You may catch
您传递给的每个可观察量中的错误forkJoin
:
// Imports that support chaining of operators in older versions of RxJS
import {Observable} from 'rxjs/Observable';
import {forkJoin} from 'rxjs/add/observable/forkJoin';
import {of} from 'rxjs/add/observable/of';
import {map} from 'rxjs/add/operator/map';
import {catch} from 'rxjs/add/operator/catch';
// Code with chaining operators in older versions of RxJS
Observable.forkJoin(
this.http.post<any[]>(URL, jsonBody1, postJson).catch(e => Observable.of('Oops!')),
this.http.post<any[]>(URL, jsonBody2, postJson).catch(e => Observable.of('Oops!'))
)
.subscribe(res => this.handleResponse(res))
另请注意,如果您使用RxJS6,则需要使用catchError
代替catch
, and pipe
运算符而不是链接。
// Imports in RxJS6
import {forkJoin, of} from 'rxjs';
import {map, catchError} from 'rxjs/operators';
// Code with pipeable operators in RxJS6
forkJoin(
this.http.post<any[]>(URL, jsonBody1, postJson).pipe(catchError(e => of('Oops!'))),
this.http.post<any[]>(URL, jsonBody2, postJson).pipe(catchError(e => of('Oops!')))
)
.subscribe(res => this.handleResponse(res))