• 在MVC中利用uploadify插件实现上传文件的功能

          趁着近段的空闲时间，开发任务不是很重，就一直想把以前在仓促时间里所写的多文件上传功能改一下，在网上找了很多例子，觉得uploadify还可以，就想用它来试试。实现自己想要的功能。根据官网的开发文档，同时借鉴别人的经验，经过断断续续的修改（中间一直被安排其它事），把uploadify默认的样式改，同时把共性都封装了一下，最终完工了。

         1.在_Layout.cshtml 页面中引入js文件和CSS文件：

    1 @*-------上传文件--------*@
2     <link href="@Url.Content("~/Scripts/uploadify/css/uploadify.css")" rel="stylesheet" />
3     <script src="@Url.Content("~/Scripts/JSScript/upload.js")"></script>
4     <script src="@Url.Content("~/Scripts/uploadify/jquery.uploadify.min.js")"></script>
5 <script src="@Url.Content("~/Scripts/jquery-1.7.1.min.js")" type="text/javascript"></script>
    引入文件

       2.我把每个页面都用到的方法封装在upload.js文件里，同时对各个相关的属性都作了解释（最主要的是 'swf': '/Scripts/uploadify/uploadify.swf'这个的路径要正确）：

      1 function upload(config) {
  2     $("#" + config.id).uploadify({
  3         'method': config.method ? config.method : 'post',//默认是’post’,可以设置为’get’
  4         'formData': config.formData,
  5         'swf': '/Scripts/uploadify/uploadify.swf', //关键的路径要正确
  6         'uploader': '/HanNeng/Upload',
  7         'buttonClass': config.buttonClass ? config.buttonClass : null, //额外增加的上传按钮样式类型
  8         'buttonImage': config.buttonImage ? config.buttonImage : null, //按钮的背景图片
  9         'buttonText': config.buttonText ? config.buttonText : '选择文件',//按钮显示的文字
 10         'auto': config.auto ? config.auto : true, //选择文件后是否自动上传，默认是true,为自动上传
 11         'height': config.width ? config.width : 25, //按钮的高度
 12         'width': config.width ? config.width : 80, //按钮的宽度
 13         'fileTypeDesc': config.fileTypeDesc, //文件类型的说明
 14         'fileTypeExts': config.fileTypeExts, //指定允许上传的文件类型,默认*.*
 15         'fileSizeLimit': config.fileSizeLimit, //上传文件大小限制，默认单位是KB，若需要限制大小在100KB以内， 可设置该属性为：‘100KB’
 16         'removeTimeout': 0, //上传完成后的进度条的显示时间        
 17         'queueSizeLimit': config.queueSizeLimit, //上传队列长度限制，一次最多可上传多少个文件
 18         'overrideEvents': ['onDialogClose', 'onUploadSuccess', 'onUploadError', 'onSelectError'],  //不弹出默认的提示信息
 19         'onSWFReady': config.sfdisable == true ? uploadify_onSWFReady : null, //如果有disable参数且为true时，就禁用掉上传功能
 20         'onUploadStart': function (file) {  //在一个文件开始上传之前触发。
 21             $("#" + config.id).uploadify("settings", config.formKey, config.formData);
 22         },
 23         'onSelect': uploadify_onSelect, //选择文件后触发
 24         'onSelectError': uploadify_onSelectError, //选择文件后出错时触发
 25         'onUploadError': uploadify_onUploadError,//上传文件失败触发
 26         'onUploadSuccess': uploadify_onUploadSuccess //在每一个文件上传成功后触发
 27     });
 28 }
 29 
 30 //选择文件错误调用的方法
 31 var uploadify_onSelectError = function (file, errorCode, errorMsg) {
 32     var msgText = "上传失败,原因：

