Uploadify 3.2上传文件，限制类型，大小，传递参数等

xiaoxiao2021-02-28 133

[csharp] view plain copy print ? <%@ 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) { $('#file_upload').uploadify('cancel', '*'); //隐藏进度条</span> var dataJson = JSON.parse(data); if (dataJson.Status) { //上传成功 alert(dataJson.Message); } else { //上传失败 alert(dataJson.Message); } }, //返回一个错误，选择文件的时候触发 'onSelectError': function (file, errorCode, errorMsg) { switch (errorCode) { case -100: alert(errorData.err100); break; case -110: alert(errorData.err110); break; case -120: alert(errorData.err120); break; case -130: alert(errorData.err130); break; } }, //检测FLASH失败调用 'onFallback': function () { alert("您未安装FLASH控件，无法上传！请安装FLASH控件后再试。"); } }); }); </script> </head> <body> <form id="form1" runat="server"> <div> <p><input type="file" name="file_upload" id="file_upload" /></p> <p> <img src="js/uploadify3.2/upload.jpg" style="cursor: pointer;" οnclick="javascript:$('#file_upload').uploadify('upload')" /> </p> </div> </form> </body> </html> [csharp] view plain copy print ? 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; } } } } [csharp] view plain copy print ? //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); } }

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