附件下载的时候txt格式文件下载问题
txt格式的附件下载，变成了下载当前网页。这是怎么回事？
[最优解释]
protected void Button3_Click(object sender, EventArgs e)
{
string fileName = "asd.txt";//客户端保存的文件名
string filePath = "E://aaa.txt"; //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();
}
FileStream fs = null;
try
{
String fileName = ViewState["Attchment"].ToString();
String filePath = Server.MapPath(@"~/UpLoad/Attchment/" + fileName);
//以字符流的形式下载
fs = new FileStream(filePath, FileMode.Open);
byte[] bytes = new byte[(int)fs.Length];
fs.Read(bytes, 0, bytes.Length);
Response.Clear();
Response.ClearHeaders();
Response.Buffer = false;
Response.ContentType = "application/octet-stream";
Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(Path.GetFileName(fileName), System.Text.Encoding.UTF8));
Response.BinaryWrite(bytes);
Response.Flush();
Response.End();
}
catch (Exception ex)
{
throw ex;
}
finally
{
fs.Close();
}
