升级到Angular6后对老版本的RXJS代码做相应的调整

RXJS5版本

在RXJS5上我们是这样写请求的

import 'rxjs/add/observable/of';

import 'rxjs/add/observable/throw';

import 'rxjs/add/observable/map';

import 'rxjs/add/observable/mergemap';

this.http

    .get<{id: number; userId: number; title: string; body: string}[]>(

        'http://...........'

    )

    .map(data => {

            return ......;

    })

    .catch(error => {

        .....

    })

    .subscrible(...)

RXJS6对应修改为：

import {HttpClient} from '@angular/common/http';

import {Observable, of, throeError} from 'rxjs';

import {map, catchError} from 'rxjs';

this.http

    .get<{id: number; userId: number; title: string; body: string}[]>(

        'http://...........'

    )

    .pipe(

        map(data => {

            return ......;

        }),

        catchError(error => {

            return throwError('.....');

        })

    )

    .subscrible(...)