ball-applet/pages/index/index.js

const app = getApp()
Page({
    data: {
        frameStyle: { useTop: true, name: '系统', leftArrow: false, useBar: false },
    },
    toCommon: function (e) {
        const { route } = e.currentTarget.dataset;
        if (route) wx.navigateTo({ url: `/pages/${route}` });
    },
    /**
     * 生命周期函数--监听页面加载
     */
    onLoad: function (options) { },
    // 监听用户是否登录
    watchLogin: async function () {
        // 监听用户是否登录，
        wx.getStorage({
            key: 'user',
            success: async res => {
                if (res.data) wx.redirectTo({ url: '/pages/school/index' })
                // /pagesSchool/coaAdmin/course/tpStudentadd
                // /pagesSchool/coaAdmin/course/tpStudent
            },
            fail: async res => {
                wx.login({
                    success: async (arr) => {
                        if (app.globalData?.wxInfo?.openid) { await this.toLogin(app.globalData?.wxInfo?.openid); return; }
                        const { code: js_code } = arr;
                        const aee = await app.$get('/wechat/api/login/app', { js_code: js_code, config: 'newCourtApp' });
                        if (aee.errcode === 0 && aee.data?.openid) {
                            const openid = aee.data.openid;
                            app.globalData.wxInfo = { openid };
                            await this.toLogin(openid);
                        } else {
                            wx.showToast({ title: `${aee.errmsg}`, icon: 'fail', duration: 2000 });
                            wx.redirectTo({ url: '/pages/register/index' });
                        }
                    },
                });
            }
        })
    },
    async toLogin(openid) {
        const res = await app.$post('/user/wxAppLogin', { openid });
        if (app.$checkRes(res)) {
            const { data } = res;
            // 没有用户,去注册
            if (!data) wx.redirectTo({ url: '/pages/register/index' });
            // 有用户,存起来,跳转
            else {
                wx.setStorageSync('user', data);
                wx.redirectTo({ url: '/pages/school/index' });
            }
        }
    },
    /**
     * 生命周期函数--监听页面初次渲染完成
     */
    onReady: function () {

    },

    /**
     * 生命周期函数--监听页面显示
     */
    onShow: function () {
        const that = this;
        // 监听用户是否登录
        that.watchLogin();
    },

    /**
     * 生命周期函数--监听页面隐藏
     */
    onHide: function () {

    },

    /**
     * 生命周期函数--监听页面卸载
     */
    onUnload: function () {

    },

    /**
     * 页面相关事件处理函数--监听用户下拉动作
     */
    onPullDownRefresh: function () {

    },

    /**
     * 页面上拉触底事件的处理函数
     */
    onReachBottom: function () {

    },

    /**
     * 用户点击右上角分享
     */
    onShareAppMessage: function () {

    }
})