09_01.修改购买数量&删除功能

1. 项目分析

2. 项目结构：

3. 代码：

• src/component/common/footer.vue

• src/component/common/header.vue

• src/component/common/index.js

// 编写属于自己的公共Vue组件库
import HeaderComponent from './header.vue';
import FooterComponent from './footer.vue';
import NumboxComponent from './numbox.vue';

// Vue插件要求提供一个install方法, 这个方法会被注入Vue
// 需要我们调用Vue的filter component directive去扩展功能
export default {
  install(Vue) {
    Vue.component('app-header', HeaderComponent);
    Vue.component('app-footer', FooterComponent);
    Vue.component('app-numbox', NumboxComponent);
  }
};

• src/component/common/numbox.vue

• src/component/goods/son/intro.vue

• src/component/goods/goods_detail.vue

• src/component/goods/goods_list.vue

• src/component/home/home.vue

• src/component/news/news_detail.vue

• src/component/news/news_list.vue

• src/component/photo/photo_detail.vue

• src/component/photo/photo_list.vue

• src/component/shopcart/shopcart.vue

• src/component/App.vue

• src/component/filter/date.js

export default function(time) {
    let date = new Date(time);
    return `${date.getFullYear()}-${date.getMonth() + 1}-${date.getDate()}`;
};

• src/component/filter/index.js

import DateFilter from './date.js';

export default {
    install(Vue) {
        Vue.filter('date', DateFilter);
    }
};

• src/component/js/api_config.js

const domain = 'http://vue.studyit.io/api';

export default {

  // 获取轮播图的接口
  getLunbo: `${domain}/getlunbo`,

  // 新闻相关接口
  getNL: `${domain}/getnewslist`,
  getND: `${domain}/getnew/`,             // 该接口后面需要一个id

  // 图片相关接口
  photoC: `${domain}/getimgcategory/`,
  photoL: `${domain}/getimages/`,      // 该接口后面需要一个分类id: /getimages/:id
  photoD: `${domain}/getimageinfo/`,   // 该接口后面需要一个图片id: /getimageinfo/:id
  photoT: `${domain}/getthumimages/`,  // 该接口后面需要一个图片id: /getthumimages/:id

  // 商品相关接口
  goodsL: `${domain}/getgoods/`,          // 该接口后面需要一个页码: /getgoods/?pageindex=number
  goodsD: `${domain}/goods/getdesc/`,     // 该接口后面需要一个商品id: /getdesc/:id
  goodsT: `${domain}/getthumimages/`,     // 该接口后面需要一个商品id: /getthumimages/:id
  goodsP: `${domain}/goods/getinfo/`,           // 该接口后面需要一个商品id: /getinfo/:id

  // 购物车相关接口
  shopcL: `${domain}/goods/getshopcarlist/`,  // 该接口后面需要一串id: /getshopcarlist/:ids

  // 评论相关接口
  commentL: `${domain}/getcomments/`,     // 该接口后面需要一个id: /getcomments/:id
  commentS: `${domain}/postcomment/`,     // 该接口后面需要一个id: /postcomment/:id, 该需要content内容
};

• src/component/js/main.js

// from后面的路径, 如果含有./ ../那么就相对于当前文件找文件
// 如果没有, 那么就会去node_modules里面找对应的包
// 1.1 导入第三方包
import Vue from 'vue';
import MintUi from 'mint-ui';
import 'mint-ui/lib/style.css';
import Common from '../component/common';  // 自动找到index.js引入
import 'mui/dist/css/mui.css';
import 'mui/examples/hello-mui/css/icons-extra.css';
import axios from 'axios';
import VueRouter from 'vue-router';
import Filter from '../filter'             // 自动找到index.js引入
import '../less/index.less';
import VuePP from 'vue-picture-preview';

// 1.2 启用vue插件
Vue.use(MintUi);
Vue.use(Common);
Vue.use(VueRouter);
Vue.use(Filter);
Vue.use(VuePP);

// 2.1 导入配置
import routerConfig from '../router'    // 自动找到index.js引入
import apiConfig from './api_config.js'

// 2.2 扩展实例成员
Vue.prototype.axios = axios;   // 把axios库放置到原型, 将来其他组件直接可以拿到axios对象
Vue.prototype.api = apiConfig;