";
 33     switch (errorCode) {
 34         case SWFUpload.QUEUE_ERROR.QUEUE_LIMIT_EXCEEDED:
 35             msgText += "  每次上传的文件数量最多只可上传 " + this.settings.queueSizeLimit + "个文件！
";
 36             break;
 37         case SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT:
 38             msgText += "  文件 【" + file.name + "】 大小超过系统限制的( " + this.settings.fileSizeLimit + " )大小！
";
 39             break;
 40         case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
 41             msgText += "  文件 【" + file.name + "】 大小为0，不可上传！
";
 42             break;
 43         case SWFUpload.QUEUE_ERROR.INVALID_FILETYPE:
 44             msgText += "  所选文件 【" + file.name + "】 的格式不正确，仅限上传（" + this.settings.fileTypeExts + "）的文件格式！
";
 45             break;
 46         default:
 47             msgText += "错误代码：" + errorCode + "
" + errorMsg;
 48     }
 49     art.dialog.alert(msgText);
 50 }
 51 
 52 //文件上传错误调用的方法
 53 var uploadify_onUploadError = function (file, errorCode, errorMsg, errorString) {
 54     // 手工取消不弹出提示  
 55     if (errorCode == SWFUpload.UPLOAD_ERROR.FILE_CANCELLED
 56             || errorCode == SWFUpload.UPLOAD_ERROR.UPLOAD_STOPPED) {
 57         return;
 58     }
 59     var msgText = "上传失败

";
 60     switch (errorCode) {
 61         case SWFUpload.UPLOAD_ERROR.HTTP_ERROR:
 62             msgText += " HTTP 错误
" + errorMsg;
 63             break;
 64         case SWFUpload.UPLOAD_ERROR.MISSING_UPLOAD_URL:
 65             msgText += " 上传文件 【" + file.name + "】 丢失，请重新上传！
";
 66             break;
 67         case SWFUpload.UPLOAD_ERROR.IO_ERROR:
 68             msgText += " IO错误！
";
 69             break;
 70         case SWFUpload.UPLOAD_ERROR.SECURITY_ERROR:
 71             msgText += " 安全性错误
" + errorMsg;
 72             break;
 73         case SWFUpload.UPLOAD_ERROR.UPLOAD_LIMIT_EXCEEDED:
 74             msgText += " 每次最多上传 " + this.settings.uploadLimit + "个！
";
 75             break;
 76         case SWFUpload.UPLOAD_ERROR.UPLOAD_FAILED:
 77             msgText += errorMsg;
 78             break;
 79         case SWFUpload.UPLOAD_ERROR.SPECIFIED_FILE_ID_NOT_FOUND:
 80             msgText += " 找不到指定文件，请重新操作！
";
 81             break;
 82         case SWFUpload.UPLOAD_ERROR.FILE_VALIDATION_FAILED:
 83             msgText += "参数错误！
";
 84             break;
 85         default:
 86             msgText += "文件:【" + file.name + "】
错误码:" + errorCode + "
"
 87                     + errorMsg + "
" + errorString;
 88     }
 89     art.dialog.alert(msgText);
 90     return parameters;
 91 }
 92 
 93 //选择文件调用的方法
 94 var uploadify_onSelect = function () {
 95 
 96 }
 97 
 98 //上传成功后调用的方法
 99 var uploadify_onUploadSuccess = function (file, data, response) {
100     var innerHtml = "";
101     if (response) {
102         var json = (new Function("", "return " + data))();
103         innerHtml = "<li style="list-style: disc">"
104             + "<a style='color:#C51616' href='/HanNeng/DownFile?filePath=" + json.filePath + "&fileName=" + file.name + "&fileId=" + json.aID + "&backUrl=" + json.backUrl + "&url=" + json.url;
105         if (json.urlID != "0") {
106             innerHtml += "?id=" + json.urlID;
107         }
108         innerHtml += "'>" + file.name + "</a>" + "<a style='margin-left: 10px;' href='javascript:void()' name='deleteImg' curid='" + json.aID + "' onclick="DeleteFile(this)">"
109         + "<img src='/Content/images/delete.png' /></a></li>";
110        
111         //当上传的文档为课题的相关文档时，上传成功后作特殊处理
112         if (json.attType.indexOf("KT") >= 0) {          
113             $.ajax({
114                 type: 'POST',
115                 url: '/Subject/SubjectUploadDoc',
116                 dataType: 'json',
117                 data: { guid: json.guid, atttype: json.attType },
118                 success: function (data) {
119                     if (data.isok) {
120                     } 
121                 }
122             });
123         }
124     } else {
125         innerHtml = "<div>该附件上传失败，请重新上传</div>";
126     }
127     $("#filename").html($("#filename").html() + innerHtml);
128 }
129 
130 //检测FLASH失败调用
131 var uploadify_onFallback = function () {
132     art.dialog.alert("您未安装FLASH控件，无法上传图片！请安装FLASH控件后再试。");
133 }
134 
135 //加载完毕后，禁用uploadify时触发(通过disable方法)
136 var uploadify_onSWFReady = function () {
137     $('#file_upload').uploadify('disable', true);
138     $(".uploadify-button-text").css("color", "#999");
139 }
    upload.js

