ElementUI案例演示:导航、布局、加载动画

来源：互联网发布：网络部招新面试问题编辑：程序博客网时间：2024/05/17 03:14

知识点

1.vue-router之嵌套路由
http://router.vuejs.org/zh-cn/essentials/nested-routes.html
2.element-ui
导航组件、布局组件、加载动画
http://element.eleme.io/#/zh-CN/component/menu
http://element.eleme.io/#/zh-CN/component/layout
http://element.eleme.io/#/zh-CN/component/loading

这里写图片描述

el-nav.vue:

<template>    <el-menu theme="dark" default-active="1" class="el-menu-demo" mode="horizontal" :router="true">        <el-menu-item index="/elindex/hot">处理中心</el-menu-item>        <el-submenu index="2">            <template slot="title">我的工作台</template>            <el-menu-item index="2-1">选项1</el-menu-item>            <el-menu-item index="2-2">选项2</el-menu-item>            <el-menu-item index="2-3">选项3</el-menu-item>        </el-submenu>        <el-menu-item index="3">订单管理</el-menu-item>    </el-menu></template>

el-index:

<template>    <div>        <el-row>            <el-col :span="24"><div class="grid-content bg-purple-dark"></div></el-col>            <!--使用组件-->            <elnav></elnav>        </el-row>        <!--嵌套路由-->        <router-view></router-view>    </div></template><script>    // 引入elmenetui的导航组件    import elnav from "./el-nav.vue";    export default {        //加载组件        components:{elnav}    }</script>

el-hot.vue:

<template>    <div>        <el-row v-for="hotNews in this.$store.state.ele.hot" justify="start" :gutter="2" align="middle">            <el-col :span="6">                <div class="grid-content bg-purple-dark hotimg">                    <img :src="hotNews.image"/>                </div>            </el-col>            <el-col :span="18">                <div class="grid-content bg-purple-dark hotcontent">                    <h2>{{hotNews.title}}</h2>                    <p>{{hotNews.desc}}</p>                </div>            </el-col>        </el-row>    </div></template><script>    export default{        mounted(){            this.$store.dispatch("getHot");        },        data(){            return {msg:"hello vue"}        }    }</script>

eleModule.js:

import Vue from "vue";export default{    state:{        hot:[] //用来装请求回来的数据    },    mutations:{        //写个方法给hot数组设置数据        setHot(state, data){            state.hot = data;        }    },    actions:{        //写个方法,做http请求        getHot(content){            //loading效果            let loading = Vue.prototype.$loading({text:"玩命加载中..."});            Vue.http.get("http://localhost/eleui.php",{},{emulateJSON:true})                .then(                    function (res) { //请求成功的回调函数                        //先结束loading效果                        loading.close();                        //调用设置hot数据的方法,把请求成功的数据给hot数组                        content.commit("setHot",res.body);                    },function(){}                );        }    }}

入口文件jssrc/index.js:

import Vue from "vue";import pagenav from "./../components/page-nav.vue";import newsdetail from "./../components/news-detail.vue";// 引入import validate from "./../components/validate";// 使用Vue.use(validate);import VueRouter from 'vue-router';Vue.use(VueRouter); // 全局使用插件import VueResource from 'vue-resource';Vue.use(VueResource);import UserModule from "./../store/modules/UserModule";import NewsModule from "./../store/modules/NewsModule";import EleModule from "./../store/modules/eleModule";import Vuex from 'vuex';Vue.use(Vuex);import ElementUI from 'element-ui';import 'element-ui/lib/theme-default/index.css';Vue.use(ElementUI);import eltable from "./../components/el-table.vue";import elindex from "./../components/elmentui/el-index.vue";import elhot from "./../components/elmentui/el-hot.vue";const  vuex_store = new Vuex.Store({    modules:{        users:UserModule,        news:NewsModule,        ele:EleModule    }})const userlogin = resolve => {    // 成功之后的回调    resolve(require("./../components/user-login.vue")); // 这就是异步加载的方式}const newslist = resolve => {    // 成功之后的回调    resolve(require("./../components/news-list.vue")); // 这就是异步加载的方式}const routerConfig = new VueRouter({    routes: [        { path: '/', component: userlogin},        { path: '/news', component: newslist, name:"newslist"},        { path: '/news/:newsid', component: newsdetail, name:"newsdetail"},        { path: '/login', component: userlogin,name:"userlogin" },        { path: '/eltable', component: eltable,name:"eltable" },        { path: '/elindex', component: elindex,name:"elindex", children:[            {path:"hot",component:elhot,name:"elhot"}        ]}    ]})// 全局组件,不加入路由管理Vue.component("page-nav",pagenav);let myvue = new Vue({    el:".container",    store:vuex_store, //注入到vue    router:routerConfig,});

