為每個請求設置角集標頭我需要在用戶登錄后，為每個后續請求設置一些授權頭。若要為特定請求設置標頭，import {Headers} from 'angular2/http';var headers = new Headers();headers.append(headerName, value);// HTTP POST using these headersthis.http.post(url, data, {
headers: headers})// do something with the response參照系但是，以這種方式手動設置每個請求的請求頭是不可行的。如何在用戶登錄后設置標頭，并在注銷時刪除這些標頭？
3 回答
烙印99
TA貢獻1829條經驗 獲得超13個贊
HttpClient@angular/common/http, 角4.3.x版本及以上.
import {
HttpEvent,
HttpInterceptor,
HttpHandler,
HttpRequest,
} from '@angular/common/http';
import { Observable } from 'rxjs';
export class AddHeaderInterceptor implements HttpInterceptor {
intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
// Clone the request to add the new header
const clonedRequest = req.clone({ headers: req.headers.set('Authorization', 'Bearer 123') });
// Pass the cloned request instead of the original request to the next handle
return next.handle(clonedRequest);
}
}const clonedRequest = req.clone({ setHeaders: { Authorization: 'Bearer 123' } });
HTTP_INTERCEPTORS
import { HTTP_INTERCEPTORS } from '@angular/common/http';
@NgModule({
providers: [{
provide: HTTP_INTERCEPTORS,
useClass: AddHeaderInterceptor,
multi: true,
}],
})
export class AppModule {}添加回答
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