Vue（十七）模块化开发

模块化开发

　　使用vue-cli创建项目

1. vue-router模块化

引入vue-router

cnpm install vue-router -S

1.1 编辑main.js

import Vue from 'vue'
import App from './App.vue'
import vueRouter from 'vue-router'

import routerConfig from './router.config.js'

//使用vue-router
Vue.use(vueRouter);

const router = new vueRouter(routerConfig)

new Vue({
  el: '#app',
  render: h => h(App),
  router
})

　　

1.2 编辑App.vue

<template>
  <div id="app">
    <h3>{{msg}}</h3>
    <div>
      <router-link to="/home">主页</router-link>
      <router-link to="/news">新闻</router-link>
    </div>
    <div>
      <keep-alive>
        <router-view></router-view>
      </keep-alive>
    </div>
  </div>
</template>

<script>
export default {
  name: 'app',
  data () {
    return {
      msg: 'Welcome to Your Vue.js App'
    }
  },
  mounted () {
    console.log(this.$route)
  },
  watch:{
    $route:function(newView,oldView){
      console.log('路由发生变化，跳转到' + newView.path + '，旧的路由地址' + oldView.path)
    }
  }
}
</script>

<style>
#app {
  font-family: 'Avenir', Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}

h1, h2 {
  font-weight: normal;
}

ul {
  list-style-type: none;
  padding: 0;
}

li {
  display: inline-block;
  margin: 0 10px;
}

a {
  color: #42b983;
}
</style>

新建文件夹components,创建文件Home.vue,News.vue

1.3 编辑router.config.js

import Home from './components/Home.vue'
import News from './components/News.vue'

export default {
    routes:[
        {
            path:'/home',
            component:Home
        },
        {
            path:'/news',
            component:News
        }
    ]
}
　　

 　　页面展示

2. axios模块化

cnpm install axios -S

使用axios的两种方式：

方式1：在每个组件中引入axios

<template>
  <div id="app">
    <h3>{{msg}}</h3>
    <div>
      <router-link to="/home">主页</router-link>
      <router-link to="/news">新闻</router-link>
    </div>
    <div>
      <keep-alive>
        <router-view></router-view>
      </keep-alive>
    </div>

    <hr>

    <button @click="send">发送ajax请求</button>

  </div>
</template>

<script>
import axios from 'axios'

export default {
  name: 'app',
  data () {
    return {
      msg: 'Welcome to Your Vue.js App'
    }
  },
  mounted () {
    console.log(this.$route)
  },
  watch:{
    $route:function(newView,oldView){
      console.log('路由发生变化，跳转到' + newView.path + '，旧的路由地址' + oldView.path)
    }
  },
  methods: {
    send(){
      axios.get('https://api.github.com/users/Somnusy')
        .then(response=>{
          console.log(response.data);
        }).catch(error=>{
          console.log(error);
        })
    }
  }
}
</script>

<style>
#app {
  font-family: 'Avenir', Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}

h1, h2 {
  font-weight: normal;
}

ul {
  list-style-type: none;
  padding: 0;
}

li {
  display: inline-block;
  margin: 0 10px;
}

a {
  color: #42b983;
}
</style>

方式2：在main.js中全局引入axios并添加到Vue原型中

axios使用  this.$http

3. 为自定义组件添加事件

　　　　创建组件 MyButton.vue
　　　　

　　　　使用自定义组件