通过2Gb上传文件到IIS 8/ASP.NET 4.5？

Question

我需要将10Gb文件一起上传到IIS.据我所知,IIS 7.x/ASP.NET 4.0不支持超过2Gb的上传(有人说4Gb).

它是在IIS 8/ASP.NET 4.5中修复的吗？

Answer 1

这是我如何上传4GB以下(我想知道如何打破这个限制):App池是.NET 4.0经典模式(为什么没有4.5？).web.config中:

<httpRuntime executionTimeout="2400" maxRequestLength="2099999999" />
...
<requestLimits maxAllowedContentLength="4294967290"/>

根据这篇文章http://msdn.microsoft.com/en-us/library/hh195435%28v=vs.110%29.aspx

public override Stream InputStream
{
    get
    {
        object workerRequest = ((IServiceProvider)HttpContext.Current).GetService(typeof(HttpWorkerRequest));
        bool webDevServer = workerRequest != null &&
                            workerRequest.GetType().FullName == "Microsoft.VisualStudio.WebHost.Request";

        if (request.GetType().Assembly.GetName().Version.Major >= 4 && !webDevServer)
        {
            try // trying to set disableMaxRequestLength true for .NET 4.5
            {
                return (Stream)typeof(HttpRequest).GetMethod("GetBufferlessInputStream", BindingFlags.Public | BindingFlags.Instance, null, new[] { typeof(bool) }, null)
                                        .Invoke(request, new object[] { true });
            }
            catch (NullReferenceException)
            { // .NET 4.0 is not patched by adding method overload
                Log(DateTime.Now + ": Can not invoke .NET 4.5 method");
            }
            return (Stream) typeof (HttpRequest).GetMethod("GetBufferlessInputStream",
                                                           BindingFlags.Public | BindingFlags.Instance,
                                                           null, new Type[0], null)
                                                .Invoke(request, new object[0]);
        }
        return request.InputStream;
    }
}

Log表示从.NET 4.5中调用方法没有异常.但是这个链接http://aspnet.uservoice.com/forums/41199-general-asp-net/suggestions/2642879-maximum-upload-size-in-asp-net-is-2gb-increase-it说:"已完成这个限制在4.5增加."

所以我只有一个问题:"如何？"