在Angular 6+ HttpInterceptor中更改对错误的成功响应

import { Injectable } from '@angular/core';
import { HttpInterceptor, HttpRequest, HttpHandler, HttpEvent } from '@angular/common/http';
import { Observable, throwError } from 'rxjs';
import { catchError } from 'rxjs/operators';

@Injectable()
export class ErrorInterceptor implements HttpInterceptor {
  intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    return next.handle(request).pipe(
      catchError(error => {
        // 处理错误响应
        if (error.status === 404) {
          // 对404错误进行处理
          // 返回一个新的Observable对象，以便继续传递给下一个拦截器或订阅者
          return throwError('Not Found');
        } else {
          // 其他错误处理
          return throwError('Something went wrong');
        }
      })
    );
  }
}

import { ErrorInterceptor } from './error.interceptor';

@NgModule({
  imports: [
    HttpClientModule
  ],
  providers: [
    {
      provide: HTTP_INTERCEPTORS,
      useClass: ErrorInterceptor,
      multi: true
    }
  ]
})
export class AppModule { }