XMLHttpRequest发送文件请求为大文件提供404错误

I have a controller action in my mvc 4 project that gets POST request that includes files. I am posting data with XMLHttpRequest to server. When I select 10mb or smaller files to upload, upload process is successfull. But when I select 40Mb files to upload, a 404 error is occuring.

我在我的mvc 4项目中有一个控制器动作，它获取包含文件的POST请求。我将XMLHttpRequest的数据发布到服务器。当我选择要上传的10mb或更小的文件时，上传过程是成功的。但是，当我选择上传40Mb文件时，会发生404错误。

Failed to load resource: the server responded with a status of 404 (Not Found) 


var formData = new window.FormData();
formData.append(this.file.name, this.file);

this.ajax = new XMLHttpRequest();
this.ajax.open("POST", "@Url.Action("FileUpload", "MyController", new { id = Model.Id })");
this.ajax.send(formData);

I put a breakpoint to my action method, small files post catched but big file requests did not come to the server, directly gives 404 error on browser console.

我给我的动作方法设置了一个断点，小文件被捕获但是大文件请求没有到达服务器，直接在浏览器控制台上给出404错误。

My action method is like this:

我的动作方法是这样的：

 [HttpPost]
 public ActionResult FileUpload(string id)
 {
     return Json("", JsonRequestBehavior.AllowGet);
 }

I setted web config file limits like this.

我设置了这样的web配置文件限制。

<httpRuntime targetFramework="4.5"
             maxRequestLength="2000000000" 
             executionTimeout="300"/>

1 个解决方案

#1

You can set your web config security settings like this.

您可以像这样设置Web配置安全设置。

<security>
  <requestFiltering>
    <requestLimits maxAllowedContentLength="2000000000"/>    
  </requestFiltering>
</security>