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基于Vue的WebApp项目开发（三）

实现根组件通用的头部和底部样式

明白由webpack搭建起来的Vue项目的执行流程，那么就可以知道实现这个需要只要在根组件和入口文件上做“手脚”即可

<!--以后项目的根组件-->
<template>
  <div>
    <!--利用mint-ui中的header组件实现整个系统的头部-->
    <mt-header fixed title="欢迎来到锋商城"></mt-header>

    <!--路由占位符-->
    <router-view></router-view>

    <!--利用mui中的tabbar组件实现系统的底部-->
    <nav class="mui-bar mui-bar-tab">
      <a class="mui-tab-item mui-active" href="#tabbar">
        <span class="mui-icon mui-icon-home"></span>
        <span class="mui-tab-label">首页</span>
      </a>
      <a class="mui-tab-item" href="#tabbar-with-chat">
        <span class="mui-icon mui-icon-contact"></span>
        <span class="mui-tab-label">会员</span>
      </a>
      <a class="mui-tab-item" href="#tabbar-with-contact">
        <span class="mui-icon mui-icon-locked"><span class="mui-badge">0</span></span>
        <span class="mui-tab-label">购物车</span>
      </a>
      <a class="mui-tab-item" href="#tabbar-with-map">
        <span class="mui-icon mui-icon-search"></span>
        <span class="mui-tab-label">搜索</span>
      </a>
    </nav>
  </div>
</template>

<script>
  //负责导出.vue这个组件对象，它本质上是一个Vue对象
  // 所以Vue中该定义的元素都可以使用
  export default {
    data() {
      return {

      }
    },
    methods: {

    },
    created() {

    }
  }
</script>

<style scoped>
  /* 当前页面的CSS样式写到这里，其中scoped表示这个里面
      写的CSS代码知识在当前组件页面上有效，不会影响到其他组件页面
     * */
</style>

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//导入vue核心包
import Vue from 'vue';

//导入App.vue的vue对象
import App from './App.vue';

//导入vue-router
import vueRouter from 'vue-router';
//将vueRouter对象绑定到Vue对象上
Vue.use(vueRouter);

//导入路由规则对应的组件对象
import login from './components/account/login.vue';

//定义路由规则
var router1 = new vueRouter({
  routes: [{
      path: '/login',
      component: login
    }
  ]
});

//导入mint-ui的css文件
import 'mint-ui/lib/style.min.css';
//导入mint-ui组件对象
import mintui from 'mint-ui';
//在Vue中全局使用mintui
Vue.use(mintui);

//注册mui的css样式
import '../statics/mui/css/mui.css';

//导入一个当前系统的全局基本样式
import '../statics/css/site.css';

//利用Vue对象进行解析渲染
new Vue({
  el: '#app',
  //使用路由对象实例
  router: router1,
  render: c => c(App)
})

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实现根组件底部的按钮激活时样式设定

有一个很重要的点：就是在切换路由的时候我们能够激活该路由（router-link）某个class，下面请看详细开发步骤

步骤一：修改App.vue文件

<!--以后项目的根组件-->
<template>
  <div>
    <!--利用mint-ui中的header组件实现整个系统的头部-->
    <mt-header fixed title="欢迎来到锋商城"></mt-header>

    <!--路由占位符-->
    <router-view></router-view>

    <!--利用mui中的tabbar组件实现系统的底部-->
    <nav class="mui-bar mui-bar-tab">
      <router-link class="mui-tab-item" to="/home">
        <span class="mui-icon mui-icon-home"></span>
        <span class="mui-tab-label">首页</span>
      </router-link>
      <router-link class="mui-tab-item" to="/user">
        <span class="mui-icon mui-icon-contact"></span>
        <span class="mui-tab-label">会员</span>
      </router-link>
      <router-link class="mui-tab-item" to="/shopcar">
        <span class="mui-icon mui-icon-locked"><span class="mui-badge">0</span></span>
        <span class="mui-tab-label">购物车</span>
      </router-link>
      <router-link class="mui-tab-item" to="/search">
        <span class="mui-icon mui-icon-search"></span>
        <span class="mui-tab-label">搜索</span>
      </router-link>
    </nav>
  </div>
</template>

