來(lái)千鋒學(xué)習(xí)的第15天加油！
AOP的第五種實(shí)現(xiàn)方式-xml通知

IUserServcie.java
public interface IUserService {

    /**
     * 獲取所有的用戶對(duì)象列表
     * @return
     */
    List<Object> getAllUser();

    /**
     * 保存用戶
     * @param user
     * @return
     */
    boolean saveUser(Object user);

    /**
     * 根據(jù)用戶uid刪除該uid對(duì)應(yīng)的用戶信息
     * @param uid
     * @return
     */
    boolean deleteUser(int uid);

    /**
     * 更新指定用戶信息
     * @param obj
     * @return
     */
    boolean updateUser(Object obj);


    void getUserByUid();
}

UserServiceImpl.java

package com.qfedu.aop05;

import java.util.ArrayList;
import java.util.List;

public class UserServiceImpl implements IUserService {

    @Override
    public List<Object> getAllUser() {
        System.out.println("--------getAllUser----------");
        return new ArrayList<>();
    }

    @Override
    public boolean saveUser(Object user) {
        System.out.println("--------saveUser----------");
        return true;
    }

    @Override
    public boolean deleteUser(int uid) {
        System.out.println("--------deleteUser----------");
        return false;
    }

    @Override
    public boolean updateUser(Object obj) {
        System.out.println("--------updateUser----------");
        return true;
    }

    @Override
    public void getUserByUid() {
        System.out.println("--------getUserByUid----------");
        System.out.println(1 / 0);
        String str = null;
        System.out.println(str.length());
    }
}

package com.qfedu.aop05;

import java.util.ArrayList;
import java.util.List;

public class UserServiceImpl implements IUserService {

    @Override
    public List<Object> getAllUser() {
        System.out.println("--------getAllUser----------");
        return new ArrayList<>();
    }

    @Override
    public boolean saveUser(Object user) {
        System.out.println("--------saveUser----------");
        return true;
    }

    @Override
    public boolean deleteUser(int uid) {
        System.out.println("--------deleteUser----------");
        return false;
    }

    @Override
    public boolean updateUser(Object obj) {
        System.out.println("--------updateUser----------");
        return true;
    }

    @Override
    public void getUserByUid() {
        System.out.println("--------getUserByUid----------");
        System.out.println(1 / 0);
        String str = null;
        System.out.println(str.length());
    }
}

beans.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd">

    <bean id="us" class="com.qfedu.aop05.UserServiceImpl"/>
    <bean id="ma" class="com.qfedu.aop05.MyAspect" />

    <aop:config proxy-target-class="true">
        <aop:aspect ref="ma">
            <aop:pointcut id="mpc" expression="execution(* com.qfedu.aop05.*.*(..))" />

            <aop:before method="myBefore" pointcut-ref="mpc"/>
            <aop:after method="myAfter" pointcut-ref="mpc" />
            <aop:around method="myAround" pointcut-ref="mpc" />
            <aop:after-returning method="myReturn" pointcut-ref="mpc" returning="obj" />
            <aop:after-throwing method="myThrow" pointcut-ref="mpc" throwing="e" />
        </aop:aspect>
    </aop:config>
</beans>

TestAOP05.java

package com.qfedu.aop05;

import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class TestAOP05 {

    @Test
    public void test(){
        ApplicationContext ac = new ClassPathXmlApplicationContext("com/qfedu/aop05/beans.xml");

        IUserService us = ac.getBean("us", IUserService.class);

        us.updateUser(new Object());
        us.getAllUser();
        us.saveUser(new Object());
        us.deleteUser(1);
        us.getUserByUid();
    }
}

送大家一句話：“衣帶漸寬終不悔，為伊消得人憔悴”。不知何時(shí)我們才能達(dá)到這種境界。