標籤:cell rip UI orm web space page 參與 oca
在項目中嘗試了mockjs,mock資料,實現前後端分離開發。
關於mockjs,官網描述的是
1.前後端分離
2.不需要修改既有代碼,就可以攔截 Ajax 請求,返回類比的響應資料。
3.資料類型豐富
4.通過隨機資料,類比各種情境。
等等優點。
總結起來就是在後端介面沒有開發完成之前,前端可以用已有的介面文檔,在真實的請求上攔截ajax,並根據mockjs的mock資料的規則,類比真實介面返回的資料,並將隨機的類比資料返回參與相應的資料互動處理,這樣真正實現了前背景分離開發。
與以往的自己類比的假資料不同,mockjs可以帶給我們的是:在後台介面未開發完成之前類比資料,並返回,完成前台的互動;在後台資料完成之後,你所做的只是去掉mockjs:停止攔截真實的ajax,僅此而已。
下面一步步的來實現vue-cli建立項目並添加一條新聞類的資料類比介面:
1.安裝vue-cli全域腳手架
npm install --global vue-cli
2.建立vue項目
vue init webpack mockjs
cd mockjs
npm install axios --save
3.安裝mockjs
npm install mockjs --save-dev
4.項目目錄
axios/api 用來封裝axios
Hello.vue 頁面首頁
NeswCell.vue 新聞群組件
router/index.js 路由
main.js 入口js
mock.js mockjs檔案
在來看下完成後的效果
5.在入口js(main.js)裡引入mockjs
// The Vue build version to load with the `import` command// (runtime-only or standalone) has been set in webpack.base.conf with an alias.import Vue from ‘vue‘import App from ‘./App‘import router from ‘./router‘Vue.config.productionTip = false// 引入mockjsrequire(‘./mock.js‘)/* eslint-disable no-new */new Vue({el: ‘#app‘,router,template: ‘<App/>‘,components: {App}})Vue.filter(‘getYMD‘, function(input) {return input.split(‘ ‘)[0];})
這裡我添加了額一個常用的時間整理過濾器 getYMD
6. 添加一個mock規則(mock.js)
// 引入mockjsconst Mock = require(‘mockjs‘);// 擷取 mock.Random 對象const Random = Mock.Random;// mock一組資料const produceNewsData = function() {let articles = [];for (let i = 0; i < 100; i++) {let newArticleObject = {title: Random.csentence(5, 30), // Random.csentence( min, max )thumbnail_pic_s: Random.dataImage(‘300x250‘, ‘mock的圖片‘), // Random.dataImage( size, text ) 產生一段隨機的 Base64 圖片編碼author_name: Random.cname(), // Random.cname() 隨機產生一個常見的中文姓名date: Random.date() + ‘ ‘ + Random.time() // Random.date()指示產生的日期文字的格式,預設為yyyy-MM-dd;Random.time() 返回一個隨機的時間字串}articles.push(newArticleObject)}return {articles: articles}}// Mock.mock( url, post/get , 返回的資料);Mock.mock(‘/news/index‘, ‘post‘, produceNewsData);
7.在Hello.vue 中請求文檔介面,並接收mock資料
<template> <div class="index"> <div v-for="(item, key) in newsListShow"> <news-cell :newsDate="item" :key="key" ></news-cell> </div> </div></template><script>import api from ‘./../axios/api.js‘import NewsCell from ‘./NewsCell.vue‘export default { name: ‘index‘, data () { return { newsListShow: [], } }, components: { NewsCell }, created() { this.setNewsApi(); }, methods:{ setNewsApi: function() { api.JH_news(‘/news/index‘, ‘type=top&key=123456‘) .then(res => { console.log(res); this.newsListShow = res.articles; }); }, }}</script><!-- Add "scoped" attribute to limit CSS to this component only --><style scoped>.topNav{ width: 100%; background: #ED4040; position: fixed; top:0rem; left: 0; z-index: 10;}.simpleNav{ width: 100%; line-height: 1rem; overflow: hidden; overflow-x: auto; text-align: center; font-size: 0; font-family: ‘微軟雅黑‘; white-space: nowrap;}.simpleNav::-webkit-scrollbar{height:0px}.simpleNavBar{ display: inline-block; width: 1.2rem; color:#fff; font-size:0.3rem;}.navActive{ color: #000; border-bottom: 0.05rem solid #000;}.placeholder{ width:100%; height: 1rem;}</style>
