1、Uploadify簡介
Uploadify是基於jQuery的一種上傳插件，支持多文件、帶進度條顯示上傳，在項目開發中常被使用。
Uploadify官方網址：http://www.uploadify.com/
2、ASP.NET MVC3中的使用Uploadify
搭建ASP.NET MVC3解決方案如下圖，其中使用到的Uploadify為3.1版本：
1>、簡單示例
_Layout.cshtml代碼：
<!DOCTYPE html> <html> <head> <title>@ViewBag.Title</title> @RenderSection("Header") </head> <body> @RenderBody() </body> </html>
Index.cshtml代碼：
@{ ViewBag.Title = "Index"; Layout = "~/Views/Shared/_Layout.cshtml"; } @section Header{ <link href="@Url.Content("~/Scripts/uploadify-v3.1/uploadify.css")" rel="stylesheet" type="text/css" /> <script src="@Url.Content("~/Scripts/jquery-1.8.1.min.js")" type="text/javascript"></script> <script src="@Url.Content("~/Scripts/uploadify-v3.1/jquery.uploadify-3.1.min.js")" type="text/javascript"></script> <script type="text/javascript"> $(function () { $('#file_upload').uploadify({ 'swf' : '@Url.Content("~/Scripts/uploadify-v3.1/uploadify.swf")', 'uploader' : '/Home/Upload' }); }); </script> <style type="text/css"> body { font-size: 12px; } .tip { height: 20px; border-bottom: 1px solid #CCC; margin-bottom: 10px; } </style> } <div class="tip"> jQuey Uploadify上傳文件示例： </div> <input type="file" id="file_upload" name="file_upload" />
HomeController.cs代碼:
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using System.IO; namespace WebUI.Controllers { public class HomeController : Controller { // // GET: /Home/ public ActionResult Index() { return View(); } [AcceptVerbs(HttpVerbs.Post)] public JsonResult Upload(HttpPostedFileBase fileData) { if (fileData != null) { try { // 文件上傳后的保存路徑 string filePath = Server.MapPath("~/Uploads/"); if (!Directory.Exists(filePath)) { Directory.CreateDirectory(filePath); } string fileName = Path.GetFileName(fileData.FileName);// 原始文件名稱 string fileExtension = Path.GetExtension(fileName); // 文件擴展名 string saveName = Guid.NewGuid().ToString() + fileExtension; // 保存文件名稱 fileData.SaveAs(filePath + saveName); return Json(new { Success = true, FileName = fileName, SaveName = saveName }); } catch (Exception ex) { return Json(new { Success = false, Message = ex.Message }, JsonRequestBehavior.AllowGet); } } else { return Json(new { Success = false, Message = "請選擇要上傳的文件！" }, JsonRequestBehavior.AllowGet); } } } }
上傳效果圖：
2>、設置上傳圖片大小
ASP.NET MVC默認情況下，允許上傳的文件大小最大為4MB。因此在默認情況下，Uploadify也只能最大上傳4MB大小的文件，超過范圍則會IO報錯提示無法上傳。
修改Web.config設置允許上傳的最大文件大小：
<system.web> <!--設置最大允許上傳文件大小1G--> <httpRuntime maxRequestLength= "102400" executionTimeout= "60" /> </system.web>
修改最大上傳文件大小后效果：
3>、Uploadify常用屬性設置
auto：是否選擇文件后自動上傳，默認為true。
@{ ViewBag.Title = "Index"; Layout = "~/Views/Shared/_Layout.cshtml"; } @section Header{ <link href="@Url.Content("~/Scripts/uploadify-v3.1/uploadify.css")" rel="stylesheet" type="text/css" /> <script src="@Url.Content("~/Scripts/jquery-1.8.1.min.js")" type="text/javascript"></script> <script src="@Url.Content("~/Scripts/uploadify-v3.1/jquery.uploadify-3.1.min.js")" type="text/javascript"></script> <script type="text/javascript"> $(function () { $('#file_upload').uploadify({ 'auto' : false, 'swf' : '@Url.Content("~/Scripts/uploadify-v3.1/uploadify.swf")', 'uploader' : '/Home/Upload' }); }); </script> <style type="text/css"> body { font-size: 12px; } .tip { height: 20px; border-bottom: 1px solid #CCC; margin-bottom: 10px; } </style> } <div class="tip"> jQuey Uploadify上傳文件示例： </div> <div> <input type="file" id="file_upload" name="file_upload" /> </div> <div> <a href="javascript:$('#file_upload').uploadify('upload');">上傳</a> </div>
buttonText：設置上傳按鈕顯示文字。
<script type="text/javascript"> $(function () { $('#file_upload').uploadify({ 'buttonText' : '請選擇上傳文件', 'swf' : '@Url.Content("~/Scripts/uploadify-v3.1/uploadify.swf")', 'uploader' : '/Home/Upload' }); }); </script>
buttonImage：設置上傳按鈕背景圖片。
