unplugin-auto-import 是基于 unplugin 写的，支持 Vite、Webpack、Rollup、esbuild 多个打包工具。我们可以使用unplugin-auto-import实现依赖的自动导入，不用再频繁导入依赖包，从而提交我们的开发效率。如下，以vue3+vite中使用改插件为例。
安装
使用前我们需要先安装该依赖：
$ pnpm i unplugin-auto-import -D配置
安装好依赖后，我们就可以在vite中配置改插件了，其在vite中的配置方法如下：
// vite.config.ts
import AutoImport from 'unplugin-auto-import/vite'export default defineConfig({plugins: [AutoImport({imports: ['vue','vue-router','vue-i18n','@vueuse/core','pinia',],dts: 'types/auto-imports.d.ts', // 使用typescript，需要指定生成对应的d.ts文件或者设置为true,生成默认导入d.ts文件dirs: ['src/stores', 'src/composables', 'src/hooks'],}),],
})如上就配置好了一个自动导入的插件，我们通过AutoImport插件实现了初始化导入vue、vue-router等依赖库，设置本地项目自动导入路径。其生成的声明文件如下：
/* eslint-disable */
/* prettier-ignore */
// @ts-nocheck
// noinspection JSUnusedGlobalSymbols
// Generated by unplugin-auto-import
export {}
declare global {
const EffectScope: typeof import('vue')['EffectScope']
const computed: typeof import('vue')['computed']
const computedAsync: typeof import('@vueuse/core')['computedAsync']
const computedEager: typeof import('@vueuse/core')['computedEager']
const computedInject: typeof import('@vueuse/core')['computedInject']
const computedWithControl: typeof import('@vueuse/core')['computedWithControl']
const controlledComputed: typeof import('@vueuse/core')['controlledComputed']
const controlledRef: typeof import('@vueuse/core')['controlledRef']
const createApp: typeof import('vue')['createApp']
const createEventHook: typeof import('@vueuse/core')['createEventHook']
const createGlobalState: typeof import('@vueuse/core')['createGlobalState']
const createInjectionState: typeof import('@vueuse/core')['createInjectionState']
const createPinia: typeof import('pinia')['createPinia']
const createReactiveFn: typeof import('@vueuse/core')['createReactiveFn']
const createReusableTemplate: typeof import('@vueuse/core')['createReusableTemplate']
const createSharedComposable: typeof import('@vueuse/core')['createSharedComposable']
const createTemplatePromise: typeof import('@vueuse/core')['createTemplatePromise']
const createUnrefFn: typeof import('@vueuse/core')['createUnrefFn']
const customRef: typeof import('vue')['customRef']
const debouncedRef: typeof import('@vueuse/core')['debouncedRef']
const debouncedWatch: typeof import('@vueuse/core')['debouncedWatch']
const defineAsyncComponent: typeof import('vue')['defineAsyncComponent']
const defineComponent: typeof import('vue')['defineComponent']
const defineStore: typeof import('pinia')['defineStore']
const eagerComputed: typeof import('@vueuse/core')['eagerComputed']
const effectScope: typeof import('vue')['effectScope']
const extendRef: typeof import('@vueuse/core')['extendRef']
const getActivePinia: typeof import('pinia')['getActivePinia']
const getCurrentInstance: typeof import('vue')['getCurrentInstance']
const getCurrentScope: typeof import('vue')['getCurrentScope']
const h: typeof import('vue')['h']
const ignorableWatch: typeof import('@vueuse/core')['ignorableWatch']
const inject: typeof import('vue')['inject']
const isDark: typeof import('../src/composables/theme')['isDark']
const makeDestructurable: typeof import('@vueuse/core')['makeDestructurable']
const mapActions: typeof import('pinia')['mapActions']
const mapGetters: typeof import('pinia')['mapGetters']
const mapState: typeof import('pinia')['mapState']
const mapStores: typeof import('pinia')['mapStores']
const mapWritableState: typeof import('pinia')['mapWritableState']
const markRaw: typeof import('vue')['markRaw']
const nextTick: typeof import('vue')['nextTick']
const onActivated: typeof import('vue')['onActivated']
const onBeforeMount: typeof import('vue')['onBeforeMount']
