.Net 下载文件变成下载页面

Question

.Net 下载文件 .Net下载文件迅雷

Answer 1

贴出你的 Content-disposition、ContentType 这两个信息。可能是后一个错了。

Answer 2

try
           {
           HttpContext.Current.Response.ContentType = "text/html";
           string filename = path.Substring(path.LastIndexOf("/")+1);
           HttpContext.Current.Response.AddHeader("Content-Disposition","attachment;filename="+filename);
           //**指定编码,防止中文文件名乱码
           HttpContext.Current.Response.HeaderEncoding = System.Text.Encoding.GetEncoding("gb2312");
           HttpContext.Current.Response.TransmitFile(path);
           }
           catch{throw;}

Answer 3

ContentType  不要设置成网页类型。

Answer 4

这个你真的应该自己去了解一下啊。我不负责帮写作业的哦。其实设置成别的什么（哪怕是错的），也一样解决你的问题的。例如application/vnd.android.package-archive
video/x-msvideo
application/msword
application/msword
video/x-flv
image/gif
image/x-icon
application/vnd.ios.package-archive
image/jpeg
image/jpeg
pplication/javascript
image/png
text/plain
application/vnd.ms-powerpoint
application/vnd.ms-powerpoint
application/vnd.ms-powerpoint
application/vnd.ms-powerpoint
application/vnd.openxmlformats-officedocument.presentationml.presentation
application/vnd.openxmlformats-officedocument.presentationml.template
application/vnd.openxmlformats-officedocument.presentationml.slideshow
application/vnd.ms-powerpoint.addin.macroEnabled.12
application/vnd.ms-powerpoint.presentation.macroEnabled.12
application/vnd.ms-powerpoint.presentation.macroEnabled.12
application/vnd.ms-powerpoint.slideshow.macroEnabled.12
application/x-silverlight-app
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
application/vnd.openxmlformats-officedocument.spreadsheetml.template
application/vnd.ms-excel.sheet.macroEnabled.12
application/vnd.ms-excel.template.macroEnabled.12
application/vnd.ms-excel.addin.macroEnabled.12
application/vnd.ms-excel.sheet.binary.macroEnabled.12任选一个你认为接近的好了。实在不知道，就写 application/octet-stream。

Answer 5

这个你真的应该自己去了解一下啊。我不负责帮写作业的哦。其实设置成别的什么（哪怕是错的），也一样解决你的问题的。例如application/vnd.android.package-archive
video/x-msvideo
application/msword
application/msword
video/x-flv
image/gif
image/x-icon
application/vnd.ios.package-archive
image/jpeg
image/jpeg
pplication/javascript
image/png
text/plain
application/vnd.ms-powerpoint
application/vnd.ms-powerpoint
application/vnd.ms-powerpoint
application/vnd.ms-powerpoint
application/vnd.openxmlformats-officedocument.presentationml.presentation
application/vnd.openxmlformats-officedocument.presentationml.template
application/vnd.openxmlformats-officedocument.presentationml.slideshow
application/vnd.ms-powerpoint.addin.macroEnabled.12
application/vnd.ms-powerpoint.presentation.macroEnabled.12
application/vnd.ms-powerpoint.presentation.macroEnabled.12
application/vnd.ms-powerpoint.slideshow.macroEnabled.12
application/x-silverlight-app
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.ms-excel
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
application/vnd.openxmlformats-officedocument.spreadsheetml.template
application/vnd.ms-excel.sheet.macroEnabled.12
application/vnd.ms-excel.template.macroEnabled.12
application/vnd.ms-excel.addin.macroEnabled.12
application/vnd.ms-excel.sheet.binary.macroEnabled.12任选一个你认为接近的好了。实在不知道，就写 application/octet-stream。
好的.thanks..

Answer 6

我需要下载jpg 和 psd 两种格式文件..
ContentType 设置成这个 application/octet-stream  后 
本来应该是a.jpg 但是变成了a.html了。。

Answer 7

.Net对指定文件下载示例
//引入命名空间
using System.IO;
//加载自定义方法
protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)//首次加载
        {
            addListBox();   //调用用户自定义的addListBox方法            
        }
    }
//自定义方法绑定控件
protected void addListBox()
    {
        //将指定文件夹中的文件保存到字符串数组中
        string[] name = Directory.GetFiles(Server.MapPath("File"));
        foreach (string s in name)
        {
            //将文件名添加到ListBox中
            LisBoxFile.Items.Add(Path.GetFileName(s));
        }     
    }
//把控件赋值给变量
protected void ListBox1_SelectedIndexChanged(object sender, EventArgs e)
    {
        Session["txt"] = LisBoxFile.SelectedValue.ToString();//从ListBox控件中选择的项赋值给Session["txt"]中
    }
//获取下载路径下载文件
 protected void dFile()
    {
        //判断是否选择文件名
        if (LisBoxFile.SelectedValue != "")
        {
            if (Session["txt"] != "")
            {   //获取文件路径
                string path = Server.MapPath("File/") + Session["txt"].ToString();
                //初始化 FileInfo 类的实例，它作为文件路径的包装
                FileInfo fi = new FileInfo(path);
                
                //判断文件是否存在
                if (fi.Exists)
                {
                    //将文件保存到本机上
                    Response.Clear();
                    Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(fi.Name));
                    Response.AddHeader("Content-Length", fi.Length.ToString());
                    Response.ContentType = "application/octet-stream";
                    Response.Filter.Close();
                    Response.WriteFile(fi.FullName);
                    Response.End();
                }
            }//CodeGo.net/
        }
        else
        {
            Page.RegisterStartupScript("sb", "<script>alert('请您先选择文件名')</script>");
        }
    }
//把需要下载的文件保存到本地磁盘
  protected void ImgBtnDownFile_Click(object sender, ImageClickEventArgs e)
    {
       dFile();//调用用户自定义的dFile方法，实现
    }
//断点续传跳转页面（略）