Spring中的异常消息处理

红太狼 2023-07-20 15:58 8阅读 0赞

在Spring中可以对异常消息统一由Spring容器管理  
1 异常出现的位置

package com.zxf.demo;
    
    public class Demo1 { 
        public void demo1(){ 
            int r=4/0;
            System.out.println("demo1");
        }
        public void demo2(){ 
            System.out.println("demo2");
        }
        public void demo3(){ 
            System.out.println("demo3");
        }
    }

2 异常处理类，就是一个普通的方法类。它需要有Spring容器配置来管理

package com.zxf.advice;
    
    public class MyThrowAdvice { 
        public void myexeception(){ 
            System.out.println("执行了异常通知");
        }
    }

3 Spring 配置文件  
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<?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="mybefore" class="com.zxf.advice.MyBeforeAdvice"/>
        <bean id="after" class="com.zxf.advice.MyAfterAdvice"/>
        <bean id="mythrow" class="com.zxf.advice.MyThrowAdvice"/>
    <aop:config>
           <aop:pointcut id="aop1" expression="execution(* com.zxf.demo.*.*(..))"/>
           
           
           
        <aop:advisor advice-ref="after" pointcut-ref="aop1"/>
        <aop:advisor advice-ref="mybefore" pointcut-ref="aop1"/>
        <aop:aspect ref="mythrow"> 
            <aop:pointcut id="myex1" expression="execution(* com.zxf.demo.Demo1.demo1(..))"/>
            <aop:after-throwing method="myexeception" pointcut-ref="myex1"/>
        </aop:aspect>
    </aop:config>
    <bean id="demo1" class="com.zxf.demo.Demo1"/>
    <bean id="demo2" class="com.zxf.demo.Demo2"/>
    
    </beans>

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYW5nNjEzMjMyNg_size_16_color_FFFFFF_t_70 1]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYW5nNjEzMjMyNg_size_16_color_FFFFFF_t_70 2]

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