.NET Core 3 &IIS Express maxAllowedContentLength 不起作用 [英] .NET Core 3 & IIS Express maxAllowedContentLength not working

问题描述

我有一个 JavaScript 应用程序，它正在将文件发布到 .NET Core 3 Web API.
Web API 项目在 IIS Express 上本地运行.

I have a JavaScript application which is posting files to .NET Core 3 Web API.
Web API project works locally on IIS Express.

小于 30 MB 的文件工作正常，但大文件无法通过.

Files below 30 MB are working fine, but large files does not get through.

这里我试过了；

1- 使用新的 maxAllowedContentLength 值更新 %userprofile%my documentsiisexpressconfigapplicationhost.config 文件.

1- Update %userprofile%my documentsiisexpressconfigapplicationhost.config file with new maxAllowedContentLength value.

2- 将 RequestSizeLimit 属性添加到控制器操作.

2- Add RequestSizeLimit attribute to Controller Action.

这里还有什么我遗漏的吗?

Is there anything else I am missing here?

推荐答案

我遇到了同样的问题(从 .NET Core 3 开始)，首先找到了解决方法，然后找到了正确的解决方案.

I had the same problem (since .NET Core 3), and found a workaround first, then a proper solution.

解决方法:在您的 web.config 文件中，使用AspNetCoreModule"而不是AspNetCoreModuleV2"，但您将不再受益于新模块的优势.

Workaround: in your web.config file, use "AspNetCoreModule" instead of "AspNetCoreModuleV2", but you no longer benefit from the advantages of the new module.

解决方案:将此添加到您的 startup.cs 文件

A solution: add this to your startup.cs file

services.Configure<IISServerOptions>(options =>
{
    options.MaxRequestBodySize = int.MaxValue; // or your desired value
});

我在这里找到了这个信息:https://docs.microsoft.com/en-us/aspnet/core/host-and-deploy/iis/?view=aspnetcore-3.1#application-configuration.IIS 选项 > 进程内托管模型，然后属性MaxRequestBodySize".为此，您仍然需要将 web.config 配置为如下内容:

I found this info here: https://docs.microsoft.com/en-us/aspnet/core/host-and-deploy/iis/?view=aspnetcore-3.1#application-configuration. IIS options > In-process hosting model, then attribute "MaxRequestBodySize". For this to work, you still need to have your web.config configured with something like this:

<security>
  <requestFiltering>
    <requestLimits maxAllowedContentLength="2147483647" /> //or your desired value
  </requestFiltering>
</security>

希望能帮到你！

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