vuejs2 + wp-rest-api开发web app

时间 2019-11-10

标签 vuejs2 vuejs rest api 开发 web app 栏目 HTML 繁體版

原文原文链接

以前我写了一篇《利用Cordova，jqurey与wp-rest-api制做一个属于本身博客的移动APP》，使用的是jQuery mobile的方式进行web app的开发，今天我就说一下使用vuejs 与 wp-reset-api开发一个web app的方法。
先看看作好之后的效果吧：
css

1、首先安装nodejs

安装方法请自行去官方网站查看html

2、安装vue-cli

一、直接打开nodejs的命令窗口输入如下命令：
npm install -g vue-cli //全局安装vue-cli
vue init webpack egtch //生成项目名为egtch的模板，这里的项目名egtch随你本身写
输入这个目录后会出现以下所示
vue

? Project name 本身填写一个项目名称 ? Project description (A Vue.js project)
这里是项目描述，随便填写 ? Author 这个是开发者信息，会自动获取，也能够本身设置html5

Runtime + Compiler: recommended for most users Runtime-only: about 6KB lighter min+gzip, but templates (or any Vue-specific HTML) are
ONLY allowed in .vue files - render functions are required elsewherenode

看到这个，直接回车跳过 ? Install vue-router? (Y/n)
//这里选择y，安装vue-router（路由）功能，以便咱们进行相应的开发。 ? Use ESLint to lint your
code? (Y/n) //若是你想要使用eslint提示，那么你选择y，不知道这个是什么东西的同窗，直接选择n吧。 ? Setup
unit tests with Karma + Mocha? //这两个是js测试框架，选择n ? Setup e2e tests with
Nightwatch? (Y/n) //这个也直接选择nlinux

二、以上步骤都完成后，即将看到以下的提醒哦webpack

vue-cli · Generated "egtch". To get started: cd egtch npm install npm
run dev 三、而后咱们在执行如下命令 cd egtch //进入项目所在目录 npm install //初始化安装依赖
这样咱们在回来看咱们的目录结构，将在egtch目录下生成以下目录结构 vue-cli项目目录git

npm run dev //在浏览器中运行当前的vue项目
这样就能够看到vue-cli默认的一个页面展示在咱们眼前了，以下图：
vue-cli演示页面
github

四、在咱们开发中会用到vue-resource与stylus
咱们能够经过命令 npm install vue-resource -save来进行下载vue-resource安装
npm install stylus -save
固然也能够修改egtch根目录下的packge.json文件中的代码后，在执行npm install，修改如图
packge.json修改
web

而且修改

"devDependencies": {
…………
"css-loader": "^0.26.1", //在这个下面添加stylus
//必需要添加2个关于stylus的依赖库
"stylus-loader": "^2.5.0",
"stylus": "0.52.4",
…………
}

3、wp-rest-api v2使用

（官方地址http://v2.wp-api.org/）
好比，若是想要获取wordpress中最新的文章，你能够直接在浏览器中输入： http://www.egtch.com/wp-json/...，你们能够经过本站的相关api去访问若是想获取指定的文章（按文章ID），能够输入： http://www.egtch.com/wp-json/... 获取第一页的文章 http://www.egtch.com/wp-json/... 第二页page=2以此类推更多关于wp-rest-api用法，请参考官方文档api

4、进入vue开发

一、打开根目录下的index.html，修改title，而且在head中增长手机端设备支持代码
而且导入reset.css(自行到网上寻找适合本身的reset.css)，而且将其放在static目录中
二、在main.js中引入vue-resource

import VueResource from 'vue-resource'
Vue.use(VueResource)

