asp.net 2的文件上传

在asp.net 2.0中，上传文件时变的比较方便了，因为有了fileupload控件，使用十分简单，
if (FileUpload1.HasFile)
try
{
FileUpload1.SaveAs("d:\\luceneData\\" FileUpload1.FileName);
Label1.Text = "File name: "
FileUpload1.PostedFile.FileName "<br>"
FileUpload1.PostedFile.ContentLength " kb<br>"
"Content type: "
FileUpload1.PostedFile.ContentType;
}
catch (Exception ex)
{
Label1.Text = "ERROR: " ex.Message.ToString();
}
else
{
Label1.Text = "You have not specified a file.";
}
还可以在web.config文件中，突破默认上传限制的4MB，比如
<httpRuntime
executionTimeout="110"
maxRequestLength="11000"
requestLengthDiskThreshold="80"
useFullyQualifiedRedirectUrl="false"
minFreeThreads="8"
minLocalRequestFreeThreads="4"
appRequestQueueLimit="5000"
enableKernelOutputCache="true"
enableVersionHeader="true"
requireRootedSaveAsPath="true"
enable="true"
shutdownTimeout="90"
delayNotificationTimeout="5"
waitChangeNotification="0"
maxWaitChangeNotification="0"
enableHeaderChecking="true"
sendCacheControlHeader="true"
apartmentThreading="false" />

设置maxRequestLenth属性，这里为11000KB，即11MB。

而对于多文件上传，也很简单，比如一个例子
string filepath = "d:\\luceneData\\";
HttpFileCollection uploadedFiles = Request.Files;

for (int i = 0; i < uploadedFiles.Count; i )
{
HttpPostedFile userPostedFile = uploadedFiles[i];

try
{
if (userPostedFile.ContentLength > 0)
{
Label1.Text = "<u>File #" (i 1)
"</u><br>";
Label1.Text = "File Content Type: "
userPostedFile.ContentType "<br>";
Label1.Text = "File Size: "
userPostedFile.ContentLength "kb<br>";
Label1.Text = "File Name: "
userPostedFile.FileName "<br>";

userPostedFile.SaveAs(filepath "\\"
System.IO.Path.GetFileName(userPostedFile.FileName));

Label1.Text = "Location where saved: "
filepath "\\"
System.IO.Path.GetFileName(userPostedFile.FileName)
"<p>";
}
}
catch (Exception Ex)
{
Label1.Text = "Error: <br>" Ex.Message;
}
}

}

http://www.cnblogs.com/jackyrong/archive/2006/09/26/514969.html