Angular 5（Ionic）JSONP请求
我想连接到http://api.themoviedb.org以执行GET请求。 由于我使用浏览器（离子服务-l），我得到CORS错误。 为了避免CORS错误，我尝试使用JSONP而没有成功。
这是我所做的：
在app.module.ts中 ：
从'@ angular / common / http'导入{HttpClientModule，HttpClientJsonpModule};
...
导入：[BrowserModule，IonicModule.forRoot（MyApp） ，HttpClientModule，HttpClientJsonpModule ]，
...
在组件的.ts文件中：
从'rxjs / Observable'导入{Observable};
从'@ angular / common / http'导入{HttpClient};
...
//在课堂里
电影：Observable <any>;
构造函数（public navCtrl：NavController，public navParams：NavParams，public http：HttpClient）
{
const url =“https://api.themoviedb.org/3/movie/550?api_key= [MY_API_KEY]＆callback = JSONP_CALLBACK”;
this.films = this.http.jsonp（url，'callback'）;
}
...
在组件的.html中：
<ion-content padding>
<ion-list>
<button ion-item>
{{(films | async)?.title}}
</button>
</ion-list>
</ion-content>
我收到一个错误，告诉它无法解析响应：
这里是错误（[MY_API_KEY]是错误代码中的实际API_KEY）：
Uncaught TypeError: ["ng_jsonp_callback_0","JSONP_CALLBACK"] is not a function
at 550?api_key=[MY_API_KEY]&callback=ng_jsonp_callback_0&callback=JSONP_CALLBACK:1
(anonymous) @ 550?api_key=[MY_API_KEY]&callback=ng_jsonp_callback_0&callback=JSONP_CALLBACK:1
core.js:1350 ERROR HttpErrorResponse {headers: HttpHeaders, status: 0, statusText: "JSONP Error", url: "https://api.themoviedb.org/3/movie/550?api_key=303…lback=ng_jsonp_callback_0&callback=JSONP_CALLBACK", ok: false, …}
这里是收到的回应：
["ng_jsonp_callback_0", "JSONP_CALLBACK"]({"adult":false,"backdrop_path":"/87hTDiay2N2qWyX4Ds7ybXi9h8I.jpg","belongs_to_collection":null,"budget":63000000,"genres":[{"id":18,"name":"Drama"}],"homepage":"http://www.foxmovies.com/movies/fight-club","id":550,"imdb_id":"tt0137523","original_language":"en","original_title":"Fight Club","overview":"A ticking-time-bomb insomniac and a slippery soap salesman channel primal male aggression into a shocking new form of therapy. Their concept catches on, with underground "fight clubs" forming in every town, until an eccentric gets in the way and ignites an out-of-control spiral toward oblivion.","popularity":61.167619,"poster_path":"/adw6Lq9FiC9zjYEpOqfq03ituwp.jpg","production_companies":[{"name":"Twentieth Century Fox Film Corporation","id":306},{"name":"Regency Enterprises","id":508},{"name":"Fox 2000 Pictures","id":711},{"name":"Taurus Film","id":20555},{"name":"Linson Films","id":54050},{"name":"Atman Entertainment","id":54051},{"name":"Knickerbocker Films","id":54052}],"production_countries":[{"iso_3166_1":"DE","name":"Germany"},{"iso_3166_1":"US","name":"United States of America"}],"release_date":"1999-10-15","revenue":100853753,"runtime":139,"spoken_languages":[{"iso_639_1":"en","name":"English"}],"status":"Released","tagline":"Mischief. Mayhem. Soap.","title":"Fight Club","video":false,"vote_average":8.300000000000001,"vote_count":11124})
据我所知，它应该返回一个javascript函数的名字来处理数据。 但我似乎在通过回调方式时出现了问题，并且无法找到有关如何使用新HttpClient执行此操作的示例。
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