通过服务从 json 文件获取数据在 Angular4 中给出 "unexpected end of input"

Question

我正在尝试从资产文件夹中的 json 文件中获取数据。但反而出现错误。

heroes.service.ts

getPeopleData(): Observable<people[]>{
  return this.http.get<people[]>('assets/data/someData.json');
}

people.interface.ts

export interface people{
    id: number,
    name: string,
    age: number
}

someData.json:

[
    {"id":1, "name": "Jack", "age": 21},
    {"id":2, "name": "Rina", "age": 29},
    {"id":3, "name": "Jonathan", "age": 42}
]

about.component.ts

  peopleData:any;

  ngOnInit() {
    this.getPeople();
  }

  getPeople(): void {
   this.heroesService.getPeopleData()
    .subscribe(data => this.peopleData = data)
  }

错误：

谁能帮帮我，问题出在哪里？相反，控制台中没有错误。

Answer 1

这对我有用：

服务：

public testJson(): Observable<people[]>{
        return this.http.get("https://api.myjson.com/bins/1f5zag").map(res => res.json());
    }

（你可以用那个url实际试试）

component.onInit

this.yourService.testJson()
    .subscribe( evt => {
      const ppl:people[] = evt;
      console.log(ppl);
    });

通过服务从 json 文件获取数据在 Angular4 中给出 "unexpected end of input"

Fetching data from json file via service is giving "unexpected end of input" in Angular4

javascript

observable

angular-services

angular