Console.WriteLine 有时会抛出 handle is invalid 异常
[英]Console.WriteLine sometimes throws the handle is invalid exception
问题描述
I have an Azure function which has this line of code:
我有一个 Azure function 有这行代码：
Console.WriteLine("Name: " + list.Count());
This line sometimes throws this exception:此行有时会抛出此异常：
The handle is invalid.
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+d__26.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.34.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs:352)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult (System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e) at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+d__18.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.34.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs:108) Inner exception System.IO.I
Should we ignore this or don't use console class in Azure function?我们应该忽略这个还是不要在 Azure function 中使用控制台 class？
1 个解决方案
解决方案1
6 已采纳 2022-12-28 08:40:06
This happens when the console window has been closed, or if the console output has been redirected to a file or other stream.当控制台 window 已关闭，或者控制台 output 已被重定向到文件或其他 stream 时，会发生这种情况。
In azure functions, you should not use the Console.WriteLine .在 azure 函数中，您不应使用Console.WriteLine 。 instead, you should use ILogger to write logs.相反，您应该使用ILogger来编写日志。 you can write logs like log.LogInformation("Name: " + list.Count());您可以编写日志，例如log.LogInformation("Name: " + list.Count()); , this will write output to the Azure Functions runtime log. ，这会将 output 写入 Azure 函数运行时日志。 you can also view logs in the azure portal.您还可以在 azure 门户中查看日志。
Edit : As @Fildor suggested in comment, you could use log.LogInformation("Name: {count}", list.Count());编辑：正如@Fildor 在评论中建议的那样，您可以使用log.LogInformation("Name: {count}", list.Count());
声明:本站的技术帖子网页，遵循CC BY-SA 4.0协议，如果您需要转载，请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.