asp.net文件上传

1.html

</head>

<body>

<div>

单文件上传

<br />

<br />

<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button" />

<br />

<asp:Label ID="LblMsg" runat="server" Height="256px" Width="100%"></asp:Label>

</div>

</form>

</body>

</html>

2.cs

using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

public partial class other_ShangChuan1 : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{ }

}

protected void Button1_Click(object sender, EventArgs e)

{

if (File1.PostedFile.FileName != "")

{

//上传文件的绝对路径如:C:\12.jpg

string sFile = File1.PostedFile.FileName;

//获取文件全名　例：12.jpg

sFile = sFile.Substring(sFile.LastIndexOf("\\") + 1);

//获取后缀名　例　.jpg

sFile = sFile.Substring(sFile.LastIndexOf("."));

//为了防止重名，获得日期为文件名年月日时分秒毫秒

string datatime = System.DateTime.Now.ToString("yyyMMddHHmmssffff");

//上传后文件的新名

sFile = datatime + sFile;

//AppDomain.CurrentDomain.BaseDirectory.ToString() 获取此项目的根目录

//sPath 获取上传后的路径

string sPath = AppDomain.CurrentDomain.BaseDirectory.ToString() + "uploads\\" + sFile;

//上传文件

File1.PostedFile.SaveAs(sPath);

this.LblMsg.Text = "文件已经上传到：" + sPath;

this.LblMsg.Text += "<br/>上传文件名称：" + this.File1.PostedFile.FileName;

this.LblMsg.Text += "<br/>上传文件类型：" + this.File1.PostedFile.ContentType;

this.LblMsg.Text += "<br/>上传文件大小：" + this.File1.PostedFile.ContentLength + "Byte";

}

else

{

this.LblMsg.Text = "请选择需要上传的文件？";

}