三、在src/assets下新建一个css目录，并在目录下创建一个public.styl文件，其代码以下
注意：使用stylus中，缩进必须正确，不然就会出现严重的问题

font-rem($num)
  font-size ($num/16)rem
bg-change($color)
  background $color
body
  background #CCC
  font-family "Microsoft Yahei","Helvetica Neue",Helvetica,Arial,sans-serif
  font-weight lighter
  height 100%
h1,h2,h3,h4,h5,h6
  font-weight 400
  color black
  border-left 2px #CCC solid
  margin 10px 0
  padding 0 0 0 8px
  line-height 1
  font-rem(18)
//手机端真正实现1px的线
.line
  width 90%
  margin 0 auto
  flex 1
  position relative
  top -6px
  border-bottom 1px solid #F2F2F2
.line-k
  width 100%
  margin 10px auto 0 auto
  flex 1
  position relative
  top -6px
  border-bottom 1px solid #F2F2F2
.codecolorer-container
  width 90%
  background #f2f2f2
  margin 0 auto
  color dimgrey
  overflow auto
  border 1px #CCC solid
  padding 3%
  font-rem(14)
.wp-caption
  text-align center

四、修改src目录下的App.vue以下

<template>
  <div id="app">
    <top></top>
    <transition :name="$router.app.pageTransition">
        <router-view></router-view>
    </transition>
    <bottom></bottom>
  </div>
</template>

<script>
import Top from './components/Top.vue'
import Bottom from './components/Bottom.vue'
export default {
  components:{
    'top':Top,
    'bottom':Bottom
  }
}
</script>
<style lang="stylus" rel="stylesheet/stylus">
@import "./assets/css/public.styl"
@import "./assets/css/font-awesome.min.css"
#app
  width 100%
  height 100%
  display table
  overflow auto
  /*right start*/
  .slide-right-enter-active
    transition all .4s ease
  .slide-right-enter
    opacity 0.9;
    transform translate3d(100%, 0, 0)
  .slide-right-leave
    transform translate3d(0, 0, 0)
  .slide-right-leave-active
    transition all .4s ease
    opacity .5
    transform translate3d(-20%, 0, 0)
  /*right end*/
  /*left start*/
  .slide-left-enter-active
    transition all .4s ease;
    transform translate3d(0%, 0, 0);
    z-index 1998
  .slide-left-enter
    opacity .5
    transform translate3d(-20%, 0, 0)
    z-index 1998
  .slide-left-leave
    transform translate3d(0, 0, 0)
  .slide-left-leave-active
    transition all .4s ease
    opacity 0.9
    transform translate3d(100%, 0, 0)
  /*left end*/
  .slide-fade-enter-active
    transition all .4s ease
  .slide-fade-leave-active
    transition all .4s ease
  .slide-fade-enter,
  .slide-fade-leave-active
    opacity 0
  .slide-fade-enter
    padding-top 80%
  .slide-fade-leave-active
    padding-top -100%
</style>

五、咱们在src目录下的commponents目录下创建一个Posts.vue来获取，代码以下：

<template>
  <div class="po">
    <div class="posts">
        <div class="box" v-for="(item, index) in posts">
          <div class="post">
            <router-link :to="{path:'/article',query: {id:posts[index].id}}">{{posts[index].title.rendered}}</router-link>
            <div class="line-k"></div>
            <div class="posts-img" v-html="getFirstImg(posts[index].content.rendered)"></div>
            <div class="description" v-html="replaceDS(posts[index].excerpt.rendered)"></div>
          </div>
        </div>
          <a id="pre" @click="pre"><i class="fa fa-angle-left" aria-hidden="true"></i>PREVIOUS</a>
          <a id="next" @click="next">NEXT<i class="fa fa-angle-right" aria-hidden="true"></i></a>
    </div>
  </div>
</template>
<style lang="stylus" rel="stylesheet/stylus">
  @import "../assets/css/public.styl"
  @import "../assets/css/font-awesome.min.css"
.po
  background #ffffff
  width 100%
  .posts
    width 100%
    height 100%
    overflow auto
    margin 40px auto 68px auto
    & a
      color darkcyan
      padding 5px
      border-radius 2px
      &#pre
        float left
        font-rem(18)
        padding 5px 10px 10px 10px
        line-height 32px
        & i
          font-rem(28)
          margin-right 10px
          float left
      &#next
        float right
        font-rem(18)
        padding 5px 10px 10px 10px
        line-height 32px
        & i
          font-rem(28)
          margin-left 10px
          float right
    .box
      width 100%
      margin 10px auto
      background #ffffff
      padding 10px 0
      line-height 1.5
      border-bottom 6px solid #F2F2F2
      .post
        width 96%
        margin 0 auto
        & a
          color darkcyan
          background none
          font-rem(18)
          margin 0 auto 5px auto
          padding 5px 0
        .posts-img
          width 90%
          margin 0 auto
          padding 5px 0 0 0
          & > img
            max-width 100%
            border 2px solid #CCC
            border-radius 5px
        .description
          font-rem(16)
          padding-top 5px
          color dimgrey
</style>
<script>
    export default{
      name:'iposts',
      data() {
        return{
          apiUrl:'http://www.egtch.com/wp-json/wp/v2/posts',
          posts:{},
          page: 1,
          show: false
        }
      },
      created(){
        this.getPosts(this.page)
      },
      watch: {
        // 若是路由有变化，会再次执行该方法
        'page': 'getPosts'
      },
      methods:{
        getPosts(p){
              if(p<1){
                  p = 1
              }
              this.$http.get(this.apiUrl+'?page='+p).then(response => {
                // get body data
                response = response.body
                if(response.length > 0){
                  this.posts = response
                  document.getElementById('next').style.display='block';
                }
                if(response.length < 10){
                  document.getElementById('next').style.display='none';
                }

