我有一个使用Angular 7 CLI创建的自定义库。我在库中有一个服务来处理需要将路由器注入其中的身份验证。我将RouterModule添加到了import集合中，然后在我的应用程序（导入了该自定义库）中，使用路由调用RouterModule.forRoot（）。不过，我始终从库内部收到错误"No provider for Router"（从技术上讲这是正确的，因为应该从根应用程序而不是库内部提供路由器）。
这是我图书馆的模块：
import { NgModule } from '@angular/core';
import { HttpClientModule } from '@angular/common/http';
import { CommonModule } from '@angular/common';
import { FormsModule } from '@angular/forms';
import {
MatTableModule, MatSelectModule, MatSortModule, MatRipple, MatSnackBarModule, MatProgressSpinnerModule,
MatButtonModule, MatButtonToggleModule, MatInputModule, MatFormFieldModule, MatRippleModule
} from '@angular/material';
import { RubblWebCommonComponent } from './rubbl-web-common.component';
import { PermissionAnyDirective } from './directives/auth/permission-any.directive';
import { PermissionAllDirective } from './directives/auth/permission-all.directive';
import { UserService } from './services/user/user.service';
import { AuthGuard } from './guards/auth/auth.guard';
import { SearchHighlightPipe } from './azure-search/pipes/search-highlight/search-highlight.pipe';
import { AzureSearchService } from './azure-search/services/azure-search.service';
import { AzureSearchTableComponent } from './azure-search/components/azure-search-table/azure-search-table.component';
import { AuthenticationService } from './services/auth/authentication.service';
import { RouterModule } from '@angular/router';
import { IAuthenticationService } from './services/auth/authentication-service.interface';
import { LogService } from './services/core/log.service';
@NgModule({
declarations: [
RubblWebCommonComponent,
PermissionAnyDirective,
PermissionAllDirective,
SearchHighlightPipe,
AzureSearchTableComponent
],
imports: [
HttpClientModule,
CommonModule,
FormsModule,
RouterModule,
MatButtonModule,
MatButtonToggleModule,
MatFormFieldModule,
MatInputModule,
MatProgressSpinnerModule,
MatRippleModule,
MatSelectModule,
MatSortModule,
MatSnackBarModule,
MatTableModule,
],
exports: [
RubblWebCommonComponent,
PermissionAnyDirective,
PermissionAllDirective,
AzureSearchTableComponent
]
})
export class RubblWebCommonModule {
public static forRoot() {
return {
ngModule: RubblWebCommonModule,
providers: [
UserService,
AuthGuard,
AzureSearchService,
{provide: IAuthenticationService, useClass: AuthenticationService},
LogService
]
};
}
}
我的图书馆的package.json：
{
"name": "rubbl-web-common",
"version": "0.0.1",
"scripts": {
"ng": "ng",
"patch-common": "npm version patch",
"build-common": "ng build rubbl-web-common && npm run build-documentation",
"build-common-watch": "ng build rubbl-web-common --watch && npm run patch-common",
"build-documentation": "npx compodoc -p tsconfig.lib.json --theme material --name \"rubbl-web-common documentation\"",
"create-pull-request": "vsts code pr create --auto-complete",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
"peerDependencies": {
"@angular/animations": "7.2.9",
"@angular/cdk": "7.3.4",
"@angular/common": "7.2.9",
"@angular/compiler": "7.2.9",
"@angular/core": "7.2.9",
"@angular/forms": "7.2.9",
"@angular/material": "7.3.4",
"@angular/platform-browser": "7.2.9",
"@angular/platform-browser-dynamic": "7.2.9",
"@angular/router": "7.2.9",
"applicationinsights-js": "1.0.20",
"core-js": "2.6.5",
"hammerjs": "2.0.8",
"oidc-client": "1.7.0",
"rxjs": "6.4.0",
"tslib": "1.9.3",
"zone.js": "0.8.29"},
"dependencies": {
},
"devDependencies": {
"@angular-devkit/build-angular": "0.13.6",
"@angular-devkit/build-ng-packagr": "0.13.6",
"@angular/cli": "7.3.6",
"@angular/compiler-cli": "7.2.9",
"@angular/language-service": "7.2.9",
"@compodoc/compodoc": "1.1.9",
"@types/jasmine": "3.3.9",
"@types/jasminewd2": "2.0.6",
"@types/node": "11.11.3",
"codelyzer": "5.0.0-beta.1",
"jasmine-core": "3.3.0",
"jasmine-spec-reporter": "4.2.1",
"karma": "4.0.1",
"karma-chrome-launcher": "2.2.0",
"karma-coverage-istanbul-reporter": "2.0.5",
"karma-jasmine": "2.0.1",
"karma-jasmine-html-reporter": "1.4.0",
"ng-packagr": "4.7.1",
"protractor": "5.4.2",
"ts-node": "8.0.3",
"tsickle": ">=0.34.0",
"tslint": "5.14.0",
"typescript": "3.3.3333"
}
}
我的应用程序的AppModule
export function createTranslateLoader(http: HttpClient) {
return new TranslateHttpLoader(http, './assets/i18n/', '.json');
}
@NgModule({
declarations: [
AppComponent,
CatalogListComponent,
CatalogDetailComponent,
AccountListComponent,
