Javascript 使用Vuex 4将数据设置为不在Vue 3中工作的状态
我正在用Vuex 4学习Vue 3,我很确定它很简单,但我看不出来 简而言之,我正试图将一些数据设置为Javascript 使用Vuex 4将数据设置为不在Vue 3中工作的状态,javascript,vue.js,vuex,vuejs3,vuex4,Javascript,Vue.js,Vuex,Vuejs3,Vuex4,我正在用Vuex 4学习Vue 3,我很确定它很简单,但我看不出来 简而言之,我正试图将一些数据设置为状态,以便在我的组件中使用它,但它不起作用 让我向您展示代码: ///store.js import { createStore } from 'vuex'; import axios from 'axios'; const store = createStore({ state: { user: {}, products: [] }, mutations: {
状态
,以便在我的组件中使用它,但它不起作用
让我向您展示代码:
///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;
///MyComponent.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
};
}
}
当然,{{users}}
和{{productsTest}}
绑定没有显示任何数据以及console.log
PD:我已经尝试直接在我的组件中获取数据,它正在工作,因此它与从API获取的数据无关
任何建议都将被认真考虑
提前谢谢你 您必须在挂载的钩子内分派该操作:
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
};
}
}
从main.js获取数据
我确信,如果您正在从组件获取数据,所选答案将正常工作。但是,如果您希望按照OP的要求从main.js
获取数据,或者app.js
如果您将Vue3与Laravel一起使用,则应在createApp()
函数中使用mounted()
const app = createApp({
mounted(){
store.dispatch('YOUR_ACTION') // GET_USER or GET_PRODUCTS in OP's case
}
});
请记住在调用之前设置Vuex存储,以便定义存储
在您的组件中
您可以访问,如下所示:
如果你觉得这个答案在任何方面对你都有用,请投票吧,因为我正在努力提高我在StackOverflow上的声誉。非常感谢。
const app = createApp({
mounted(){
store.dispatch('YOUR_ACTION') // GET_USER or GET_PRODUCTS in OP's case
}
});
import { computed } from "vue";
import { useStore } from "vuex";
setup() {
const store = useStore();
return {
products: computed(() => store.state.YOUR_STATE),
//replace YOUR_STATE with your own. In OP's case, it's user or products
};
}