<script>
  //负责导出.vue这个组件对象，它本质上是一个Vue对象
  // 所以Vue中该定义的元素都可以使用
  export default {
    data() {
      return {

      }
    },
    methods: {

    },
    created() {

    }
  }
</script>

<style scoped>
  /* 当前页面的CSS样式写到这里，其中scoped表示这个里面
      写的CSS代码知识在当前组件页面上有效，不会影响到其他组件页面
     * */
</style>

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步骤二：创建car.vue和Home.vue组件用作测试（以后这两个组件还是非常重要的）

<template>
  <div id="tml">
    <h3>购物车</h3>
  </div>
</template>

<script>
  export default {

  }
</script>

<style>

</style>

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<template>
  <div id="tml">
    <h3>首页</h3>
  </div>
</template>

<script>
  export default {

  }
</script>

<style>

</style>

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步骤三：创建全局样式，为了组件头部和脚部内容不在根组件App.vue被遮挡（根组件的头部和脚部都为固定布局，脱离了文档流）

body {
  background: #fff;
}

#tml {
  margin-top: 40px;
  margin-bottom: 50px;
}

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步骤四：配置入口文件main.js（核心代码在这）

//导入vue核心包
import Vue from 'vue';

//导入App.vue的vue对象
import App from './App.vue';

//导入vue-router
import vueRouter from 'vue-router';
//将vueRouter对象绑定到Vue对象上
Vue.use(vueRouter);

//导入路由规则对应的组件对象
import home from './components/Home.vue';
import shopcar from './components/shopcar/car.vue';

//定义路由规则
var router1 = new vueRouter({
    //改变路由激活时的class名称
    linkActiveClass:'mui-active',  
  routes:[
      {path:'/home',component:home},
      {path:'/shopcar',component:shopcar}
  ]
});

//导入mint-ui的css文件
import 'mint-ui/lib/style.min.css';
//导入mint-ui组件对象
import mintui from 'mint-ui';
//在Vue中全局使用mintui
Vue.use(mintui);

//注册mui的css样式
import '../statics/mui/css/mui.css';

//导入一个当前系统的全局基本样式
import '../statics/css/site.css';

//利用Vue对象进行解析渲染
new Vue({
  el: '#app',
  //使用路由对象实例
  router: router1,
  render: c => c(App)
})

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使用vue-resource实现首页轮播图

vue-resource是Vue的一个插件，用来异步获取相关的资源。关于它的具体用法可以看这篇博文，如今比较推崇的是axios。不过该项目使用的还是vue-resource，下面请看开发步骤

步骤一：安装vue-resource

步骤二：创建一个json文件，存储相关的数据

homeslide.json

{
  "status": 0,
  "message": [
    {
      "url": "",
      "img": "../../statics/img/home/home01.jpg"
    }, {
      "url": "",
      "img": "../../statics/img/home/home02.jpg"
    }, {
      "url": "",
      "img": "../../statics/img/home/home03.jpg"
    }
  ]
}

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步骤三：配置入口文件main.js

//导入vue核心包
import Vue from 'vue';

//导入vue-router
import vueRouter from 'vue-router';
//将vueRouter对象绑定到Vue对象上
Vue.use(vueRouter);

//将vue-resource在vue中绑定，自动在vue对象实例上注入一个$http对象就可以使用ajax方法了
import vueResource from 'vue-resource';
Vue.use(vueResource);

//导入App.vue的vue对象
import App from './App.vue';

//导入路由规则对应的组件对象
import home from './components/Home.vue';
import shopcar from './components/shopcar/car.vue';

//定义路由规则
var router1 = new vueRouter({
  //改变路由激活时的class名称
  linkActiveClass: 'mui-active',
  routes: [{
      path: '/',
      component: home
    },
    {
      path: '/home',
      component: home
    },
    {
      path: '/shopcar',
      component: shopcar
    }
  ]
});

//导入mint-ui的css文件
import 'mint-ui/lib/style.min.css';
//导入mint-ui组件对象
import mintui from 'mint-ui';
//在Vue中全局使用mintui
Vue.use(mintui);

