(function () {

      var iframe = '<iframe name="jqUploadIframe" style="display: none"></iframe>';

      function getSearchObjct(window) {

          var search;

          try {

              search = window.location.search.substr();

          } catch (e) {

              return null;

          }

          if (search == "") return "";

          var keyValue = search.split("&");

          var result = {};

          for (var i = ; i < keyValue.length; i++) {

              var onek = keyValue[i].split("=");

              result[onek[]] = decodeURI(onek[]);

          }

          return result;

      }

      function getRootPath() {

          var curWwwPath = window.document.location.href;

          var pathName = window.document.location.pathname;

          var pos = curWwwPath.indexOf(pathName);

          var localhostPaht = curWwwPath.substring(, pos);

          var projectName = pathName.substring(, pathName.substr().indexOf('/') + );

          return (localhostPaht + projectName);

      }

      var methods = {

          //跨域上传

          crossDomain: function (op) {

              this.attr("target", "jqUploadIframe");

              var $iframe = $(iframe);

              var val = "window.location.href='" + getRootPath() + "/jqUpload32495982348952?data=massage'";

              this.append('<input type="hidden" class="jqUpload-localhostname" ' +

                      'name="uploadCall" value="' + val + '"/>');

              $iframe[].onload = function () {

                  var searchData = getSearchObjct(this.contentWindow);

                  if (searchData == "") {

                      return;

                  } else if (searchData == null) {

                      op.error();

                  } else if (typeof searchData == "object") {

                      op.success(searchData.data);

                  }

                  $iframe.remove();

                  $(".jqUpload-localhostname").remove();

              }

              this.append($iframe);

              $(this).submit();

          }

      }

      $.fn.jqAjaxUpload = function (op) {

          methods.crossDomain.apply(this, [op])

      }

  })()

  //需要提交的表单
  var form = $("<form action='http://www.cnblogs.com/GoCircle/SaveUploadedFile' method='post' enctype='multipart/form-data'></form>");

  form.append($("<input name='formFile' value='" + clearBase64 + "' />"));

  form.append($("<input name='filename' value='" + fileName + "' />"));

  form.append($("<input name='maintainID' value='" + maintainid + "' />"));

  $('#iframeArea').append(form);//必须要追加到当前html页中

  $(form).jqAjaxUpload({

      isCrossDomain: true,

      success: function (result) {

      },

      error: function () {

      }

  })

　　 [AllowAnonymousAttribute]//允许所有请求
　　 [HttpPost]

   public ActionResult SaveUploadedFile(String formFile, String filename, String maintainID)

   {
       //这里必须为这种格式

       return Content("<script>" + Request["uploadCall"].Replace("massage", isSavedSuccessfully) + "</script>");

   }