同时上传多个文件

u010046044 2013-05-07 07:42:16

现在正在用asp.net做一个同时上传多个文件的程序

下面是HTML代码：



<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="上传多个文件11.WebForm1" %>



<!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 id="Head1" runat="server">

<title>同时上载多个文件</title>

  

<script language="javascript" type="text/javascript">

        function addOneFile() {

            var file = document.getElementsByName("file");

            if (file.length < 20) {  

                var filebutton = '<br /><input type="file" size="50" name="file" />';

                document.getElementById('pFileList').insertAdjacentHTML("beforeEnd", filebutton);

            }

        }

</script>

</head>





<body>

  

				<form id="form1" runat="server">

  

				<p id="pFileList"><input type="file" size="50" name="file" /></p>

				<input type="button" value='增加一个文件' onclick="addOneFile()" />

                

                <asp:Button ID="ButtonUpload" runat="server" Text="上传" 

                    onclick="ButtonUpload_Click" />

                </form>          



</body>

</html>

下面是c#代码：



using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;



namespace 上传多个文件11

{

    public partial class WebForm1 : System.Web.UI.Page

    {





        protected void Page_Load(object sender, EventArgs e)

        {



        }



        protected void ButtonUpload_Click(object sender, EventArgs e)

        {

            HttpFileCollection files = HttpContext.Current.Request.Files;

            if (files == null)

            {

                return;

            }



            try

            {

                for (int i = 0; i < files.Count; i++)

                {

                    HttpPostedFile postFile = files[i];

                    if (postFile == null)

                    {

                        continue;

                    }



                    string fileName = postFile.FileName;

                    string folderPath = 

                        Server.MapPath("Attachments" + "\\" + DateTime.Now.ToString("yyyy-MM"));

                    string fullPath = folderPath + fileName ;



                    if (System.IO.Directory.Exists(folderPath) == false)

                    {

                        System.IO.Directory.CreateDirectory(folderPath);

                    }

                    postFile.SaveAs(fullPath);

                }

            }

            catch (Exception ex)

            {

                Response.Write(ex.Message);

            }

        }













    }

}