如何将大文件(> 25MB)上传到 Web 服务? [英] How do I upload large (> 25MB) files to a web service?

问题描述

我有一个 Web 服务，它接受一个字节 [] 并保存它.

I have a web service that takes a byte[] and saves it.

这适用于小"文件，但是一旦我达到一定大小，Web 服务就会失败并返回请求失败，HTTP 状态为 404:未找到."

This works fine for "small" files, but once I hit a certain size the web service fails and returns "The request failed with HTTP status 404: Not Found."

据我所知，这似乎是一个 IIS 设置，它限制了可以发布的文件的大小(以防止拒绝服务攻击).我试图增加该设置，但我无法确定什么设置以及在哪里/如何设置它.我使用的是 IIS7，而网络服务是在 .net (asmx) 中完成的.

From what I've seen this appears to be an IIS setting that limits the size of a file that can be posted (to prevent Denial of Service attacks). I've tried to increase that setting, but I am having trouble determining what setting and where/how one would set it. I am using IIS7 and the webservice is done in .net (asmx).

在web服务的web.config中我添加了以下内容(这似乎增加了可以接受的文件大小，但不是一直到这个设置大小)

In the web.config of the web service I have added the following (which seemed to increase the size of file that can be accepted, but not all the way to this setting size)

  <system.web>
     <httpRuntime executionTimeout="999999" maxRequestLength="2097151" />
     ...
  </system.web>

有关在何处(以及如何)增加文件大小的任何建议，我们将不胜感激.

Any suggestions on where (and how) to increase the size of file that the web service would be greatly appreciated.

推荐答案

除了问题中提到的 httpRuntime/maxRequestLength 之外，貌似还有一项可以添加到 web 服务的 web.config 文件中允许传输大文件.

In addition to the httpRuntime/maxRequestLength mentioned in the question, it looks like there is an additional item that can be added to the web service's web.config file to permit large file transfers.

  <system.webServer>
    <security>
      <requestFiltering>
        <requestLimits maxAllowedContentLength="2000000000" />
      </requestFiltering>
    </security>
  </system.webServer>

这似乎允许通过网络服务上传更大的文件.

This appears to enable larger files to be uploaded via web services.

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