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何为Nuxt.js
Nuxt.js是一个vue的服务端渲染的框架，集成了express框架，sass/less框架等等,ui框架如Bootstrap，Vuetify，Bulma，Tailwind，Element UI，Ant Design Vue，Buefy，方便的集成拓展其他框架，如EsLint等等，自动化打包，代码改动自动更新（服务器，前端代码），让开发变得简单。
开始安装
文档地址在这： nuxt.js
首先你必须安装了node环境， npm（或者 yarn）；
npx create-nuxt-app <项目名>
安装到中间的时候， 会让你选择开发的框架
ui框架我选择了element-ui， 服务器框架选择了koa，还有可以选择预编译样式框架sass / less;
选择完成之后就会进行安装，需要等待一段时间。（如果没有v皮N的话，建议选择淘宝源，进行npm安装module的时候会快很多）
$ npm config set registry https://registry.npm.taobao.org
– 配置后可通过下面方式来验证是否成功
$ npm config get registry
-- 或 npm info express
然后我们看到nuxt.config.js, 这个是nuxt项目的配置文件，
const pkg = require('./package')module.exports = {mode: 'universal',/*** Headers of the page*/head: {title: pkg.name,meta: [{ charset: 'utf-8' },{ name: 'viewport', content: 'width=device-width, initial-scale=1' },{ hid: 'description', name: 'description', content: pkg.description }],link: [{ rel: 'icon', type: 'image/x-icon', href: '/favicon.ico' }]},/*** Customize the progress-bar color*/loading: { color: '#fff' },/*** Global CSS 全局的css，公共的css引用也在这*/css: ['element-ui/lib/theme-chalk/index.css'],/*** Plugins to load before mounting the App*/plugins: ['@/plugins/element-ui'],/*** Nuxt.js modules*/modules: [// Doc: https://github.com/nuxt-community/axios-module#usage'@nuxtjs/axios'],/*** Axios module configuration*/axios: {// See https://github.com/nuxt-community/axios-module#options},/*** Build configuration*/build: {/*** webpack 的配置项在这里拓展**比如启用eslint*/extend(config, ctx) {// Run ESLint on save// if (ctx.isDev && ctx.isClient) {// config.module.rules.push({// enforce: 'pre',// test: /\.(js|vue)$/,// loader: 'eslint-loader',// exclude: /(node_modules)/// })// }}}
}然后我们看pages/index.vue，我们记住vue里面template只有一个根元素，如果有多个就会报错，
<template><div><head1/><div class="m" v-loading.lock='loading'><div class="main"><div class="content"><div class="pannel"><div class="b_head"><a class="currentTab tab" href="/?tab=share">分享</a><a class="tab" href="/?tab=ask">问答</a><a class="tab" href="/?tab=job">招聘</a><a class="tab" href="/?tab=good">精华</a></div></div><div class="secDiv" v-loading.lock="loading"><div v-for="item of articleListsData" :key='item.length' class="cell"><nuxt-link :to="item.author.avatar_url" :title='item.author.loginname'><img :src="item.author.avatar_url" :title='item.author.loginname' class="headImg"></nuxt-link><span class="count_reply pull_left"><span class="count_replyNum">{{item.reply_count}}</span><span>/</span><span class="visit_count">{{item.visit_count}}</span></span><div class="topic_title_wrapper textD"><span class="put_top" v-if="item.top">置顶</span><span class="topiclist-tab" v-else-if="item.tab">{{item.tab == 'ask' ? '问答': item.tab == 'share'? '分享': '' }}</span><nuxt-link :to='"/topic/" + item.id' class="topic_title">{{item.title}}</nuxt-link></div><span class="pull_right"><span class="last_active_time">{{dealTime(item.create_at)}}</span></span></div></div></div><div class="aside">{{ip}}</div></div></div><div class="next"><input type="button" value="下一页" @click="getData()"></div></div></template><script>import Logo from '~/components/Logo.vue';import head1 from '~/components/header.vue';// import body1 from '~/components/body.vue';import axios from 'axios'import { mapState } from 'vuex'export default {components: {Logo,head1,},transition: 'page',data() {return {loading: true,ip: ''}},computed: mapState(['articleLists']),asyncData(context){return axios.get('https://cnodejs.org/api/v1/topics?pages=1&limit=30&mdrender=false').then(res => ({articleListsData: res.data.data,loading: false})).catch(res =>{throw new Error('Maisec.vue: ', res)})},methods: {async fetchSomething() {const ip = await this.$axios.$get('http://icanhazip.com')this.ip = ip},getData (){this.fetchSomething()this.$store.dispatch('getArticleLists')},dealTime(time){let now = (new Date()).getTime();time = (new Date(time)).getTime();let res = (now-time)/1000,str = '';if (res/(60*60*24) > 1){str = Math.floor(res/(60*60*24)) + '天前'}else if (res/(60*60) > 1){str = Math.floor(res/(60*60)) + '小时前'}else{str = Math.floor(res/(60)) + '分钟前'}return str}},watch:{articleLists(val){this.articleListsData = this.articleLists}}}
