教研室

标题: HttpFileCollection 实现多文件上传 [打印本页]

作者: 教研室 时间: 2012-3-15 17:25:09 标题: HttpFileCollection 实现多文件上传

1 前台代码
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="upload.aspx.cs" Inherits="upload" %>
<!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>批量上传</title>
<script src="jquery/jquery.js" type="text/javascript"></script>
<script type="text/javascript">
      var count = 1; //上传组件个数
      $(function () {
         //添加上传组件
         $("#btnAdd").click(function () {
            //             if ($("#DivUploads").find(":button").length >= 7) {
            //                   alert('最多只能添加八个上传组件！');
            //                   return;
            //             }
            var strHtml = '<span><input type="file" name="fileUpload" runat="server" />';
            strHtml += "<input type='button' onclick='delUploadBtn(" + count + ")' value='删除'/></span>";
            $("#DivUploads").append(strHtml);
            count++;
         });
      });
      //删除上传组件
      function delUploadBtn(index) {
         $("#DivUploads").find(":button").each(function () {
            var text = "" + $(this).attr("onclick");
            if (text.indexOf("delUploadBtn(" + index + ")") != -1) {
                  $(this).parent().remove();
            }
         });
      }
</script>
</head>
<body>
<form id="form1" runat="server">
<asp:FileUpload ID="FileUpload1" runat="server" />

<%-- <asp:LinkButton ID="btnAdd" runat="server">添加</asp:LinkButton>--%>
<input type="button" id="btnAdd" value="添加" />
<div id="DivUploads" style="border: 0px solid; width: 300px; height: auto;">
</div>
<asp:Button ID="btnUpload" runat="server" Text="上传" />
</form>
</body>
</html>

2 后台代码
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class upload : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
/// <summary>
/// 上传处理
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void btnUpload_Click(object sender, EventArgs e)
{
      string filepath = Request.Form["fileUpload"];
   //上传文件保存路径
      string savePath = Server.MapPath("UploadFiles") + "\\";
      //提供对客户端上载文件的访问
      HttpFileCollection uploadFiles = System.Web.HttpContext.Current.Request.Files;
      try
      {
         for (int i = 0; i < uploadFiles.Count; i++)
         {
            System.Web.HttpPostedFile postedFile = uploadFiles;
            string fileName = postedFile.FileName;//完整的路径
            fileName = System.IO.Path.GetFileName(postedFile.FileName); //获取到名称
            string fileExtension = System.IO.Path.GetExtension(fileName);//文件的扩展名称
            string type = fileName.Substring(fileName.LastIndexOf(".") + 1); //类型
            if (uploadFiles.ContentLength > 0)
                  uploadFiles.SaveAs(savePath + fileName);
         }
      }
      catch (System.Exception Ex)
      {
         Response.Write(Ex);
      }
}
}

欢迎光临教研室 (http://jiaoyanshi.com/)