在Angular应用程序中访问JSON数据(多个嵌套数组)

import { HttpClientModule } from '@angular/common/http';

@NgModule({
  imports: [
    HttpClientModule
  ],
  ...
})

import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';

@Injectable({
  providedIn: 'root'
})
export class DataService {
  private url = 'http://example.com/api/data.json'; // 替换为你的JSON数据源URL

  constructor(private http: HttpClient) { }

  getData(): Observable<any> {
    return this.http.get<any>(this.url);
  }
}

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

@Component({
  selector: 'app-my-component',
  template: `
    <div *ngFor="let item of jsonData">
      {{ item.name }}
    </div>
  `
})
export class MyComponent implements OnInit {
  jsonData: any;

  constructor(private dataService: DataService) { }

  ngOnInit() {
    this.dataService.getData().subscribe(data => {
      this.jsonData = data;
    });
  }
}