http.get<any>(this.apiUrl); } } 在组件中(component-name.component.ts): 代码语言:typescript 复制 import { Component, OnInit } from '@angular/core'; import { ServiceNameService } from '../service-name.service'; @Componen
export class HeroService { aa= 'abc'; constructor(){ } ngOnInit(){ } } import { HeroService } from'../../../services/hero/hero.service'; export class AComponent implements OnInit{ constructor(private heroService : HeroService) {}//实例化ngOnInit(){ console.log(this.heroService.aa)...
get(this.url); } } Step 4: Use Service to Component Now we have to use this services to our app component. So let's updated code as like bellow: src/app/app.component.ts import { Component, OnInit } from '@angular/core'; import { PostService } from './services/post.service'; ...
import { Injectable } from '@angular/core';import axios from 'axios'@Injectable({providedIn: 'root'})export class AxiosService {constructor() { }AxiosGet(api:any) {return new Promise((resolve, reject)=>{axios.get(api).then((res)=>{resolve(res)})})}AxiosPost(url:string,data:object) ...
TestBed.get方法从根注入器中获取服务。 例如:dataService = testBed.get(DataService); 测试代码 代码语言:javascript 代码运行次数:0 运行 AI代码解释 beforeEach(()=>{// stub UserService for test purposesuserServiceStub={isLoggedIn:true,user:{name:'Test User'}};TestBed.configureTestingModule({declarati...
this.onGetArticles(); }); 完整的页面代码参考 import { Component, OnInit } from '@angular/core'; import { Router, ActivatedRoute ,NavigationEnd} from '@angular/router'; //导入router服务 import { HomeArticleService } from '../../services/home-article.service'; ...
I've created 3 services that will get datas. One service is called "FakeService", because it will provide harcoded data...The other service is called "TestService", which has another service (ApiService) injected in its constructor. The ApiService will use HttpClient to get datas from ...
core`; import { HttpClient } from `@angular/common/http`; import { Observable } from `rxjs`; @Injectable({ providedIn: `root` }) export class DataService { constructor(private http: HttpClient) { } getData(): Observable<any> { return this.http.get(`https://api.example.com/data`); ...
除了在组件中注入服务外,在 Angular 中还可以在服务中注入其他服务,当某个服务依赖于另一个服务时,请遵循与注入组件相同的模式,比如:HeroService 要依靠Logger服务来记录日志。 // src/app/heroes/hero.service.tsimport{Injectable}from'@angular/core';import{HEROES}from'./mock-heroes';import{Logger}...
@Injectable()export class AuthGuard implements CanActivate { constructor(private authService: AuthService) {} canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot) { return this.authService.isAuthenticated(); }}To use this guard, add it to the appropriate param in the route ...