javascript - 使用 Vuex 4 在 Vue 3 中设置状态数据不起作用

Question

我正在使用 Vuex 4 学习 Vue 3，我被一些我很确定它很简单但我看不到的东西困住了。
简而言之，我试图在 state 中设置一些数据让它可以在我的组件中使用它，但它不起作用。
让我给你看一下代码:
///store.js

import { createStore } from 'vuex';
import axios from 'axios';

const store = createStore({
  state: {
    user: {},
    products: []
  },
  mutations: {
    SET_USER: (state, user) => {
      state.user = user;
    },
    SET_PRODUCTS: (state, products) => {
      state.products = products;
    },
  },
  actions: {
    GET_USER: async function ({ commit }) {
      const user = await axios.get('https://coding-challenge-api.aerolab.co/user/me')
      commit('SET_USER', user)
    },
    GET_PRODUCTS: async function ({ commit }) {
      const products = await axios.get('https://coding-challenge-api.aerolab.co/products')
      commit('SET_PRODUCTS', products)
    },
  }
})

export default store;

///我的组件.vue

<template>
  <div class='bg-aerolab-main'>
    {{ user }} {{ productsTest }}
  </div>
</template>

import { computed } from "vue";
import { useStore } from 'vuex';

export default {
  setup() {
    const store = useStore();
    const user = computed(() => store.state.user);
    const productsTest = computed(() => store.state.products);
    console.log(user);
    console.log(productsTest);

    return {
      user,
      productsTest
    };
  }
}

///main.js

import { createApp } from 'vue'
import App from './App.vue'
import './index.css'
import axios from 'axios'
import VueAxios from 'vue-axios';
import store from './store';

const app = createApp(App)
  app.use(VueAxios, axios)
  app.use(store)
  app.mount('#app')

当然是 {{ users }}和 {{ productsTest }}绑定(bind)不显示任何数据以及console.logs。
PD:我试图直接在我的组件中获取数据并且它正在工作，因此它与从 API 获取的数据无关。

Answer 1

您必须在挂载的钩子(Hook)中调度该操作:

import { computed , onMounted} from "vue";
import { useStore } from 'vuex';

export default{
  setup() {
    const store = useStore();
    const user = computed(() => store.state.user);
    const productsTest = computed(() => store.state.products);
   
  onMounted(()=>{
    store.dispatch('GET_USER');
    store.dispatch('GET_PRODUCTS');
  })
    return {
      user,
      productsTest
    };
  }
}