       3.MVC里控制器Controller的上传代码，并插入数据表中（'uploader'这个引用到），在return Json（）返回自己想要的参数，之后在上传成功后，在uploadify_onUploadSuccess方法里获取传过来的参数：

     1 #region uploadify上传文件方法
 2         [AcceptVerbs(HttpVerbs.Post)]
 3         public JsonResult Upload(HttpPostedFileBase fileData)
 4         {
 5             HanNeng.Common.UpLoadHelper upload = new HanNeng.Common.UpLoadHelper();
 6             string guid = HttpContext.Request.Form["guid"];
 7             string attType = HttpContext.Request.Form["attType"];
 8             string strUrl = HttpContext.Request.Form["url"];
 9             string strUrlID = HttpContext.Request.Form["urlID"];
10             string backUrl = HttpContext.Request.Form["backUrl"];
11             int i = 0;
12             int aid = 0;
13             bool istrue = false;
14             if (fileData != null)
15             {
16                 try
17                 {
18                     //文件上传后的保存路径
19                     string filePath = upload.FilePath;//文件保存的目录
20                     if (!Directory.Exists(filePath))
21                         Directory.CreateDirectory(filePath); //如果不存在UploadFile文件夹，则创建UploadFile文件夹 
22 
23                     upload.FileName = System.IO.Path.GetFileName(fileData.FileName); //得到文件名字
24                     upload.FileWithoutName = System.IO.Path.GetFileNameWithoutExtension(fileData.FileName); //不含有扩展名
25                     upload.FileSize = fileData.ContentLength; //得到文件大小
26                     upload.FileExt = upload.GetExt(fileData.FileName);//得到文件扩展名                   
27                     upload.Category = fileData.ContentType;  //得到文件输出类型
28                     upload.FileNewName = upload.GetFileName(upload.FileExt);
29 
30                     //存入文件
31                     fileData.SaveAs(filePath + upload.FileNewName);//保存文件到文件夹中  
32                     string fileName = Path.GetFileName(fileData.FileName);// 原始文件名称
33                     string fileExtension = Path.GetExtension(fileName); // 文件扩展名                   
34 
35                     fileData.SaveAs(filePath + upload.FileNewName);
36                     string path = "/UploadFile/" + System.IO.Path.GetFileName(upload.FileNewName);
37 
38                     Model.Attachment att = new Model.Attachment();
39                     att.AttachmentID = System.Guid.NewGuid().ToString("D");
40                     att.FileName = upload.FileName;
41                     att.FileLogicName = upload.FileNewName;
42                     att.AttachmentType = attType;
43                     att.FID = guid;
44                     att.FilePath = path;
45                     att.FileSize = upload.FileSize;
46                     att.FileExtension = upload.FileExt;
47                     att.CreateUserID = Identity.UserID;
48                     att.CreateTime = DateTime.Now;
49                     att.Category = upload.Category;
50                     att.States = 1;
51                     att.Summary = (i + 1).ToString(); //排序
52                     istrue = new BLL.Attachment().Add(att) > 0;
53                     if (istrue)
54                     {
55                         Model.Attachment matt = new BLL.Attachment().GetModel("AttachmentID", att.AttachmentID);
56                         if (matt != null)
57                             aid = matt.AttachmentAutoID;
58                     }
59 
60                     return Json(new
61                     {
62                         Success = true,
63                         fileName = att.FileName,
64                         SaveName = att.FileLogicName,
65                         attType = att.AttachmentType,
66                         filePath = att.FilePath,
67                         guid = att.FID,
68                         aID = aid,
69                         url = strUrl,
70                         urlID = strUrlID,
71                         backUrl = backUrl
72                     }, JsonRequestBehavior.AllowGet);
73                 }
74                 catch (Exception ex)
75                 {
76                     return Json(new { Success = false, Message = ex.Message }, JsonRequestBehavior.AllowGet);
77                 }
78             }
79             else
80                 return Json(new { Success = false, Message = "请选择要上传的文件！" }, JsonRequestBehavior.AllowGet);
81         }
82         #endregion
    Upload方法

