从Asp.Net Web Api正确堆栈跟踪异步/任务调用

当我使用对Web Api的调用的客户端时发生错误。问题是我回来的堆栈跟踪有点难以理解，没有行号，所以我不确定在哪里寻找。这是作为Json响应返回的。从Asp.Net Web Api正确堆栈跟踪异步/任务调用

"message": "An error has occurred.", 
"exceptionMessage": "Object reference not set to an instance of an object.", 
"exceptionType": "System.NullReferenceException", 
"stackTrace": " at WakeSocial.Gateway.WebApi.Host.Controllers.NotificationsController.<Response>d__7.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Threading.Tasks.TaskHelpersExtensions.<CastToObject>d__3`1.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Controllers.ApiControllerActionInvoker.<InvokeActionAsyncCore>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Controllers.ActionFilterResult.<ExecuteAsync>d__2.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Filters.AuthorizationFilterAttribute.<ExecuteAuthorizationFilterAsyncCore>d__2.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Controllers.AuthenticationFilterResult.<ExecuteAsync>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Web.Http.Dispatcher.HttpControllerDispatcher.<SendAsync>d__1.MoveNext()" 
}

有没有一种方法可以配置web api来返回发生错误的行号，以便我可以更合适地调试问题？

的问题是这里介绍：Stack traces with async/await

我目前USNG .NET 4.5然而，错误仍然可以输出这种方式。

来源

2015-08-08 Joel Dean

你可以调试api吗？如果可以的话，您可以轻松查找“NullReferenceException”。 –

@JoelDean：'WakeSocial.Gateway.WebApi.Host.Controllers.NotificationsController。 d__7.MoveNext（）'表示它在'NotificationsController.Response'动作中。行动是否真的很漫长和复杂，以至于你需要一个行号来追踪它？ –

我使用其存储内部异常堆栈跟踪信息的扩展，例如，原来的代码：

try{  
    await NestedAsyncOperation(); 
}catch(NullReferenceException e){ 
    Debug.WriteLine(e) 
}

与可读堆栈跟踪：

try{  
    await NestedAsyncOperation().Trace(); 
}catch(Exception e){ 
    e.Catch((NullReferenceException ex) => { 
    Debug.WriteLine(e); 
    }).RethrowUnhandled(); 
}

和输出将包含具有线栈跟踪数字。查看更多https://github.com/ilio/AsyncStackTrace/blob/master/UnitTests/AsyncStackTraceExtensionUnitTest.cs

来源

2015-09-24 22:01:33 IgorL

从Asp.Net Web Api正确堆栈跟踪异步/任务调用

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