		}
 		char firstChar = fileName.charAt(0);
 		String finalFileName;
 		if (firstChar == '/' || firstChar == '\\') {

src/main/java/com/jfinal/template/stat/ast/Text.java

@@ -25,7 +25,7 @@ import com.jfinal.template.io.Writer;
 import com.jfinal.template.stat.Scope;
 
 /**
- * Text 输出纯文本块以及使用 "#[[" 与 "]]#" 指定的非解析块 
+ * Text 输出纯文本块以及使用 "#[[" 与 "]]#" 定义的原样输出块 
  */
 public class Text extends Stat implements IWritable {