对于这种情况，您可以在OnInitEffects效果上实现：

yourAction.ts

export const initEffect = createAction('[ModuleToto] init effect');

yourEffect.ts

@Injectable()
export class YourEffect implements OnInitEffects {
  ngrxOnInitEffects(): Action {
    return initEffect();
  }

  init$ = createEffect(
    () => this.actions$.pipe(
      ofType(initEffect),
      map(action =>
        new featureActions.GetAllMissionRequest({
          projectID: environment.projectId,
          projectContextID: environment.projectId
        })
      )
    )
  );

}

我在https://ngrx.io/guide/effects/lifecycle#oniniteffects上看到了这个

为了使事件派遣你必须登记你的影响：

@NgModule({
  imports: [
    EffectsModule.forRoot([MovieEffects])
  ],
})
export class AppModule {}

https://ngrx.io/guide/effects#registering-root-effects