js上传文件小问题

nitaiyoucala 2010-09-23 02:08:15

js上传文件时路径是C:\Date\a.jpg

怎么把a.jpg保存到项目的文件夹中？有没有c#中的SaveAs

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xiangaylian 2010-09-24

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[Quote=引用 5 楼 wwfgu00ing 的回复:]
C# code

<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1……
[/Quote]
答非所问！！

cloudgamer 2010-09-24

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js本身不能上传文件的啊

君望永远 2010-09-24

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保存文件是服务端语言的操作客户端JS顶多做些Check

wwfgu00ing 2010-09-24

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<%@ Page Language="C#" %>



<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >

<head>

    <title>FileUpload.SaveAs Method Example</title>

<script runat="server">



    protected void  UploadButton_Click(object sender, EventArgs e)

    {

        // Before attempting to save the file, verify

        // that the FileUpload control contains a file.

        if (FileUpload1.HasFile) 

          // Call a helper method routine to save the file.

          SaveFile(FileUpload1.PostedFile);

        else

          // Notify the user that a file was not uploaded.

          UploadStatusLabel.Text = "You did not specify a file to upload.";

    }



      void SaveFile(HttpPostedFile file)

      {            

        // Specify the path to save the uploaded file to.

        string savePath = "c:\\temp\\uploads\\";



        // Get the name of the file to upload.

        string fileName = FileUpload1.FileName;



        // Create the path and file name to check for duplicates.

        string pathToCheck = savePath + fileName;



        // Create a temporary file name to use for checking duplicates.

        string tempfileName = "";



        // Check to see if a file already exists with the

        // same name as the file to upload.        

        if (System.IO.File.Exists(pathToCheck)) 

        {

          int counter = 2;

          while (System.IO.File.Exists(pathToCheck))

          {

            // if a file with this name already exists,

            // prefix the filename with a number.

            tempfileName = counter.ToString() + fileName;

            pathToCheck = savePath + tempfileName;

            counter ++;

          }



          fileName = tempfileName;



          // Notify the user that the file name was changed.

          UploadStatusLabel.Text = "A file with the same name already exists." + 

              "<br />Your file was saved as " + fileName;

        }

        else

        {

          // Notify the user that the file was saved successfully.

          UploadStatusLabel.Text = "Your file was uploaded successfully.";

        }



        // Append the name of the file to upload to the path.

        savePath += fileName;



        // Call the SaveAs method to save the uploaded

        // file to the specified directory.

        FileUpload1.SaveAs(savePath);



      }



</script>



</head>

<body>



    <h3>FileUpload.SaveAs Method Example</h3>



    <form id="Form1" runat="server">



        <h4>Select a file to upload:</h4>



        <asp:FileUpload id="FileUpload1"                 

            runat="server">

        </asp:FileUpload>



        <br /><br />



        <asp:Button id="UploadButton" 

            Text="Upload file"

            OnClick="UploadButton_Click"

            runat="server">

        </asp:Button>      



        <hr />



        <asp:Label id="UploadStatusLabel"

            runat="server">

        </asp:Label>   



    </form>



</body>

</html>