cglib动态代理

        <dependency>
            <groupId>cglib</groupId>
            <artifactId>cglib</artifactId>
            <version>2.2.2</version>
        </dependency>

public class Dog {

    final public void run(String name) {
        System.out.println("狗"+name+"----run");
    }

    public void eat() {
        System.out.println("狗----eat");
    }
}

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


import java.lang.reflect.Method;

public class MyMethodInterceptor implements MethodInterceptor {
    @Override
    public Object intercept(Object o, Method method, Object[] objects, MethodProxy methodProxy) throws Throwable {
        System.out.println("这里是对目标类进行增强！！！");
        Object object = methodProxy.invokeSuper(o,objects);
        return object;
    }
}

public class MainTest {

    public static void main(String[] args) {

        //创建Enhancer对象，类似于JDK动态代理的Proxy类，下一步就是设置几个参数
        Enhancer enhancer = new Enhancer();
        //设置目标类的字节码文件
        enhancer.setSuperclass(Dog.class);
        //设置回调函数
        enhancer.setCallback(new MyMethodInterceptor());

        //这里的creat方法就是正式创建代理类
        Dog proxyDog = (Dog)enhancer.create();
        //调用代理类的eat方法
        proxyDog.eat();
    }
}