循环依赖注入角度2

我一直在为注射而苦苦挣扎services进入彼此。以下博客构造函数中的循环依赖和依赖注入 http://misko.hevery.com/2008/08/01/circular-dependency-in-constructors-and-dependency-injection/它说的有点令人困惑

两个对象之一隐藏了另一个对象 C

将 Service 类相互注入时出现以下错误

无法解析 PayrollService 的所有参数：（SiteService、StorageService、 甜蜜警报服务，？）

//abstractmodal.service.ts
@Injectable()
 export abstract class AbstractModel {

   abstract collection = [];

   constructor(private siteService: SiteService, private storageService: StorageService,
                private sweetalertService: SweetAlertService) {}


   setCollectionEmpty() {
      this.collection = [];
    }
}
//account-payable.service.ts
@Injectable()
export class AccountPayableService extends AbstractModel {

   public collection = [];

   constructor(private sS: SiteService,private stS: StorageService, private sws: SweetAlertService,
            private accpPoService: PayablePurchaseOrderService, private attachmentService: AttachmentService,
            private injectorService: InjectorService) { 
         super(sS, stS, sws);
     }
}
//injector.service.ts
@Injectable()
export class InjectorService {
   constructor(private payrollService: PayrollService) {}

   cleanPayrollCollection() {
     this.payrollService.setCollectionEmpty();
   }
}
//payroll.service.ts
@Injectable()
export class PayrollService extends AbstractModel {

   public collection = [];

   constructor(private sS: SiteService,private stS: StorageService, private sws: SweetAlertService,
            private accpService: AccountPayableService) { 
    super(sS, stS, sws);
   }
}

您的评论和回答将非常感激。

Thanks

您可以通过注入来解决循环依赖问题Injector而不是导致循环依赖的服务之一

private payrollService:PayrollService;
constructor(/*private payrollService:PayrollService*/ injector:Injector) {
  setTimeout(() => this.payrollService = injector.get(PayrollService));
}