                //alert(response);
                //console.log(this.posts);
                //alert(this.page)
              })
          },
        //获取class对象
        $class(domclass){
          var odiv = document.getElementsByTagName("*");
          var aResult = []; //定义一个空数组，用来存放与目标className相同的元素
          for(var i = 0; i<odiv.length; i++)
          {//这个是遍历页面中全部元素而后拿他们的class进行对比。若是和咱们传进来的domclass这个参数同样就把他放进数组 aResult中。
            if(odiv[i].className == domclass)
            {
              aResult.push(oDiv[i]);   //获取到的元素推动数组中
            }
            return aResult;   //返回这个放进了domclass元素的数组
          }
        },
          getFirstImg(strs){
              var content = strs;
              var str = /<img [^>]*src=['"]([^'"]+)([^>]*>)/gi;
              var src = str.exec(content);
              if(src===null || src===undefined || src===[]) {
                src='';
              }else {
                src = src[0];
                src = src.replace(/ height="\d+"/g, '');
                src = src.replace(/ width="\d+"/g, '');
              }
              /*document.getElementById('imgs').src = src;
              console.log(src);
              alert(src)*/
              return src;

          },
          replaceDS(str){
            /*[&hellip;]*/
            var dc = str.replace(/\[&hellip;\]/g, '');
            return dc;
          },
          next(){
            scrollTo(0,0);
            this.page++;
            this.showClose();
          },
          pre(){
            scrollTo(0,0);
            this.page--;
          },
          showClose(){
            this.show = !this.show;
          }
      }
    }

</script>

六、创建一个Article.vue获取文章内容

<template>
  <div class="artic">
    <div class="article" v-if="article">
      <div class="box">
        <div class="title">{{article.title.rendered}}</div>
        <div class="line-k"></div>
        <div class="content" v-html="replaceImgHW(article.content.rendered)"></div>
      </div>
    </div>
  </div>
</template>
<style lang="stylus" rel="stylesheet/stylus">
  @import "../assets/css/public.styl"
.artic
  background #ffffff
  width 100%
  .article
    width 100%
    height 100%
    overflow auto
    margin 40px auto 68px auto
    display block
    background #ffffff
    .box
      width 100%
      margin 0 auto
      line-height 2.5
      .title
        font-weight 600
        text-align center
        margin 0 auto 10px auto
        font-rem(20)
        background darkcyan
        color #f2f2f2
      .content
        font-rem(16)
        word-break break-all
        color dimgrey
        padding 8px
        & img
          max-width 90%
          border 1px #ccc solid
          border-radius 5px
          margin-left 5%
        .wp-caption
          width 100%
          text-align center
          & img
            max-width 90%
            border 1px #ccc solid
            border-radius 5px
</style>
<script>
  export default{
    name:'iarticle',
    data() {
      return{
        apiUrl:'http://www.egtch.com/wp-json/wp/v2/posts/',
        article:{},
        id: this.$route.query.id
      }
    },
    created(){
      this.getArticle();
    },
    watch: {
      // 若是路由有变化，会再次执行该方法
      'this.id': 'getArticle'
    },
    methods:{
      getArticle(){
        // GET /someUrl
        this.$http.get(this.apiUrl+this.id).then(response => {
          // get body data
          response = response.body
          this.article = response
          //alert(response);
          //console.log(this.article);
          //alert(this.id)
        })
      },
      replaceImgHW(strs){
        var st1 = strs.replace(/ height="\d+"/g,'');
        var st2 = st1.replace(/ width="\d+"/g,'');
        var st3 = st2.replace(/width: \d+px/g,'');
        var st4 = st3.replace(/ style/g,'');
        var st5 = st4.replace(/=""/g,'');
        var st = st5.replace(/href=/g,'target="_blank" href=');
        return st;
      }
    }
  }
</script>

