ASP.NET FileUpload以及文件下载和Repeater控件显示

时间：2022-08-28 10:37:41

WebForm1.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="文件夹上传以及Repeater.WebForm1" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <div>
            <asp:FileUpload ID="FileUpload1" runat="server" />
            <asp:Button runat="server" ID="btnUpload" Text="上传" OnClick="btnUpload_Click" />
        </div>
        <div>
            文件下载：<br />
            <asp:Repeater runat="server" ID="repeater1" >
                <HeaderTemplate>
                    <table border="1">
                        <tr>
                            <td>文件顺序</td><td>文件下载</td>
                        </tr>
                </HeaderTemplate>
                <ItemTemplate>
                    <tr>
                        <td><%# Container.ItemIndex+1 %></td>
                        <td><asp:LinkButton runat="server" ID="linkbtnDownloda" Text='<%# Eval("filenames") %>'  CommandArgument='<%#Eval("filepath") %>' OnCommand="linkbtnDownloda_Command"/> </td>
                    </tr>
                </ItemTemplate>
                <FooterTemplate>
                    </table>
                </FooterTemplate>
            </asp:Repeater>

        </div>
    </form>
</body>
</html>
WebForm1.aspx.cs 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

using System.IO;
using Model;
using BLL;
namespace 文件夹上传以及Repeater
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                Bind();
            }
        }
        public void Bind()
        {
            this.repeater1.DataSource = BLL.FileManager.selectAllFile().Tables[0];
            this.repeater1.DataBind();
        }
        ///
        protected void btnUpload_Click(object sender, EventArgs e)
        {
            string fullfilename=this.FileUpload1.PostedFile.FileName;
            string filename = fullfilename.Substring(fullfilename.LastIndexOf("\\") + 1);
            string filetype = fullfilename.Substring(fullfilename.LastIndexOf(".") + 1);
            Response.Write("文件名:"+filename+",类型："+filetype);
            //////
            string savepath = Server.MapPath("~\\Files\\" + filename);
            this.FileUpload1.SaveAs(savepath);
            //
            Model.FileInfo fi = new Model.FileInfo();
            fi.Filepath = "~\\Files\\"+filename;
            fi.Filenames = filename;
            BLL.FileManager.uploadFile(fi);
            Bind();
        }

        protected void linkbtnDownloda_Command(object sender, CommandEventArgs e)
        {
            string uri = e.CommandArgument.ToString();
            string filename = uri.Substring(uri.LastIndexOf("\\") + 1);
            //Response.Write(uri);
            FileStream fs = new FileStream(Server.MapPath(uri), FileMode.Open);
            byte[] bytes = new byte[(int)fs.Length];
            fs.Read(bytes, 0, (int)fs.Length);
            //用完记得关闭字符流操作
            fs.Close();
            //设置当前字符流在HTTP上输出的格式为stream字符流格式，固定写法
            Response.ContentType = "application/octet-stream";
            //通知浏览器进行下载操作,并保存当前下载的文件名到本地
            Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(filename, System.Text.Encoding.UTF8));
            //Response.AddHeader("Content-Disposition", "attachment; filename=" + filename);

            //将HTTP中的字符流做写入缓冲操作
            Response.BinaryWrite(bytes);
            //将当前HTTP缓冲中保存的字符流写入到本地
            Response.Flush();
            //写入完成后结束整个操作
            Response.End();

        }
    }
}

ASP.NET FileUpload以及文件下载和Repeater控件显示

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