angular2 resolveAndCreate HTTP - 在RC7中缺少HTTP_PROVIDERS [英] angular2 resolveAndCreate HTTP - missing HTTP_PROVIDERS in RC7

问题描述

HTTP_PROVIDERS存在时，我可以使用

 导出函数createHTTP（url：string，headers ？：标题）{
 let injector = ReflectiveInjector.resolveAndCreate（[
 myHttp，
 {provide：'defaultUrl'，useValue：url}，
 {provide：'defaultHeaders' useValue：headers || new Headers（）}，
 ... HTTP_Providers 
]）
 return injector.get（myHttp）
} 
  

myHttp是Http的包装器

  @Injectable（）
 export class myHttp {
 constructor（@Inject（'defaultUrl）private url：string，@Inject（'defaultHeaders）private headers：Headers，private http：Http）{} 
 
 get（）
 put（）... 
} 
  

现在HTTP_PROVIDERS已被弃用和删除，我该如何提供？

谢谢！

解决方案

  @NgModule（{
 imports：[HttpModule]，
 ... 
}）
 class AppModule {} 
  

或复制定义的 HTTP_PROVIDERS 从Angular2源到您的来源，并像之前一样使用它。

  const HTTP_PROVIDERS = [
 {provide：Http，useFactory：
（xhrBackend：XHRBackend，requestOptions：RequestOptions）：Http => 
 new Http（xhrBackend，requestOptions），
 deps：[XHRBackend，RequestOptions]}，
 BrowserXhr，
 {provide：RequestOptions，useClass：BaseRequestOptions}，
 {提供：ResponseOptions，useClass：BaseResponseOptions}，
 XHRBackend，
 {provide：XSRFStrategy，useFactory：（）=>新的CookieXSRFStrategy（）}，
]; 
  

back in RC4 when HTTP_PROVIDERS existed I could create my custom http instance using

export function createHTTP(url:string, headers?:Headers){
  let injector = ReflectiveInjector.resolveAndCreate([
    myHttp,
    {provide:'defaultUrl', useValue:url},
    {provide:'defaultHeaders', useValue:headers || new Headers()},
    ...HTTP_Providers
  ])
  return injector.get(myHttp)
}

myHttp was a wrapper for Http

@Injectable()
export class myHttp{
  constructor(@Inject('defaultUrl) private url:string, @Inject('defaultHeaders) private headers:Headers, private http:Http){}

  get()
  put()...
}

Now with HTTP_PROVIDERS deprecated and removed, how do I provide it?

Thanks!

解决方案

@NgModule({
  imports: [HttpModule],
  ...
})
class AppModule {}

or copy the definition of HTTP_PROVIDERS from the Angular2 source to your source and use it there like before.

const HTTP_PROVIDERS = [
    {provide: Http, useFactory: 
      (xhrBackend: XHRBackend, requestOptions: RequestOptions): Http =>
          new Http(xhrBackend, requestOptions), 
          deps: [XHRBackend, RequestOptions]},
    BrowserXhr,
    {provide: RequestOptions, useClass: BaseRequestOptions},
    {provide: ResponseOptions, useClass: BaseResponseOptions},
    XHRBackend,
    {provide: XSRFStrategy, useFactory: () => new CookieXSRFStrategy()},
];

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