// 2.3 导入根组件
import AppComponent from '../component/App.vue';

// 2.4 渲染根组件, 启动项目
new Vue({
  el: '#app',
  render(createNode) {
    return createNode(AppComponent);
  },
  router: new VueRouter(routerConfig)
});

• src/component/js/storage.js

export default {

  // localStorage.setItem的封装
  set(key, val) {
    localStorage.setItem(key, JSON.stringify(val));
  },

  // localStorage.getItem的封装
  get(key) {
    let val = localStorage.getItem(key);
    // 先尝试着解析数据, 成功了就返回解析后的值, 不成功就原物返回
    try {
      val = JSON.parse(val);
    } finally {
      return val;
    }
  },

  // 清除所有本地存储的数据
  clear() {
    localStorage.clear();
  }

};

• src/component/less/index.less

.mui-card-footer img {
    width: 100%;
}

.mui-card img {
    width: 100%;
    height: auto;
}

• src/component/router/index.js

// 这里对外导出一个路由配置对象
import HomeComponent from '../component/home/home.vue';
import NewsListComponent from '../component/news/news_list.vue';
import NewsDetailComponent from '../component/news/news_detail.vue';
import PhotoListComponent from '../component/photo/photo_list.vue';
import PhotoDetailComponent from '../component/photo/photo_detail.vue';
import GoodsListComponent from '../component/goods/goods_list.vue';
import GoodsDetailComponent from '../component/goods/goods_detail.vue';
import ShopcartComponent from '../component/shopcart/shopcart.vue';

export default {
  linkActiveClass: 'mui-active',
  routes: [
    // 首页路由配置
    { path: "/", redirect: "/index" },
    { name: "i", path: "/index", component: HomeComponent },

    // 新闻路由配置
    { name: "nl", path: "/news/list", component: NewsListComponent },
    { name: "nd", path: "/news/detail/:id", component: NewsDetailComponent },

    // 图片分享相关路由
    { name: "pl", path: '/photo/list/:id', component: PhotoListComponent },
    { name: "pd", path: '/photo/details/:id', component: PhotoDetailComponent },

    // 商品相关路由
    { name: "gl", path: '/goods/list/', component: GoodsListComponent },
    { name: "gd", path: '/goods/detail/:id', component: GoodsDetailComponent },

    // 购物车相关路由
    { name: "sc", path: '/shopcart', component: ShopcartComponent },
  ]
};

• src/index.html

• .babelrc

{
    "presets": [ "env" ],
    "plugins":["transform-runtime"]
}

• gitignore

# 忽略第三方包, 他们已经记录在package.json文件中了
/node_modules

# 忽略打包后的文件, 因为我们的项目核心是源代码
/dist

# 忽略隐藏文件
.* 

# 不忽略git配置文件和babel配置文件
!.gitignore
!.babelrc

• webpack.config.js

const path = require('path');
const HtmlWP = require('html-webpack-plugin');
const CleanWP = require('clean-webpack-plugin');

module.exports = {
  // 打包的入口文件
  entry: path.resolve(__dirname, './src/js/main.js'),
  // 输出
  output: {
    path: path.resolve(__dirname, './dist'),
    filename: 'bundle.js'
  },
  // 插件配置
  plugins: [
    new HtmlWP({
      template: './src/index.html',
      filename: 'index.html',
      inject: 'body'
    }),
    new CleanWP(['dist'])
  ],
  // 模块配置
  module: {

    // 配置loader规则
    rules: [

      // css
      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader']
      },

      // less
      {
        test: /\.less$/,
        use: ['style-loader', 'css-loader', 'less-loader']
      },

      // html
      {
        test: /\.(html|tpl)$/,
        use: ['html-loader']
      },

      // 静态资源引用
      {
        test: /\.(png|jpeg|gif|jpg|svg|mp3|ttf)$/,
        use: [
          { loader: 'url-loader', options: { limit: 10240 } } // 小于10KB的打包
        ]
      },

      // js
      {
        test: /\.js$/,
        use: ['babel-loader'],
        exclude: path.resolve(__dirname, '../node_modules')
      },

      // vue
      {
        test: /\.vue$/,
        use: ['vue-loader']
      }

    ]
  }
};

5. 执行webpack-dev-server:

webpack-dev-server