wx.login({

success: function(res) {

wx.request({

//获取openid接口

url: ‘https://api.weixin.qq.com/sns/jscode2session’,

data: {

appid: APP_ID,

secret: APP_SECRET,

js_code: res.code,

grant_type: ‘authorization_code’

},

method: ‘GET’,

success: function(res) {

console.log(res.data)

OPEN_ID = res.data.openid; //获取到的openid

SESSION_KEY = res.data.session_key; //获取到session_key                    

}

})

}

})