ERR_CONNECTION_RESET：上传大文件时重置了连接

问题描述

我有一个神秘的错误，大于4MB的文件会产生随机错误。后来我意识到这是由于
。默认情况下上传时，图片不能超过4MB。

I had a mysterious error where a file greater than 4MB generated a random error. Later on I realized it was caused due to the http maxrequestlength. An image cannot be greater than 4MB when uploaded by default.

我知道这可以从web.config文件中改变。

I know that this can change from the web.config file.

当我试图迎合这个时错误，通过显示另一个页面，弹出一个不同的错误弹出。调试时，程序立即进入application_error。

When I tried to cater for this error, by displaying another page, a different error started popping up. When debugging, the program enters application_error immediately.

执行 Server.GetLastError（）生成异常时：

堆栈跟踪：位于
System.Web.UI的System.Web.UI.Page.HandleError（例外e）处。 Page.ProcessRequestMain（布尔
includeStagesBeforeAsyncPoint，布尔includeStagesAfterAsyncPoint）
在System.Web.UI.Page.ProcessRequest（布尔
includeStagesBeforeAsyncPoint，布尔includeStagesAfterAsyncPoint）
在System.Web.UI。 Page.ProcessRequest（）at
System.Web.UI.Page.ProcessRequestWithNoAssert（HttpContext context）at
System.Web.UI.Page.ProcessRequest（HttpContext context）at
ASP.businessprofile_aspx。
c中的ProcessRequest（HttpContext上下文）：\ Users \ Mattew \ App Data \ Local \Temp \Temporary ASP.NET
Files \root \ 4ea30077\8f66786f\App_Web_h5fmhavk.4.cs：$ 0
的System.Web.HttpApplication.CallHandlerExecutionStep。 System.Web.HttpApplication.IExecutionStep.Execute（）
at System.Web.HttpApplication.ExecuteStep（IExecutionStep step，
Boolean& completedSynchronously）

the stack trace: at System.Web.UI.Page.HandleError(Exception e) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) at System.Web.UI.Page.ProcessRequest(HttpContext context) at ASP.businessprofile_aspx.ProcessRequest(HttpContext context) in c:\Users\Mattew\AppData\Local\Temp\Temporary ASP.NET Files\root\4ea30077\8f66786f\App_Web_h5fmhavk.4.cs:line 0 at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

如果我在application_error方法中尝试任何代码，例如重定向，仍然是错误页面：
错误101（net :: ERR_CONNECTION_RESET）：连接已重置。显示
。

If I try any code inside the application_error method, e.g. redirecting, still the error page:Error 101 (net::ERR_CONNECTION_RESET): The connection was reset.is displayed.

问题

1. 如何处理此错误？可以事先处理吗？那么这个错误没有显示出来？ （我尝试使用jquery来获取文件大小并检查它，但我发现它太复杂了

1. How should this error be handled? Can it be handled before hand? So this error is not displayed? ( I tried using jquery to get the file size before and check it but I'm finding it too complex

如果问题1不是'回答'，是有没有办法拦截这个错误并显示一个友好的错误？

If Question 1 is not 'answerable', is there a way to intercept this error and display a friendly error?

推荐答案

试试这个。

在web.config中的系统网站下

Under system web in web.config

添加此行..

  <system.web>
<httpRuntime executionTimeout="999" maxRequestLength="2097151"/>

然后你需要检查文件大小

Then you need to check the file size

if (AsyncFileUpload1.HasFile)
        {
            string FileName = Path.GetFileName(AsyncFileUpload1.PostedFile.FileName);
            string Extension = Path.GetExtension(AsyncFileUpload1.PostedFile.FileName);
            string FolderPath = ConfigurationManager.AppSettings["FolderPath"];
            string FilePath = Server.MapPath("~/xl/" + FileName);
            double filesize = (double)AsyncFileUpload1.FileBytes.Length;
            if (filesize < 106496)
            {
               //do something
            }
            else
            {
                Response.Write("File size must be less than 2MB.");
            }

如果您觉得有用，请将其标记为您的答案，否则请告诉我..

If you find it useful, please mark it as your answer else let me know..

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