注入器=在生产环境中未定义

Question

当我运行服务时，代码工作正常。 在生产环境中，这部分抛出了异常

constructor(@Inject(Injector) injector: Injector, @Inject(AuthService) private authService: AuthService ) {
    this.injector = injector;
  }

我调试了代码，发现未定义注射器和authService。粗略地说，它既不能为AuthService也不能注入Injector类的新实例

我错过了什么吗？

在app.module中，我这样称呼TorkenInterceptor。

@NgModule({
  declarations: [
    AppComponent,
    FullLayoutComponent,
  ],
  imports: [
    BrowserAnimationsModule,
    AppRoutingModule,
    SharedModule,
    NgbModule.forRoot(),
    StoreModule.forRoot(fromRoot.reducer.reducers),
    StoreDevtoolsModule.instrument(),
    EffectsModule.forRoot([])
  ],
  providers: [
    {
      provide: HTTP_INTERCEPTORS,
      useClass: fromShared.services.TokenInterceptorService,
      multi: true,
    },
    AuthService,
    AuthGuard,
    ......
  ],
  bootstrap: [AppComponent]
})
export class AppModule { }

TokenInterceptor类

@Injectable()
export class TokenInterceptorService implements HttpInterceptor {

  // private authService: AuthService;
  injector: Injector
  constructor(@Inject(Injector) injector: Injector, @Inject(AuthService) private authService: AuthService ) {
    this.injector = injector;
  }

  intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    console.log('INTERCETP');
      if (this.getAuthService().isAuthenticated()) {
          request = request.clone({
              setHeaders: {
                  Authorization: 'Bearer ' + this.getAuthService().getToken()
              }
          });
      }
      return next.handle(request);
  }

  getAuthService(): AuthService {
      if (typeof this.authService === 'undefined') {
          this.authService = this.injector.get(AuthService);
      }
      return this.authService;
  }
}

环境：

操作系统： Docker

Angular版本： 7.2.4

NG命令：：运行npm运行ng build---prod --output-path = dist --optimization = false