我应该抓住唯一的例外日志呢？ [英] Should I catch exceptions only to log them?

问题描述

我应该抓住进行日志记录异常？

Should I catch exceptions for logging purposes?

public foo(..)
{
   try
   {
     ...
   } catch (Exception ex) {
     Logger.Error(ex);
     throw;
   }
}

如果我在我的每个层（数据访问，商务和WebService）都有这种到位这意味着记录异常几次。

If I have this in place in each of my layers (DataAccess, Business and WebService) it means the exception is logged several times.

是否有意义这样做，如果我的层在不同的项目，只有公共接口具有的try / catch在其中？
为什么呢？为什么不？是否有不同的方法，我可以使用？

Does it make sense to do so if my layers are in separate projects and only the public interfaces have try/catch in them? Why? Why not? Is there a different approach I could use?

推荐答案

非也。你应该找到正确的位置为处理除外（实际上做一些事情，比如接球未重新抛出），然后记录它。您可以并且应该包括课程的整个堆栈跟踪，但按照你的建议将垃圾用的try-catch块中的代码。

Definitely not. You should find the correct place to handle the exception (actually do something, like catch-and-not-rethrow), and then log it. You can and should include the entire stack trace of course, but following your suggestion would litter the code with try-catch blocks.

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