{"id":10008157,"date":"2023-08-24T19:03:09","date_gmt":"2023-08-24T11:03:09","guid":{"rendered":"https:\/\/blog.itmax.cn\/?p=10008157"},"modified":"2023-08-24T19:03:09","modified_gmt":"2023-08-24T11:03:09","slug":"%e3%80%90nestjs%e7%b3%bb%e5%88%97%e3%80%91%e6%a0%b8%e5%bf%83%e6%a6%82%e5%bf%b5%ef%bc%9amodule%e6%a8%a1%e5%9d%97","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10008157","title":{"rendered":"\u3010NestJS\u7cfb\u5217\u3011\u6838\u5fc3\u6982\u5ff5\uff1aModule\u6a21\u5757"},"content":{"rendered":"

\u524d\u8a00<\/h2>\n

\u6a21\u5757\u6307\u7684\u662f\u4f7f\u7528@Module<\/code>\u88c5\u9970\u5668\u4fee\u9970\u7684\u7c7b\uff0c\u6bcf\u4e2a\u5e94\u7528\u7a0b\u5e8f\u81f3\u5c11\u6709\u4e00\u4e2a\u6a21\u5757\uff0c\u5373\u6839\u6a21\u5757<\/strong>\u3002\u6839\u6a21\u5757\u662fNest<\/code>\u7528\u4e8e\u6784\u5efa\u5e94\u7528\u7a0b\u5e8f\u7684\u8d77\u70b9\uff0c\u7406\u8bba\u4e0aNest<\/code>\u7a0b\u5e8f\u53ef\u80fd\u53ea\u6709\u6839\u6a21\u5757\uff0c\u4f46\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u662f\u5b58\u5728\u591a\u4e2a\u6a21\u5757\u7684\uff0c\u6bcf\u4e2a\u6a21\u5757\u5404\u81ea\u5c01\u88c5\u4e00\u7ec4\u76f8\u5173\u7684\u529f\u80fd\u3002<\/p>\n

\"5-1.png\"<\/p>\n

@Module\u88c5\u9970\u5668<\/h2>\n

@Module()<\/code>\u88c5\u9970\u5668\u53ef\u4ee5\u4f20\u5165\u4e00\u4e2a\u5bf9\u8c61\uff0c\u5c5e\u6027\u503c\u5982\u4e0b\uff1a<\/p>\n\n\n\n\n\n\n\n
providers<\/code><\/th>\n\u5c06\u7531 Nest \u6ce8\u5165\u5668\u5b9e\u4f8b\u5316\u7684\u63d0\u4f9b\u7a0b\u5e8f\uff0c\u5e76\u4e14\u81f3\u5c11\u53ef\u4ee5\u5728\u8be5\u6a21\u5757\u4e2d\u5171\u4eab<\/th>\n<\/tr>\n<\/thead>\n
controllers<\/code><\/td>\n\u8be5\u6a21\u5757\u4e2d\u5b9a\u4e49\u7684\u5fc5\u987b\u5b9e\u4f8b\u5316\u7684\u63a7\u5236\u5668\u96c6<\/td>\n<\/tr>\n
imports<\/code><\/td>\n\u5bfc\u5165\u6a21\u5757\u7684\u5217\u8868\uff0c\u5bfc\u51fa\u8be5\u6a21\u5757\u6240\u9700\u7684\u63d0\u4f9b\u7a0b\u5e8f<\/td>\n<\/tr>\n
exports<\/code><\/td>\n\u8be5\u5b50\u96c6providers<\/code>\u7531\u8be5\u6a21\u5757\u63d0\u4f9b\uff0c\u5e76\u4e14\u5e94\u8be5\u5728\u5bfc\u5165\u8be5\u6a21\u5757\u7684\u5176\u4ed6\u6a21\u5757\u4e2d\u53ef\u7528<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
@Module({\n  imports: [NanjiuModule, UserModule],\n  controllers: [AppController],\n  providers: [AppService],\n})\nexport class AppModule {}<\/code><\/pre>\n
\u6a21\u5757\u5171\u4eab<\/h2>\n
\u5982\u679c\u4f60\u60f3\u628a\u5f53\u524d\u6a21\u5757\u7684service<\/code>\u66b4\u9732\u7ed9\u5176\u5b83\u6a21\u5757\u4f7f\u7528\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528exports<\/code>\u5230\u5904\u8be5\u670d\u52a1<\/p>\n
\u6bd4\u5982\u6211\u4f7f\u7528nest g resource info<\/code>\u65b0\u5efa\u4e86\u4e00\u4e2ainfo\u7c7b\uff0c\u5e76\u4e14\u4f7f\u7528export<\/code>\u5bfc\u51fa\u8be5\u670d\u52a1<\/p>\n