const onBeforeRouteLeave: typeof import('vue-router')['onBeforeRouteLeave']
const onBeforeRouteUpdate: typeof import('vue-router')['onBeforeRouteUpdate']
const onBeforeUnmount: typeof import('vue')['onBeforeUnmount']
const onBeforeUpdate: typeof import('vue')['onBeforeUpdate']
const onClickOutside: typeof import('@vueuse/core')['onClickOutside']
const onDeactivated: typeof import('vue')['onDeactivated']
const onErrorCaptured: typeof import('vue')['onErrorCaptured']
const onKeyStroke: typeof import('@vueuse/core')['onKeyStroke']
const onLongPress: typeof import('@vueuse/core')['onLongPress']
const onMounted: typeof import('vue')['onMounted']
const onRenderTracked: typeof import('vue')['onRenderTracked']
const onRenderTriggered: typeof import('vue')['onRenderTriggered']
const onScopeDispose: typeof import('vue')['onScopeDispose']
const onServerPrefetch: typeof import('vue')['onServerPrefetch']
const onStartTyping: typeof import('@vueuse/core')['onStartTyping']
const onUnmounted: typeof import('vue')['onUnmounted']
const onUpdated: typeof import('vue')['onUpdated']
const pausableWatch: typeof import('@vueuse/core')['pausableWatch']
const preferredLanguages: typeof import('../src/composables/i18n-locale')['preferredLanguages']
const provide: typeof import('vue')['provide']
const reactify: typeof import('@vueuse/core')['reactify']
const reactifyObject: typeof import('@vueuse/core')['reactifyObject']
const reactive: typeof import('vue')['reactive']
const reactiveComputed: typeof import('@vueuse/core')['reactiveComputed']
const reactiveOmit: typeof import('@vueuse/core')['reactiveOmit']
const reactivePick: typeof import('@vueuse/core')['reactivePick']
const readonly: typeof import('vue')['readonly']
const ref: typeof import('vue')['ref']
const refAutoReset: typeof import('@vueuse/core')['refAutoReset']
const refDebounced: typeof import('@vueuse/core')['refDebounced']
const refDefault: typeof import('@vueuse/core')['refDefault']
const refThrottled: typeof import('@vueuse/core')['refThrottled']
const refWithControl: typeof import('@vueuse/core')['refWithControl']
const resolveComponent: typeof import('vue')['resolveComponent']
const resolveRef: typeof import('@vueuse/core')['resolveRef']
const resolveUnref: typeof import('@vueuse/core')['resolveUnref']
const setActivePinia: typeof import('pinia')['setActivePinia']
const setMapStoreSuffix: typeof import('pinia')['setMapStoreSuffix']
const shallowReactive: typeof import('vue')['shallowReactive']
const shallowReadonly: typeof import('vue')['shallowReadonly']
const shallowRef: typeof import('vue')['shallowRef']
const storeToRefs: typeof import('pinia')['storeToRefs']
const syncRef: typeof import('@vueuse/core')['syncRef']
const syncRefs: typeof import('@vueuse/core')['syncRefs']
const templateRef: typeof import('@vueuse/core')['templateRef']
const throttledRef: typeof import('@vueuse/core')['throttledRef']
const throttledWatch: typeof import('@vueuse/core')['throttledWatch']
const toRaw: typeof import('vue')['toRaw']
const toReactive: typeof import('@vueuse/core')['toReactive']
const toRef: typeof import('vue')['toRef']
const toRefs: typeof import('vue')['toRefs']
const toValue: typeof import('vue')['toValue']
const toggleDark: typeof import('../src/composables/theme')['toggleDark']
const triggerRef: typeof import('vue')['triggerRef']
const tryOnBeforeMount: typeof import('@vueuse/core')['tryOnBeforeMount']
const tryOnBeforeUnmount: typeof import('@vueuse/core')['tryOnBeforeUnmount']
const tryOnMounted: typeof import('@vueuse/core')['tryOnMounted']
const tryOnScopeDispose: typeof import('@vueuse/core')['tryOnScopeDispose']