代码分析

1、ele-nav导航组件是嵌套在 ele-index组件里的，ele-index里加载导航组件

import elnav from "./el-nav.vue";components:{elnav}

<!--使用组件--><elnav></elnav>

2、创建了eleModule模块之后，需要在入库文件里加载

//引入import EleModule from "./../store/modules/eleModule";// 使用const  vuex_store = new Vuex.Store({    modules:{        users:UserModule,        news:NewsModule,        ele:EleModule    }})

3、给ele配置路由

// 引入import elindex from "./../components/elmentui/el-index.vue";import elhot from "./../components/elmentui/el-hot.vue";// 配置const routerConfig = new VueRouter({    routes: [        { path: '/', component: userlogin},        { path: '/news', component: newslist, name:"newslist"},        { path: '/news/:newsid', component: newsdetail, name:"newsdetail"},        { path: '/login', component: userlogin,name:"userlogin" },        { path: '/eltable', component: eltable,name:"eltable" },        { path: '/elindex', component: elindex,name:"elindex", children:[            {path:"hot",component:elhot,name:"elhot"}        ]}    ]})

这里用到了嵌套路由：

{ path: '/elindex', component: elindex,name:"elindex", children:[            {path:"hot",component:elhot,name:"elhot"}        ]}

嵌套路由在组件里也需要配合：

<!--嵌套路由-->        <router-view></router-view>

/elindex/hot

效果演示

这里写图片描述
php代码:

<?php    // 指定允许其他域名访问  header('Access-Control-Allow-Origin:*');  // 响应类型  header('Access-Control-Allow-Methods:GET');  header('Access-Control-Allow-Headers:x-requested-with,content-type');     //测试数据 header("content-type:application/json"); //这句话TM很重要哦，否则到前端获取时 只是普通字符串，不会自动识别$data=[          ["title"=>"SpaceX发射重启计划推迟 明年1月发射一箭十星","desc"=>"今年9月1日，搭载有以色列Amos-6通信卫星的猎鹰9号火箭，在东海岸佛罗里达州卡纳维拉尔角40号发射台进行静态点火测试前准备工作时突然起火爆炸，火箭连同价值2亿美元的Amos-6通信卫星一并被炸毁，40号发射台也需要进行大修，随后SpaceX公司被暂停了所有发射。","image"=>"http://inews.gtimg.com/newsapp_ls/0/884972898_300240/0"],          ["title"=>"iPhone炸完iPad炸 苹果要重蹈三星覆辙？","desc"=>"宁波林先生怎么也没想到，这么悲催的事情居然发生在自己头上：他用了一年多的iPad半夜在充电时爆炸了，不仅写字台被炸开了一个洞，iPad零件更是炸得整个房间到处都是。” ","image"=>"http://inews.gtimg.com/newsapp_ls/0/884809358_300240/0"],          ["title"=>"遭唱衰的苹果接连公布利好：AppStore上月营收创纪录","desc"=>"腾讯科技讯 目前的苹果，已经进入了库克接手之后最困难的阶段，几乎全部电子产品销售出现同比下跌，财年收入出现了十多年来首次下滑。另外今年推出的新手机也遭遇了类似去年的低迷命运。” ","image"=>"http://inews.gtimg.com/newsapp_ls/0/885233382_300240/0"]      ];        sleep(2); //模拟网速很卡     echo json_encode($data,JSON_UNESCAPED_UNICODE);//精选

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