Spring MVC最佳实践处理控制器中不可恢复的异常 [英] Spring MVC Best Practice Handling Unrecoverable Exceptions In Controller

问题描述

当您有一个控制器执行逻辑与服务和DAO可能会引起不可恢复的异常时，处理这些方法调用的最佳做法是什么？

When you have a controller that does logic with services and DAO's that may throw an unrecoverable exception, what is the best practice in dealing with those method calls?

目前我正在开发的一个应用程序有非常漫长的try catch方法，简单地err.out异常消息，这似乎不是很强大，我认为这个代码闻起来，是否有任何cookie切割器最佳实践在spring-mvc中处理这个？

Currently an app I'm working on has very lengthy try catch methods that simply err.out exception messages, this doesn't seem very robust and I think that this code smells, is there any cookie cutter best practice for handling this in spring-mvc?

推荐答案

查看 @ ExceptionHandler

它像

@ExceptionHandler(IOException.class)
@ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
public void handleExc(IOException ext) {}

这将捕获控制器方法抛出的所有IOExceptions并写出一个500的回应。

That would catch all IOExceptions thrown by the controller method and write out a 500 to the response.

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