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Vuex实现简单购物车
简介本文实例为大家分享了Vuex实现简单购物车的具体代码，供大家参考，具体内容如下文件结构App.vue
Shopping Cart Demo
Products:
My
本文实例为大家分享了Vuex实现简单购物车的具体代码，供大家参考，具体内容如下
文件结构
App.vue
<template>
<div id="app">
<h3>Shopping Cart Demo</h3>
<hr>
<h4>Products:</h4>
<ProductList />
<hr>
<h4>My Cart</h4>
<ShoppingCart />
</div>
</template>
<script>
import ProductList from '@/components/ProductList';
import ShoppingCart from '@/components/ShoppingCart';
export default {
components: {
ProductList,
ShoppingCart
}
}
</script>
Products.vue
<template>
<div>
<ul v-for="item in products" :key="item.id">
<li>
{{ item.title }} - {{ item.price }} 库存： {{ item.inventory }}<br>
<button :disabled="!item.inventory" @click="addToCart(item)">add to cart</button>
</li>
</ul>
</div>
</template>
<script>
import { mapGetters, mapActions } from 'vuex';
export default {
computed: {
// ...mapGetters('products',{
// products: 'allProducts'
// })
...mapGetters({
products: 'products/allProducts'
})
},
methods: {
...mapActions('cart',['addToCart'])
},
created() {
this.$store.dispatch('products/getAllProducts');
}
}
</script>
ShoppingCart.vue
<template>
<div>
<ul v-for="item in products" :key="item.id">
<li>{{ item.title }} *{{ item.quantity }}</li>
</ul>
<div>total: {{ total }}</div>
</div>
</template>
<script>
import { mapGetters } from 'vuex';
export default {
computed: {
...mapGetters('cart', {
products: 'cartProducts',
total: 'cartTotalPrice'
})
}
}
</script>
modules/products.js
import api from '../../api';
const state = {
all: []
}
const getters = {
allProducts: state => state.all
}
const actions = {
// 获取初始商品数据
getAllProducts({ commit }) {
api.getProducts(products => commit('setProducts', products));
}
}
const mutations = {
setProducts(state, products) {
state.all = products;
},
// 减少该商品库存
decreamentInventory(state, { id }) {
let productItem = state.all.find(item => item.id === id);
productItem.inventory --;
}
}
export default {
namespaced: true,
state,
getters,
actions,
mutations
}
modules/cart.js
const state = {
addedList: []
}
const getters = {
cartProducts(state, getters, rootState) {
return state.addedList.map((item, index) => {
let productItem = rootState.products.all.find(product => product.id === item.id);
return {
title: productItem.title,
price: productItem.price,
quantity: item.quantity
}
})
},
cartTotalPrice(state, getters) {
return getters.cartProducts.reduce((total, product) => {
return total + (product.price * product.quantity);
}, 0);
}
}
const actions = {
addToCart({ state, commit }, product) {
if (product.inventory > 0) {
let productItem = state.addedList.find(item => item.id === product.id);
if (productItem) {
commit('increamentItemQuantity', productItem);
} else {
commit('pushItemToCart', product);
}
commit('products/decreamentInventory', product, { root: true });
}
}
}
const mutations = {
// 增加购物车中同等商品的数量
increamentItemQuantity(state, { id }) {
let productItem = state.addedList.find(item => item.id === id);
productItem.quantity ++;
},
// 将商品加入购物车
pushItemToCart(state, { id }) {
state.addedList.push({
id,
quantity: 1
})
},
}
export default {
namespaced: true,
state,
getters,
actions,
mutations
}
store/index.js
import Vue from 'vue';
import Vuex from 'vuex';
import cart from './modules/cart';
import products from './modules/products';
Vue.use(Vuex);
export default new Vuex.Store({
modules: {
cart,
products
}
});
main.js
import Vue from "vue";
import App from "@/components/App.vue";
import store from "@/store";
Vue.config.productionTip = false;
new Vue({
store,
render: h => h(App)
}).$mount("#app");
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
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