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/** * @Author lyr * @create 2020/3/29 12:04 */public interface Axe {
       void chop();}

/** * @Author lyr * @create 2020/3/29 12:04 */public class StealAxe implements Axe {
       @Override    public void chop() {
           System.out.println("用钢斧砍柴。");    }}

import java.lang.reflect.InvocationHandler;import java.lang.reflect.Method;import java.lang.reflect.Proxy;/** * @Author lyr * @create 2020/3/29 12:05 */public class AxeProxyJdk implements InvocationHandler {
       /**     * 委托对象     */    private Object delegate;    public Object getInstance(Object delegate) {
           this.delegate = delegate;        return Proxy.newProxyInstance(                delegate.getClass().getClassLoader(),                delegate.getClass().getInterfaces(),                this        );    }    @Override    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
           System.out.println("我检查一下？？");        Object result = method.invoke(delegate, args);        System.out.println("结束了e");        return result;    }}

import money.dao.impl.DaoImpl;import money.service.impl.ServiceImpl;import org.apache.commons.dbutils.QueryRunner;import org.apache.commons.dbutils.ResultSetHandler;import org.apache.commons.dbutils.RowProcessor;import org.apache.commons.dbutils.handlers.BeanListHandler;import org.apache.commons.dbutils.handlers.BeanMapHandler;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import java.sql.ResultSet;import java.sql.SQLException;import java.util.ArrayList;import java.util.HashMap;import java.util.HashSet;import java.util.Map;/** * @Author lyr * @create 2019/12/17 21:17 */public class Main {
       public static void main(String[] args) {
           Axe proxy = (Axe) new AxeProxyJdk()                .getInstance(new StealAxe());        proxy.chop();    }}

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