发布于 2016-06-04 13:48:09 | 117 次阅读 | 评论: 0 | 来源: 网友投递
ASP.NET
ASP.NET 是.NET FrameWork的一部分，是一项微软公司的技术，是一种使嵌入网页中的脚本可由因特网服务器执行的服务器端脚本技术，它可以在通过HTTP请求文档时再在Web服务器上动态创建它们。 指 Active Server Pages（动态服务器页面） ，运行于 IIS（Internet Information Server 服务，是Windows开发的Web服务器）之中的程序 。
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="up3.aspx.cs" Inherits="up3" %>
<!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 runat="server">
<title></title>
<script language="javascript" type="text/javascript">
function addFile() {
var odiv = document.getElementById("MyFile");
var str = "<div><input name='File' type='file' /></div>";
odiv.insertAdjacentHTML("beforeEnd", str);
}
function resetFile() {
var odiv = document.getElementById("MyFile");
odiv.innerHTML = "<div><input name='File' type='file' /></div>";
}
</script>
</head>
<body>
<form id="form1" runat="server" enctype="multipart/form-data">
<input type="button" value="增加" onclick="addFile()" />
<input type="button" value="重置" onclick="resetFile()" />
<div id="MyFile">
<div><input name="File" type="file" /></div>
</div>
<asp:Button runat="server" Text="上传" ID="Button1" OnClick="Button1_Click" BorderColor="Desktop"
BorderWidth="1px" Height="20px" Width="60px"></asp:Button>
<div>
<asp:Label ID="Label1" runat="server"></asp:Label>
</div>
</form>
</body>
</html>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
public partial class up3 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
string upPath = "/up/"; //上传文件路径
int upLength = 5; //上传文件大小
string upFileExtName = "|bmp|jpg|jpeg|png|gif|";
HttpFileCollection _files = System.Web.HttpContext.Current.Request.Files;
int flag = _files.Count;
int flagN = 0;
int flagE = 0;
int flagEE = 0;
string flagEEstr = "";
for (int i = 0; i < _files.Count; i++)
{
string name = _files[i].FileName;
FileInfo fi = new FileInfo(name);
string oldfilename = fi.Name;
string scExtension = fi.Extension.ToLower();
string fileName = DateTime.Now.ToString("yyyyMMddhhmmssfff") + fi.Extension; // 文件名称，当前时间（yyyyMMddhhmmssfff）
string webFilePath = Server.MapPath(upPath) + fileName; // 服务器端文件路径
if (upFileExtName.IndexOf(scExtension.Replace(".", "")) == -1)
{
flagEE = flagEE + 1;
flagEEstr = flagEEstr + "第" + (i + 1) + "个文件，文件名[" + oldfilename + "]，文件类型不符合！";
continue;
}
if ((fi.Length / (1024 * 1024)) > upLength)
{
flagEE = flagEE + 1;
flagEEstr = flagEEstr + "第" + (i + 1) + "个文件，文件名[" + oldfilename + "]，超出" + upLength + "M大小限制！";
continue;
}
try
{
_files[i].SaveAs(webFilePath);
}
catch (Exception ex)
{
flagEE = flagEE + 1;
flagEEstr = flagEEstr + "第" + (i + 1) + "个文件，上传异常【"+ex.Message+"】";
}
}
Label1.Text = "总文件【" + flag + "】，上传成功文件【" + flagN + "】，异常文件【" + (flagE + flagEE) + "】【" + flagEEstr + "】";
}
}