七、再新建一个Categories.vue读取分类

<template>
  <div class="cats">
    <div class="categories" v-if="categories">
      <div v-for="(item, index) in categories">
        <div class="categories-item" v-if="categories[index].parent != 0">
          <router-link :to="{path:'/postcat',query: {id:categories[index].id}}"><span v-html="icoIn[index]"></span><span>{{categories[index].name}}</span><span class="cat">{{categories[index].slug}}</span><i class="fa fa-angle-right" aria-hidden="true"></i></router-link>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
/*import Vue from 'vue'
import VueResource from 'vue-resource'
Vue.use(VueResource)*/
export default {
  data() {
    return{
      categories:{},
      catUrl:'http://www.egtch.com/wp-json/wp/v2/categories?per_page=15',
      icoIn:{}
    }
  },
  created(){
      this.getCat()
      this.icoIn = [
          '<i class="fa fa-html5" aria-hidden="true"></i>',
          '<i class="fa fa-coffee" aria-hidden="true"></i>',
          '<i class="fa fa-code" aria-hidden="true"></i>',
          '<i class="fa fa-file-code-o" aria-hidden="true"></i>',
          '<i class="fa fa-sticky-note-o" aria-hidden="true"></i>',
          '<i class="fa fa-linux" aria-hidden="true"></i>',
          '<i class="fa fa-sun-o" aria-hidden="true"></i>',
          '<i class="fa fa-superscript" aria-hidden="true"></i>',
          '<i class="fa fa-caret-square-o-down" aria-hidden="true"></i>',
          '<i class="fa fa-caret-square-o-down" aria-hidden="true"></i>',
          '<i class="fa fa-caret-square-o-down" aria-hidden="true"></i>',
          '<i class="fa fa-caret-square-o-down" aria-hidden="true"></i>',
          '<i class="fa fa-sort-alpha-asc" aria-hidden="true"></i>',
          '<i class="fa fa-caret-square-o-down" aria-hidden="true"></i>',
          '<i class="fa fa-caret-square-o-down" aria-hidden="true"></i>'
      ]
  },
  methods:{
      getCat(){
        this.$http.get(this.catUrl).then(response => {
          response = response.body;
          this.categories = response;
      });
      }
  }
}
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style lang="stylus" rel="stylesheet/stylus">
  @import "../assets/css/public.styl"
  .cats
    background #ffffff
    width 100%
    .categories
      width 95%
      height 100%
      overflow auto
      margin 48px auto 68px auto
      display block
      .categories-item
        text-align center
        width 100%
        height 60px
        background #ffffff
        border-bottom 1px #f2f2f2 solid
        float left
        display block
        & > a
          display block
          color #000
          height 100%
          padding 10px 0
          font-rem(16)
          & span
            float left
            padding-left 5px
            line-height 40px
            &.cat
              color #CCC
              font-rem(14)
            & i
              font-rem(14)
              color darkcyan
          & i
            float right
            padding-right 10px
            font-rem(24)
            color #CCC
            line-height 40px

