Angular 2在不相关组件之间发送对象

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

@Injectable()
export class DataService {
  private sharedObject: any;

  setSharedObject(obj: any) {
    this.sharedObject = obj;
  }

  getSharedObject() {
    return this.sharedObject;
  }
}

import { Component } from '@angular/core';
import { DataService } from './data.service';

@Component({
  selector: 'sender-component',
  template: `
    <button (click)="sendObject()">Send Object</button>
  `
})
export class SenderComponent {
  constructor(private dataService: DataService) {}

  sendObject() {
    const obj = { name: 'John', age: 25 };
    this.dataService.setSharedObject(obj);
  }
}

import { Component } from '@angular/core';
import { DataService } from './data.service';

@Component({
  selector: 'receiver-component',
  template: `
    <div>{{ sharedObject | json }}</div>
  `
})
export class ReceiverComponent {
  sharedObject: any;

  constructor(private dataService: DataService) {
    this.sharedObject = this.dataService.getSharedObject();
  }
}