Uploadify 3.2上传文件，限制类型，大小，传递参数等
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="upload.aspx.cs" Inherits="PDF2016.upload" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>uploadify3.2上传文件</title>
<script src="js/jquery-1.10.2.min.js"></script>
<link href="js/uploadify3.2/uploadify.css" rel="stylesheet" />
<script src="js/uploadify3.2/jquery.uploadify.min.js"></script>
<script type="text/javascript">
$(function () {
/*************setting***************/
var definedData = [];
definedData.auth = "@(Request.Cookies[FormsAuthentication.FormsCookieName]==null ? string.Empty : Request.Cookies[FormsAuthentication.FormsCookieName].Value)";
definedData.ASPSESSID = "@Session.SessionID";
definedData.fileTypeExts = "*.doc;*.docx;*.xls;*.xlsx;*.pdf;*.ppt;*.txt;*.rar;*.zip;*.exe"; //上传类型
definedData.uploader = "/UploadHandler.ashx"; //后台处理路径
definedData.fileSizeLimit = "2MB"; //上传大小
definedData.fileObjName = "file_upload"; //控件名
definedData.queueSizeLimit = 1; //允许上传个数文件
var data = { 'ASPSESSID': definedData.ASPSESSID, 'AUTHID': definedData.auth }; //firefox用swf上传丢失session
var errorData = [];
errorData.err100 = "文件个数超出系统限制，只允许上传" + definedData.queueSizeLimit + "个文件！";
errorData.err110 = "文件超出系统限制的大小，限制文件大小" + definedData.fileSizeLimit + "！";
errorData.err120 = "文件大小异常！";
errorData.err130 = "文件类型不正确，只允许上传后缀名" + definedData.fileTypeExts + "！";
/*************setting***************/
$("#file_upload").uploadify({
'buttonText': '选择资源',
'swf': '/js/uploadify3.2/uploadify.swf',
'uploader': definedData.uploader,
'auto': false, //当文件被添加到队列时，自动上传
'formData': data, //上传时传递数据
'fileObjName': definedData.fileObjName,
'queueSizeLimit': definedData.queueSizeLimit,
'fileTypeExts': definedData.fileTypeExts,
'fileSizeLimit': definedData.fileSizeLimit,
'onUploadSuccess': function(file, data, response) {
$('#file_upload').uploadify('cancel', '*'); //隐藏进度条</span>
var dataJson = JSON.parse(data);
if (dataJson.Status) {
//上传成功
alert(dataJson.Message);
} else {
//上传失败
alert(dataJson.Message);
}
},
//返回一个错误，选择文件的时候触发
'onSelectError': function (file, errorCode, errorMsg) {
switch (errorCode) {
case -100:
alert(errorData.err100);
break;
case -110:
alert(errorData.err110);
break;
case -120:
alert(errorData.err120);
break;
case -130:
alert(errorData.err130);
break;
}
},
//检测FLASH失败调用
'onFallback': function () {
alert("您未安装FLASH控件，无法上传！请安装FLASH控件后再试。");
}
});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<p><input type="file" name="file_upload" id="file_upload" /></p>
<p>
<img src="js/uploadify3.2/upload.jpg" style="cursor: pointer;" onclick="javascript:$('#file_upload').uploadify('upload')" />
</p>
</div>
</form>
</body>
</html>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.IO;
using Newtonsoft.Json;
namespace PDF2016
{
/// <summary>
/// UploadHandler 的摘要说明
/// </summary>
public class UploadHandler : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/plain";
context.Response.Charset = "utf-8";
UploadResult result = new UploadResult();
HttpPostedFile file = context.Request.Files["file_upload"];
string folder = context.Server.MapPath("~/upload/");
if (file != null && file.ContentLength > 0)
{
if (!Directory.Exists(folder))
{
Directory.CreateDirectory(folder);
}
file.SaveAs(Path.Combine(folder, file.FileName));
result.Status = true;
result.Message = file.FileName;
}
else
{
result.Status = false;
result.Message = "请选择上传文件";
}
string json = JsonConvert.SerializeObject(result, Formatting.Indented);
context.Response.Write(json);
}
public class UploadResult
{
public bool Status;
public string Message;
}
public bool IsReusable
{
get { return false; }
}
}
}
//在Global.asax中添加如下代码
//using System.Web.Security;
protected void Application_BeginRequest(object sender, EventArgs e)
{
try
{
string session_param_name = "ASPSESSID";
string session_cookie_name = "ASP.NET_SESSIONID";
if (HttpContext.Current.Request.Form[session_param_name] != null)
{
UpdateCookie(session_cookie_name, HttpContext.Current.Request.Form[session_param_name]);
}
else if (HttpContext.Current.Request.QueryString[session_param_name] != null)
{
UpdateCookie(session_cookie_name, HttpContext.Current.Request.QueryString[session_param_name]);
}
}
catch (Exception)
{
}
try
{
string auth_param_name = "AUTHID";
string auth_cookie_name = FormsAuthentication.FormsCookieName;
if (HttpContext.Current.Request.Form[auth_param_name] != null)
{
UpdateCookie(auth_cookie_name, HttpContext.Current.Request.Form[auth_param_name]);
}
else if (HttpContext.Current.Request.QueryString[auth_param_name] != null)
{
UpdateCookie(auth_cookie_name, HttpContext.Current.Request.QueryString[auth_param_name]);
}
}
catch (Exception)
{
}
}
void UpdateCookie(string cookie_name, string cookie_value)
{
HttpCookie cookie = HttpContext.Current.Request.Cookies.Get(cookie_name);
if (cookie == null)
{
HttpCookie cookie1 = new HttpCookie(cookie_name, cookie_value);
Response.Cookies.Add(cookie1);
}
else
{
cookie.Value = cookie_value;
HttpContext.Current.Request.Cookies.Set(cookie);
}
}