       4.删除已上传文件的方法：

     1 #region 无刷新删除上传的附件
 2         public JsonResult DeleteFile(int aID)
 3         {
 4             bool isOk = false;
 5             if (aID > 0)
 6             {
 7                 Model.Attachment att = new BLL.Attachment().GetModel(aID);
 8                 if (att != null)
 9                 {
10                     isOk = new BLL.Attachment().Delete(aID);
11                     //将文件夹里的文件也一起删除
12                     if (System.IO.Directory.Exists(Request.MapPath("~/UploadFile/")))
13                     {
14                         if (System.IO.File.Exists(Request.MapPath("~/UploadFile/" + att.FileLogicName)))
15                         {
16                             System.IO.File.Delete(Request.MapPath("~/UploadFile/" + att.FileLogicName));
17                         }
18                     }
19                 }
20             }
21             return Json(new { success = isOk });
22         }
23         #endregion
    DeleteFile方法

       5.下载文件的方法

     1 #region 下载文件-DownFile
 2         /// <summary>
 3         /// 下载文件
 4         /// </summary>
 5         /// <param name="filePath">文件路径</param>
 6         /// <param name="fileName">文件名</param>
 7         /// <param name="fileId">下载文件自增id</param>
 8         /// <param name="url">下载失败返回界面url</param>
 9         /// <returns></returns>
10         public ActionResult DownFile(string filePath, string fileName, string fileId, string url, string backUrl, string r = null)
11         {
12 
13             string strurl = "";
14             if (url != null)
15                 strurl = url;
16             if (r != null)
17                 strurl = url + "&r=" + r;
18             if (!string.IsNullOrEmpty(backUrl))
19             {
20                 strurl = strurl.Contains("?") ? strurl + "&backUrl=" + Url.Encode(backUrl) : strurl + "?backUrl=" + Url.Encode(backUrl);
21             }
22             if (string.IsNullOrEmpty(filePath) || string.IsNullOrEmpty(fileName) || string.IsNullOrEmpty(fileId))
23             {
24                 return ShowRedirectMessage("下载失败", url != null ? strurl : "/Student/TableList");
25             }
26             //绝对路径
27             filePath = Server.MapPath(filePath);
28             if (!System.IO.File.Exists(filePath))
29             {
30                 new BLL.Attachment().Delete(Convert.ToInt32(fileId));
31                 return ShowRedirectMessage("下载的文件不存在", url != null ? strurl : "/Student/TableList");
32             }
33             FileStream fs = new FileStream(filePath, FileMode.Open);
34             byte[] bytes = new byte[(int)fs.Length];
35             fs.Read(bytes, 0, bytes.Length);//读取文件
36             fs.Close();
37             Response.Charset = "UTF-8";
38             Response.ContentEncoding = System.Text.Encoding.GetEncoding("UTF-8");
39             Response.ContentType = "application/octet-stream";//以二进制流输出给浏览器
40             //attachment:作为附件下载 inline:直接打开
41             Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(fileName));
