cglib的动态代理

package com.jy.util;


import net.sf.cglib.proxy.Enhancer;
import net.sf.cglib.proxy.MethodInterceptor;
import net.sf.cglib.proxy.MethodProxy;
import org.apache.poi.ss.formula.functions.T;

import java.lang.reflect.Method;

public class MyCglibProxyDemo  implements MethodInterceptor{

    /*
    <dependency>
            <groupId>cglib</groupId>
            <artifactId>cglib</artifactId>
            <version>3.2.5</version>
        </dependency>
     */
    private T target;
    public T getInstance(T target){
        this.target = target;
        Enhancer enhancer = new Enhancer();
　　　　　//指定被代理的作为父类
        enhancer.setSuperclass(target.getClass());
        enhancer.setCallback(this);
        return (T)enhancer.create();
    }
    @Override
    public Object intercept(Object obj, Method method, Object[] objects, MethodProxy methodProxy) throws Throwable {
        //前置处理
        Object invoke = methodProxy.invoke(obj, objects);
        //后置处理
        return invoke;
    }
}