小程序組件的生命周期中如何調(diào)用methods定義的方法？

以下是小程序組件代碼

methods: {
    getList: function () {
      util.get(`${config.service.host}/web/news/list_with_pub_info?channelId=${config.channelId}&page=${that.data.page}&size=${that.data.size}`, function (res) {
        that.setData({
          newsList: res.data.content,
          totalPages: res.data.totalPages
        })
      }, function (e) {
        console.log(JSON.stringify(e));
      });
     },
  },
  ready: function (options) {
    let that = this;
    this.getList();//這里調(diào)用方法會報(bào)錯(cuò)undefined，請問該如何調(diào)用呢？
  },