$.ajax({
                url: url + 'sys/sysmenu/menu?token=test',
                dataType : "json",
                headers: {
                    token: token,
                  'content-type': 'application/json;charset-UTF-8' //json格式上传，后端必须req方式接受
                },
                type: "post",
                async: false,
                data:data,
                success: function(data) {
                        
                        var  menu=data.menu;
   
                        
                }
                });