42             Response.BinaryWrite(bytes);
43             Response.End();
44             return new EmptyResult();
45         }
46         #endregion
47 
48         #region  获取附件列表 GetProFile
49         /// <summary>
50         /// 获取附件列表
51         /// </summary>
52         /// <param name="guid"></param>
53         /// <param name="attType"></param>
54         /// <param name="a"></param>
55         /// <returns></returns>
56         public static List<MvcHtmlString> GetProFile(string guid, string attType, string a = null, string url = null, string backUrl = null)
57         {
58             List<Model.Attachment> M_Att = new BLL.Attachment().GetModelList(guid, attType);
59             List<MvcHtmlString> list = new List<MvcHtmlString>();
60             string str = "";
61             foreach (var item in M_Att)
62             {
63                 str = "<a style='color:#C51616' href='/HanNeng/DownFile?filePath=" + item.FilePath + "&fileName=" + item.FileName + "&fileId=" + item.AttachmentAutoID + "&url=" + url + "&backUrl=" + backUrl + "'>" + item.FileName + "</a>";
64                 if (a != null)
65                 {
66                     str += "<a style='margin-left: 10px;' href='javascript:void()' name='deleteImg' curid='" + item.AttachmentAutoID + "' onclick="DeleteFile(this)"><img src='/Content/images/delete.png' /></a>";
67                 }
68                 list.Add(new MvcHtmlString(str));
69             }
70             return list;
71         }
72         #endregion
    下载文件

      6.在页面上的调用，设置一个全局变量var disable = false;是因为有些页面要根据权限禁用掉上传的功能。当全部加载完毕调用的是uploadify_onSWFReady方法后，如果disable为true时就禁用，为false时就可上传：

     1      var disable = false; //全局变量
 2     //文件上传
 3     function uploadfile() {
 4         var config = {
 5             id: "file_upload",
 6             formKey: "formData",
 7             formData: { 'guid': $("#GUID").val(), 'attType': 'XM-PS-101', 'url': '/ProjectInfo/ProjectInfoAdd', 'urlID': $("#ID").val(), 'backUrl': $("#backUrl").val() },
 8             fileTypeDesc: '文件',
 9             fileTypeExts: '*.jpg;*.png;*.doc;*.docx;*.xls;*.xlsx;*.pdf',
10             sfdisable: disable
11         };
12         upload(config);
13     }
    页面调用上传的方法
    1  <input type="button" name="file_upload" id="upload" style=" 84px; height: 29px;" class="uploadify-button uploadify uploadify-button-text" value="选择文件" />
2 
3   <input type="file" name="file_upload" id="file_upload" style="display:none"/>
4 <ul id="filename" class="ulfile" style="padding-left: 20px"></ul>
    页面的html

      7.最终效果图：
          


     图片

    图片

    作者：静水思寒
    出处：http://www.cnblogs.com/jingshuisihan/

    本文版权归作者和博客园共有，欢迎转载，但未经作者同意必须保留此段声明，且在文章页面明显位置给出原文连接，否则保留追究法律责任的权利。     
  • 相关阅读:
    HDU_2047——EOF字符串排序排列问题,递推
    HDU_2046——骨牌铺放问题,递推
    HDU_2045——RPG问题,递推
    HDU_2044——蜜蜂走蜂房,递推
    HDU_2043——判断密码是否安全
    HDU_2042——递归反推
    单例模式
    抽象工厂模式
    工厂方法模式
    C#调用C++DLL传递结构体数组的终极解决方案
  • 原文地址：https://www.cnblogs.com/jingshuisihan/p/4028265.html
Copyright © 2020-2023  润新知