\/\/ info.module.ts\nimport { Module } from '@nestjs\/common';\nimport { InfoService } from '.\/info.service';\nimport { InfoController } from '.\/info.controller';\n\n@Module({\n  controllers: [InfoController],\n  providers: [InfoService], \/\/ \u63d0\u4f9b\u8005\n  exports: [InfoService] \/\/ \u5bfc\u51fa InfoService \u4f9b\u5176\u4ed6\u6a21\u5757\u4f7f\u7528\n})\nexport class InfoModule {}\n<\/code><\/pre>\n
\u7136\u540e\u6211\u5728user<\/code>\u6a21\u5757\u4e2d\u4f7f\u7528imports<\/code>\u5bfc\u5165\u8be5\u6a21\u5757<\/p>\n
\/\/ user.module.ts\nimport { Module } from '@nestjs\/common';\nimport { UserService } from '.\/user.service';\nimport { UserController } from '.\/user.controller';\nimport { InfoModule } from 'src\/info\/info.module';\n\n@Module({\n  imports: [InfoModule], \/\/ \u5bfc\u5165 InfoModule\n  controllers: [UserController],\n  providers: [UserService]\n})\nexport class UserModule {}\n<\/code><\/pre>\n
\u6700\u540e\u5728controller<\/code>\u4e2d\u4f9d\u8d56\u6ce8\u5165\u5e76\u4f7f\u7528<\/p>\n
\/\/ user.controller.ts\nimport { InfoService } from 'src\/info\/info.service';\n\n@Controller('user')\nexport class UserController {\n  constructor(\n    private readonly userService: UserService,\n    private readonly infoService: InfoService, \/\/ \u6ce8\u5165 InfoService\n    ) {}\n\n  @Post()\n  create(@Body() createUserDto: CreateUserDto) {\n    return this.infoService.findAll() \/\/ \u8c03\u7528 InfoService \u7684 findAll \u65b9\u6cd5\n\n    \/\/ return this.userService.create(createUserDto);\n  }\n  \/\/...\n}<\/code><\/pre>\n
\"5-2.png\"<\/p>\n
\u8fd9\u6837\u5c31\u5b8c\u6210\u6a21\u5757\u5171\u4eab\u4e86\uff0c\u53ef\u4ee5\u770b\u5230\u6211\u4eec\u5728user<\/code>\u6a21\u5757\u4e2d\u53ef\u4ee5\u8c03\u7528info<\/code>\u7684\u670d\u52a1<\/p>\n
\u6a21\u5757\u518d\u5bfc\u51fa<\/h2>\n
\u53ef\u4ee5\u628a\u4e00\u4e9b\u5e38\u7528\u7684\uff0c\u516c\u5171\u7684\u6a21\u5757\uff0c\u5168\u90e8\u5148import\u8fdb\u4e00\u4e2aCommonModule\uff0c\u7136\u540e\u518d\u628a\u5b83\u4eec\u4eceexprots\u5168\u90e8\u5bfc\u51fa\uff0c\u4ee5\u540e\u5982\u679c\u6709\u90a3\u4e2a\u6a21\u5757\u60f3\u8981\u4f7f\u7528\u5176\u4e2d\u67d0\u4e2a\u6a21\u5757\u7684Service\uff0c\u53ea\u9700\u8981\u5c06\u8fd9\u4e2aCommonModule\u5bfc\u5165\u5373\u53ef\uff0c\u4e0d\u7528\u518d\u5bfc\u5165\u6240\u6709\u7684\u4f9d\u8d56\u6a21\u5757<\/p>\n
\/\/ common.module.ts\n@Module({\n  imports: [Module1, Module2, Module3, Module4],\n  exports: [Module1, Module2, Module3, Module4],\n})\nexport class CommonModule {}<\/code><\/pre>\n
\u4f9d\u8d56\u6ce8\u5165<\/h2>\n
\u6a21\u5757\u7c7b\u4e5f\u53ef\u4ee5\u6ce8\u5165provider<\/code>\u670d\u52a1<\/p>\n
\n@Module({\n  controllers: [UserController],\n  providers: [UserService],\n})\nexport class UserModule {\n  constructor(private userService: UserService) {}\n}<\/code><\/pre>\n
\u5168\u5c40\u6a21\u5757<\/h2>\n
\u901a\u8fc7@Global()<\/code>\u88c5\u9970\u5668\u58f0\u660e\u4e00\u4e2a\u5168\u5c40\u6a21\u5757\uff0c\u53ea\u9700\u8981\u5728\u6839\u6a21\u5757imports<\/code>\u6ce8\u518c\u8be5\u5168\u5c40\u6a21\u5757\uff0c\u5c31\u53ef\u4ee5\u5728\u5176\u4ed6\u6240\u6709\u6a21\u5757\u5185\u4f7f\u7528\u5b83\u5bfc\u51fa\u7684Service<\/code><\/p>\n
