ASP.NET文件下载函数使用是什么情况呢？在你的Page_Load中添加这样的代码:
Page.Response.Clear();
bool success = ResponseFile(Page.Request, Page.Response, "目的文件名称", @"源文件路径", 1024000);
if (!success) Response.Write("下载文件出错！"); Page.Response.End();
ASP.NET文件下载函数代码为:
public static bool ResponseFile(HttpRequest _Request,HttpResponse _Response,string _fileName,string _fullPath, long _speed) {
try
{
FileStream myFile = new FileStream(_fullPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
BinaryReader br = new BinaryReader(myFile);
try
{
_Response.AddHeader("Accept-Ranges", "bytes"
);
_Response.Buffer = false;
long fileLength = myFile.Length;
long startBytes = 0; double pack = 10240;
//10K bytes
//int sleep = 200;
//每秒5次 即5*10K bytes每秒 int sleep = (int)Math.Floor(1000 * pack / _speed) + 1;
if (_Request.Headers["Range"] != null)
{
_Response.StatusCode = 206;
string[] range = _Request.Headers["Range"].Split(new char[] {'=', '-'});
startBytes = Convert.ToInt64(range[1]);
}
_Response.AddHeader("Content-Length", (fileLength - startBytes).ToString());
if (startBytes != 0) {
//Response.AddHeader("Content-Range", string.Format(" bytes {0}-{1}/{2}", startBytes, fileLength-1, fileLength));
}
_Response.AddHeader("Connection", "Keep-Alive");
_Response.ContentType = "application/octet-stream";
_Response.AddHeader("Content-Disposition","attachment; filename=" + HttpUtility.UrlEncode(_fileName,System.Text.Encoding.UTF8) ); br.BaseStream.Seek(startBytes, SeekOrigin.Begin);
int maxCount = (int) Math.Floor((fileLength - startBytes) / pack) + 1;
for (int i = 0; i < maxCount; i++) { if (_Response.IsClientConnected) { _Response.BinaryWrite(br.ReadBytes(int.Parse(pack.ToString()))); Thread.Sleep(sleep);
} else { i=maxCount;
}
} }
catch
{
return false;
}
finally
{
br.Close();
myFile.Close();
}
}
catch
{
return false;
}
return true;
}
这样就实现了文件下
香港那边公司的市场部开会时要求我们这边实现一个定时发送邮件的功能，即在每天下午5点左右定时把今天已通过三审的订单信息发给市场部的经理，告诉他哪些订单已经通过了终审。平时只知道如何用.net发送邮件，但不知如何定时发送邮件。于是百度了一下，总结起来有以下那么三种：
（1）做一个winform 来定时发邮件。然后通过 ......
