html:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm2.aspx.cs" Inherits="UPFile.WebForm2" %>
<!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>
</head>
<body>
<form id="form1" runat="server" method="post" enctype="multipart/form-data" action="WebForm2.aspx">
<div>
<input id="File1" type="file" name="File1"/>
<input type="submit" />
</div>
</form>
</body>
</html>
C#:
protected void Page_Load(object sender, EventArgs e)
{
if (Page.IsPostBack)
{
System.Web.HttpFileCollection files = Request.Files;
for (int fileCount = 0; fileCount < files.Count; fileCount++)
{
System.Web.HttpPostedFile postedfile = files[fileCount];
string fileName = System.IO.Path.GetFileName(postedfile.FileName);
if (!String.IsNullOrEmpty(fileName))
{
string fileExtension = System.IO.Path.GetExtension(fileName); //獲取文件類型
//上傳目錄
string directory = Server.MapPath("/UpLoadFiles/");
//文件全路徑
string path = directory + fileName;
//判斷目錄是否存在
if (!Directory.Exists(directory))
{
Directory.CreateDirectory(directory);
}
//文件存在就刪除文件
if (File.Exists(path))
{
File.Delete(path);
}
//上傳到服務器的路徑
postedfile.SaveAs(path);
}
}
}
else
{
Response.Write("0");
}
}
