Question

更新的问题：

好吧，调试我注意到这个值只在这里更新：

this._homeService.getClientInfo(this.user.customer_uuid).subscribe(
    (res) => {this._customerService.setCustomer(this.getCustomerFromResponse(res)).subscribe()},
    (err) => {console.error(err)}
);

函数getCustomerFromResponse（response）返回一个客户对象，我也可以在那里做一个新客户或者我想要传递的值。但是在我的旧帖子（后面）的示例中调用函数setCustomer（customer），客户不会被传递给observable的值。为什么呢？

旧帖子：我正在与可观察者一起工作，但我根本不会断言它们。我现在面临这个问题，但我经常遇到问题。我有这项服务：

import {Injectable} from "@angular/core";
import {Customer} from "./customer";
import {Observable} from "rxjs/Rx";
import "rxjs/add/operator/map";
import 'rxjs/add/observable/of';
import 'rxjs/add/operator/do';

@Injectable()
export class CustomerService {
  private customer: Customer;
  private customer$: Observable<Customer>;

  constructor() {
    this.customer = new Customer;
    this.customer$ = Observable.of(this.customer);
  }
  setCustomer(customer: Customer) {
    return this.customer$.do(val => this.customer = val);
  }

  getCustomer() {
    return this.customer;
  }

  getObservable() {
    return this.customer$;
  }

}

我从类app.component调用getObservable（）以便每次更新值：

this._customerService.getObservable().subscribe(
            res => {this.customer = res})

我现在发布每个班级：

clients.component

import { Component, OnInit } from '@angular/core';
import { Router, ActivatedRoute } from '@angular/router';
import { Response } from "@angular/http";
import { User } from '../../model/user';
import { Customer } from '../../model/customer';
import { UserService } from "../../model/user.service";
import { CustomerService } from "../../model/customer.service";
import { ClientsService } from './clients.service';
import { HttpWrapperService } from "../../shared/httpwrapper.service";
import { NotificationsService } from '../../shared/notifications.service';
import { Notification } from '../../shared/notifications.model';

方法：

 customerSelect(customer: Customer) {
    let user = this._userService.getUser();
    user.customer_uuid = customer.uuid;
    this._customerService.setCustomer(customer).subscribe();
    this._userService.setUser(user).subscribe();
    this.router.navigate(['/home']);
  }

login.component

import {Component, Input, OnInit} from '@angular/core';
import { Router, ActivatedRoute } from '@angular/router';
import { Subscription }           from 'rxjs/Subscription';
import { User } from '../../model/user';
import {UserService} from "../../model/user.service";
import { Customer } from '../../model/customer';
import {CustomerService} from "../../model/customer.service";
import {LoginService} from "./login.Service";
import {HttpWrapperService} from "../../shared/httpwrapper.service";
import {AuthService} from "../../shared/auth.service";
import { NotificationsService } from '../../shared/notifications.service';
import { Notification } from '../../shared/notifications.model';

方法：

ngOnInit() {
    this.sub = this.route.params.subscribe(params => {
        if (params['flag'] == 0) {
            let nullcustomer = new Customer();
            nullcustomer.name = "";
            this._customerService.setCustomer(nullcustomer).subscribe();
            this._authService.logout();
        }
    });
}
ngOnDestroy() {
    this.sub.unsubscribe();
}

仅供参考我正在使用angular core 2.0.0稳定版。因为我总是面对可观察的问题，如果有人能为我提供一个很好的链接教程，我只会为angular2的可观察对象提供帮助。我经常搜索，但找不到一个好的。

Answer 1

我找到了解决方案，但我无法理解，如果有人能解释我为什么工作会更好。

首先，我必须得到当前客户，我无法创建新客户并清除所有属性。因此，在这两个地方（家庭和客户），功能将是：

formatCustomer(customerNew: Customer) {
        let customer = this._customerService.getCustomer();
        if (customer == null) {
            customer = new Customer;
        }

        customer.prop1= customerNew.prop1;
        customer.prop2= customerNew.prop2;
        ...
        this._customerService.setCustomer(customer).subscribe();
}

如何更新“Observable.of（object）”的对象数据

1 个答案: