VUEX刷新頁面參數丟失的問題

App.vue文件夾加入以下代碼

  created() {
    //在頁面加載時讀取sessionStorage裏的狀態信息
    if (localStorage.getItem("store") ) {
        this.$store.replaceState(Object.assign({}, this.$store.state,JSON.parse(localStorage.getItem("store"))))
    }
    //在頁面刷新時將vuex裏的信息保存到sessionStorage裏
    window.addEventListener("beforeunload",()=>{
        localStorage.setItem("store",JSON.stringify(this.$store.state))
    })
  }