public class UpLoadFileController : Controller

    {

        //

        // GET: /UpLoadFile/

        public ActionResult Index()

        {

            return View();

        }

        /// <summary>

        /// 上传文件【上传文件到UploadFiles文件夹】

        /// </summary>

        /// <param name="fileData"></param>

        /// <param name="Id"></param>

        /// <returns></returns>

        [AcceptVerbs(HttpVerbs.Post)]

        public ContentResult UpLoadFile(HttpPostedFileBase fileData, String Id)

        {

            ControllerContext.HttpContext.Request.ContentEncoding = Encoding.UTF8;

            ControllerContext.HttpContext.Response.ContentEncoding = Encoding.UTF8;

            ControllerContext.HttpContext.Response.Charset = "UTP-8";

            string filePath = Server.MapPath(@"/UploadFiles");

            if (!Directory.Exists(filePath))

                Directory.CreateDirectory(filePath);

            if (fileData != null)

            {

                string fileSaveName = Path.Combine(filePath, fileData.FileName);

                fileData.SaveAs(fileSaveName);

                return Content("成功");

            }

            return Content("失败");

        }

        /// <summary>

        /// 获取文件【下载】

        /// </summary>

        /// <param name="id">文件名</param>

        /// <returns></returns>

        public FilePathResult GetFile(string id)

        {

            if (string.IsNullOrEmpty(id))

            {

                return null;

            }

            id = id.Replace("__", ".");

            string path = "UploadFiles";

            string filePath = Server.MapPath(@"/" + path);

            string fileSaveName = Path.Combine(filePath, id);

            return File(fileSaveName, "image/*", id);

        }

    }

@{

    ViewBag.Title = "上传文件";

}

<script src="~/Content/uploadify/jquery.uploadify.js?ver=@DateTime.Now.Ticks"></script>

<link href="~/Content/uploadify/uploadify.css" rel="stylesheet" />

@*上传文件*@

<div>

    <input class="easyui-validatebox" type="hidden" id="Attachment_GUID" name="Attachment_GUID" />

    <input id="file_upload" name="file_upload" type="file" >

   @* <a href="javascript:void(0)" class="easyui-linkbutton" id="btnUpload" data-options="plain:true,iconCls:'icon-save'"

        onclick="javascript: $('#file_upload').uploadify('upload', '*')">上传</a>

    <a href="javascript:void(0)" class="easyui-linkbutton" id="btnCancelUpload" data-options="plain:true,iconCls:'icon-cancel'"

        onclick="javascript: $('#file_upload').uploadify('cancel', '*')">取消</a>

   <div id="fileQueue" class="fileQueue"></div>*@

     <a href="javascript:void(0)" class="easyui-linkbutton" id="btnBrowse" >浏览</a>

    <div id="div_files">

        <a id="downFile" href="#">下载文件</a>

        <img id="uploadImg" src=""/>

    </div>

    <br />

</div>

@*弹出层*@

@Html.Partial("Contact")

<script>

    $(function () {

        $("#btnBrowse").click(function () {

            PopLayout.Pop($("#uploadImg").attr("src"));

        });

        $("#file_upload").uploadify({

            height: 30,

            width: 120,

            buttonText: "选择",

            multi: false,

            swf: '/Content/uploadify/uploadify.swf',

            uploader: '@Url.Action("UpLoadFile","UpLoadFile")',

            onFallback: function () {

                alert("不支持flash");

            },

            onUploadError: function (file, errorCode, errorMsg, errorString) {

                alert("文件" + file.name + "上传失败: " + errorString);

            },

            onUploadSuccess: function (file, data, response) {

                if (true) {

                    //alert(file.name);

                    var id = file.name.replace(".", "__");;

                    $("#downFile").attr("href", "/UpLoadFile/GetFile/" + id);

                    $("#uploadImg").attr("src", "/UploadFiles/" + file.name);

                }

                //alert("文件" + file.name + "上传成功：" + data);

            }

        });

    });

</script>