diff --git a/README.md b/README.md
index 4e48c8a..2007b2b 100644
--- a/README.md
+++ b/README.md
@@ -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>4.5</version>
+    <version>4.6</version>
 </dependency>
 ```
 
diff --git a/pom.xml b/pom.xml
index 94248df..0deddce 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 	
 	<groupId>com.jfinal</groupId>
 	<artifactId>enjoy</artifactId>
-	<version>4.5</version>
+	<version>4.6</version>
 	<packaging>jar</packaging>
 	
 	
diff --git a/src/main/java/com/jfinal/template/Template.java b/src/main/java/com/jfinal/template/Template.java
index 7d01b96..d042e42 100644
--- a/src/main/java/com/jfinal/template/Template.java
+++ b/src/main/java/com/jfinal/template/Template.java
@@ -102,6 +102,14 @@ 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
 	 */
diff --git a/src/main/java/com/jfinal/template/expr/ast/MethodKit.java b/src/main/java/com/jfinal/template/expr/ast/MethodKit.java
index b1cdce6..872f264 100644
--- a/src/main/java/com/jfinal/template/expr/ast/MethodKit.java
+++ b/src/main/java/com/jfinal/template/expr/ast/MethodKit.java
@@ -49,7 +49,9 @@ 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.Method.class,
+			java.lang.reflect.Proxy.class
 		};
 		for (Class<?> c : cs) {
 			forbiddenClasses.add(c);
@@ -62,8 +64,8 @@ public class MethodKit {
 			"getClass", "getDeclaringClass", "forName", "newInstance", "getClassLoader",
 			"invoke", // "getMethod", "getMethods", // "getField", "getFields",
 			"notify", "notifyAll", "wait",
-			"load", "exit", "loadLibrary", "halt",
-			"stop", "suspend", "resume", "setDaemon", "setPriority",
+			"exit", "loadLibrary", "halt", // "load",
+			"stop", "suspend", "resume" // "setDaemon", "setPriority"
 		};
 		for (String m : ms) {
 			forbiddenMethods.add(m);
diff --git a/src/main/java/com/jfinal/template/ext/directive/NumberDirective.java b/src/main/java/com/jfinal/template/ext/directive/NumberDirective.java
index 1df7cdc..c76fa99 100644
--- a/src/main/java/com/jfinal/template/ext/directive/NumberDirective.java
+++ b/src/main/java/com/jfinal/template/ext/directive/NumberDirective.java
@@ -53,10 +53,9 @@ public class NumberDirective extends Directive {
 	
 	private Expr valueExpr;
 	private Expr patternExpr;
-	private int paraNum;
 	
 	public void setExprList(ExprList exprList) {
-		this.paraNum = exprList.length();
+		int paraNum = exprList.length();
 		if (paraNum == 0) {
 			throw new ParseException("The parameter of #number directive can not be blank", location);
 		}
@@ -64,13 +63,8 @@ public class NumberDirective extends Directive {
 			throw new ParseException("Wrong number parameter of #number directive, two parameters allowed at most", location);
 		}
 		
-		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);
-		}
+		valueExpr = exprList.getExpr(0);
+		patternExpr = (paraNum == 1 ? null : exprList.getExpr(1));
 	}
 	
 	public void exec(Env env, Scope scope, Writer writer) {
@@ -79,9 +73,9 @@ public class NumberDirective extends Directive {
 			return ;
 		}
 		
-		if (paraNum == 1) {
+		if (patternExpr == null) {
 			outputWithoutPattern(writer, value);
-		} else if (paraNum == 2) {
+		} else {
 			outputWithPattern(scope, writer, value);
 		}
 	}