const tryOnUnmounted: typeof import('@vueuse/core')['tryOnUnmounted']
const unref: typeof import('vue')['unref']
const unrefElement: typeof import('@vueuse/core')['unrefElement']
const until: typeof import('@vueuse/core')['until']
const useAccess: typeof import('../src/composables/access')['useAccess']
const useActiveElement: typeof import('@vueuse/core')['useActiveElement']
const useAnimate: typeof import('@vueus
const useAsyncQueue: typeof import('@vueuse/core')['useAsyncQueue']
const useAsyncState: typeof import('@vueuse/core')['useAsyncState']
const useAttrs: typeof import('vue')['useAttrs']
const useAuthorization: typeof import('../src/composables/authorization')['useAuthorization']
const useBase64: typeof import('@vueuse/core')['useBase64']
const useBattery: typeof import('@vueuse/core')['useBattery']
const useBluetooth: typeof import('@vueuse/core')['useBluetooth']
const useBreakpoints: typeof import('@vueuse/core')['useBreakpoints']
const useBroadcastChannel: typeof import('@vueuse/core')['useBroadcastChannel']
const useBrowserLocation: typeof import('@vueuse/core')['useBrowserLocation']
const useCached: typeof import('@vueuse/core')['useCached']
const useClipboard: typeof import('@vueuse/core')['useClipboard']
const useCloned: typeof import('@vueuse/core')['useCloned']
const useColorMode: typeof import('@vueuse/core')['useColorMode']
const useCompConsumer: typeof import('../src/composables/comp-consumer')['useCompConsumer']
const useConfirmDialog: typeof import('@vueuse/core')['useConfirmDialog']
const useCounter: typeof import('@vueuse/core')['useCounter']
const useCssModule: typeof import('vue')['useCssModule']
const useCssVar: typeof import('@vueuse/core')['useCssVar']
const useCssVars: typeof import('vue')['useCssVars']
const useCurrentElement: typeof import('@vueuse/core')['useCurrentElement']
const useCurrentRoute: typeof import('../src/composables/current-route')['useCurrentRoute']
const useCycleList: typeof import('@vueuse/core')['useCycleList']
const useDark: typeof import('@vueuse/core')['useDark']
const useDateFormat: typeof import('@vueuse/core')['useDateFormat']
const useDebounce: typeof import('@vueuse/core')['useDebounce']
const useDebounceFn: typeof import('@vueuse/core')['useDebounceFn']
const useDebouncedRefHistory: typeof import('@vueuse/core')['useDebouncedRefHistory']
const useElementVisibility: typeof import('@vueuse/core')['useElementVisibility']
const useEmployeeSeletor: typeof import('../src/hooks/employee')['useEmployeeSeletor']
const useGlobalConfig: typeof import('../src/composables/global-config')['useGlobalConfig']
const useI18n: typeof import('vue-i18n')['useI18n']
const useI18nLocale: typeof import('../src/composables/i18n-locale')['useI18nLocale']
const useIdle: typeof import('@vueuse/core')['useIdle']
const useImage: typeof import('@vueuse/core')['useImage']
const useInfiniteScroll: typeof import('@vueuse/core')['useInfiniteScroll']
const useIntersectionObserver: typeof import('@vueuse/core')['useIntersectionObserver']
const useInterval: typeof import('@vueuse/core')['useInterval']
const useIntervalFn: typeof import('@vueuse/core')['useIntervalFn']
const useKeyModifier: typeof import('@vueuse/core')['useKeyModifier']
const useLastChanged: typeof import('@vueuse/core')['useLastChanged']
const useLayoutMenu: typeof import('../src/stores/layout-menu')['useLayoutMenu']
const useLink: typeof import('vue-router')['useLink']
const useLoading: typeof import('../src/composables/base-loading')['useLoading']
const useLoadingCheck: typeof import('../src/composables/loading')['useLoadingCheck']