</style>

八、创建一个Postcat.vue来获取分类目录下的文章

<template>
  <div class="psc">
    <div class="postcat">
      <div class="box" v-for="(item, index) in postcat">
        <div class="post">
          <router-link :to="{path:'/article',query: {id:postcat[index].id}}">{{postcat[index].title.rendered}}</router-link>
          <div class="line-k"></div>
          <div class="postcat-img" v-html="getFirstImg(postcat[index].content.rendered)"></div>
          <div class="description" v-html="replaceDS(postcat[index].excerpt.rendered)"></div>
        </div>
      </div>
      <a id="ipre" @click="ipre"><i class="fa fa-angle-left" aria-hidden="true"></i>PREVIOUS</a>
      <a id="inext" @click="inext">NEXT<i class="fa fa-angle-right" aria-hidden="true"></i></a>
    </div>
  </div>
</template>
<style lang="stylus" rel="stylesheet/stylus">
  @import "../assets/css/public.styl"
  @import "../assets/css/font-awesome.min.css"
.psc
  background #ffffff
  width 100%
  .postcat
    width 100%
    height 100%
    overflow auto
    margin 40px auto 68px auto
    display block
    & a
      color darkcyan
      padding 5px
      border-radius 2px
      &#ipre
        float left
        font-rem(18)
        padding 5px 10px 10px 10px
        line-height 32px
        & i
          font-rem(28)
          margin-right 10px
          float left
      &#inext
        float right
        font-rem(18)
        padding 5px 10px 10px 10px
        line-height 32px
        & i
          font-rem(28)
          margin-left 10px
          float right
    .box
      width 100%
      margin 10px auto
      background #ffffff
      padding 10px 0
      line-height 1.5
      border-bottom 6px solid #F2F2F2
      .post
        width 96%
        margin 0 auto
        & a
          color darkcyan
          background none
          font-rem(18)
          margin 0 auto 5px auto
          padding 5px 0
        .postcat-img
          width 90%
          margin 0 auto
          padding 5px 0 0 0
          & > img
            max-width 100%
            border 2px solid #CCC
            border-radius 5px
        .description
          font-rem(16)
          padding-top 5px
          color dimgrey

</style>
<script>
  export default{
    name:'ipostcat',
    data() {
      return{
        postcatUrl:'http://www.egtch.com/wp-json/wp/v2/posts?categories='+this.$route.query.id+'&page=',
        postcat:{},
        ipage: 1,
        show: false
      }
    },
    created(){
      this.getPostcat(this.ipage)
    },
    watch: {
      // 若是路由有变化，会再次执行该方法
      'ipage': 'getPostcat'
    },
    methods:{
      getPostcat(p){
        // GET /someUrl
        if(p<1){
          p = 1
        }
        this.$http.get(this.postcatUrl+p).then(response => {
          // get body data
          response = response.body
          if(response.length > 0){
            this.postcat = response
            document.getElementById('inext').style.display='block';
          }
          if(response.length < 10){
            document.getElementById('inext').style.display='none';
          }

          //alert(response);
          //console.log(this.postcat);
          //alert(this.ipage)
        })
      },
      getFirstImg(strs){
        var content = strs;
        var str = /<img [^>]*src=['"]([^'"]+)([^>]*>)/gi;
        var src = str.exec(content);
        if(src===null || src===undefined || src===[]) {
          src='';
        }else {
          src = src[0];
          src = src.replace(/ height="\d+"/g, '');
          src = src.replace(/ width="\d+"/g, '');
        }
        /*document.getElementById('imgs').src = src;
         console.log(src);
         alert(src)*/
        return src;

      },
      replaceDS(str){
        /*[&hellip;]*/
        var dc = str.replace(/\[&hellip;\]/g, '');
        return dc;
      },
      inext(){
        scrollTo(0,0);
        this.ipage++;
      },
      ipre(){
        scrollTo(0,0);
        this.ipage--;
      },
      showClose(){
        this.show = !this.show;
      }
    }
  }
</script>

以上咱们就能够完成了得到文章以及分类目录下的文章的相关代码。看上去是否是很简单，使用vuejs确实可让咱们省去不少的DOM操做。
更多代码和实例，请直接查看本项目在github中的实例地址为：
https://github.com/king2088/V...，若是你喜欢本实例，请记得在github上给我加星哦！
演示地址：
http://www.egtch.com/VueEgtch/本程序会后续还会进行相应的更新维护，但愿你们关注，也但愿你们关注vuejs