生产服务器上的文件下载问题

本文关键字：文件下载 问题 服务器 | 更新日期: 2023-09-27 18:14:42

我使用以下代码从服务器下载文件，该文件在每个浏览器的开发和QA服务器中工作良好，但当它进入生产时出现错误。错误是System.IO。目录notfoundexception路径部分不正确

使用代码:

protected void lnkDownload_Click(object sender, eventArgs e)
{            
            LinkButton lnkbtn = sender as LinkButton;
            GridViewRow gvrow = lnkbtn.NamingContainer as GridViewRow;
            string filePath = ((HtmlInputHidden)gvFilesDetails.Rows[gvrow.RowIndex].FindControl("hdnFileLocation")).Value.ToString();

            Response.AddHeader("Content-Disposition", "attachment;filename='"" + filePath + "'"");
            Response.TransmitFile(Server.MapPath("~/" + filePath));
            Response.End();
}

这个问题似乎是奇怪的和痛苦的调试，因为它只发生在生产服务器。

生产服务器上的文件下载问题

服务器。MapPath将获得与虚拟路径相对应的物理路径。请交叉检查您的应用程序服务器(生产)。

这是我在生产中使用的代码，对我来说很好，你可以看看它。

   protected void imgDownload_click(object sender, ImageClickEventArgs e)
{
    ImageButton imgbtn = (ImageButton)sender;
    GridViewRow row = (GridViewRow)imgbtn.NamingContainer;
     string strHFFileDetails =((HiddenField )row.FindControl("HFFileID")) .Value.ToString();
    string[] strFileDetails = strHFFileDetails.Split('?');
    string FilePath = strFileDetails[1].ToString();
    string filename = gvFiles.Rows[row.RowIndex].Cells[0].Text.ToString();
    string path = @FilePath;
    System.IO.FileInfo file = new System.IO.FileInfo(path);
    if (file.Exists)
    {
        Response.Clear();
        Response.AppendHeader("Content-Disposition:", "attachment; filename=" + file.Name);
        Response.AppendHeader("Content-Length", file.Length.ToString());
        Response.ContentType = "application/octet-stream";
        Response.TransmitFile(file.FullName);
        Response.End();
    }
}

@Tapas Mahata试试这个，

在web.config中定义你的web URL，

<appSettings>
     <add key="FileURL" value="http:''www.WebSiteName.com'"/>
<appSettings>
在aspx.cs 

protected void lnkDownload_Click(object sender, eventArgs e)
{
   LinkButton lnkbtn = sender as LinkButton;
        GridViewRow gvrow = lnkbtn.NamingContainer as GridViewRow;
        string filePath = ((HtmlInputHidden)gvFilesDetails.Rows[gvrow.RowIndex].FindControl("hdnFileLocation")).Value.ToString();
        string fileURL = ConfigurationManager.AppSettings["FileURL"].ToString();
        Response.AddHeader("Content-Disposition", "attachment;filename='"" + filePath + "'"");
        Response.TransmitFile(fileURL+filePath);
        Response.End();
}

@Tapas Mahata试试这个，

aspx页面:

<asp:GridView ID="gv" OnRowDataBound="gv_RowDataBound" AutoGenerateColumns="False" runat="server">
     <Columns>
         <asp:HyperLinkField Target="_blank" DataNavigateUrlFields="URL" DataTextField="URL" HeaderText="Document Path" />
     </Columns>
</asp:GridView>

aspx.cs Page:

private string docPath = "";
protected void Page_Load(object sender, EventArgs e)
{
     docPath = ResolveClientUrl("~/Uploads/");
}
protected void gv_RowDataBound(object sender, GridViewRowEventArgs e)
{
    HyperLink FileHyperlink = null;
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
       FileHyperlink = (HyperLink)e.Row.Cells[0].Controls[0];
       string fileName = FileHyperlink.Text.Replace("'", "''");
       FileHyperlink.NavigateUrl = docPath + fileName;
    }
}
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