shopping开源项目用vue+vue-router+vuex实现电商网站基本功能

效果展示

install

• 下载代码: git clone https://github.com/chenchangyuan/shopping.git
• 安装依赖: npm install
• 启动项目: npm run dev

运行环境: node v9.11.1 npm 5.6.0

需求分析

1. 登录页面、商品列表页（网站首页）、购物车页（实现结算）、商品详情页
2. 可按颜色、品牌对商品进行筛选，单击选中，再次点击取消
3. 根据价格进行升序降序、销量降序排列
4. 商品列表显示图片、名称、销量、颜色、单价
5. 实时显示购物车数量（商品类别数）
6. 购物车页面实现商品总价、总数进行结算，优惠券打折

数据存储 & 数据处理

• product.js存放商品数据（生产环境需通过接口调用获取数据）

{
 id: 1,
 name: 'AirPods',
 brand: 'Apple',
 image: '/src/images/airPods.jpg',
 imageDetail: '/src/images/airPods_detail.jpg',
 sales: 10000,
 cost: 1288,
 color: '白色'
},

• window.localStorage实现数据存储与验证

let username = window.localStorage.getItem('username');
let password = window.localStorage.getItem('password');
if(!util.trim(this.username) || !util.trim(this.username) ){
 window.alert('账号或密码不能为空');
 return;
}
if(username === this.username && password === this.password){
 this.login = false;
 window.localStorage.setItem('loginStatus', 'login');
 this.$store.commit('getUser', this.username);
 window.alert('登陆成功，确定进入网站首页');
 window.location.href = '/list';
}else{
 window.alert('账号或密码错误');
}

数据过滤与排序处理

filteredAndOrderedList(){
 //拷贝原数组
 let list = [...this.list];
 //品牌过滤
 if(this.filterBrand !== ''){
 list = list.filter(item => item.brand === this.filterBrand);
 }
 //颜色过滤
 if(this.filterColor !== ''){
 list = list.filter(item => item.color === this.filterColor);
 }
 //排序
 if(this.order !== ''){
 if(this.order === 'sales'){
 list = list.sort((a, b) => b.sales - a.sales);
 }else if(this.order === 'cost-desc'){
 list = list.sort((a, b) => b.cost - a.cost);
 }else if(this.order === 'cost-asc'){
 list = list.sort((a, b) => a.cost - b.cost);
 }
 }
 return list;
}

实时显示应付总额与商品数

//购物车商品总数
countAll(){
 let count = 0;
 this.cartList.forEach(item => {
 count += item.count;
 });
 return count;
},
//购物车商品总价
costAll(){
 let cost = 0;
 this.cartList.forEach(item => {
 cost += this.productDictList[item.id].cost * item.count;
 });
 return cost;
}

购物车结算处理

//通知Vuex,完成下单
handleOrder(){
 this.$store.dispatch('buy').then(() => {
 window.alert('购买成功');
 })
},

vue-router & vuex

vue-router路由管理/src/views/目录下的vue组件进行设置，router-views挂载所有路由，登录界面与商品列表页面之间header做隐藏显示处理，登录状态下刷新页面跳转至列表页，其他页面设置默认跳转

跳转处理

const router = new VueRouter(RouterConfig);
//跳转前设置title
router.beforeEach((to, from, next) => {
 window.document.title = to.meta.title;
 next();
});
//跳转后设置scroll为原点
router.afterEach((to, from, next) => {
 window.scrollTo(0, 0);
});

routers配置

//商品列表路由配置
const routers = [
 {
 path: '/list',
 meta: {
 title: '商品列表'
 },
 component: (resolve) => require(['./views/list.vue'], resolve)
 },
 {
 path: '/product/:id',
 meta: {
 title: '商品详情'
 },
 component: (resolve) => require(['./views/product.vue'], resolve)
 },
 {
 path: '/cart',
 meta: {
 title: '购物车'
 },
 component: (resolve) => require(['./views/cart.vue'], resolve)
 },
 {
 path: '/login/:loginStatus',
 meta: {
 title: '购物车'
 },
 component: (resolve) => require(['./views/login.vue'], resolve)
 },
 {
 path: '*',
 redirect: '/login/login'
 }
];
export default routers;

vuex状态管理，各组件共享数据在state中设置，mutation实现数据同步，action异步加载

//配置Vuex状态管理
const store = new Vuex.Store({
 state: {
 //商品列表信息
 productList: [],
 //购物车数据，数组形式，数据元素为对象（商品id，购买数量count）
 cartList: [],
 //当前用户账号
 username: window.localStorage.getItem('username'),
 //登录状态
 loginStatus: !!window.localStorage.getItem('loginStatus'),
 },
 getters: {
 //品牌、颜色筛选
 brands: state => {
 const brands = state.productList.map(item => item.brand);
 return util.getFilterArray(brands);
 },
 colors: state => {
 const colors = state.productList.map(item => item.color);
 return util.getFilterArray(colors);
 }
 },
 //mutations只能以同步方式
 mutations: {
 //添加商品列表
 setProductList(state, data){
 state.productList = data;
 },
 //添加购物车
 addCart(state, id){
 const isAdded = state.cartList.find(item => item.id === id);
 //如果不存在设置购物车为1，存在count++
 if(isAdded){
 isAdded.count++;
 }else{
 state.cartList.push({
 id: id,
 count: 1
 })
 }
 },
 //修改购物车商品数量
 editCartCount(state, payload){
 const product = state.cartList.find(item => item.id === payload.id);
 product.count += payload.count;
 },
 //删除购物车商品
 deleteCart(state, id){
 const index = state.cartList.findIndex(item => item.id === id);
 state.cartList.splice(index, 1)
 },
 //清空购物车
 emptyCart(state){
 state.cartList = [];
 },
 getUser(state, username){
 console.log('username',username)
 state.username = username;
 },
 getLoginStatus(state, flag){
 state.loginStatus = flag;
 }
 },
 actions: {
 //异步请求商品列表，暂且使用setTimeout
 getProductList(context){
 setTimeout(() => {
 context.commit('setProductList', product_data)
 }, 500);
 },
 //购买
 buy(context){
 //生产环境使用ajax请求服务端响应后再清空购物车
 return new Promise(resolve => {
 setTimeout(() => {
 context.commit('emptyCart');
 resolve();
 }, 500);
 });
 },
 }
});

在原项目上新增了登录功能