//注册mui的css样式
import '../statics/mui/css/mui.css';

//导入一个当前系统的全局基本样式
import '../statics/css/site.css';

//利用Vue对象进行解析渲染
new Vue({
  el: '#app',
  //使用路由对象实例
  router: router1,
  render: c => c(App)
})

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步骤四：修改Home.vue文件

<template>
  <div id="tml">
    <!--mint-ui轮播图-->
    <mt-swipe :auto="4000">
      <mt-swipe-item v-for="item in list">
        <img :src="item.img">
      </mt-swipe-item>
    </mt-swipe>
  </div>
</template>

<script>
  import { Toast } from 'mint-ui';
  export default {
    data() {
      return {
        list: []
      }
    },
    created() {
      //当页面中的data和methods对象都创建完毕以后，就会自动调用created
      this.getimgs();
    },
    methods: {
      getimgs() {
        //实现轮播组件中国的数据请求
        // 1.0确定url
        var url = '../../statics/json/homeslide.json'
        // 2.0调用$http.get()
        this.$http.get(url).then(function(response) {
          var data = response.body;
          //错误处理
          if(data.status != 0) {
            Toast(data.message);
            return;
          }
          //如果服务器返回数据正常，则赋值给list
          this.list = data.message;
        })
      }
    }
  }
</script>

<style>
  .mint-swipe {
    height: 300px;
  }
  
  .mint-swipe-item {
    width: 100%;
    height: 300px;
  }
  
  .mint-swipe-item img {
    width: 100%;
  }
</style>

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项目结构图：

实现首页导航区域九宫格图标

步骤一：将MUI的九宫格图标样式导入进Home.vue

<template>
  <div id="tml">
    <!--mint-ui轮播图-->
    <mt-swipe :auto="4000">
      <mt-swipe-item v-for="item in list">
        <img :src="item.img">
      </mt-swipe-item>
    </mt-swipe>

    <!--使用MUI的九宫格-->
    <div class="mui-content">
      <ul class="mui-table-view mui-grid-view mui-grid-9">
        <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3">
          <a href="#">
            <span class="mui-icon mui-icon-home"></span>
            <div class="mui-media-body">新闻资讯</div>
          </a>
        </li>
        <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3">
          <a href="#">
            <span class="mui-icon mui-icon-email"></span>
            <div class="mui-media-body">图片分享</div>
          </a>
        </li>
        <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3">
          <a href="#">
            <span class="mui-icon mui-icon-chatbubble"></span>
            <div class="mui-media-body">商品购买</div>
          </a>
        </li>
        <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3">
          <a href="#">
            <span class="mui-icon mui-icon-location"></span>
            <div class="mui-media-body">留言反馈</div>
          </a>
        </li>
        <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3">
          <a href="#">
            <span class="mui-icon mui-icon-search"></span>
            <div class="mui-media-body">视频专区</div>
          </a>
        </li>
        <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3">
          <a href="#">
            <span class="mui-icon mui-icon-phone"></span>
            <div class="mui-media-body">联系我们</div>
          </a>
        </li>
      </ul>
    </div>

  </div>
</template>

<script>
  import { Toast } from 'mint-ui';
  export default {
    data() {
      return {
        list: []
      }
    },
    created() {
      //当页面中的data和methods对象都创建完毕以后，就会自动调用created
      this.getimgs();
    },
    methods: {
      getimgs() {
        //实现轮播组件中国的数据请求
        // 1.0确定url
        var url = '../../statics/json/homeslide.json'
        // 2.0调用$http.get()
        this.$http.get(url).then(function (response) {
          var data = response.body;
          //错误处理
          if (data.status != 0) {
            Toast(data.message);
            return;
          }
          //如果服务器返回数据正常，则赋值给list
          this.list = data.message;
        })
      }
    }
  }
</script>

<style scoped>
  /*重写轮播图样式*/ 
  .mint-swipe {
    height: 300px;
  }
  .mint-swipe-item {
    width: 100%;
    height: 300px;
  }
  .mint-swipe-item img {
    width: 100%;
  }
  /*重写九宫格样式*/ 
  .mui-content,
  .mui-content ul li a {
    background: #fff;
  }
</style>
</style>

