json - 将 header 添加到API Http请求Angular 2，Ionic 2

我有一个ionic 2应用程序(使用Angular 2 Http)，我有从API获取JSON的代码，但是我需要发送app-id，app-key和Accept作为标题，这是主要代码...

import {Component} from '@angular/core';
import {NavController} from 'ionic-angular';
import {Http} from 'angular2/http';

@Component({
templateUrl: 'build/pages/latest-page/latest-page.html'
 })
 export class LatestPage {
 static get parameters() {
 return [[NavController]];
}

constructor(_navController, http) {

this._navControler = _navController;
this.http = http;

this.http.get("https://twit.tv/api/v1.0/people/77").subscribe(data => {
 console.log("Got Data");
 this.items = JSON.parse(data._body).people;
}, error => {
 console.log("Error with Data");
});

 }

这就是我试图添加标题的方式，但是它不起作用...

constructor(_navController, http) {

this._navControler = _navController;
this.http = http;

var headers = new Headers();
headers.append('app-id', '0000');
headers.append('app-key', 'abc000abc');
headers.append('Accept', 'application/json ');

this.http.get("https://twit.tv/api/v1.0/people/77"),{"Headers": headers}.subscribe (data => {
console.log("Got Data");
this.items = JSON.parse(data._body).people;
}, error => {
 console.log("Error with Data");
});

 }

有任何想法吗？

谢谢

最佳答案

header 必须在RequestOptions内设置，这是第二个参数http.get()

此外，您的代码中存在语法错误。请求选项是.get(url，{})的第二个参数，您这样编写:.get(url)，{}

this.http.get("https://twit.tv/api/v1.0/people/77",{"Headers": headers}).subscribe (data => {
console.log("Got Data");
this.items = JSON.parse(data._body).people;
}, error => {
 console.log("Error with Data");
});

创建明确的请求选项。

let opt: RequestOptions
let myHeaders: Headers = new Headers
myHeaders.set('Content-type', 'application/json')
opt = new RequestOptions({
  headers: myHeaders
})

_http.get(url, opt).

经过一番误会，我将在这里留下您自己的代码，并附上我的建议:

constructor(_navController, http) {

/*this isn't necessary, _navController and http are already available for "this. "*/
   this._navControler = _navController;
   this.http = http;

   let opt: RequestOptions
   let myHeaders: Headers = new Headers
   myHeaders.set('app-id', 'c2549df0');
   myHeaders.append('app-key', 'a2d31ce2ecb3c46739b7b0ebb1b45a8b');
   myHeaders.append('Content-type', 'application/json')

   opt = new RequestOptions({
     headers: myHeaders
    })

   this.http.get("https://twit.tv/api/v1.0/people/77",opt).subscribe (data => {
     console.log("Got Data");
     this.items = JSON.parse(data._body).people;

  }, error => {
    console.log("Error with Data");
  });

}

关于json - 将 header 添加到API Http请求Angular 2，Ionic 2，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/37841949/