@{ ViewBag.Title = "Index"; Layout = "~/Views/Shared/_Layout.cshtml"; } @section Header{ <link href="@Url.Content("~/Scripts/uploadify-v3.1/uploadify.css")" rel="stylesheet" type="text/css" /> <script src="@Url.Content("~/Scripts/jquery-1.8.1.min.js")" type="text/javascript"></script> <script src="@Url.Content("~/Scripts/uploadify-v3.1/jquery.uploadify-3.1.min.js")" type="text/javascript"></script> <script type="text/javascript"> $(function () { $('#file_upload').uploadify({ 'buttonImage': '@Url.Content("~/Scripts/uploadify-v3.1/browse-btn.png")', 'swf': '@Url.Content("~/Scripts/uploadify-v3.1/uploadify.swf")', 'uploader': '/Home/Upload' }); }); </script> <style type="text/css"> body { font-size: 12px; } .tip { height: 20px; border-bottom: 1px solid #CCC; margin-bottom: 10px; } .uploadify-button { background-color: transparent; border: none; padding: 0; } .uploadify:hover .uploadify-button { background-color: transparent; } </style> } <div class="tip"> jQuey Uploadify上傳文件示例： </div> <div> <input type="file" id="file_upload" name="file_upload" /> </div>
multi：是否允許一次選擇多個文件一起上傳，默認為true。
<script type="text/javascript"> $(function () { $('#file_upload').uploadify({ 'buttonImage': '@Url.Content("~/Scripts/uploadify-v3.1/browse-btn.png")', multi: true, 'swf': '@Url.Content("~/Scripts/uploadify-v3.1/uploadify.swf")', 'uploader': '/Home/Upload' }); }); </script>
fileTypeDesc：設置允許上傳圖片格式描述；
fileTypeExts：設置允許上傳圖片格式。
<script type="text/javascript"> $(function () { $('#file_upload').uploadify({ 'buttonImage': '@Url.Content("~/Scripts/uploadify-v3.1/browse-btn.png")', 'fileTypeDesc': '圖片文件', 'fileTypeExts': '*.gif; *.jpg; *.png', 'swf': '@Url.Content("~/Scripts/uploadify-v3.1/uploadify.swf")', 'uploader': '/Home/Upload' }); }); </script>
removeCompleted：設置已完成上傳的文件是否從隊列中移除，默認為true。
$(function() { $("#file_upload").uploadify({ 'removeCompleted' : false, 'swf' : '/uploadify/uploadify.swf', 'uploader' : '/uploadify/uploadify.php' }); });
queueSizeLimit：設置上傳隊列中同時允許的上傳文件數量，默認為999。
$(function() {
$("#file_upload").uploadify({
'queueSizeLimit' : 1,
'swf' : '/uploadify/uploadify.swf',
'uploader' : '/uploadify/uploadify.php'
});
});
uploadLimit：設置允許上傳的文件數量，默認為999。
$(function() { $("#file_upload").uploadify({ 'swf' : '/uploadify/uploadify.swf', 'uploader' : '/uploadify/uploadify.php', 'uploadLimit' : 1 }); });
4>、Uploadify常用事件設置
onUploadComplete:單個文件上傳完成時觸發事件。
$(function() { $("#file_upload").uploadify({ 'swf' : '/uploadify/uploadify.swf', 'uploader' : '/uploadify/uploadify.php', 'onUploadComplete' : function(file) { alert('The file ' + file.name + ' finished processing.'); } }); });
onQueueComplete：隊列中全部文件上傳完成時觸發事件。
$(function() { $("#file_upload").uploadify({ 'swf' : '/uploadify/uploadify.swf', 'uploader' : '/uploadify/uploadify.php', 'onQueueComplete' : function(queueData) { alert(queueData.uploadsSuccessful + ' files were successfully uploaded.'); } }); });
onUploadSuccess：單個文件上傳成功后觸發事件。
<script type="text/javascript"> $(function () { $('#file_upload').uploadify({ 'buttonImage': '@Url.Content("~/Scripts/uploadify-v3.1/browse-btn.png")', 'swf': '@Url.Content("~/Scripts/uploadify-v3.1/uploadify.swf")', 'uploader': '/Home/Upload', 'onUploadSuccess': function (file, data, response) { eval("data=" + data); alert('文件 ' + file.name + ' 已經上傳成功，並返回 ' + response + ' 保存文件名稱為 ' + data.SaveName); } }); }); </script>
4>、Uploadify常用方法
upload：上傳文件
cancel：取消上傳
@{ ViewBag.Title = "Index"; Layout = "~/Views/Shared/_Layout.cshtml"; } @section Header{ <link href="@Url.Content("~/Scripts/uploadify-v3.1/uploadify.css")" rel="stylesheet" type="text/css" /> <script src="@Url.Content("~/Scripts/jquery-1.8.1.min.js")" type="text/javascript"></script> <script src="@Url.Content("~/Scripts/uploadify-v3.1/jquery.uploadify-3.1.min.js")" type="text/javascript"></script> <script type="text/javascript"> $(function () { $('#file_upload').uploadify({ 'auto' : false, 'buttonImage' : '@Url.Content("~/Scripts/uploadify-v3.1/browse-btn.png")', 'swf' : '@Url.Content("~/Scripts/uploadify-v3.1/uploadify.swf")', 'uploader' : '/Home/Upload' }); }); </script> <style type="text/css"> body { font-size: 12px; } .tip { height: 20px; border-bottom: 1px solid #CCC; margin-bottom: 10px; } .uploadify-button { background-color: transparent; border: none; padding: 0; } .uploadify:hover .uploadify-button { background-color: transparent; } </style> } <div class="tip"> jQuey Uploadify上傳文件示例： </div> <div> <input type="file" id="file_upload" name="file_upload" /> </div> <div> <a href="javascript:$('#file_upload').uploadify('upload');">上傳第一個</a> <a href="javascript:$('#file_upload').uploadify('upload','*');">上傳隊列</a> <a href="javascript:$('#file_upload').uploadify('cancel');">取消第一個</a> <a href="javascript:$('#file_upload').uploadify('cancel', '*');">取消隊列</a> </div>
3、示例代碼附件