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步骤二：改变九宫格图标样式，首先得先准备好相关的图片资源，然后修改Home.vue中九宫格的背景图片

Home.vue

<template>
  <div id="tml">
    <!--mint-ui轮播图-->
    <mt-swipe :auto="4000">
      <mt-swipe-item v-for="item in list">
        <img :src="item.img">
      </mt-swipe-item>
    </mt-swipe>

    <!--使用MUI的九宫格-->
    <div class="mui-content">
      <ul class="mui-table-view mui-grid-view mui-grid-9">
        <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3">
          <a href="#">
            <span class="mui-icon mui-icon-home"></span>
            <div class="mui-media-body">新闻资讯</div>
          </a>
        </li>
        <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3">
          <a href="#">
            <span class="mui-icon mui-icon-email"></span>
            <div class="mui-media-body">图片分享</div>
          </a>
        </li>
        <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3">
          <a href="#">
            <span class="mui-icon mui-icon-chatbubble"></span>
            <div class="mui-media-body">商品购买</div>
          </a>
        </li>
        <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3">
          <a href="#">
            <span class="mui-icon mui-icon-location"></span>
            <div class="mui-media-body">留言反馈</div>
          </a>
        </li>
        <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3">
          <a href="#">
            <span class="mui-icon mui-icon-search"></span>
            <div class="mui-media-body">视频专区</div>
          </a>
        </li>
        <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3">
          <a href="#">
            <span class="mui-icon mui-icon-phone"></span>
            <div class="mui-media-body">联系我们</div>
          </a>
        </li>
      </ul>
    </div>

  </div>
</template>

<script>
  import { Toast } from 'mint-ui';
  export default {
    data() {
      return {
        list: []
      }
    },
    created() {
      //当页面中的data和methods对象都创建完毕以后，就会自动调用created
      this.getimgs();
    },
    methods: {
      getimgs() {
        //实现轮播组件中国的数据请求
        // 1.0确定url
        var url = '../../statics/json/homeslide.json'
        // 2.0调用$http.get()
        this.$http.get(url).then(function (response) {
          var data = response.body;
          //错误处理
          if (data.status != 0) {
            Toast(data.message);
            return;
          }
          //如果服务器返回数据正常，则赋值给list
          this.list = data.message;
        })
      }
    }
  }
</script>

<style scoped>
  /*重写轮播图样式*/
  
  .mint-swipe {
    height: 310px;
  }
  .mint-swipe-item {
    width: 100%;
    height: 300px;
  }
  .mint-swipe-item img {
    width: 100%;
    height: 80%;
  }
  /*重写九宫格样式*/
  
  .mui-content,
  .mui-content ul li a {
    background: #fff;
  }
  /*改变九宫格图标样式*/
  
  .mui-grid-9 .mui-icon-home:before,
  .mui-grid-9 .mui-icon-email:before,
  .mui-grid-9 .mui-icon-chatbubble:before,
  .mui-grid-9 .mui-icon-location:before,
  .mui-grid-9 .mui-icon-search:before,
  .mui-grid-9 .mui-icon-phone:before {
    content: '';
    display: inline-block;
    width: 50px;
    height: 50px;
    background-repeat: round;
  }
  .mui-grid-9 .mui-icon-home:before {
    background-image: url(../../statics/imgs/Hgrid/1.png);
  }
  .mui-grid-9 .mui-icon-email:before {
    background-image: url(../../statics/imgs/Hgrid/2.png);
  }
  .mui-grid-9 .mui-icon-chatbubble:before {
    background-image: url(../../statics/imgs/Hgrid/3.png);
  }
  .mui-grid-9 .mui-icon-location:before {
    background-image: url(../../statics/imgs/Hgrid/4.png);
  }
  .mui-grid-9 .mui-icon-search:before {
    background-image: url(../../statics/imgs/Hgrid/5.png);
  }
  .mui-grid-9 .mui-icon-phone:before {
    background-image: url(../../statics/imgs/Hgrid/6.png);
  }
</style>
</style>

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步骤三：添加路由（将Home.vue中a标签换成router-link，href换成to）