\u6bd4\u5982\uff1a\u5c06info<\/code>\u58f0\u660e\u4e3a\u5168\u5c40\u6a21\u5757<\/p>\n
\/\/ info.module.ts\n@Global() \/\/ \u5168\u5c40\u6a21\u5757\n@Module({\n  controllers: [InfoController],\n  providers: [InfoService], \/\/ \u63d0\u4f9b\u8005\n  exports: [InfoService] \/\/ \u5bfc\u51fa InfoService \u4f9b\u5176\u4ed6\u6a21\u5757\u4f7f\u7528\n})\nexport class InfoModule {}\n<\/code><\/pre>\n
\u7136\u540e\u5728user<\/code>\u6a21\u5757\u4e2d\u65e0\u9700\u5bfc\u5165\uff0c\u53ea\u9700\u4f9d\u8d56\u6ce8\u5165\u5c31\u53ef\u76f4\u63a5\u4f7f\u7528\uff08\u524d\u63d0\u662f\u5df2\u5728\u6839\u6a21\u5757\u5bfc\u5165\uff09<\/p>\n
\/\/ user.controller.ts\nimport { CreateUserDto } from '.\/dto\/create-user.dto';\nimport { InfoService } from 'src\/info\/info.service';\n\n@Controller('user')\nexport class UserController {\n  constructor(\n    private readonly userService: UserService,\n    private readonly infoService: InfoService, \/\/ \u6ce8\u5165 InfoService\n    ) {}\n\n  @Post()\n  create(@Body() createUserDto: CreateUserDto) {\n    return this.infoService.findAll() \/\/ \u8c03\u7528 InfoService \u7684 findAll \u65b9\u6cd5\n  }\n}<\/code><\/pre>\n
\"5-3.png\"<\/p>\n
\u52a8\u6001\u6a21\u5757<\/h2>\n
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\u521b\u5efa\u52a8\u6001\u6a21\u5757<\/h3>\n
\u52a8\u6001\u6a21\u5757\u5176\u5b9e\u5c31\u662f\u7ed9\u5f53\u524dModule<\/code>\u7c7b\u63d0\u4f9b\u4e00\u4e2aforRoot<\/code>\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684Module<\/code>\uff0c\u8fd9\u4e2aModule\u7684\u7c7b\u578b\u662f\u4e00\u4e2aDynamicModule\uff0c\u5728\u5176\u4ed6\u6a21\u5757\u9700\u8981\u6ce8\u518c\u4f7f\u7528\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528xxxModule.forRoot(args)<\/code>\u6765\u52a8\u6001\u7684\u6ce8\u518c\u4e0d\u540c\u7684Module\uff0c\u4ee5\u8fbe\u5230\u63d0\u4f9b\u4e0d\u540cproviders\u7684\u76ee\u7684\u3002<\/p>\n
\u8fd9\u91cc\u6211\u4eec\u521b\u5efa\u4e00\u4e2aconfig<\/code>\u7684\u52a8\u6001\u6a21\u5757<\/p>\n
\/\/ config.module.ts\nimport { Module, DynamicModule, Global } from '@nestjs\/common';\nimport { NanjiuService } from 'src\/nanjiu\/nanjiu.service';\nimport { UserService } from 'src\/user\/user.service';\n\ninterface Options {\n    name: string\n}\n@Global()\n@Module({\n})\nexport class ConfigModule {\n    static forRoot(options: Options): DynamicModule {\n        console.log('options', options)\n        return {\n            module: ConfigModule,\n            providers: [\n                {provide: 'config', useClass: options.name === 'nanjiu' ? NanjiuService : UserService},\n            ],\n            exports: [\n                {provide: 'config', useClass: options.name === 'nanjiu' ? NanjiuService : UserService}\n            ]\n        }\n    }\n}<\/code><\/pre>\n
