Cglib Dynamic Agent

Source: Internet
Author: User

The dynamic agent of JDK is slow, can use the agent of Cglib, the speed is relatively fast:

Package cn.demo02;

import Java.lang.reflect.Method;


import org.springframework.beans.BeansException;

import org.springframework.beans.factory.config.BeanPostProcessor;

import org.springframework.cglib.proxy.Enhancer;

import org.springframework.cglib.proxy.MethodInterceptor;

import org.springframework.cglib.proxy.MethodProxy;

Public class Postbean implements beanpostprocessor {


Public Object Postprocessbeforeinitialization (Object bean, String beanname) throws beansexception {

return Bean;



Public Object Postprocessafterinitialization (Object bean, String beanname) throws beansexception {

if (Bean instanceof Child) {

CG(Code generation)Lib dynamic agent for Beans

Object Proxybean = enhancer. Create (Bean.getclass (), new methodinterceptor () {


Public Object Intercept (Object Proxybean, method, object[] args, Methodproxy methodproxy)

throws Throwable {

if (Method.getname (). Equals ("Say")) {

System. err. println ("Say is beging ...");

Object obj = Methodproxy.invokesuper (Proxybean, args);

System. err. println ("Say Is over ...");

return obj;

} Else {

Direct release

return method.invoke (bean, args); }



return Proxybean;


return Bean;



Cglib Dynamic Agent

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