SpringMVC使用AOP监听方法推送数据-编程知识

SpringMVC使用AOP监听方法推送数据

导入aop的maven依赖

<dependency><groupId>org.aspectj</groupId><artifactId>aspectjweaver</artifactId><version>1.6.12</version>
</dependency>

创建一个spring的XML文件编写aop配置

<?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/beanshttp://www.springframework.org/schema/beans/spring-beans-3.0.xsdhttp://www.springframework.org/schema/aophttp://www.springframework.org/schema/aop/spring-aop-3.0.xsd"><!-- 装配切面类 --><bean id="mateDataServiceAspect" class="com.example.testproject.demo.aspect.MateDataServiceAspect"/><!--可以配置多个 aop:config 用于监听多个切面--><aop:config><aop:pointcut id="myExecution" expression="execution(* com.example.testproject.demo.controller.DemoController.test2(..))"/><aop:aspect ref="mateDataServiceAspect"><aop:before method="before" pointcut-ref="myExecution"/><aop:after-returning method="afterReturning" pointcut-ref="myExecution" returning="methodResult"/></aop:aspect></aop:config></beans>

编写切面代码

public class MateDataServiceAspect {public void before() {System.out.println(">>>>>>>目录aop方法开始执行>>>>>>>>");}/*** 方法执行完后调用* @param joinPoint* @param methodResult*/public void afterReturning(JoinPoint joinPoint, Object methodResult){// 方法执行完返回的结果System.out.println("监听方法的结果 " + methodResult);// 获取方法的入参Object[] args = joinPoint.getArgs();List<Object> objects = Arrays.asList(args);System.out.println("传入的参数：" + objects);}}