spring AOP理解——spring中的CGLIB实现AOP功能

使用spring中的CGLIB实现AOP功能--代码

package com.mooing.service;

import java.lang.reflect.Method;

import net.sf.cglib.proxy.Enhancer;

import net.sf.cglib.proxy.MethodInterceptor;

import net.sf.cglib.proxy.MethodProxy;

public class CglibProxyFactory implements MethodInterceptor {

private Object targetObj;

/**

* 为目标对象创建代理类

*

* 传入要代理类，创建此类的代理实例

*

* @param targetObj

* 目标对象

* @return 返回目标对象的代理类

*/

public Object createProxyInstances(Object targetObj) {

this.targetObj = targetObj;

Enhancer en = new Enhancer();

en.setSuperclass(this.targetObj.getClass());

en.setCallback(this);

return en.create();

}

@Override

public Object intercept(Object proxy, Method method, Object[] arg2, MethodProxy arg3)throws Throwable {

MyServiceImpl myservice = (MyServiceImpl) targetObj;

Object result = null;

if (myservice.getTemp() != null) {

result = method.invoke(targetObj, arg2);

}

return result;

}

}

测试

@Test

public void testCglibProxy() {

CglibProxyFactory proxy = new CglibProxyFactory();

MyServiceImpl ms = (MyServiceImpl) proxy.createProxyInstances(new MyServiceImpl("xxx"));

ms.save();

}