CGLIB动态代理

UserDao ：实体类

package com.student.cglib;

public class UserDao {
	public void addUser() {
		System.out.println("添加用户！！！！！");
	}
	public void deleteUser() {
		System.out.println("删除用户！！！！！");
	}

}

MyAspect ：切面类

package com.student.aspect;
//作为切面类
public class MyAspect {
	public void check_Permissions() {
		System.out.println("模拟检查权限！！！");
	}
	public void log() {
		System.out.println("模拟记录日志！！！");
	}

}

CglibProxy :动态代理类

package com.student.cglib;

import java.lang.reflect.Method;

import org.springframework.cglib.proxy.Enhancer;
import org.springframework.cglib.proxy.MethodInterceptor;
import org.springframework.cglib.proxy.MethodProxy;

import com.student.aspect.MyAspect;

public class CglibProxy implements MethodInterceptor {
	
	public Object createProxy(Object target) {
		Enhancer enhancer = new Enhancer();
		enhancer.setSuperclass(target.getClass());
		enhancer.setCallback(this);
		return enhancer.create();
	}

	@Override
	public Object intercept(Object proxy, Method metod, Object[] args, MethodProxy methodProxy) throws Throwable {
		MyAspect myAspect = new  MyAspect();
		myAspect.check_Permissions();
		Object obj = methodProxy.invokeSuper(proxy, args);
		myAspect.log();
		return obj;
	}

}

CglibTest:测试类

package com.student.cglib;

public class CglibTest {

	public static void main(String[] args) {
		CglibProxy cglibProxy = new CglibProxy();
		UserDao userDao = new UserDao();
		UserDao userDao1 = (UserDao) cglibProxy.createProxy(userDao);
		userDao1.addUser();
		userDao1.deleteUser();
	}

}

输出结果：

模拟检查权限！！！
添加用户！！！！！
模拟记录日志！！！
模拟检查权限！！！
删除用户！！！！！
模拟记录日志！！！