文件下载失败过在IE HTTPS [英] File download fails over https in IE
本文介绍了文件下载失败过在IE HTTPS的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我想下载一个文件通过HTTPS和放大器;它不能在IE,但与Firefox和功放完美的作品;铬:
I'm trying to download a file over HTTPS & it fails in IE but works perfectly with Firefox & Chrome:
ASPX代码如下:
<%@ Page Language="C#" MasterPageFile="~/MasterPage.Master" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="CRISIIWebApplication1.Default" Title="Untitled Page" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
</asp:Content>
代码背后的按钮,点击代码如下:
Code behind code on button click is as follows:
protected void Button1_Click(object sender, EventArgs e)
{
string filename = TextBox1.Text;
string filepath = Server.MapPath(filename);
byte[] bytFile = null;
FileStream fs = new FileStream(filepath, FileMode.Open, FileAccess.Read);
BinaryReader br = new BinaryReader(fs);
long numBytes = new FileInfo(filepath).Length;
bytFile = br.ReadBytes((int)numBytes);
string extension = ".xlsx";
Response.ClearHeaders();
Response.Clear();
Response.Buffer = true;
if (extension == ".doc")
{
Response.ContentType = "application/vnd.ms-word";
Response.AddHeader("content-disposition", "attachment;filename=" + filename);
}
else if (extension == ".docx")
{
Response.ContentType = "application/vnd.openxmlformats-officedocument.wordprocessingml.document";
Response.AddHeader("content-disposition", "attachment;filename=" + filename);
}
else if (extension == ".xls" || extension == ".xlsx")
{
if (extension == ".xls")
{
Response.ContentType = "application/vnd.ms-excel";
Response.AddHeader("content-disposition", "attachment;filename=" + filename);
}
else
{
Response.ContentType = "application/ms-excel";
//Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
Response.AddHeader("content-disposition", "attachment;filename=" + filename);
}
}
else if (extension == ".pdf")
{
Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition", "attachment;filename=" + filename);
}
Response.Charset = "";
Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.BinaryWrite(bytFile);
HttpContext.Current.ApplicationInstance.CompleteRequest();
Response.End();
}
请帮忙
推荐答案
由于用户 SquidScareMe 写道,你要忽略/不碰下载他们通过SSL当Office文件高速缓存设置。
As user SquidScareMe writes, you have to ignore/don't touch the cache settings for Office files when downloading them over SSL.
我有像片段的 ashx的
处理程序
// "Internet Explorer is unable to open Office documents from an SSL Web site".
// http://support.microsoft.com/kb/316431/en-us
if (!context.Request.IsSecureConnection || !isInternetExplorer(context))
{
// No cache.
context.Response.Cache.SetCacheability(HttpCacheability.NoCache);
context.Response.AppendHeader(@"Pragma", @"no-cache");
}
通过这个功能:
private static bool isInternetExplorer(HttpContext context)
{
return context.Request.Browser.Browser == @"IE";
}
这篇关于文件下载失败过在IE HTTPS的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文