ext_json：

{"extEnable":true,"extAppid":"xxxxxxxxxxxxx","entryPagePath":"pages/tabBar/user/view/user/user","tabBar":{"list":[{"text":"个人中心","iconPath":"/images/hotel_no.png","selectedIconPath":"/images/hotel_select.png","pagePath":"pages/tabBar/user/view/user/user","origin_pagePath":"pages/tabBar/user/view/user/user"},{"text":"商城","iconPath":"/images/index_no.png","selectedIconPath":"/images/index_select.png","pagePath":"pages/tabBar/product/index/index","origin_pagePath":"pages/tabBar/product/index/index"}]}}