异常处理和事后建议 [英] Exception handling and after advice

问题描述

我在 Spring Boot 中使用 AOP.在成功执行某些方法后，我在 AOP 中使用 @After 建议来进行一些数据库插入.有一种情况，如果该方法在某处抛出异常，那么我不想执行我的 @After 建议调用.

I am using AOP with spring boot. After some method execution successfully I am using @After advice in AOP to do some data base insertion. There is one case if the method throw an exception somewhere then I don't want to execute my @After advice call.

我不知道我是否在 AOP 中捕获异常，我的 after 建议方法也将执行.

I don't have any idea if I catch exception in AOP also my after advise method will going to execute.

@After(value = "execution(* saveUpdateMeasures(..)) and args(addMeasure)")
public void afterAdviseMeasure(JoinPoint joinPoint,AddMeasures addMeasure) throws Exception {
    logger.info("url is " + request.getRequestURL() + "?"  + request.getQueryString()); 
    saveUserLog(addMeasure.getUserId(), "add update measure",addMeasure.getReviewId()); 
}

因此，如果我的方法 saveUpdateMeasures() 成功执行而没有任何异常，那么只有我在寻找执行 afterAdviseMeasure.任何帮助将不胜感激.

So if my method saveUpdateMeasures() executed successfully without any exception then only I am looking for executing afterAdviseMeasure. Any help will be appreciated.

推荐答案

请阅读 Spring AOP 手册，尤其是关于 建议类型.一般来说，在使用新技术之前阅读手册总是一个好主意.;-)

Please read the Spring AOP manual, especially the chapter about advice types. In general it is always a good idea to read a manual before using a new technology. ;-)

• @After 总是在方法终止后执行，无论是否有异常.更专业的版本只运行
• @AfterThrowing 异常或
• @AfterReturning 定期.后者就是您要查找的内容，如果您想记录它，它甚至可以让您访问返回值.

• @After is always executed after a method terminates, no matter if there was an exception or not. More specialised versions only run
• @AfterThrowing an exception or
• @AfterReturning regularly. The latter is what you are looking for and it even gives you access to the return value if you like to log it or so.

不过，这些通知类型都不会让您处理异常，正如我也在此处解释的那样.为此，您需要使用 @Around 建议.

None of these advice types will let you handle the exception, though, as I also explain here. You need to use an @Around advice for that.

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