AccountDetailComponent,
InventoryDetailComponent,
InventoryListComponent,
AccountCreateComponent,
UserListComponent,
InventoryCreateComponent,
UserCreateComponent,
RoleComponent
],
imports: [
RouterModule.forRoot(routes),
RubblWebCommonModule,
CoreModule,
SharedModule.forRoot(),
PagesModule,
LayoutModule,
TranslateModule.forRoot({
loader: {
provide: TranslateLoader,
useFactory: (createTranslateLoader),
deps: [HttpClient]
}
})
],
exports: [ RouterModule],
providers: [
UserService,
AuthGuard,
AzureSearchService,
{provide: IAuthenticationService, useClass: AuthenticationService},
LogService
],
bootstrap: [AppComponent]
})
export class AppModule { }
和我的应用的angular.json
{
"$schema": "./node_modules/@angular/cli/lib/config/schema.json",
"version": 1,
"newProjectRoot": "projects",
"projects": {
"ng2angle": {
"root": "",
"sourceRoot": "src",
"projectType": "application",
"prefix": "app",
"schematics": {
"@schematics/angular:component": {
"styleext": "scss"
}
},
"architect": {
"build": {
"builder": "@angular-devkit/build-angular:browser",
"options": {
"outputPath": "dist",
"index": "src/index.html",
"main": "src/main.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "src/tsconfig.app.json",
"assets": [
"src/favicon.ico",
"src/assets"
],
"styles": [
"src/app/core/preloader/preloader.scss",
"src/styles.scss"
],
"scripts": [
"node_modules/jquery/dist/jquery.js",
"src/app/core/preloader/preloader.js",
"node_modules/popper.js/dist/umd/popper.js",
"node_modules/chart.js/dist/Chart.bundle.js",
"node_modules/bootstrap/js/dist/util.js",
"node_modules/bootstrap/js/dist/modal.js",
"node_modules/bootstrap/js/dist/dropdown.js",
"node_modules/bootstrap/js/dist/tooltip.js",
"node_modules/moment/min/moment-with-locales.min.js"
]
},
"configurations": {
"production": {
"fileReplacements": [],
"optimization": true,
"outputHashing": "all",
"sourceMap": false,
"extractCss": true,
"namedChunks": false,
"aot": true,
"extractLicenses": true,
"vendorChunk": false,
"buildOptimizer": true,
"budgets": [
{
"type": "initial",
"maximumWarning": "3mb",
"maximumError": "5mb"
}
]
}
}
},
"serve": {
"builder": "@angular-devkit/build-angular:dev-server",
"options": {
"browserTarget": "ng2angle:build"
},
"configurations": {
"production": {
"browserTarget": "ng2angle:build:production"
}
}
},
"extract-i18n": {
"builder": "@angular-devkit/build-angular:extract-i18n",
"options": {
"browserTarget": "ng2angle:build"
}
},
"test": {
"builder": "@angular-devkit/build-angular:karma",
"options": {
"main": "src/test.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "src/tsconfig.spec.json",
"karmaConfig": "src/karma.conf.js",
"styles": [
"src/app/core/preloader/preloader.scss",
"src/styles.scss"
],
"scripts": [
"node_modules/jquery/dist/jquery.js",
"src/app/core/preloader/preloader.js",
"node_modules/popper.js/dist/umd/popper.js",
"node_modules/chart.js/dist/Chart.bundle.js",
"node_modules/bootstrap/js/dist/util.js",
"node_modules/bootstrap/js/dist/modal.js",
"node_modules/bootstrap/js/dist/dropdown.js",
"node_modules/bootstrap/js/dist/tooltip.js",
"node_modules/moment/min/moment-with-locales.min.js"
],
"assets": [
"src/favicon.ico",
"src/assets"
]
}
},
"lint": {
"builder": "@angular-devkit/build-angular:tslint",
"options": {
"tsConfig": [
"src/tsconfig.app.json",
"src/tsconfig.spec.json"
],
"exclude": [
"**/node_modules/**"
]
}
}
}
},
"ng2angle-e2e": {
"root": "e2e/",
"projectType": "application",
"prefix": "",
"architect": {
"e2e": {
"builder": "@angular-devkit/build-angular:protractor",
"options": {
"protractorConfig": "e2e/protractor.conf.js",
"devServerTarget": "ng2angle:serve"
},
"configurations": {
"production": {
"devServerTarget": "ng2angle:serve:production"
}
}
},
"lint": {
"builder": "@angular-devkit/build-angular:tslint",
"options": {
"tsConfig": "e2e/tsconfig.e2e.json",
"exclude": [
"**/node_modules/**"
]
}
}
}
}
},
"defaultProject": "ng2angle"
}
答案 0 :(得分：1)
路由器模块可以多次导入，只要您仅以根（RouterModule.forRoot(routes)）定义一次即可。在单独的文件app-routing.module.ts中定义主路由器并将其导入app.module.ts是一种常见的模式。另外，每个功能模块都可以具有自己的路由器模块，该模块将定义为RouterModule.forChild(childroutes)。最终结果是，只有一个路由器模块实例，其中每个模块都向路由树贡献自己的路由。我认为，就您而言，您可以将您的自定义模块想象为“功能”
some edits/checks to be made (FOR YOUR CODE):
app.module.ts:
- remove the export of the RouterModule
- be sure the routes are ok
library module
- change the import: RouterModule.forChild([]); //or the routes you want