const useLocalStorage: typeof import('@vueuse/core')['useLocalStorage']
const useMagicKeys: typeof import('@vueuse/core')['useMagicKeys']
const useManualRefHistory: typeof import('@vueuse/core')['useManualRefHistory']
const useMediaControls: typeof import('@vueuse/core')['useMediaControls']
const useMediaQuery: typeof import('@vueuse/core')['useMediaQuery']
const useMemoize: typeof import('@vueuse/core')['useMemoize']
const useMemory: typeof import('@vueuse/core')['useMemory']
const useMessage: typeof import('../src/composables/global-config')['useMessage']
const useMetaTitle: typeof import('../src/composables/meta-title')['useMetaTitle']
const useModal: typeof import('../src/composables/global-config')['useModal']
const useMounted: typeof import('@vueuse/core')['useMounted']
const useMouse: typeof import('@vueuse/core')['useMouse']
const useMouseInElement: typeof import('@vueuse/core')['useMouseInElement']
const useMousePressed: typeof import('@vueuse/core')['useMousePressed']
const useMultiTab: typeof import('../src/stores/multi-tab')['useMultiTab']
const useMutationObserver: typeof import('@vueuse/core')['useMutationObserver']
const useNavigatorLanguage: typeof import('@vueuse/core')['useNavigatorLanguage']
const useNetwork: typeof import('@vueuse/core')['useNetwork']
const useNotification: typeof import('../src/composables/global-config')['useNotification']
const useNow: typeof import('@vueuse/core')['useNow']
const useObjectUrl: typeof import('@vueuse/core')['useObjectUrl']
const useOffsetPagination: typeof import('@vueuse/core')['useOffsetPagination']
const useOnline: typeof import('@vueuse/core')['useOnline']
const usePageLeave: typeof import('@vueuse/core')['usePageLeave']
const useParallax: typeof import('@vueuse/core')['useParallax']
const useParentElement: typeof import('@vueuse/core')['useParentElement']
const usePerformanceObserver: typeof import('@vueuse/core')['usePerformanceObserver']
const usePermission: typeof import('@vueuse/core')['usePermission']
const usePointer: typeof import('@vueuse/core')['usePointer']
const usePointerLock: typeof import('@vueuse/core')['usePointerLock']
const usePointerSwipe: typeof import('@vueuse/core')['usePointerSwipe']
const usePost: typeof import('../src/composables/api')['usePost']
const useScreenOrientation: typeof import('@vueuse/core')['useScreenOrientation']
const useScreenSafeArea: typeof import('@vueuse/core')['useScreenSafeArea']
const useScriptTag: typeof import('@vueuse/core')['useScriptTag']
const useScroll: typeof import('@vueuse/core')['useScroll']
const useScrollLock: typeof import('@vueuse/core')['useScrollLock']
const useSessionStorage: typeof import('@vueuse/core')['useSessionStorage']
const useSetGlobalConfig: typeof import('../src/composables/global-config')['useSetGlobalConfig']
const useShare: typeof import('@vueuse/core')['useShare']
const useSlots: typeof import('vue')['useSlots']
const useSorted: typeof import('@vueuse/core')['useSorted']
const useSpeechRecognition: typeof import('@vueuse/core')['useSpeechRecognition']
const useSpeechSynthesis: typeof import('@vueuse/core')['useSpeechSynthesis']
const useStepper: typeof import('@vueuse/core')['useStepper']
const useStorage: typeof import('@vueuse/core')['useStorage']
const useStorageAsync: typeof import('@vueuse/core')['useStorageAsync']
const useStyleTag: typeof import('@vueuse/core')['useStyleTag']
const useSupported: typeof import('@vueuse/core')['useSupported']
const useSwipe: typeof import('@vueuse/core')['useSwipe']
const useTable: typeof import('../src/hooks/pro-table')['useTable']
const useTemplateRefsList: typeof import('@vueuse/core')['useTemplateRefsList']
