jQuery上传插件Uploadify 3.2在.NET下的使用

 1 @{
 2     ViewBag.Title = "Home Page";
 3 }
 4  
 5 @section scripts{
 6     <script src="~/Scripts/jquery-1.8.2.min.js"></script>
 7     <script src="~/uploadify/jquery.uploadify.min.js"></script>
 8     <link href="~/uploadify/uploadify.css" rel="stylesheet" />
 9     <script type="text/javascript">
10         $(function () {
11             ShowUpFiles();
12             //添加界面的附件管理
13             $(‘#file_upload‘).uploadify({
14                 ‘debug‘: false,   //开启调试  
15                ‘swf‘: ‘/uploadify/uploadify.swf‘,  //FLash文件路径
16                 ‘buttonText‘: ‘浏  览‘,       //按钮文本
17                 ‘uploader‘: ‘/Home/Upload‘,    //处理文件上传Action
18                 ‘queueID‘: ‘fileQueue‘,        //队列的ID
19                 ‘queueSizeLimit‘: 10,      //队列最多可上传文件数量，默认为999
20                 ‘auto‘: false,              //选择文件后是否自动上传，默认为true
21                 ‘multi‘: true,              //是否为多选，默认为true
22                 ‘removeCompleted‘: true,   //是否完成后移除序列，默认为true
23                 ‘fileSizeLimit‘: ‘10MB‘,     //单个文件大小，0为无限制，可接受KB,MB,GB等单位的字符串值
24                 ‘fileTypeDesc‘: ‘Image Files‘,    //文件描述
25                 ‘fileTypeExts‘: ‘*.jpg;*.rar‘,  //上传的文件后缀过滤器
26                 ‘onQueueComplete‘: function (event, data) {                 //所有队列完成后事件
27                     //ShowUpFiles();  //完成后更新已上传的文件列表
28                     alert("上传完毕！");                            //提示完成           
29                 },
30                 //上传到服务器，服务器返回相应信息到data里  
31                 ‘onUploadSuccess‘: function (file, data, response) {
32                     if (data == "suc") {
33                         ShowUpFiles();
34                     }
35                     else {
36                         alert("文件上传失败，请重试！");
37                     }
38                 },
39                 ‘onUploadStart‘: function (file) {
40                     $("#file_upload").uploadify("settings", ‘formData‘, { ‘folder‘: ‘政策法规‘, ‘guid‘: $("#Attachment_GUID").val() }); //动态传参数
41                 },
42                 ‘onUploadError‘: function (event, queueId, fileObj, errorObj) {
43                     //alert(errorObj.type + "：" + errorObj.info);
44                 },
45                 ‘onSelectError‘: function (file, errorCode, errorMsg) {
46                     switch (errorCode) {
47                         case -100:
48                             alert("上传的文件数量已经超出系统限制的" + $(‘#file_upload‘).uploadify(‘settings‘, ‘queueSizeLimit‘) + "个文件！");
49                             break;
50                         case -110:
51                             alert("文件 [" + file.name + "] 大小超出系统限制的" + $(‘#file_upload‘).uploadify(‘settings‘, ‘fileSizeLimit‘) + "大小！");
52                             break;
53                         case -120:
54                             alert("文件 [" + file.name + "] 大小异常！");
55                             break;
56                         case -130:
57                             alert("文件 [" + file.name + "] 类型不正确！");
58                             break;
59                     }
60                 },
61                 //检测FLASH失败调用  
62                 ‘onFallback‘: function () {
63                     alert("您未安装FLASH控件，无法上传图片！请安装FLASH控件后再试。");
64                 }
65             });
66         });
67 
68 
69         function ShowUpFiles() {
70             $("#div_files").load("/Home/ListFile?t=" + new Date().getTime());
71         }
72 
73 
74     </script>
75 }
76 <fieldset>
77     <table style="border: 0px solid blue; width: 100%;">
78         <tr>
79             <td colspan="2">
80                 <div id="fileQueue" class="fileQueue"></div>
81             </td>
82         </tr>
83         <tr>
84             <td>
85                 <input type="hidden" id="Attachment_GUID" name="Attachment_GUID" />
86 
87                 <input id="file_upload" name="file_upload" type="file" multiple="multiple">
88             </td>
89             <td>
90                 <input type="button" id="btnUpload" onclick="javascript: $(‘#file_upload‘).uploadify(‘upload‘, ‘*‘);" value="上传" />
91                 <input type="button" id="btnCancelUpload" onclick="javascript: $(‘#file_upload‘).uploadify(‘cancel‘, ‘*‘);" value="取消" />
92             </td>
93         </tr>
94     </table>
95     <div id="div_files"></div>
96 </fieldset>

  1 [AcceptVerbs(HttpVerbs.Post)]
  2         public ActionResult Upload(HttpPostedFileBase fileData, string guid, string folder)
  3         {
  4             if (fileData != null)
  5             {
  6                 try
  7                 {
  8                     ControllerContext.HttpContext.Request.ContentEncoding = Encoding.GetEncoding("UTF-8");
