微信小程序获取用户openid和session_key

微信小程序获取用户openid和session_key

wxml:

<button bindtap='getOpenIdTap'>获取用户唯一标识openid</button>
<text>openid:{{openid}}
 </text>
<text>session_key:{{session_key}}</text>

js:

const APP_ID = 'wx0843bxxxxxxxf6fc'; //输入小程序appid  
const APP_SECRET = '637e11bf3dxxxxxxxxx9f9b1ef5221'; //输入小程序app_secret  
var OPEN_ID = '' //储存获取到openid  
var SESSION_KEY = '' //储存获取到session_key 
Page({
  getOpenIdTap: function() {
    var that = this;
    wx.login({
      success: function(data) {
        console.log(data);
        wx.request({
          //获取openid接口
          url: 'https://api.weixin.qq.com/sns/jscode2session?appid=' + APP_ID + '&secret=' + APP_SECRET + '&js_code=' + data.code + '&grant_type=authorization_code',
          data: {},
          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  
            that.setData({
              openid: OPEN_ID,
              session_key: SESSION_KEY
            });
          }
        })
      }
    })
  }
})