微信返回的数据如下:

{

        "nickname": "微信用户",

        "sex": 0,

        "province": "",

        "city": "",

        "country": "",

        "headimgurl": "https://thirdwx.qlogo.cn/mmopen/vi_32/Q3auHgzwzM6cp2WMkYmiaBZYVT6oUr2W4r4o7CQgzqStQ0BibiaEXwdEnMW9yicJd0AtciaImYrz0icibZ6rYUnQjweZQ/132",

        "privilege": [],

        "unionid": null,

        "openid": "***"

    }