school_meal_wxapp/pages/index/index.js

// index.js
// 获取应用实例
const app = getApp()
const { axios } = app.globalData;
Page({
  data: {
    // 商品列表
    shoplist: [],
  },
  // 点击商品查看详情
  ShopSuccess (e) {
    let { id } = e.currentTarget.dataset;
    wx.navigateTo({
      url: `/pages/detail/detail?data=${JSON.stringify({ id })}`,
    })
  },
  //加载商品数据 模拟5条
  PageCount: 3,//总页数
  Page: 1,//当前页数
  ShopRequest () {
    if (this.Page > this.PageCount) return false;
    let that = this, { shoplist } = this.data;
    axios({
      url: "/commodity/wx_commodity/",
      method: "get",
      data: {
        page: that.Page,
        limit: 10,
      },
      success (res) {
        let { data, totalPage } = res.data;
        that.PageCount = totalPage;
        that.Page++;
        data.forEach(item => {
          shoplist.push({
            id: item.id,
            price: item.amount,
            desc: item.introduce,
            imgurl: item.list_image,
            title: item.name
          })
        })
        that.setData({
          shoplist
        })
        wx.stopPullDownRefresh();
      }
    })
  },
  onLoad () {
    wx.lxd.Ctr({
      // nav
      title: "首页", //标题
      back: false,//返回按钮，tabber必须false（除非会改）
      bgc: false,//使用更改后的颜色;配合json使用
      // tabber
      tabber: true, // 显示
      active: 0,//活动值
    })
  },
  onShow () {
    this.ShopRequest();
  },

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh: function () {
    this.PageCount = 1;
    this.Page++;
    this.ShopRequest();
  },

  /**
  * 页面上拉触底事件的处理函数
  */
  onReachBottom: function () {
    this.ShopRequest();
  },

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

  }
})