school-market/wx-front/pages/ucenter/index/index.js

var util = require('../../../utils/util.js');
var api = require('../../../config/api.js');
var user = require('../../../services/user.js');
var app = getApp();

Page({
  data: {
    userInfo: {},
    isLogin: false
  },
  onLoad: function(options) {
    // 页面初始化 options为页面跳转所带来的参数
    console.log(app.globalData)

  },
  onReady: function() {

  },
  onShow: function() {

    let userInfo = wx.getStorageSync('userInfo');
    let token = wx.getStorageSync('token');

    // 页面显示
    if (userInfo && token) {
      app.globalData.userInfo = userInfo;
      app.globalData.token = token;
      this.setData({
        isLogin: true
      });
    }

    this.setData({
      userInfo: app.globalData.userInfo,
    });

  },
  onHide: function() {
    // 页面隐藏

  },
  onUnload: function() {
    // 页面关闭
  },
  goLogin() {
    if (!this.isLogin) {
      wx.navigateTo({
        url: '/pages/auth/auth'
      })
    }
  },
  exitLogin: function() {
    wx.showModal({
      title: '',
      confirmColor: '#b4282d',
      content: '退出登录？',
      success: function(res) {
        if (res.confirm) {
          wx.removeStorageSync('token');
          wx.removeStorageSync('userInfo');
          wx.switchTab({
            url: '/pages/index/index'
          });
        }
      }
    })

  }
})