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Angular 依赖注入

2021-12-07 09:07  qgbo  阅读(37)  评论(0)  编辑  收藏  举报

Angular  依赖注入 和.NetCore 的对比：

 

Angular .Netcore Example
Injector ServiceProvider

  constructor(injector: Injector) {
    this.localization = injector.get(LocalizationService);
    this.permission = injector.get(PermissionCheckerService);
    this.feature = injector.get(FeatureCheckerService);
    this.notify = injector.get(NotifyService);
    this.setting = injector.get(SettingService);
    this.message = injector.get(MessageService);
    this.multiTenancy = injector.get(AbpMultiTenancyService);
    this.appSession = injector.get(AppSessionService);
    this.elementRef = injector.get(ElementRef);
    this.modalHelper = injector.get(ModalHelper);
  }
@Injectable

 自定义标签

类上修饰
@Injectable()
export class  AppSessionService {
  private _user: UserLoginInfoDto;
  private _tenant: TenantLoginInfoDto;
  private _application: ApplicationInfoDto;
。。。
}
@Inject

自定义标签，

参数上修饰
   constructor(@Inject(HttpClient) http: HttpClient, @Optional() @Inject(API_BASE_URL) baseUrl?: string) {
        this.http = http;
        this.baseUrl = baseUrl ? baseUrl : "";
    }