require.context()实现自动注册组件。
/**
* main.js
* 读取componetns下的vue文件并自动注册全局组件
*/
const requireComponent = require.context('./components', false, /.vue$/)requireComponent.keys().forEach(fileName => {
const componentConfig = requireComponent(fileName)
const componentName = fileName.replace(/^.//, '').replace(/.vue/, '')
Vue.component(componentName, componentConfig.default || componentConfig)
})
4. 自动注册vuex模块
之前我们是这么注册vuex模块的
/* module.js */import alarm from './modules/alarm'
import history from './modules/history'
import factory from './modules/factory'
import contact from './modules/contact'
import company from './modules/company';
import deviceManage from './modules/device-manage'
import deviceModel from './modules/device-model'
import deviceActivation from './modules/device-activation'
import user from './modules/user'
import role from './modules/role'
import setAlarm from './modules/setAlarm'
import factoryMode from "./modules/factoryMode";
import ScreenDeviceWatch from './modules/screen-device-watch'
import ScreenDeviceForecast from './modules/screen-device-forecast'
export default {
alarm,
company,
deviceManage,
deviceModel,
user,
factory,
contact,
deviceActivation,
history,
role,
setAlarm,
factoryMode,
ScreenDeviceWatch,
ScreenDeviceForecast,
}
/* index.js */
import Vue from 'vue'
import Vuex from 'vuex'
import state from './state'
import getters from './getters'
import modules from './modules'
import actions from './actions'
import mutations from './mutations'
Vue.use(Vuex)
export default new Vuex.Store({
state,
getters,
mutations,
actions,
modules
})
可以发现每个模块都要我们手动导入，然后加入到module里面，如此重复。当模块不多还好，假如项目大了，有50个模块，那就得要做很多重复的工作。
跟注册组件一样，我们还是利用
require.context来实现。
/**
* 读取./modules下的所有js文件并注册模块
*/
const requireModule = require.context('./modules', false, /.js$/)
const modules = {}requireModule.keys().forEach(fileName => {
const moduleName = fileName.replace(/(./|.js)/g, '')
modules[moduleName] = {
namespaced: true,
...requireModule(fileName).default
}
})
export default modules
/* index.js */
import Vue from 'vue'
import Vuex from 'vuex'
import modules from './modules'