<template>
  <div id="tml">
    <!--mint-ui轮播图-->
    <mt-swipe :auto="4000">
      <mt-swipe-item v-for="item in list">
        <img :src="item.img">
      </mt-swipe-item>
    </mt-swipe>

    <!--使用MUI的九宫格-->
    <div class="mui-content">
      <ul class="mui-table-view mui-grid-view mui-grid-9">
        <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3">
          <router-link to="/news/newlist">
            <span class="mui-icon mui-icon-home"></span>
            <div class="mui-media-body">新闻资讯</div>
          </router-link>
        </li>
        <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3">
          <router-link to="/photo/photolist">
            <span class="mui-icon mui-icon-email"></span>
            <div class="mui-media-body">图片分享</div>
          </router-link>
        </li>
        <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3">
          <router-link to="/goods/goodslist">
            <span class="mui-icon mui-icon-chatbubble"></span>
            <div class="mui-media-body">商品购买</div>
          </router-link>
        </li>
        <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3">
          <router-link to="/feedback">
            <span class="mui-icon mui-icon-location"></span>
            <div class="mui-media-body">留言反馈</div>
          </router-link>
        </li>
        <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3">
          <router-link to="/vide">
            <span class="mui-icon mui-icon-search"></span>
            <div class="mui-media-body">视频专区</div>
          </router-link>
        </li>
        <li class="mui-table-view-cell mui-media mui-col-xs-4 mui-col-sm-3">
          <router-link to="/callme">
            <span class="mui-icon mui-icon-phone"></span>
            <div class="mui-media-body">联系我们</div>
          </router-link>
        </li>
      </ul>
    </div>

  </div>
</template>

<script>
  import { Toast } from 'mint-ui';
  export default {
    data() {
      return {
        list: []
      }
    },
    created() {
      //当页面中的data和methods对象都创建完毕以后，就会自动调用created
      this.getimgs();
    },
    methods: {
      getimgs() {
        //实现轮播组件中国的数据请求
        // 1.0确定url
        var url = '../../statics/json/homeslide.json'
        // 2.0调用$http.get()
        this.$http.get(url).then(function (response) {
          var data = response.body;
          //错误处理
          if (data.status != 0) {
            Toast(data.message);
            return;
          }
          //如果服务器返回数据正常，则赋值给list
          this.list = data.message;
        })
      }
    }
  }
</script>

<style scoped>
  /*重写轮播图样式*/
  
  .mint-swipe {
    height: 310px;
  }
  .mint-swipe-item {
    width: 100%;
    height: 300px;
  }
  .mint-swipe-item img {
    width: 100%;
    height: 80%;
  }
  /*重写九宫格样式*/
  
  .mui-content,
  .mui-content ul li a {
    background: #fff;
  }
  /*改变九宫格图标样式*/
  
  .mui-grid-9 .mui-icon-home:before,
  .mui-grid-9 .mui-icon-email:before,
  .mui-grid-9 .mui-icon-chatbubble:before,
  .mui-grid-9 .mui-icon-location:before,
  .mui-grid-9 .mui-icon-search:before,
  .mui-grid-9 .mui-icon-phone:before {
    content: '';
    display: inline-block;
    width: 50px;
    height: 50px;
    background-repeat: round;
  }
  .mui-grid-9 .mui-icon-home:before {
    background-image: url(../../statics/imgs/Hgrid/1.png);
  }
  .mui-grid-9 .mui-icon-email:before {
    background-image: url(../../statics/imgs/Hgrid/2.png);
  }
  .mui-grid-9 .mui-icon-chatbubble:before {
    background-image: url(../../statics/imgs/Hgrid/3.png);
  }
  .mui-grid-9 .mui-icon-location:before {
    background-image: url(../../statics/imgs/Hgrid/4.png);
  }
  .mui-grid-9 .mui-icon-search:before {
    background-image: url(../../statics/imgs/Hgrid/5.png);
  }
  .mui-grid-9 .mui-icon-phone:before {
    background-image: url(../../statics/imgs/Hgrid/6.png);
  }
</style>
</style>

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原文地址：https://www.cnblogs.com/fengxiongZz/p/8092796.html