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asp.net 2的文件上传

 2006-09-27 17:15:11 来源:WEB开发网   
核心提示:在asp.net 2.0中,上传文件时变的比较方便了,asp.net 2的文件上传,因为有了fileupload控件,使用十分简单,即11MB,而对于多文件上传,if (FileUpload1.HasFile) try { FileUpload1.SaveAs("d:\\luceneData\\&quo

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

Tags:asp net 文件

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