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pom.xml

<?xml version="1.0" encoding="UTF-8"?> <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.dym</groupId><artifactId>day03_eesy_05annotationAOP</artifactId><version>1.0-SNAPSHOT</version><build><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><configuration><source>1.6</source><target>1.6</target></configuration></plugin></plugins></build><packaging>jar</packaging><dependencies><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>5.0.2.RELEASE</version></dependency><dependency><groupId>org.aspectj</groupId><artifactId>aspectjweaver</artifactId><version>1.8.7</version></dependency></dependencies></project>

IAccountService.java

package com.itheima.service;/*** 賬戶的業務層接口*/ public interface IAccountService {/*** 模擬保存賬戶*/void saveAccount();/*** 模擬更新賬戶* @param i*/void updateAccount(int i);/*** 刪除賬戶* @return*/int deleteAccount(); }

AccountServiceImpl.java

package com.itheima.service.impl;import com.itheima.service.IAccountService; import org.springframework.stereotype.Service;/*** 賬戶的業務層實現類*/ @Service("accountService") public class AccountServiceImpl implements IAccountService{@Overridepublic void saveAccount() {System.out.println("執行了保存"); // int i=1/0;}@Overridepublic void updateAccount(int i) {System.out.println("執行了更新"+i);}@Overridepublic int deleteAccount() {System.out.println("執行了刪除");return 0;} }

Logger.java

package com.itheima.utils;import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.annotation.*; import org.springframework.stereotype.Component;/*** 用于記錄日志的工具類，它里面提供了公共的代碼*/ @Component("logger") @Aspect//表示當前類是一個切面類 public class Logger {@Pointcut("execution(* com.itheima.service.impl.*.*(..))")private void pt1(){}/*** 前置通知*/ // @Before("pt1()")public void beforePrintLog(){System.out.println("前置通知Logger類中的beforePrintLog方法開始記錄日志了。。。");}/*** 后置通知*/ // @AfterReturning("pt1()")public void afterReturningPrintLog(){System.out.println("后置通知Logger類中的afterReturningPrintLog方法開始記錄日志了。。。");}/*** 異常通知*/ // @AfterThrowing("pt1()")public void afterThrowingPrintLog(){System.out.println("異常通知Logger類中的afterThrowingPrintLog方法開始記錄日志了。。。");}/*** 最終通知*/ // @After("pt1()")public void afterPrintLog(){System.out.println("最終通知Logger類中的afterPrintLog方法開始記錄日志了。。。");}@Around("pt1()")public Object aroundPringLog(ProceedingJoinPoint pjp){Object rtValue = null;try{Object[] args = pjp.getArgs();//得到方法執行所需的參數System.out.println("Logger類中的aroundPringLog方法開始記錄日志了。。。前置");rtValue = pjp.proceed(args);//明確調用業務層方法（切入點方法）System.out.println("Logger類中的aroundPringLog方法開始記錄日志了。。。后置");return rtValue;}catch (Throwable t){System.out.println("Logger類中的aroundPringLog方法開始記錄日志了。。。異常");throw new RuntimeException(t);}finally {System.out.println("Logger類中的aroundPringLog方法開始記錄日志了。。。最終");}} }

bean.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"xmlns:context="http://www.springframework.org/schema/context"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/aophttp://www.springframework.org/schema/aop/spring-aop.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context.xsd"><!-- 配置spring創建容器時要掃描的包--><context:component-scan base-package="com.itheima"></context:component-scan><!-- 配置spring開啟注解AOP的支持 --><aop:aspectj-autoproxy></aop:aspectj-autoproxy> </beans>

AOPTest.java

package com.itheima.test;import com.itheima.service.IAccountService; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext;/*** 測試AOP的配置*/ public class AOPTest {public static void main(String[] args) {//1.獲取容器ApplicationContext ac = new ClassPathXmlApplicationContext("bean.xml");//2.獲取對象IAccountService as = (IAccountService)ac.getBean("accountService");//3.執行方法as.saveAccount();} }

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