這篇文章主要介紹了Asp.net獲取服務(wù)器指定文件夾目錄文件并提供下載的方法,涉及使用http協(xié)議操作文件的技巧,需要的朋友可以參考下

本文實例講述了Asp.net獲取服務(wù)器指定文件夾目錄文件并提供下載的方法。分享給大家供大家參考。具體實現(xiàn)方法如下：

代碼如下:

string dirPath = HttpContext.Current.Server.MapPath("uploads/");

if (Directory.Exists(dirPath))

{

//獲得目錄信息

DirectoryInfo dir = new DirectoryInfo(dirPath);

//獲得目錄文件列表

FileInfo[] files = dir.GetFiles("*.*");

string[] fileNames = new string[files.Length];

//臨時數(shù)據(jù)表

DataTable dt = new DataTable();

dt.Columns.Add("FileName");

foreach (FileInfo fileInfo in files)

{

DataRow dr = dt.NewRow();

dr["FileName"] = fileInfo.Name;

dt.Rows.Add(dr);

}

Repeater1.DataSource = dt;

Repeater1.DataBind();

}

if (e.CommandName == "down")

{

try

{

string DownloadFileName = "~/uploads/" + e.CommandArgument.ToString();//文件路徑

string filepath = Server.MapPath(DownloadFileName);

string filename = Path.GetFileName(filepath);

FileInfo file = new FileInfo(filepath);

Response.Clear();

Response.ContentType = "application/octet-stream";

Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(filename, System.Text.Encoding.UTF8));

Response.AddHeader("Content-length", file.Length.ToString());

Response.Flush();

Response.WriteFile(filepath);

}

catch

{

Response.Write("<script>alert('沒有找到下載的源文件')</script>");

}

}

希望本文所述對大家的asp.net程序設(shè)計有所幫助。

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