标签:cee ogg service base head context runtime beans http
主要是将上面的xml文件的内容替换掉,以下是xml文件所有内容,环绕通知的内容就是替换四种通知即可
<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="wordsService" class="com.mypro.service.impl.WordsServiceImpl"></bean> <bean id="logger" class="com.mypro.service.impl.WordsServiceImpl"></bean> <aop:config> <aop:aspect id="loggerAdvice" ref="logger"> <aop:pointcut id="pt1" expression="execution(* com.mypro.service.impl.*.*(..))"></aop:point> <aop:before method="beforeInfo" pointcut-ref="pt1"></aop:before> <aop:after-returning method="afterReturningInfo" pointcut-ref="pt1"></aop:after-returning> <aop:after-throwing method="afterThrowingInfo" pointcut-ref="pt1"></aop:after-throwing> <aop:after method="afterInfo" pointcut-ref="pt1"></aop:after> </aop:aspect> </aop:config> </beans>
首先我们需要配置我们扫描的包,将xml文件的Bean对象替换成注解,即在我们实现类上方添加注解。在此之前,还需要添加xmlns:context依赖
<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/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!-- 代替xml文件的两个Bean对象的配置 --> <context:component-scan base-package="com.mypro"></context:component-scan> </beans>
开启Spring支持的AOP配置
<aop:aspectj-autoproxy></aop:aspectj-autoproxy>
修改通知类的代码,注意实现五种通知标签的功能
package com.mypro.utils; ? import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.annotation.*; import org.springframework.stereotype.Component; ? /** * 用于记录日志的工具类,里面提供公共的代码 */ // 代替xml文件的<aop:config><aop:aspect id="loggerAdvice" ref="logger"></aop:aspect></aop:config> @Component("logger") @Aspect public class Logger { // 代替切入点的配置 @Pointcut("execution(* com.mypro.service.impl.*.*(..))") public void pt1(){} ? @Before("pt1()") public void beforeInfo(){ System.out.println("前置通知"); } @AfterReturning("pt1()") public void totalInfo(){ System.out.println("后置通知"); } @AfterThrowing("pt1()") public void expectInfo(){ System.out.println("异常通知"); } @After("pt1()") public void afterInfo(){ System.out.println("最终通知"); } @Around("pt1()") public Object aroundInfo(){ Object rtValue = null; try{ System.out.println("前置通知"); // 得到方法执行时所需的参数 Object[] args = pjp.getArgs(); // 明确调用业务层方法(切入点方法) rtValue = pjp.proceed(args); System.out.println("后置通知"); return rtValue; }catch(Throwable t){ // 必须是用Throwable捕捉异常 System.out.println("异常通知"); throw new RuntimeException(t); }finally{ System.out.println("最终通知"); } } ? } ?
标签:cee ogg service base head context runtime beans http
原文地址:https://www.cnblogs.com/aitiknowledge/p/12713143.html