\u8fd9\u4e2a\u4f8b\u5b50\u5f88\u7b80\u5355\uff0c\u9996\u5148\u9700\u8981\u81ea\u5df1\u7f16\u5199\u4e00\u4e2a\u9759\u6001\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u901a\u8fc7\u63a5\u6536\u4f20\u9012\u8fdb\u6765\u7684\u53c2\u6570\u5224\u65ad\u4f7f\u7528\u54ea\u4e00\u4e2aservice<\/code>\uff0c\u5e76\u4e14\u4e3a\u4e86\u65b9\u4fbf\uff0c\u6211\u8fd9\u91cc\u76f4\u63a5\u4f7f\u7528@Global()<\/code>\u88c5\u9970\u5668\u5c06\u8be5\u6a21\u5757\u58f0\u660e\u79f0\u4e86\u5168\u5c40\u6a21\u5757<\/p>\n
\u4f20\u9012\u53c2\u6570\u4f7f\u7528<\/h3>\n
\u8c03\u7528\u9759\u6001\u65b9\u6cd5\u4f20\u9012\u53c2\u6570<\/p>\n
\/\/ app.module.ts\n@Module({\n  imports: [ConfigModule.forRoot({name: 'fe'})],\n  controllers: [AppController],\n  providers: [AppService],\n})\nexport class AppModule {}<\/code><\/pre>\n
\u7136\u540e\u5728controller<\/code>\u4e2d\u4f7f\u7528<\/p>\n
import { Controller, Get, Inject } from '@nestjs\/common';\nimport { AppService } from '.\/app.service';\n\n@Controller()\nexport class AppController {\n  constructor(\n    private readonly appService: AppService, \n    @Inject('config') private readonly configService \/\/ \u6ce8\u5165 ConfigService\n    ) {}\n\n  @Get('\/hello2')\n  get2() {\n    return this.configService.getHello() \/\/ \u8c03\u7528 ConfigService \u7684 getHello \u65b9\u6cd5\n  }\n}<\/code><\/pre>\n
\u6bd4\u5982\u4e0a\u9762forRoot<\/code>\u4f20\u9012\u7684\u53c2\u6570\u662f{name: 'nanjiu'}<\/code>\uff0c\u6240\u4ee5\u6b64\u65f6\u7684ConfigModule<\/code>\u6ce8\u5165\u7684\u5e94\u8be5\u662fUserService<\/code><\/p>\n
\"5-4.png\"<\/p>\n
\u4fee\u6539forRoot<\/code>\u53c2\u6570<\/p>\n
\/\/ app.module.ts\n@Module({\n  imports: [ConfigModule.forRoot({name: 'nanjiu'})],\n  controllers: [AppController],\n  providers: [AppService],\n})\nexport class AppModule {}<\/code><\/pre>\n
\u6b64\u65f6\u901a\u8fc7get<\/code>\u65b9\u5f0f\u518d\u8bbf\u95ee\u540c\u6837\u7684\u8def\u7531\uff0c\u5e94\u8be5\u662f\u8bbf\u95ee\u5230NanjiuService<\/code>\u63d0\u4f9b\u7684\u670d\u52a1\u4e86\u3002<\/p>\n
\"5-5.png\"<\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u52a8\u6001\u6a21\u5757\u7684\u7b80\u5355\u7528\u6cd5\uff0c\u540e\u7eed\u5185\u5bb9\u6211\u4eec\u8fd8\u4f1a\u518d\u9047\u5230\u5b83\uff5e<\/p>\n
https:\/\/segmentfault.com\/a\/1190000044144569<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\u524d\u8a00 \u6a21\u5757\u6307\u7684\u662f\u4f7f\u7528@Module\u88c5\u9970\u5668\u4fee\u9970\u7684\u7c7b\uff0c\u6bcf\u4e2a\u5e94\u7528\u7a0b\u5e8f\u81f3\u5c11\u6709\u4e00\u4e2a\u6a21\u5757\uff0c\u5373\u6839\u6a21\u5757\u3002\u6839\u6a21\u5757\u662fNest\u7528\u4e8e\u6784 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10008157","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10008157","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10008157"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10008157\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10008157"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10008157"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10008157"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}