注意:api.JH_news是我封裝的axios函數
axios/api.js如下
import axios from ‘axios‘import vue from ‘vue‘axios.defaults.headers.post[‘Content-Type‘] = ‘application/x-www-form-urlencoded‘// 請求攔截器axios.interceptors.request.use(function(config) { return config; }, function(error) { return Promise.reject(error); }) // 響應攔截器axios.interceptors.response.use(function(response) { return response;}, function(error) { return Promise.reject(error);})// 封裝axios的post請求export function fetch(url, params) { return new Promise((resolve, reject) => { axios.post(url, params) .then(response => { resolve(response.data); }) .catch((error) => { reject(error); }) })}export default { JH_news(url, params) { return fetch(url, params); }}
8.在NewsCell.vue展示資料
<template> <section class="financial-list"> <section class="collect" @click="jumpPage"> <aside> <h2>{{newsDate.title}}</h2> <section class="Cleft clearfix"> <img class="fl" src="./../assets/icon/eyes.png" style="width:0.24rem;height:0.2rem;"> <span class="fl">{{newsDate.author_name}}</span> </section> <section class="Cright"> <img src="./../assets/icon/clock.png" style="width:0.2rem;height:0.2rem;"> <span>{{newsDate.date | getYMD}}</span> </section> <div style="clear: both"></div> </aside> <aside> <img :src="newsDate.thumbnail_pic_s" style="border-radius: 0.2rem;"> </aside> <div style="clear: both"></div> </section> </section></template><script>export default { name: ‘NewsCell‘, props: { newsDate: Object }, data () { return { } }, computed: { }, methods: { jumpPage: function () { window.location.href = this.newsDate.url } }}</script><style scoped>.financial-list { width: 100%; height: 100%; background-color: white; padding: 0.28rem 0; border-bottom: 1px solid #ccc;}.financial-list .collect { width: 92%; margin: 0 auto;}.financial-list .collect aside:nth-of-type(1) { width: 63%; float: left;}.financial-list .collect aside:nth-of-type(2) { width: 32%; height: 2rem; float: left; margin-left: 0.3rem;}.financial-list .collect h2 { width: 100%; height: 0.96rem; font-size: 0.32rem; color: #333333; line-height: 0.48rem; text-overflow: ellipsis; -o-text-overflow: ellipsis; overflow: hidden;}.financial-list .collect aside:nth-of-type(2) img { width: 100%; height: 100%;}.financial-list .collect aside .Cleft { width: 45%; float: left; margin-top: 0.66rem;}.financial-list .collect aside .Cleft span{ display: block; width: 1.4rem; margin-left: 0.05rem; white-space: nowrap; text-overflow: ellipsis; -o-text-overflow: ellipsis; overflow: hidden;}.financial-list .collect aside .Cright { width: 55%; float: right; margin-top: 0.66rem;}.financial-list .collect aside .Cright span{ display: inline-block; margin: 0.04rem 0 0 0.05rem;}.financial-list .collect aside span { font-size: 0.2rem; color: #999999;}.financial-list .collect aside .Cleft img,.financial-list .collect aside .Cright img { width: 0.18rem; height: 0.24rem; margin-top: 0.09rem;}</style>
完成
9.所有代碼可以查看我的github: https://github.com/Jasonwang911/vue_mockjs
vue+mockjs 類比資料,實現前後端分離開發