1.xml文件需要引入aop命名空间
2.xml内容:
<?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" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd"> <context:component-scan base-package="com.junge.demo"></context:component-scan> <aop:config> <aop:aspect id="logAspect" ref="myLog"> <aop:pointcut expression="execution (* com.junge.demo.spring.dao..*(..))" id="point_cut"/> <!-- <aop:before method="beforeFunc" pointcut-ref="point_cut"/> <aop:after method="afterFunc" pointcut-ref="point_cut"/> <aop:after-returning method="returnFunc" pointcut-ref="point_cut"/> <aop:after-throwing method="throwExpFunc" pointcut-ref="point_cut" throwing="e"/> --> <aop:around method="aroundFunc" pointcut-ref="point_cut"/> </aop:aspect> </aop:config> </beans>
切点的配置:使用一个星号*是匹配所有(同级的);使用2个点..匹配任意(同级和任意子级),如:
execution (* com.junge.demo.spring.dao.*.*(..)) 匹配dao包下所有类的所有方法
execution (* com.junge.demo.spring.dao..*(..)) 匹配dao包下所有类,包括子类的子类(以及子类的子类的子类等)的所有方法。
3.日志类(通知配置,可以获取被拦截方法的参数、返回结果、异常信息)
package com.junge.demo.spring.advice; import org.aspectj.lang.ProceedingJoinPoint; import org.springframework.stereotype.Component; import com.alibaba.fastjson.JSONObject; @Component("myLog") public class MyLogImpl { public void beforeFunc() { System.out.println("beforeFunc ..."); } public void afterFunc() { System.out.println("afterFunc ..."); } public void returnFunc() { System.out.println("returnFunc ..."); } public void throwExpFunc(Exception e) { System.out.println("throwExpFunc ..."); System.out.println(e.getMessage()); } public void aroundFunc(ProceedingJoinPoint point) { System.out.println("arount before invoke ..."); if (null != point.getArgs() && point.getArgs().length > 0) { for (Object arg : point.getArgs()) { System.out.println("args:" + JSONObject.toJSON(arg)); } } System.out.println(point.getTarget()); System.out.println(point.getThis()); System.out.println(point.getKind()); System.err.println(point.getClass()); System.out.println(point.getSignature()); try { Object result = point.proceed(); System.out.println("result:" + JSONObject.toJSONString(result)); System.out.println("after return ..."); } catch (Throwable e) { e.printStackTrace(); System.out.println("arount after throws ..."); } System.out.println("after ..."); } }
4.运行结果
5.spring和aop匹配的包maven配置如下,其中aspectjweaver和aspectjrt需要用1.8.11,用高版本的报错
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.junge.demo</groupId> <artifactId>spring-demo</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>spring-demo</name> <url>http://maven.apache.org</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.44</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.3.13.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>4.3.13.RELEASE</version> </dependency> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.8.11</version> </dependency> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjrt</artifactId> <version>1.8.11</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>4.3.13.RELEASE</version> </dependency> </dependencies> </project>
原文地址:https://www.cnblogs.com/junge8618/p/8366099.html
时间: 2024-08-29 20:18:30