问如何将隐藏的查询参数传递给Angular 5中的路由？

EN

import { Injectable } from '@angular/core';
import { BehaviorSubject } from 'rxjs/BehaviorSubject';

@Injectable()
export class LoadDataService {
  private setdataEmmit = new BehaviorSubject('initial info');
  public getdataEmmit$ = this.setdataEmmit.asObservable();

  constructor() { }

  sendData(data: any) {
    this.setdataEmmit.next(data)
  }
}

import { LoadDataService  } from '.....';

@Component({
  selector: 'app-1',
  templateUrl:'',
  styleUrls: ['']

})
export class Component1 implements OnInit {

  constructor(
    private _loadDataService: LoadDataService
  ) { 
  }
  ngOnInit() {
    this._loadDataService.sendData('info send');  
  }
}

import { LoadDataService  } from '.....';

@Component({
  selector: 'app-2',
  templateUrl:'',
  styleUrls: ['']

})
export class Component2 implements OnInit {

  constructor(
    private _loadDataService: LoadDataService
  ) { 
  }
  ngOnInit() {
    this._loadDataService.getdataEmmit$.subscribe(
      (data) => {
        console.log(data);
        // print: 'info send'
           // YOU ALREADY HAVE THE DATA YOU SENT FROM THE COMPONENT 1
      });
  }
}