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                [TOC] # 使用注解 需要改下配置文件 ~~~ <!-- 準備工作:導入aop(約束)命名空間 --> <!-- 1.配置目標對象 --> <bean name="userService" class="service.UserServiceImpl"></bean> <!-- 2.配置通知對象 --> <bean name="myAdvice" class="aspect.MyAdvice"></bean> <!-- 3.開啟使用注解完成織入,開啟aspectJ注解自動代理功能 --> <aop:aspectj-autoproxy /> </beans> ~~~ # 注解定義切點 使用@Pointcut注解定義切點 在每一個通知中定義切點,工作量大,不方便維護,我們可以使用@Pointcut來聲明切點 切點允許邏輯運算例如`mypointcut()||mypointcut1` ~~~ @Pointcut("execution(* *.s*(..))") private void mypointcut(){} @Pointcut("execution(* *.update(..))") private void mypointcut1(){} //前置通知 @Before("mypointcut()||mypointcut1()") public void before() { Systemctl.out.println("前置通知...") } ~~~ # 異常信息的捕獲 ~~~ /** * 異常通知 */ @AfterThrowing(pointcut = "MyAdvice.pc()", throwing = "e") public void afterException(Exception e) { System.out.println("出現異常了: " + e.toString()); } ~~~ 加exception需要原方法有拋出異常
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