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asp.net(c#)多文件上传
fileup.aspx 页面
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>多文件上传</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>多文件上传</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="开始上传" id="uploadbutton"></asp:button>
23 </p>
24 <p>
25 <asp:label id="strstatus" runat="server" font-names="宋体" 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 /// 实现多文件上传
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 /**////'遍历file表单元素
30 httpfilecollection files = httpcontext.current.request.files;
31
32 /**//// '状态信息
33 system.text.stringbuilder strmsg = new system.text.stringbuilder();
34 strmsg.append("上传的文件分别是：<hr color=red>");
35 try
36 {
37 for(int ifile = 0; ifile < files.count; ifile++)
38 {
39 /**////'检查文件扩展名字
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("上传的文件类型：" + postedfile.contenttype.tostring() + "<br>");
47 strmsg.append("客户端文件地址：" + postedfile.filename + "<br>");
48 strmsg.append("上传文件的文件名：" + filename + "<br>");
49 strmsg.append("上传文件的扩展名：" + fileextension + "<br><hr>");
50 /**////'可根据扩展名字的不同保存到不同的文件夹
51 ///注意：可能要修改你的文件夹的匿名写入权限。
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
