JDK和Cglib动态代理小demo

一：JDK动态代理

package com.zkn.newlearn.proxyhandler;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;

import org.omg.CORBA.portable.InvokeHandler;

/**
 * 
 * @author zkn
 * 此代理类 代理实现接口的类
 *
 */

public class JdkProxyHandler implements InvocationHandler {

private Object targetObject;

public Object createObject(Object obj){
this.targetObject = obj;
return Proxy.newProxyInstance(targetObject.getClass().getClassLoader(), 
targetObject.getClass().getInterfaces(), this);
}

public Object invoke(Object proxy, Method method, Object[] args)
throws Throwable {

return method.invoke(targetObject, args);
}

}

 

2：CGLIB动态代理

package com.zkn.newlearn.proxyhandler;

import java.lang.reflect.Method;

import net.sf.cglib.proxy.Enhancer;
import net.sf.cglib.proxy.MethodInterceptor;
import net.sf.cglib.proxy.MethodProxy;

/**
 * 
 * @author zkn
 *代理类不能为final修饰的类
 *此代理类 代理的是没有实现接口的类
 */

public class CglibProxyHandler implements MethodInterceptor{

/**
 * 代理对象
 */
private Object targetObj;

public Object createObject(Object obj){
this.targetObj = obj;
Enhancer eh = new Enhancer();
eh.setSuperclass(this.targetObj.getClass());
eh.setCallback(this);
return eh.create();
}

public Object intercept(Object obj, Method arg1, Object[] arg2,
MethodProxy proxy) throws Throwable {

Object object = proxy.invoke(this.targetObj, arg2);//这里如果换成obj 会陷入死循环中
return object;
}

}