mui请求数据

var rh = new Object();
                    rh.ReqId = "ls123";
                    rh.Salt = "sssseee";

                    var rb = new Object();
                    rb.CatId = "00001";

                    var jn = new Object();
                    jn.ReqHead = rh;
                    jn.ReqBody = rb;

                    var sendData = JSON.stringify(jn);

                    console.log("------", sendData);

                    mui.ajax("http://123.207.88.84:8080/zdm/AppApi/Search/CategoryList", {
                        data: sendData,
                        dataType: ‘json‘, //服务器返回json格式数据
                        type: ‘post‘, //HTTP请求类型
                        timeout: 10000, //超时时间设置为10秒；
                        headers: {
                            ‘Content-Type‘: ‘application/json‘
                        },
                        success: function(data) {
                            //服务器返回响应，根据响应结果，分析是否登录成功；
                            _this.message = data;
                        },
                        error: function(xhr, type, errorThrown) {
                            //异常处理；
                            console.log(type);
                            alert(type);
                        }
                    });