jquery批量上传图⽚实现代码
只限于IE,⽕狐下不能使⽤，因为⽕狐下得不到本地上传的图⽚路径
前台: upload.htm
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="/1999/xhtml">
<head runat="server">
<title>upload</title>
<link href="upload.css" rel="Stylesheet" />
</head>
<body>
<form>
<ul>
<li>
<button id="SubUpload" οnclick="TSubmitUploadImageFile();return false;">
确定上传</button>
<button id="CancelUpload" class="ManagerButton" οnclick="(-1);">
取消</button>
<button id="AddUpload" class="ManagerButton" οnclick="TAddFileUpload();return false;">
增加</button>
</li>
</ul>
<ul id="loadimage">
<li>
<div class="imagelabel">
图⽚1:</div>
<div class="imagepath">
<input name="" size="45" id="uploadImg1" type="file" /></div>
<div class="loadinfo">
<span id="uploadImgState1"></span>
</div>
</li>
</ul>
</form>
</body>
</html>
<script type="text/javascript" src="wwwblogs/JS/jquery-1.3.2-vsdoc.js"></script>
<script type="text/javascript">
var TfileUploadNum = 1; //记录图⽚选择框个数
var Tnum = 1; //ajax上传图⽚时索引
//增加上传按钮
function TAddFileUpload() {
var idnum = TfileUploadNum + 1;
var str = "<li>";
str += "<div class='imagelabel'>图⽚" + idnum + ":</div>";
str += "<div class='imagepath'><input name='' size='45' id='uploadImg" + idnum + "' type='file' /></div>";
str += "<div class='loadinfo'><span id='uploadImgState" + idnum + "'></span></div>";
str += "</li>";
$("#loadimage").append(str);
TfileUploadNum += 1;
}
//开始上传
function TSubmitUploadImageFile() {
function TSubmitUploadImageFile() {
setTimeout("TajaxFileUpload()", 1000); //此为关键代码
}
//Ajax上传⽅法
function TajaxFileUpload() {
if (Tnum < TfileUploadNum + 1) {
//准备提交处理
$("#uploadImgState" + Tnum).html("<img src='/gif/upfileloader.gif'/>");
//开始提交
$.ajax({
type: "POST",
url: "Handler.ashx",
data: { upfile: $("#uploadImg" + Tnum).val()},
success: function(data, status) {
var stringArray = data.split("|");
//stringArray[0]    成功状态(1为成功，0为失败)
//stringArray[1]    上传成功的⽂件名
//stringArray[2]    消息提⽰
if (stringArray[0] == "1") {
//上传成功
$("#uploadImgState" + Tnum).html("<img src='/gif/Success.gif' />" + stringArray[1] + "--" + stringArray[2]); }
else {
//上传出错
$("#uploadImgState" + Tnum).html("<img src='/gif/Error.gif' />" + stringArray[1] + "--" + stringArray[2]);
}
Tnum++;
setTimeout("TajaxFileUpload()", 1000);
}
});
}
else {
}
}       
</script>
处理程序Handler.ashx
<%@ WebHandler Language="C#" Class="Handler" %>
using System;
using System.Web;
using System.IO;
using System.Text;
using System.Net;
public class Handler : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
//源图⽚路径
//源图⽚路径
string _fileNamePath = "";
try
{
_fileNamePath = context.Request.Form["upfile"];
string _savedFileResult = UpLoadFile(_fileNamePath); //开始上传
context.Response.Write(_savedFileResult);//返回上传结果
}
catch
{
context.Response.Write("0|error|⽂件路径错误");
}
}
/// <summary>
/// 保存图⽚
/// </summary>
/// <param name="fileNamePath"></param>
/
// <returns></returns>
private string UpLoadFile(string fileNamePath)
{
//图⽚格式
string fileNameExt = fileNamePath.Substring(fileNamePath.IndexOf('.')).ToLower();
if (!CheckFileExt(fileNameExt)) return "0|error|图⽚格式不正确!";
//保存路径
string toFilePath = "ProductUpload/";
//物理完整路径
string toFileFullPath = HttpContext.Current.Server.MapPath(toFilePath);
//检查是否有该路径 没有就创建
if (!Directory.Exists(toFileFullPath))
{
Directory.CreateDirectory(toFileFullPath);
}
//⽣成将要保存的随机⽂件名
string toFileName = GetFileName();
//将要保存的完整路径
string saveFile=toFileFullPath +toFileName + fileNameExt;
///创建WebClient实例
WebClient myWebClient = new WebClient();
//设定windows⽹络安全认证
myWebClient.Credentials = CredentialCache.DefaultCredentials;
//要上传的⽂件
FileStream fs = new FileStream(fileNamePath, FileMode.Open, FileAccess.Read);      BinaryReader r = new BinaryReader(fs);
//使⽤UploadFile⽅法可以⽤下⾯的格式
myWebClient.UploadFile(saveFile,fileNamePath);
return "1|"+toFileName+fileNameExt+"|保存成功.";
}
/// <summary>
/// 检测图⽚类型
/// </summary>
/// <param name="_fileExt"></param>
/// <returns>正确返回True</returns>
private bool CheckFileExt(string _fileExt)
{
string[] allowExt = new string[] { ".gif", ".jpg", ".jpeg" };
for (int i = 0; i < allowExt.Length; i++)
for (int i = 0; i < allowExt.Length; i++)
{
if (allowExt[i] == _fileExt) { return true; }
}
return false;
}
/
// <summary>
/// 得到随机图⽚名
/// </summary>
/// <returns></returns>
public static string GetFileName()
{
Random rd = new Random();
StringBuilder serial = new StringBuilder();
serial.Append(DateTime.Now.ToString("yyMMddHHmmssff")); serial.Append(rd.Next(0, 9999).ToString());
return serial.ToString();
}
public bool IsReusable
{
get
{
return false;
}
jquery在线图片}
}
CSS样式 upload.css
body{font-size: 12pt;}
ul{list-style: none;}
li{margin: 0px;}
#loadimage{width: 860px;overflow: hidden;}
.imagelabel{ float: left; width: 60px; height: 25px;}
.imagepath{float: left; width: 400px; height: 25px; }
.loadinfo{float: left; width: 400px;height: 25px;}

版权声明：本站内容均来自互联网，仅供演示用，请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系QQ:729038198，我们将在24小时内删除。