protected void Page_Load(object sender, EventArgs e)
{
username = dosomething(this.Request["username"]);
password = dosomething(this.Request["password"]);
filename = this.Request["filename"];
filename = HttpUtility.UrlDecode(filename);
//password = HttpUtility.UrlDecode(password);
//string bb = HttpUtility.UrlDecode("");
//username = "******";
//password = "******";
//string aa = HttpUtility.UrlEncode(password);
//string cc = HttpUtility.UrlDecode(aa);
//filename = "UpLoadFiles\\初始化公司\\OA\\Archives\\在线通讯录20101227(1).xls";
T_SYS_USER user = new T_SYS_USER();
user = perm.UserLogin(username, password);
//if()
if (user != null)
{
System.IO.Stream iStream = null;
string filepath = Server.MapPath(filename);
string files = System.IO.Path.GetFileName(filepath);
long dataToRead;
int length;
byte[] buffer = new Byte[300000];
System.IO.FileInfo file = new System.IO.FileInfo(filepath);
try
{
iStream = new System.IO.FileStream(filepath, System.IO.FileMode.Open,
System.IO.FileAccess.Read, System.IO.FileShare.Read);
// Total bytes to read:
dataToRead = iStream.Length;
Response.ContentType = "application/octet-stream";
Response.Charset = "UTF-8";
Response.AddHeader("Content-Disposition", "attachment; filename=" + System.Web.HttpUtility.UrlEncode(file.Name, System.Text.Encoding.UTF8));
// Read the bytes.
while (dataToRead > 0)
{
// Verify that the client is connected.
if (Response.IsClientConnected)
{
// Read the data in buffer.
length = iStream.Read(buffer, 0, 300000);
// Write the data to the current output stream.
Response.OutputStream.Write(buffer, 0, length);
// Flush the data to the HTML output.
Response.Flush();
buffer = new Byte[300000];
dataToRead = dataToRead - length;
}
else
{
//prevent infinite loop if user disconnects
dataToRead = -1;
}
}
Response.Clear();
Response.End();
}
catch (Exception ex)
{
// Trap the error, if any.
Response.Write("Error : " + ex.Message);
Response.Clear();
Response.End();
}
finally
{
if (iStream != null)
{
//Close the file.
iStream.Close();
}
Response.Clear();
Response.End();
}
}
else
{
string StrScript;
string strMsg = "你无权限下载，请联系管理员！";
StrScript = ("<script language=javascript>");
StrScript += ("alert('" + strMsg + "');");
//StrScript += ("window.location='" + URL + "';");
StrScript += ("</script>");
System.Web.HttpContext.Current.Response.Write(StrScript);
}
}
