asp.net - elmah 是否也处理捕获的异常

Question

即使异常没有冒泡到应用程序，ELMAH是否也会记录异常？我想在发生异常时弹出一条消息并仍然记录异常。目前我一直在尝试捕获块并吐出消息，但这变得乏味。

Answer 1

ELMAH has been updated to support a new feature called Signaling.

This allows you to handle exceptions how you want, while still logging them to ELMAH.

try
{
    int i = 5;
    int j = 0;
    i = i / j; //Throws exception
}
catch (Exception ex)
{
    MyPersonalHandlingCode(ex);
    ErrorSignal.FromCurrentContext().Raise(ex); //ELMAH Signaling
}

Re-throwing exceptions can be a bad practice as it makes it difficult to trace the flow of an application. Using Signaling is a much better approach if you intended to handle the error in some fashion and simply want to document it.

Please check out this excellent guide by DotNetSlackers on ELMAH

Answer 2

过滤器是处理这个问题的最干净的方法。在此处检查此解决方案https://stackoverflow.com/a/5936867/965935