我有一个关于嵌套JSON对象的问题。在我们的服务器中,路径“ / dev / api / sportstypes / 2”中有一个像这样的对象;
{
"NBA": {
"link": "https://www.nba.com/",
"ticketPrice": 50
},
"UEFA": {
"link": "https://www.uefa.com/",
"ticketPrice": 39
},
"CL": {
"link": "https://www.uefa.com/uefachampionsleague/",
"ticketPrice": 76
},
"EuroLeague": {
"link": "https://www.euroleague.net/",
"ticketPrice": 42
}
}
我相信这是一个嵌套的JSON对象,因为它确实有多个小对象。我的体育课是这样的
export class Sports {
link: string; //THE WEBSITE LINK OF THE SPORTS ASSOCIATION
ticketPrice: number; //THE AVG TICKET PRICE FOR THAT ASSOCIATION
}
我试图在服务中获取这样的JSON对象;
getPrices():Observable<Sports[]> {
return this.http.get<Sports[]>(sportsPath); //sportsPath is the path in our server that goes to the JSON I have given
}
在ts文件中,我尝试使用此功能预订对象;
sportsObject : Sports[] //THIS IS THE MEMBER THAT SHOULD BE FILLED WITH THE JSON OBJECT GIVEN
ngOnInit(){
this.SportsService.getPrices().subscribe(data=>{
this.sportsObject = data;
console.log("Our member contains: " + this.sportsObject);
})
}
但是,正如你们可能猜到的那样,此控制台日志为我提供了这一点;我们的成员包含:[object Object]。那么如何正确获取并订阅该对象?
此外,在我的HTML文件中,它给出了“找不到类型为'object'的不同支持对象'[object Object]'。NgFor仅支持绑定到Iterables,例如数组。”运行此ngFor代码时出错;
<div *ngFor="let member of sportsObject">
<p>The link is:</p>
<p>member.link</p>
</div>
那么,我该如何正确地进行ngFor?
答案 0 :(得分:0)
我相信您订阅正确。记录是一个问题。尝试使用逗号而不是加号
console.log("Our member contains: ", this.sportsObject);