  9                     ControllerContext.HttpContext.Response.ContentEncoding = Encoding.GetEncoding("UTF-8");
 10                     ControllerContext.HttpContext.Response.Charset = "UTF-8";
 11 
 12                     // 文件上传后的保存路径
 13                     string filePath = Server.MapPath("~/UploadFiles/");
 14 
 15                     string fileName = Path.GetFileName(fileData.FileName);      //原始文件名称
 16                     string fileExtension = Path.GetExtension(fileName);         //文件扩展名 
 17                     string saveName = DateTime.Now.ToString("yyyyMMddHHmmss") + fileExtension; //保存文件名称
 18                     string savepath = filePath + DateTime.Now.ToString("yyyyMMddHHmmss") + fileExtension; //保存文件名称
 19 
 20                     bool saveResult = false;
 21                     if (fileExtension == ".rar")
 22                     {
 23                         fileData.SaveAs(savepath);
 24                         saveResult = true;
 25                     }
 26                     else
 27                     {
 28                         saveResult = MakeThumbnail(fileData.InputStream, savepath, 80, 80);
 29                     }
 30 
 31                     if (saveResult == true)
 32                     {
 33                         var model = new UploadFile
 34                          {
 35                              FileName = saveName,
 36                              UploadTime = DateTime.Now
 37                          };
 38 
 39                         UploadFileColec.Files.Add(model);
 40                     }
 41 
 42                     return Content("suc");
 43                 }
 44                 catch (Exception ex)
 45                 {
 46                     return Content("false");
 47                 }
 48             }
 49             else
 50             {
 51                 return Content("false");
 52             }
 53         }
 54 
 55         public ActionResult ListFile()
 56         {
 57             return View(UploadFileColec.Files);
 58         }
 59 
 60         //把文件转为字节（用于保存到数据库中）
 61         private byte[] ReadFileBytes(HttpPostedFileBase fileData)
 62         {
 63             byte[] data;
 64             using (Stream inputStream = fileData.InputStream)
 65             {
 66                 MemoryStream memoryStream = inputStream as MemoryStream;
 67                 if (memoryStream == null)
 68                 {
 69                     memoryStream = new MemoryStream();
 70                     inputStream.CopyTo(memoryStream);
 71                 }
 72                 data = memoryStream.ToArray();
 73             }
 74             return data;
 75         }
 76 
 77         //处理图片，转换图片为自定义大小
 78         private bool MakeThumbnail(Stream Stream, string newPath, int width, int height)
 79         {
 80             System.Drawing.Image ig = System.Drawing.Image.FromStream(Stream);
 81             int towidth = width;
 82             int toheight = height;
 83             int x = 0;
 84             int y = 0;
 85             int ow = ig.Width;
 86             int oh = ig.Height;
 87             if ((double)ig.Width / (double)ig.Height > (double)towidth / (double)toheight)
 88             {
 89                 oh = ig.Height;
 90                 ow = ig.Height * towidth / toheight;
 91                 y = 0;
 92                 x = (ig.Width - ow) / 2;
 93 
 94             }
 95             else
 96             {
 97                 ow = ig.Width;
 98                 oh = ig.Width * height / towidth;
 99                 x = 0;
100                 y = (ig.Height - oh) / 2;
101             }
102             System.Drawing.Image bitmap = new System.Drawing.Bitmap(towidth, toheight);
103             System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap);
104             g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
105             g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
106             g.Clear(System.Drawing.Color.Transparent);
107             g.DrawImage(ig, new System.Drawing.Rectangle(0, 0, towidth, toheight), new System.Drawing.Rectangle(x, y, ow, oh), System.Drawing.GraphicsUnit.Pixel);
108             try
109             {
110                 bitmap.Save(newPath, System.Drawing.Imaging.ImageFormat.Jpeg);
111                 return true;
112             }
113             catch (Exception ex)
114             {
115                 return false;
116                 throw ex;
117             }
118             finally
119             {
120                 ig.Dispose();
121                 bitmap.Dispose();
122                 g.Dispose();
123             }
124 
125         }