JDK和cglib動態代理代碼：

package com.zhangxueliang.demo.proxy;import java.lang.reflect.InvocationHandler; import java.lang.reflect.Method; import java.lang.reflect.Proxy;public class JDKProxyFactory implements InvocationHandler{private Object target;public JDKProxyFactory(Object target){this.target=target;}public Object createProxy(){ClassLoader classLoader = target.getClass().getClassLoader();Class<?>[] interfaces = target.getClass().getInterfaces();return Proxy.newProxyInstance(classLoader, interfaces, this);}public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {System.out.println("增強--日志操作。。。。。。。。。。。");return method.invoke(target, args);}} package com.zhangxueliang.demo.proxy;import java.lang.reflect.Method;import org.springframework.cglib.proxy.Enhancer; import org.springframework.cglib.proxy.MethodInterceptor; import org.springframework.cglib.proxy.MethodProxy;public class CglibProxyFactory implements MethodInterceptor {private Object target;public CglibProxyFactory(Object target){this.target=target;}public Object createProxy(){Enhancer enhancer = new Enhancer();enhancer.setSuperclass(target.getClass());enhancer.setCallback(this);return enhancer.create();}public Object intercept(Object proxy, Method method, Object[] args, MethodProxy methodProxy) throws Throwable {System.out.println("cglib日志操作。。。。。。。。");return method.invoke(target,args);} } package com.zhangxueliang.demo.proxy;public class Test {public static void main(String[] args) { // testJdkProxy();UserServiceImpl u = new UserServiceImpl();CglibProxyFactory c = new CglibProxyFactory(u);UserServiceImpl us = (UserServiceImpl) c.createProxy();us.login("0000", "123456");}private static void testJdkProxy() {UserServiceImpl u = new UserServiceImpl();JDKProxyFactory f = new JDKProxyFactory(u);IUserService us = (IUserService) f.createProxy();us.login("1111", "2222");} }

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