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C#.net中jquery实现文件上传

2013-05-19 12:38 302 查看
页面代码:

NOTE:需要jquery插件(Uploadify)下载地址:uploadify下载

<%@ Page Language="C#" CodeBehind="AsynchronousUpload.aspx.cs"

Inherits="Example.AsynchronousUpload" %>

<!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 src="Scripts/uploadify-v2.1.4/jquery-1.4.2.min.js" type="text/javascript"></script>

<script src="Scripts/uploadify-v2.1.4/jquery.uploadify.v2.1.4.js" type="text/javascript"></script>

<script src="Scripts/uploadify-v2.1.4/jquery.uploadify.v2.1.4.min.js" type="text/javascript"></script>

<script src="Scripts/uploadify-v2.1.4/swfobject.js" type="text/javascript"></script>

<link href="Scripts/uploadify-v2.1.4/uploadify.css" rel="stylesheet" type="text/css" />

<script type="text/javascript">

$(document).ready(function () {

$("#uploadify").uploadify({

'uploader': 'Scripts/uploadify-v2.1.4/uploadify.allglyphs.swf',

'script': 'handler/upHandle.ashx',

'cancelImg': 'Scripts/uploadify-v2.1.4/cancel.png',

'folder': 'UpFile', //上传文件路径

'queueID': 'fileQueue',

'auto': false, //是否需要点击上传才上传文件

'multi': false, //是否允许上传多个文件

'fileDesc': '请选择图片类型',

'fileExt': '*.jpg',

'sizeLimit': '1048576', //限制大小1M

onComplete: function (evt, queueID, fileObj, response, data) {

alert(response);

}

});

});

</script>

</head>

<body>

<form id="form1" runat="server">

<div id="fileQueue">

</div>

<input type="file" name="uploadify" id="uploadify" />

<p>

<a href="javascript:$('#uploadify').uploadifyUpload()">上传</a>| <a href="javascript:$('#uploadify').uploadifyClearQueue()">

取消上传</a>

</p>

</form>

</body>

</html>

一般处理程序代码:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.IO;

namespace Example.handler

{

/// <summary>

/// upHandle 的摘要说明

/// </summary>

public class upHandle : IHttpHandler

{

public void ProcessRequest(HttpContext context)

{

context.Response.ContentType = "text/plain";

context.Response.Charset = "utf-8";

HttpPostedFile file = context.Request.Files["Filedata"];

string uploadPath =HttpContext.Current.Server.MapPath(@context.Request["folder"]) + "\\";

if (file != null)

{

if (!Directory.Exists(uploadPath))

{

Directory.CreateDirectory(uploadPath);

}

file.SaveAs(uploadPath + file.FileName);

//下面这句代码缺少的话,上传成功后上传队列的显示不会自动消失

context.Response.Write("上传成功");

}

else

{

context.Response.Write("0");

}

}

public bool IsReusable

{

get

{

return false;

}

}

}

}
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