[不懂就问]关于 nuxtjs ssr 的一个问题 - V2EX
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id4alex

[不懂就问]关于 nuxtjs ssr 的一个问题

  •  1
     
  •   id4alex Nov 16, 2020 567 views
    This topic created in 1987 days ago, the information mentioned may be changed or developed.

    目前正在学习 nuxtjs 前端开发,目前遇到一个场景, 如果客户端 cookie 中携带 token,那么页面在 server side 就把用户信息渲染好. 代码如下:

    store/index.js

    export const state = () => ({ user: null, token: null }); export const mutatiOns= { saveUser(state, userValue) { console.log("这里执行 store.user.save = " + JSON.stringify(userValue)); state.user = userValue; }, saveToken(state, token) { console.log("这里执行 store.token.save = " + token); state.token = token; } }; export const actiOns= { nuxtServerInit({ commit }, app) { const token = app.$cookies.get("token") && app.$cookies.get("token").indexOf("Bearer ") == 0 ? app.$cookies.get("token") : null; console.log('nuxtserver init 初始化 token = ', token) if (token) { commit("saveToken", app.$cookies.get("token")); this.$axios.post("/api/me").then(res => { commit("saveUser", res.data.data); }); } } }; 

    pages/index.vue

    <template> <div>{{user}}</div> </template> <script> export default { computed: { user() { console.log("这里执行 computed " + this.$store.state.token) return this.$store.state.user; }, }, } </script> <style> </style> 

    后台输出

    nuxtserver init 初始化 token = Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJhdWQiOiI0OWYxMjgwZTkxODRjZmMyIiwiZXhwIjoxNjA1NTE2OTAyfQ.ozioLM26fGVO8SfqfZllwp8j6Gy_PWoDsntPzlvXor0 14:25:53 这里执行 store.token.save = Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJhdWQiOiI0OWYxMjgwZTkxODRjZmMyIiwiZXhwIjoxNjA1NTE2OTAyfQ.ozioLM26fGVO8SfqfZllwp8j6Gy_PWoDsntPzlvXor0 14:25:53 Making request to /api/me 14:25:53 这里执行 computed null 14:25:53 这里执行 store.user.save = {"id":"49f1280e9184cfc2","nickname":"test","avatar":"https://vip1.loli.net/2020/11/15/Eqlr5T7JcmOuDWk.jpg"} 14:25:53 

    为啥在 index.vue 的 computed 里面 this.$store.state.user 会比 nuxtServerInit commit("saveUser", res.data.data)想执行啊?

    为什么会出现这个问题,以及怎么解决

    2 replies    2020-11-16 14:59:12 +08:00
    lxzxl
        1
    lxzxl  
       Nov 16, 2020   1
    你的 nuxtServerInit 没有返回 Promise, 改成 `return this.$axios.post...`
    id4alex
        2
    id4alex  
    OP
       Nov 16, 2020
    @lxzxl 老铁...破案了
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