applet/template/login/index.js

Page({
  dever: getApp().dever,
  data: {
    //判断小程序的API，回调，参数，组件等是否在当前版本可用。
    canIUse: wx.canIUse('button.open-type.getUserInfo')
  },
  onLoad: function (options) {
    // 查看是否授权
    wx.getSetting({
      success(res) {
        if (res.authSetting['scope.userInfo']) {
          // 已经授权，可以直接调用 getUserInfo 获取头像昵称
          wx.getUserInfo({
            success: function (res) {
              console.log(res.userInfo)
            }
          })
        }
      }
    })
  },
  //微信授权回调
  bindGetUserInfo: function (e) {
    var that = this;
    if (e.detail.userInfo) {
      console.log(e.detail.userInfo);
      wx.login({
        success: function (res) {
          if (res.code) {
            that.doLogin(res.code);
          } else {
            console.log(res.errMsg);
          }
        }
      })
    } else {
      console.log("拒绝了授权");
    }
  },
  doLogin: function(wxCode){
    var that = this;
    this.dever.request("/wxLogin", {code: wxCode}, {
      success: function (data, res) {
        that.dever.goBack();
      }
    }, "POST");
  }

})