Asp.net(C#)多文件上傳

2019-11-18 17:26:03

字體：大中小

來源：轉載

供稿：網友

FileUp.aspx 頁面

1<%@ Page language="c#" Codebehind="FileUp.aspx.cs" AutoEventWireup="false" Inherits="TestCenter.FileUp" %>
2<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
3<HTML>
4 <HEAD>
5    <title>多文件上傳</title>
6    <script language="javaScript">
7    function addFile()
8    {
9     var str = '<INPUT type="file" size="50" NAME="File">'
10     document.getElementById('MyFile').insertAdjacentHTML("beforeEnd",str)
11    }
12    </script>
13 </HEAD>
14 <body>
15    <form id="form1" method="post" runat="server" enctype="multipart/form-data">
16      <div align="center">
17        <h3>多文件上傳</h3>
18        <P id="MyFile"><INPUT type="file" size="50" NAME="File"></P>
19        <P>
20          <input type="button" value="增加(Add)" onclick="addFile()">
21          <input onclick="this.form.reset()" type="button" value="重置(ReSet)">
22          <asp:Button Runat="server" Text="開始上傳" ID="UploadButton"></asp:Button>
23        </P>
24        <P>
25        <asp:Label id="strStatus" runat="server" Font-Names="宋體" Font-Bold="True" Font-Size="9pt"
26          Width="500px" BorderStyle="None" BorderColor="White"></asp:Label>
27        </P>
28      </div>
29    </form>
30 </body>
31</HTML>
32

//****************************************************************
//////FileUp.aspx.cs

1using System;
2using System.Collections;
3using System.ComponentModel;
4using System.Data;
5using System.Drawing;
6using System.Web;
7using System.Web.sessionState;
8using System.Web.UI;
9using System.Web.UI.WebControls;
10using System.Web.UI.HtmlControls;
11
12namespace TestCenter
13{
14 /**//// <summary>
15 /// 實現多文件上傳
16 /// </summary>
17 public class FileUp: System.Web.UI.Page
18 {
19    PRotected System.Web.UI.WebControls.Button UploadButton;
20    protected System.Web.UI.WebControls.Label strStatus;
21
22    private void Page_Load(object sender, System.EventArgs e)
23    {
24            if (this.IsPostBack) this.SaveImages();
25    }
26
27    private Boolean SaveImages()
28    {
29      /**////'遍歷File表單元素
30      HttpFileCollection files = HttpContext.Current.Request.Files;
31
32      /**//// '狀態信息
33      System.Text.StringBuilder strMsg = new System.Text.StringBuilder();
34      strMsg.Append("上傳的文件分別是：<hr color=red>");
35      try
36      {
37        for(int iFile = 0; iFile < files.Count; iFile++)
38        {
39          /**////'檢查文件擴展名字
40          HttpPostedFile postedFile = files[iFile];
41          string fileName, fileExtension;
42          fileName = System.IO.Path.GetFileName(postedFile.FileName);
43          if (fileName != "")
44          {
45            fileExtension = System.IO.Path.GetExtension(fileName);
46            strMsg.Append("上傳的文件類型：" + postedFile.ContentType.ToString() + "<br>");
47            strMsg.Append("客戶端文件地址：" + postedFile.FileName + "<br>");
48            strMsg.Append("上傳文件的文件名：" + fileName + "<br>");
49            strMsg.Append("上傳文件的擴展名：" + fileExtension + "<br><hr>");
50            /**////'可根據擴展名字的不同保存到不同的文件夾
51            ///注意：可能要修改你的文件夾的匿名寫入權限。
52            postedFile.SaveAs(System.Web.HttpContext.Current.Request.MapPath("images/") + fileName);
53          }
54        }
55        strStatus.Text = strMsg.ToString();
56        return true;
57      }
58      catch(System.Exception Ex)
59      {
60        strStatus.Text = Ex.Message;
61        return false;
62      }
63    }
64