{
"openid": " OPENID",
"nickname": "NICKNAME",
"sex": "1",
"province": "PROVINCE",
"city": "CITY",
"country": "COUNTRY",
"headimgurl": "http://wx.qlogo.cn/mmopen/g3MonUZtNHkdmzicIlibx6iaFqAc56vxLSUfpb6n5WKSYVY0ChQKkiaJSgQ1dZuTOgvLLrhJbERQQ4eMsv84eavHiaiceqxibJxCfHe/46",
"privilege": ["PRIVILEGE1", "PRIVILEGE2"],
"unionid": "o6_bmasdasdsad6_2sgVt7hMZOPfL"
}
这是官方的返回文档
{"OpenId":"oIxzN6uqu4Jp53Fldb29XSUq7hFo","NickName":"Summer","Sex":0,"Province":"","City":"","Country":"","HeadImgUrl":"https://thirdwx.qlogo.cn/mmopen/vi_32/AkShuCA3Wf1k7h2lnheJfMOVXvmGYlNjzgMJnEo8vMsZXalzTBIJLibVD8Zh0Kdk5Llo3RYhKNw9hGEx9Zw1xtj1HygbibwHUgAJ6Q3emjqec/132","Pricilege":[]}
这是传回来的返回数据 我有个已经认证的公众号绑定了这个第三方平台并且已经授权 但是我点击他们俩的链接返回的信息都没有unionId 请问这是为什么 该如何解决
你好,小程序/公众号绑定open账号才会返回unionID,请查看文档说明:https://developers.weixin.qq.com/doc/oplatform/Third-party_Platforms/2.0/product/Open_Platform_Account_Management.html
注意区分基本概念:https://developers.weixin.qq.com/doc/oplatform/Third-party_Platforms/2.0/getting_started/terminology_introduce.html#_2%E3%80%81%E2%80%9C%E7%BB%91%E5%AE%9A%E2%80%9D-VS-%E2%80%9C%E6%8E%88%E6%9D%83%E2%80%9D
你搞错了,不是第三方平台是微信开放平台账号。截图你的公众号后台配置就知道了。

unionid和第三方平台没有任何关系。
知道这个就行了。然后你自然会找到unionid只和开放平台有关。
理解这个:
unionid和第三方平台无关,
unionid只和开放平台有关。
用户已经关注两个公众号 授权是https://open.weixin.qq.com/connect/oauth2/authorize?appid={0}&redirect_uri={1}&response_type=code&scope=snsapi_userinfo&state=/&component_appid={2}#wechat_redirect snsapi_userinfo授权