</script><style scoped type="text/css">body{background: #e5e5e5;}a{text-decoration: none; }.secDiv .cell:hover{background: #e5e5e5;}.secDiv .cell:nth-child(1){border-top: none;}.secDiv .inner .unstyled li div, .topic_title_wrapper, .user_name, a.dark, a.topic_title{text-overflow: ellipsis;}.count_reply{width: 70px;display: inline-block;text-align: center;}.cell{padding-right: 10px;border-top: 1px solid #ccc;background: #fff;position: relative;padding: 10px 0 10px 10px;font-size: 14px;}.last_active_time{display: inline-block;min-width: 50px;color: #999;white-space: nowrap;}.pull_right{float: right;}.topiclist-tab{background: #e5e5e5;color: #999;padding: 2px 4px;border-radius: 3px;font-size: 12px;}.put_top{padding: 2px 4px;background: #80bd01;border-radius: 3px;color: #fff;font-size: 12px;}.m{width: 100%;display:flex;justify-content: center;}.main{width: 90%; min-height: 400px; max-width: 1400px; height: 957px; margin: 15px auto;}.content{padding: 0;margin-right: 305px;}.b_head{width: 100%; padding: 10px;background: #f6f6f6; border-radius: 3px 3px 0 0;}.b_head a{color: #80bd01;}.tab{margin: 0 10px; font-size: 14px;}.b_head .currentTab{background: #80bd01; color: #fff; padding: 3px 4px; border-radius: 3px; }.headImg{width: 30px;height: 30px;border-radius: 3px;}.aside{ width:290px; font-size: 14px; float: right;}.container {min-height: 100vh;}.title {font-family: 'Quicksand', 'Source Sans Pro', -apple-system, BlinkMacSystemFont,'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;display: block;font-weight: 300;font-size: 100px;color: #35495e;letter-spacing: 1px;
}.subtitle {font-weight: 300;font-size: 42px;color: #526488;word-spacing: 5px;padding-bottom: 15px;
}.links {padding-top: 15px;
}.topic_title_wrapper{white-space: nowrap;
}.textD{display: inline-block;
}
</style>我们把头部导航栏写成组件， 在components文件夹新建一个文件header.vue
<template><div><div class="navbar"><div class="navInner"><div class="navContainer"><div class="logo"><a href="/"><img src="../static/img/cnodejs_light.svg" class="navLogo"> </a></div><div class="about"><a href="/about">关于</a></div></div></div></div></div>
</template><style type="text/css" scoped="scoped">.navbar{height: 50px; line-height: 50px; font-size: 13px; background: #444; width: 100%; color: #80bd01;
} .navInner{width: 90%; margin: auto;}.navInner a{color: #fff;text-decoration: none;}.navContainer{width: 100%;min-width: 960px;margin: 0 auto;display: flex;justify-content: space-around;
}.logo{height: 100%;
}@media screen and (max-width: 979px ){.navInner{width: 100%}
}
.navLogo{width: 128px; height: 28px;
}
</style>
在store文件夹下新建actions.js:
主要是处理获取数据的函数
import axios from 'axios'export default{getArticleLists(context) {context.commit('addArticleNumber')const number = context.getters.getArticleNumberaxios.get(`https://cnodejs.org/api/v1/topics?pages=1&limit=${number}&mdrender=false`).then(res =>{context.commit('addArticleLists', res.data.data)}).catch(res =>{throw new Error('err: ', res)})}
}
store下新建getters.js:
主要是暴露函数
export default {getArticleLists: state => state.articleLists,getArticleNumber: state => state.articleNumber,getArticle: state => state.article,getArticleAuthor: state => state.articleAuthor,getUserInfo: state => state.userInfo
}
在store下新建index.js:
主要是初始化Vuex：
import Vuex from 'vuex'
import mutations from './mutations'
import actions from './actions'
import getters from './getters'
import state from './state'const createStore = ()=> new Vuex.Store({state,getters,mutations,actions
})export default createStore
在store下新建mutations.js:
这里主要是为了改变vuex里面的数值
export default{addArticleLists(state, articleLists){state.articleLists = articleLists},addArticleNumber(state){state.articleNumber += 10}
}
接着， 使用命令行：
npm run dev
就可以在浏览器打开http://127.0.0.1:3000查看效果了
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