Azure Functions 临时存储 [英] Azure Functions Temp storage

问题描述

当我尝试将文件保存到 Azure Functions 目录 (D:homedata emp esponse.pdf) 中的临时存储时，我收到以下错误.为什么我不能写入这个目录?

When I try to save a file to the Temp storage in Azure Functions directory (D:homedata emp esponse.pdf), I get the following error. Why can't I write to this directory?

mscorlib: Exception has been thrown by the target of an invocation. System: An exception occurred during a WebClient request. mscorlib: ***Could not find a part of the path 'D:homedata	emp
esponse.pdf'.***
2017-09-19T07:05:24.353 Function completed (Failure, Id=3aa4b740-ba8a-465c-ad7c-75b38fa2a472, Duration=334ms)
2017-09-19T07:06:31  No new trace in the past 1 min(s).

推荐答案

我建议使用 System.IO.Path.GetTempPath()，因为这将始终为我们提供任何给定系统的有效路径.

I recommend using System.IO.Path.GetTempPath() as this will always give us a valid path for any given system.

此外，对于给定实例，函数可能会同时执行多次，因此最好确保每次执行都有唯一的路径.这是一个简单的例子:

Additionally, functions may execute multiple times simultaneously for a given instance, so it's best to ensure we have a unique path for each execution. Here's a simple example:

var tempPath = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());

或者，我们可以使用 System.IO.Path.GetTempFileName() 在返回完整路径和唯一文件名之前额外创建文件.

Alternately, we can use System.IO.Path.GetTempFileName() which will additionally create the file before returning the full path and unique filename.

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