/**
 * @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();

    }
}