vue项目实现路由按需加载的3种方式

vue异步组件技术 ==== 异步加载
vue-router配置路由 , 使用vue的异步组件技术 , 能够实现按需加载 .
可是,这种状况下一个组件生成一个js文件

/* vue异步组件技术 */ { path: '/home', name: 'home', component: resolve => require(['@/components/home'],resolve) },{ path: '/index', name: 'Index', component: resolve => require(['@/components/index'],resolve) },{ path: '/about', name: 'about', component: resolve => require(['@/components/about'],resolve) } 

 

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组件懒加载方案二 路由懒加载(使用import)

// 下面2行代码，没有指定webpackChunkName，每一个组件打包成一个js文件。 /* const Home = () => import('@/components/home') const Index = () => import('@/components/index') const About = () => import('@/components/about') */ // 下面2行代码，指定了相同的webpackChunkName，会合并打包成一个js文件。 把组件按组分块 const Home = () => import(/* webpackChunkName: 'ImportFuncDemo' */ '@/components/home') const Index = () => import(/* webpackChunkName: 'ImportFuncDemo' */ '@/components/index') const About = () => import(/* webpackChunkName: 'ImportFuncDemo' */ '@/components/about')
 { path: '/about', component: About }, { path: '/index', component: Index }, { path: '/home', component: Home
}

 

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webpack提供的require.ensure()
vue-router配置路由，使用webpack的require.ensure技术，也能够实现按需加载。
这种状况下，多个路由指定相同的chunkName，会合并打包成一个js文件。

/* 组件懒加载方案三: webpack提供的require.ensure() */ { path: '/home', name: 'home', component: r => require.ensure([], () => r(require('@/components/home')), 'demo') }, { path: '/index', name: 'Index', component: r => require.ensure([], () => r(require('@/components/index')), 'demo') }, { path: '/about', name: 'about', component: r => require.ensure([], () => r(require('@/components/about')), 'demo-01') }

 

参考：https://www.jianshu.com/p/876e1b85adb6