详解搭建一个vue-cli的移动端H5开发模板

if (loader) {
loaders.push({
loader: loader + '-loader',
options: Object.assign({}, loaderOptions, {
sourceMap: options.sourceMap
})
})
}

// Extract CSS when that option is specified
// (which is the case during production build)
if (options.extract) {
return ExtractTextPlugin.extract({
use: loaders,
fallback: 'vue-style-loader'
})
} else {
return ['vue-style-loader'].concat(loaders)
}
}

3.在 main.js 设置 html 跟字体大小

let cale = window.screen.availWidth > 750 ? 2 : window.screen.availWidth / 375
window.document.documentElement.style.fontSize = `${100 * cale}px`

这是最简单的适配方法，后续跟单独对移动端 rem 适配做详细解读。

路由配置

1.通过配置路由对象的 meta[keepAlive]值来区分页面是否需要缓存

routes: [
 {
  path: '/',
  name: 'index',
  meta: { keepAlive: true }, //需要缓存
  component: resolve => {
   require(['../views/index'], resolve)
  }
 },
 {
  path: '/list',
  name: 'listr',
  meta: { keepAlive: false }, //不需要缓存
  component: resolve => {
   require(['../views/list'], resolve)
  }
 }
]

2.在 app.vue 做缓存判断

<div id="app">
 <router-view v-if="!$route.meta.keepAlive"></router-view>
 <keep-alive>
  <router-view v-if="$route.meta.keepAlive"></router-view>
 </keep-alive>
</div>

axios 请求封装

1.设置请求拦截和响应拦截

const PRODUCT_URL = 'https://xxxx.com'
const MOCK_URL = 'http://xxxx.com'
let http = axios.create({
 baseURL: process.env.NODE_ENV === 'production' ? PRODUCT_URL : MOCK_URL
})
// 请求拦截器
http.interceptors.request.use(
 config => {
  // 设置token，Content-Type
  var token = sessionStorage.getItem('UserLoginToken')
  config.headers['token'] = token
  config.headers['Content-Type'] = 'application/json;charset=UTF-8'
  // 请求显示loading效果
  if (config.loading === true) {
   vm.$loading.show()
  }
  return config
 },
 error => {
  vm.$loading.hide()
  return Promise.reject(error)
 }
)
// 响应拦截器
http.interceptors.response.use(
 res => {
  vm.$loading.hide()
  // token失效，重新登录
  if (res.data.code === 401) {
   // 重新登录
  }
  return res
 },
 error => {
  vm.$loading.hide()
  return Promise.reject(error)
 }
)