var upLoad = function () {

    var currentNum = 0;

    var totalNum = 0;

    var _initEvent = function () {

        initSwfu();

    }

    var initSwfu = function () {

        var swfu;

        var file_queue_limit = 20;//队列1，每次只能上传1个,若是1个以上，上传后的样式是叠加图片

        swfu = new SWFUpload({

            upload_url: "/UpLoad/LocalReceive",

            post_params: { "Service": "MyServiceName", "Token": "b2ed46cd1bee4e5d816abdb1ec31b0f8" },

            file_size_limit: "2 MB", //最大2M

            file_types: "*.jpg;*.png;*.gif;*.bmp", //设置选择文件的类型

            file_types_description: "JPG Images", //描述文件类型

            file_upload_limit: "0", //0代表不受上传个数的限制

            file_queue_limit: file_queue_limit,

            file_queue_error_handler: fileQueueError,

            file_dialog_complete_handler: fileDialogComplete, //当关闭选择框后,做触发的事件

            upload_progress_handler: uploadProgress, //处理上传进度

            upload_error_handler: uploadError, //错误处理事件

            upload_success_handler: uploadSuccess, //上传成功够,所处理的时间

            upload_complete_handler: uploadComplete, //上传结束后,处理的事件

            button_image_url: "/JS/SWFUpload/images/XPButtonNoText_160x22.png",

            button_placeholder_id: "spanButtonPlaceholder",

            button_width: 160,

            button_height: 22,

            //button_text: '',

            //button_text_style: '.spanButtonPlaceholder { font-family: Helvetica, Arial, sans-serif; font-size: 14pt;} ',

            button_text: '<span class="button">选择图片<span class="buttonSmall">(2 MB Max)</span></span>',

            button_text_style: '.button { font-family: Helvetica, Arial, sans-serif; font-size: 14pt; } .buttonSmall { font-size: 10pt; }',

            button_text_top_padding: 1,

            button_text_left_padding: 5,

            button_window_mode: SWFUpload.WINDOW_MODE.TRANSPARENT,

            button_cursor: SWFUpload.CURSOR.HAND,

            flash_url: "/JS/SWFUpload/swfupload.swf",    // Relative to this file

            custom_settings: {

                upload_target: "divFileProgressContainer"

            },

            debug: false //是否开启日志

        });

    }

    //swfupload插件上传成功回调事件

    function uploadSuccess(file, serverData) {

        var jsonData = eval('(' + serverData + ')');//{"Time":"\/Date(1481627678361)\/","Code":"100","Message":"成功","Url":"/UpLoadFile/2016/12/13/4E69D7D19EFAFC3F7B927887EA5A2804.jpg"}

        if (jsonData.Code != "100") {

            alert(jsonData.Message);

        } else {

            if (currentNum >= 10) {

                alert("上传图片不能超过10张");

                return;

            }

            totalNum++;

            currentNum++;

            $("#imgNum").html("当前" + currentNum + "张图片");

            var imgHtml = "";

            imgHtml += "<div class=\"divContent\">";

            imgHtml += " <div class=\"divDiv\">";

            imgHtml += "<img src=\"" + jsonData.Url + "\" class=\"img\" urlData=\"" + jsonData.Url + "\"/>";//url需要改成本地配自己的域名

            imgHtml += "</div>";

            imgHtml += "<img class=\"delImg\" src=\"/Content/Img/del.png\" id=\"" + totalNum + "\">";

            imgHtml += "</div>";

            $("#imgUrl").append(imgHtml);

            $("#" + totalNum + "").click(function () {

                $(this).parent().remove();

                currentNum--;

                $("#imgNum").html("当前" + currentNum + "张图片");

            });

        }

    }

    //swfupload插件上传失败回调事件

    function uploadError(file, serverData) {

        alert("上传失败");

    }

    return {

        init: function () {

            _initEvent();

        }

    }

}();

 public ActionResult LocalReceive()

        {

            string token = Request["token"];

            string service = Request["service"];

            HttpPostedFileBase file = Request.Files["FileData"];

            string fileName = Path.GetFileName(file.FileName);

            string url = HttpContext.Request.Url.Authority;

            string upLoadUrl = "http://" + url + "/ReceiveFile/Index";

            string boundry = "----------------------------------" + DateTime.Now.Ticks.ToString("x");//boundary是分隔符 因为上传文件不在使用原有的http协议了。请求内容不再可能以 x = y方式发送了。而使用了 分隔符 字段内容 分隔符号 字段内容2 而boundary就是指定分隔符号的标志。

            try

            {

                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(upLoadUrl);

                request.ContentType = "multipart/form-data;boundary=" + boundry;//设置二进制方式传输

                request.Method = "POST";

                request.KeepAlive = true;

                request.Credentials = CredentialCache.DefaultCredentials;//获取或设置请求的身份验证信息。

                MemoryStream stream = new MemoryStream();

                byte[] line = Encoding.UTF8.GetBytes("\r\n--" + boundry + "\r\n");

                #region 传文本参数

                Dictionary<string, string> paramDic = new Dictionary<string, string>();

                paramDic.Add("Service", service);

                paramDic.Add("Token", token);//上传注掉

                string paramTempalte = "\r\n--" + boundry + "\r\nContent-Disposition: form-data;name=\"{0}\";\r\n\r\n{1}";

                foreach (var item in paramDic)

                {

                    string paramStr = string.Format(paramTempalte, item.Key, item.Value);

                    byte[] paramByte = Encoding.UTF8.GetBytes(paramStr);

                    stream.Write(paramByte, , paramByte.Length);

                }

                stream.Write(line, , line.Length);

                #endregion

                #region 传文件

                Stream fileReceiveStream = file.InputStream;//测试是否可以合并

                byte[] fileByte = new byte[fileReceiveStream.Length];

                fileReceiveStream.Read(fileByte, , fileByte.Length);

                fileReceiveStream.Close();

                string fileHeadTemplate = "Content-Disposition: form-data;name=\"{0}\";filename=\"{1}\"\r\nContent-Type:application/octet-stream\r\n\r\n";

                string fileHeadStr = string.Format(fileHeadTemplate, "FileData", fileName);

                byte[] fileHeadByte = Encoding.UTF8.GetBytes(fileHeadStr);

                stream.Write(fileHeadByte, , fileHeadByte.Length);

                stream.Write(fileByte, , fileByte.Length);

                stream.Write(line, , line.Length);

                #endregion

                #region 结束上传

                request.ContentLength = stream.Length;

                Stream requestStream = request.GetRequestStream();

                stream.Position = 0L;

                stream.CopyTo(requestStream);

                stream.Close();

                requestStream.Close();

                #endregion

                #region 获取返回

                HttpWebResponse responseReceive = request.GetResponse() as HttpWebResponse;

                Stream streamReceive = responseReceive.GetResponseStream();

                StreamReader streamReader = new StreamReader(streamReceive, Encoding.UTF8);

                string content = streamReader.ReadToEnd();

                #endregion

                JavaScriptSerializer js = new JavaScriptSerializer();

                UpLoadFileOut upLoadFileOut = js.Deserialize<UpLoadFileOut>(content);

                return Json(upLoadFileOut);

            }

            catch (Exception ex)

            {

                return Json(new { Code = "", Message = "服务器内部错误", Exception = ex.Message });

            }