using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
//TransmitFile实现下载
protected void Button1_Click(object sender, EventArgs e)
{
Response.ContentType = "application/x-zip-compressed";
Response.AddHeader("Content-Disposition", "attachment;filename=z.zip");
string filename = Server.MapPath("DownLoad/z.zip");
Response.TransmitFile(filename);
}
//WriteFile实现下载
protected void Button2_Click(object sender, EventArgs e)
{
string fileName ="asd.txt";//客户端保存的文件名
string filePath=Server.MapPath("DownLoad/aaa.txt");//路径
FileInfo fileInfo = new FileInfo(filePath);
Response.Clear();
Response.ClearContent();
Response.ClearHeaders();
Response.AddHeader("Content-Disposition", "attachment;filename=" + fileName);
Response.AddHeader("Content-Length", fileInfo.Length.ToString());
Response.AddHeader("Content-Transfer-Encoding", "binary");
Response.ContentType = "application/octet-stream";
Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312");
Response.WriteFile(fileInfo.FullName);
Response.Flush();
Response.End();
}
//WriteFile分块下载
protected void Button3_Click(object sender, EventArgs e)
{
string fileName = "aaa.txt";//客户端保存的文件名
string filePath = Server.MapPath("DownLoad/aaa.txt");//路径
System.IO.FileInfo fileInfo = new System.IO.FileInfo(filePath);
if (fileInfo.Exists == true)
{
const long ChunkSize = 102400;//100K 每次读取文件，只读取100K，这样可以缓解服务器的压力
byte[] buffer = new byte[ChunkSize];
Response.Clear();
System.IO.FileStream iStream = System.IO.File.OpenRead(filePath);
long dataLengthToRead = iStream.Length;//获取下载的文件总大小
Response.ContentType = "application/octet-stream";
Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(fileName));
while (dataLengthToRead > 0 && Response.IsClientConnected)
{
int lengthRead = iStream.Read(buffer, 0, Convert.ToInt32(ChunkSize));//读取的大小
Response.OutputStream.Write(buffer, 0, lengthRead);
Response.Flush();
dataLengthToRead = dataLengthToRead - lengthRead;
}
Response.Close();
}
}
//流方式下载
protected void Button4_Click(object sender, EventArgs e)
{
string fileName = "aaa.txt";//客户端保存的文件名
string filePath = Server.MapPath("DownLoad/aaa.txt");//路径
//以字符流的形式下载文件
FileStream fs = new FileStream(filePath, FileMode.Open);
byte[] bytes = new byte[(int)fs.Length];
fs.Read(bytes, 0, bytes.Length);
fs.Close();
Response.ContentType = "application/octet-stream";
//通知浏览器下载文件而不是打开
Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8));
Response.BinaryWrite(bytes);
Response.Flush();
Response.End();
}
}
------ Solution ------------------------------------- -------
< br> ------ Solution ----------------------------------------- --- Oh, the cattle must be the top ( often see this avatar appear )
------ Solution ------------------- -------------------------
good collection
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collection , thank
----- - Solution --------------------------------------------
what situation ?
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look
Response.End (); cause many problems , prompting download box appears, the page can not jump
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export excel. Can only be derived by other methods , such as office excel component to export . There is no other way ? ? ? ? ( Guaranteed to save the download pop-up box )
------ Solution -------------------------------- ------------
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and , like this post it ? ? ?
C # file download four methods - Shen Wei - blog Park
I only had a title , huh
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exactly the same. . .
landlord and that Shen Wei is a man? ? ? ?
------ Solution ---------------------------------------- ----
how are the English way ?
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say what
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say what
------ Solution ------------ --------------------------------
applause
------ Solution --- -----------------------------------------
This is not the same , I made that time too early. You made this time is too late
------ Solution - -------------------------------------------
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------ Solution ------------------------------------------ -
read
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cattle top up a little rookie understand
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collection , thank you ~
------ Solution ---------- ----------------------------------
collection. . . .
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http://www.cnblogs.com/Veakey/archive/2012 / 08/17/2644123.html
This is the same kind enough to do
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collection , thank you ~
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collection .
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very powerful learning to landlord
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good collection
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Thank you ! Collection !
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learning , a collection !
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collection
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top one, thanks for sharing
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Niu I'd like to learn the C language are still in my state of light water ! ! !
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pro collection .
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If you get a file from a disk , or TransmitFile best
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four methods well, learn .
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amount did not understand ah.
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not the same download Well , , , , uh
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Why should web ------ For reference only ----------- ----------------------------
good collection
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good collection the
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hope to use when drawing
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good first collection
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Thank you to share . . .
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if more documents are recommended : ASP.Net bulk download solutions
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good.
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I have nothing to do noble stickers purpose, just an i-type i dad landlord posts dingqilai.
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just learning , is not very clear !
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Thank collection ! !
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Thank you to share !
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collection what
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collection under
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pro collection .
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learn it ~ !
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collection !
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learned last just made a pda wireless upload and download data
network conditions : Connecting wifi or 3G
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good way to learn, thanks for sharing !
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no points , and where to look to
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good complex ah do not understand
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good collection
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Thanks for sharing , collection .
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favorites !
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Thank you for sharing , a collection !
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this nice collection learned
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powerful powerful , collectibles , and learning to learn. .
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Thank you to share .
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HTTP if there would be better
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admire ah , terrible !
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learned
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collection ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
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study and collection of the
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Thank collection ! !
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top about
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