一、创建vue项目
npm install vue-cli -g #-g全局
(sudo)npm install vue-cli -g #mac笔记本 vue-init webpack myvue #项目的名字
cd muvue
npm install
npm run dev
二、目录结构的说明
出现下面这样的图就说明成功了
三、import和require的区别
import一定要放在文件顶部,他相当于一个指针引用了文件,并没有吧文件包含进来,需要调用文件时才引入
require可以吧文件放在任何位置,他是吧文件直接包含进来
四、设置文件路径的流程
1)建立组件(.vue的文件)
2)配置路由(index.js文件中配置)
3)<router-link></router-link>
4)<router-view></router-view>
5)import 包名 from "组件路径"
6)comonents进行注册
五、实现异步加载
//异步
vue-resource:实现异步加载数据(已经弃用)
axios:实现异步加载数据
npm install axios --save-dev
npm install vue-axios --save-dev
六、VUE的生命周期
1、定义vue对象并实例化
2、执行created函数
3、编译模板,只会编译template的模板
4、吧HTML元素渲染到页面当中
5、执行mounted函数,(加载)相当于onload
6、如果有元素的更新,就执行update函数
7、销毁实例
六、项目实战
仿抽屉网站
ALL.vue
<template>
<div class='box'>
<ul>
<li v-for='item in arr'>
<div class='p1'>
<router-link :to="{path:'/detail',query:{ids:item.id}}">{{item.content}} </router-link>
</div>
<div class="p2">
<img :src="item.imgUrl">
</div>
</li> </ul> </div>
</template> <script>
export default {
name: 'HelloWorld',
data () {
return {
arr: []
}
},
mounted () {
var url = '../../static/news.json'
var self=this;
this.$axios.get(url)
.then(function (response) {
console.log(response.data.result.data);
self.arr = response.data.result.data;
})
.catch(function (error) {
console.log(error);
})
}
}
</script> <!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
h1, h2 {
font-weight: normal;
} ul {
list-style-type: none;
padding: 0;
} li {
display: inline-block;
margin: 0 10px;
} a {
color: #42b983;
}
.box{
width: 980px;
}
.p1{
float:left;
width:780px;
}
img{
float:right;
}
</style>
DETAIL.vue
<template>
<div class="box">
<h1>我是详细页面{{id}}</h1>
<ul>
<li>
<div class="p1">
{{obj.content}}
</div>
<div class="p2">
<img :src="obj.imgUrl">
</div> </li>
</ul>
</div>
</template> <script>
export default {
name: 'Detail',
data () {
return {
obj:{} ,
id:this.$route.query.ids
}
},
mounted(){
var url = "../../static/news.json"
var self =this;
this.$axios.get(url,{
params:{id:this.id}
})
.then(function (response) {
//console.log(response.data.result.data);
self.obj = response.data.result.data[0];
})
.catch(function (error) {
console.log(error);
})
}
}
</script> <!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
h1, h2 {
font-weight: normal;
} ul {
list-style-type: none;
padding: 0;
} li {
display: inline-block;
margin: 0 10px;
} a {
color: #42b983;
}
.box{
width: 980px;
} .p1{
float:left;
width:700px;
}
.p2{
float:right;
}
</style>
DUANZI.vue
<template>
<div>
<h1> 我是段子手</h1>
</div>
</template> <script>
export default {
name: 'HelloWorld',
data () {
return { }
}
}
</script> <!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
h1, h2 {
font-weight: normal;
}
ul {
list-style-type: none;
padding: 0;
}
li {
display: inline-block;
margin: 0 10px;
}
a {
color: #42b983;
}
</style>
NaveList.vue
<template>
<div>
<router-link to="/">首页</router-link>
<router-link to="/news">新闻</router-link>
<router-link to="/duanzi">段子</router-link>
</div>
</template> <script>
export default {
name: 'HelloWorld',
data () {
return { }
}
}
</script> <!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
h1, h2 {
font-weight: normal;
}
ul {
list-style-type: none;
padding: 0;
}
li {
display: inline-block;
margin: 0 10px;
}
a {
color: #42b983;
}
</style>
NEWS.vue
<template>
<div>
<h1> 我是新闻</h1> </div>
</template> <script>
export default {
name: 'HelloWorld',
data () {
return { }
}
}
</script> <!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
h1, h2 {
font-weight: normal;
}
ul {
list-style-type: none;
padding: 0;
}
li {
display: inline-block;
margin: 0 10px;
}
a {
color: #42b983;
}
</style>
index.js
import Vue from 'vue'
import Router from 'vue-router'
import HelloWorld from '@/components/HelloWorld'
import ALL from '@/components/All'
import NEWS from '@/components/NEWS'
import DUANZI from '@/components/duanzi'
import Detail from '@/components/Detail' Vue.use(Router) export default new Router({
routes: [
{
path: '/hw',
name: 'HelloWorld',
component: HelloWorld
},
{
path: '/',
name: 'ALL',
component: ALL
},
{
path: '/news',
name: 'NEWS',
component: NEWS
},
{
path: '/duanzi',
name: 'duanzi',
component: DUANZI
},
{
path: '/detail',
name: 'Detail',
component: Detail
}, ]
})
App.vue
<template>
<div id="app">
<NavList></NavList>
<router-view></router-view>
</div>
</template> <script>
import NavList from './components/NavList'
export default {
name: 'App',
components: {NavList}
}
</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;
}
</style>
main.js
// 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'
import axios from 'axios'
import VueAxios from 'vue-axios' Vue.prototype.$axios = axios; //Vue.use(axios, VueAxios)
//Vue.config.productionTip = false /* eslint-disable no-new */
new Vue({
el: '#app',
router,
components: { App },
template: '<App/>'
})
项目需要注意的问题
问题一:在手动执行webpack app/a.js publicndle.js打包时出错的解决方法需要修改为: require("style-loader!css-loader!./style.css")
问题2:脚手架生成项目后,运行 npm run dev启动项目后,
如果想把地址栏中的 #去掉,如:http://localhost:8080/#/news,需要在
router文件夹下的index.js文件中,加入 mode: "history"
如果想把地址栏中的 #去掉,如:http://localhost:8080/#/news,需要在
router文件夹下的index.js文件中,加入 mode: "history"
问题三:引入axios的2种方法:
需要在main.js中进行设置:这2种方法都可以,但引用顺序不能翻转。