const useTextDirection: typeof import('@vueuse/core')['useTextDirection']
const useTextSelection: typeof import('@vueuse/core')['useTextSelection']
const useTextareaAutosize: typeof import('@vueuse/core')['useTextareaAutosize']
const useThrottle: typeof import('@vueuse/core')['useThrottle']
const useThrottleFn: typeof import('@vueuse/core')['useThrottleFn']
const useThrottledRefHistory: typeof import('@vueuse/core')['useThrottledRefHistory']
const useTimeAgo: typeof import('@vueuse/core')['useTimeAgo']
const useTimeout: typeof import('@vueuse/core')['useTimeout']
const useTimeoutFn: typeof import('@vueuse/core')['useTimeoutFn']
const useTimeoutPoll: typeof import('@vueuse/core')['useTimeoutPoll']
const useTimestamp: typeof import('@vueuse/core')['useTimestamp']
const useTitle: typeof import('@vueuse/core')['useTitle']
const useToNumber: typeof import('@vueuse/core')['useToNumber']
const useToString: typeof import('@vueuse/core')['useToString']
const useToggle: typeof import('@vueuse/core')['useToggle']
const useTools: typeof import('../src/hooks/self-service')['useTools']
const useTransition: typeof import('@vueuse/core')['useTransition']
const useUrlSearchParams: typeof import('@vueuse/core')['useUrlSearchParams']
const useUserManager: typeof import('../src/hooks/user')['useUserManager']
const useUserMedia: typeof import('@vueuse/core')['useUserMedia']
const useUserStore: typeof import('../src/stores/user')['useUserStore']
const useVModel: typeof import('@vueuse/core')['useVModel']
const useVModels: typeof import('@vueuse/core')['useVModels']
const useVibrate: typeof import('@vueuse/core')['useVibrate']
const useVirtualList: typeof import('@vueuse/core')['useVirtualList']
const useWakeLock: typeof import('@vueuse/core')['useWakeLock']
const useWebNotification: typeof import('@vueuse/core')['useWebNotification']
const useWebSocket: typeof import('@vueuse/core')['useWebSocket']
const useWebWorker: typeof import('@vueuse/core')['useWebWorker']
const useWebWorkerFn: typeof import('@vueuse/core')['useWebWorkerFn']
const useWindowFocus: typeof import('@vueuse/core')['useWindowFocus']
const useWindowScroll: typeof import('@vueuse/core')['useWindowScroll']
const useWindowSize: typeof import('@vueuse/core')['useWindowSize']
const watch: typeof import('vue')['watch']
const watchArray: typeof import('@vueuse/core')['watchArray']
const watchAtMost: typeof import('@vueuse/core')['watchAtMost']
const watchDebounced: typeof import('@vueuse/core')['watchDebounced']
const watchDeep: typeof import('@vueuse/core')['watchDeep']
const watchEffect: typeof import('vue')['watchEffect']
const watchIgnorable: typeof import('@vueuse/core')['watchIgnorable']
const watchImmediate: typeof import('@vueuse/core')['watchImmediate']
const watchOnce: typeof import('@vueuse/core')['watchOnce']
const watchPausable: typeof import('@vueuse/core')['watchPausable']
const watchPostEffect: typeof import('vue')['watchPostEffect']
const watchSyncEffect: typeof import('vue')['watchSyncEffect']
const watchThrottled: typeof import('@vueuse/core')['watchThrottled']
const watchTriggerable: typeof import('@vueuse/core')['watchTriggerable']
const watchWithFilter: typeof import('@vueuse/core')['watchWithFilter']
const whenever: typeof import('@vueuse/core')['whenever']
}
// for type re-export
declare global {
// @ts-ignore
export type { Component, ComponentPublicInstance, ComputedRef, InjectionKey, PropType, Ref, VNode, WritableComputedRef } from 'vue'
}使用
通过如上步骤配置好了之后，我们接下来就可以直接使用这些自动导入的依赖库了，代码如下：
// test.vue
const count = ref(0)
const doubled = computed(() => count.value * 2)如上，我们就不需要再重新导入ref了。
