授权认证后获取的微信信息不完整，只有昵称与openid没有其他信息：

{"country":"","unionid":"owRFKwifLCtqY3LzC0REo7csH39w","province":"","city":"","openid":"o6OOluKIxMPQ1b62KO6coSgrMvv8","sex":0,"nickname":"昨天","headimgurl":"","language":"zh_CN","privilege":[]}