多文件上传与简单操作文件上传实例（文件上传，自动重命名，自动添加文件夹)

来源：互联网发布：周小平其人知乎编辑：程序博客网时间：2024/06/05 17:50

一.多文件上传【客户端处理脚本的例子】

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<HTML>

<HEAD>

function mCreateFile(obj){

var eF

var mName

mFileName.innerHTML=""

if (obj.id=="File") {

for (i=0;i<mFile.children.length-1;i++)

{

if (mFile.children[i].value=="") {

mFile.removeChild(mFile.children[i])

}

else

{

mName=mFile.children[i].value.split("")

mFileName.innerHTML+="<div id=NameDetail title='"+mName[mName.length-1]+"'>"+mName[mName.length-1]+"</div>"

}

mstatus.innerHTML="总共有 <b>"+(mFile.children.length-1)+"</b> 个文件等待上传"

}

if (obj.id=="File_New") {

eF=document.createElement('<input type="file" name="File" size="23" id=File_New onpropertychange="mCreateFile(this)">')

mFile.appendChild(eF)

obj.id="File"

}

</script>

<style>

table{

FILTER: progid:DXImageTransform.Microsoft.Shadow(direction=135,color=#999999,strength=3);

}

input{

border:1px soild #000000;

font-family:Verdana,Arial,宋体;

font-size:12px;

padding:2px;

}

#mTD{

LINE-HEIGHT: 24px;

}

#mFile{

width:203px;

float:left;

#mFileName{

float:right;

width:182px;

}

#NameDetail{

overflow:hidden;

width:176px;

color:#000000;

font-family:Verdana,Arial,宋体;

font-size:12px;

cursor:default;

height:22px;

}

#mstatus{

font-size:12px;

color:#ff0000;

}

</style>

</head>

<body>

<tr>

</tr>

<tr>

<div id=mstatus>总共有 <b>0</b> 个文件等待上传</div>

</td>

</tr>

</table>

</div>

</form>

</body>

</html>后台代码：CS

二.简单操作文件上传实例（文件上传，自动重命名，自动添加文件夹）

前台代码：ASPX

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="Album_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

</head>

<body>

<div>

<asp:FileUpload ID="FileUpload1" runat="server" />

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

<asp:Image ID="Image1" runat="server" Height="100px" /><br />

<asp:Label ID="Label1" runat="server"></asp:Label></div>

</form>

</body>

</html>

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 Album_Default : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

Image1.Visible = false;

}

protected void Button1_Click(object sender, EventArgs e)

{

string filename = FileUpload1.FileName;

string size = FileUpload1.PostedFile.ContentLength.ToString();

string[] myfile = filename.Split('.');

string dotname = myfile[myfile.Length - 1].ToString().ToLower();

string type = FileUpload1.PostedFile.ContentType;

string type2 = filename.Substring(filename.LastIndexOf(".") + 1);

string imgpath = Server.MapPath("~/Upimg") + "/";

string filepath = Server.MapPath("~/Upfile") + "/";

string folder = DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString() + DateTime.Now.Day.ToString();

if (type2 == "jpg" || type2 == "gif")

{

Image1.Visible = true;

if (!System.IO.Directory.Exists(imgpath + folder))

{//自动生成文件夹

System.IO.Directory.CreateDirectory(imgpath + folder);

}

Random myrdn = new Random();//产生随机数

//日期，时间，随机数和后缀名

string newfilename = DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString() + DateTime.Now.Day.ToString() + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + myrdn.Next(10000).ToString() + "." + dotname;

FileUpload1.SaveAs(imgpath + folder + "/" + newfilename);

string wpath = "~/Upimg/" + folder + "/" + newfilename;

Image1.ImageUrl = wpath;

//FileUpload1.SaveAs(ipath);

Label1.Text = "原始文件名" + filename + "<br>存储文件名：" + newfilename + "<br>文件大小" + size + "<br>文件类型" + type2 + "<br>文件后缀" + type + "<br>文件虚拟路径" + wpath;

}

else

{

if (!System.IO.Directory.Exists(filepath + folder))

{//自动生成文件夹

System.IO.Directory.CreateDirectory(filepath + folder);

}

Random myrdn = new Random();//产生随机数

//日期，时间，随机数和后缀名

Image1.Visible = false;

string wpath = "Upfile/" + folder + newfilename;

FileUpload1.SaveAs(filepath + folder + "/" + newfilename);

}