JDK Dynamic Proxy_JDK动态代理

更详细的在http://my.oschina.net/xinxingegeya/blog/297410

Dynamic Proxy :

In this , proxies are created dynamically through reflection（反射）. This functionality is added from JDK 1.3 . Dynamic proxy form the basic building block of Spring AOP.

一个简单的示例：

下面贴出代码来，也没什么好说的

Basicfunc.java

package com.lyx.other;public interface Basicfunc {public void method1();
}

Example1.java

package com.lyx.other;public class Example1 implements Basicfunc {public void method1() {System.out.println("executing method 1");}
}

MyInvocationHandler.java

package com.lyx.other;import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;public class MyInvocationHandler implements InvocationHandler {private Object target;public MyInvocationHandler(Object target) {this.target = target;}public Object getTarget() {return this.target;}public void setTarget(Object target) {this.target = target;}public Object invoke(Object proxy, Method method, Object[] params)throws Throwable {long a = System.currentTimeMillis();Object result = method.invoke(this.target, params);System.out.println("total time taken  "+ (System.currentTimeMillis() - a));return result;}}

MainClass.java

package com.lyx.other;import java.lang.reflect.Proxy;public class MainClass {public static void main(String[] args) {Example1 ex = new Example1();Basicfunc proxied = (Basicfunc) Proxy.newProxyInstance(MainClass.class.getClassLoader(),ex.getClass().getInterfaces(), new MyInvocationHandler(ex));proxied.method1();}
}

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