asp.net文件上传（支持多文件上传）--源码--调试成功

前台文件

<%@ 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>
    <title>多文件上传</title>

    <script language="JavaScript">
    function addFile()
    {
    var str = '<INPUT type="file" size="50" NAME="File">'
    document.getElementById('MyFile').insertAdjacentHTML("beforeEnd",str)
    }
    </script>

</head>
<body>
    <form id="form1" method="post" runat="server" enctype="multipart/form-data">
    <div align="center">
        <h3>
            文件上传</h3>
        <p id="MyFile">
            <input type="file" size="50" name="File"></p>
        <p>
            <input type="button" value="增加(Add)" onclick="addFile()">
            <input onclick="this.form.reset()" type="button" value="重置(ReSet)">
            <asp:Button runat="server" Text="开始上传" ID="UploadButton"
                onclick="UploadButton_Click"></asp:Button>
        </p>
        <p>
            <asp:Label ID="strStatus" runat="server" Font-Names="宋体" Font-Bold="True" Font-Size="9pt"
                Width="500px" BorderStyle="None" BorderColor="White"></asp:Label>
        </p>
    </div>
    </form>
</body>


</html>

    

后台文件

 private void Page_Load(object sender, System.EventArgs e)
        {
            /// 在此处放置用户代码以初始化页面
            //if (this.IsPostBack)
            //    this.SaveImages();
            if (Session["userName"]== "" || Session["fodderName"] == null)
            {
                Response.Write("<script>alert('请先登录!');location.href='login.aspx';</script>");
            }
        }

        private Boolean SaveImages()
        {
            ///'遍历File表单元素
            HttpFileCollection files = HttpContext.Current.Request.Files;

            /// '状态信息
            System.Text.StringBuilder strMsg = new System.Text.StringBuilder();
            strMsg.Append("上传的文件分别是：<hr color=red>");
            try
            {
                for (int iFile = 0; iFile < files.Count; iFile++)
                {
                    ///'检查文件扩展名字
                    HttpPostedFile postedFile = files[iFile];
                    string fileName, fileExtension;
                    fileName = System.IO.Path.GetFileName(postedFile.FileName);
                    if (fileName != "")
                    {
                        fileExtension = System.IO.Path.GetExtension(fileName);
                        strMsg.Append("上传的文件类型：" + postedFile.ContentType.ToString() + "<br>");
                        strMsg.Append("客户端文件地址：" + postedFile.FileName + "<br>");
                        strMsg.Append("上传文件的文件名：" + fileName + "<br>");
                        strMsg.Append("上传文件的扩展名：" + fileExtension + "<br><hr>");
                        postedFile.SaveAs(System.Web.HttpContext.Current.Request.MapPath("../upload/"+fileName));
            
                    }
                }
                strStatus.Text = strMsg.ToString();
                return true;
            }
            catch (System.Exception Ex)
            {
                strStatus.Text = Ex.Message;
                return false;
            }
        }
        #region Web 窗体设计器生成的代码
        override protected void OnInit(EventArgs e)
        {
            //
            // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
            //
            InitializeComponent();
            base.OnInit(e);
        }

        /// <summary>
        /// 设计器支持所需的方法 - 不要使用代码编辑器修改
        /// 此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.ID = "Upload";
            this.Load += new System.EventHandler(this.Page_Load);

        }
        #endregion

 

 


        protected void UploadButton_Click(object sender, EventArgs e)
        {
            SaveImages();
        }

posted @ 2009-03-05 17:22  perfectMan  阅读(359)  评论(0)    收藏  举报