儘管rxjs適當進口，財產「地圖」上不存在類型「可觀察<Response>」

Question

我建立使用MEAN堆棧應用角度2.

我知道這個問題已經被問多次在計算器上。我一直在研究這些問題並嘗試不同的建議。對於大多數人來說，導入整個rx/js庫和地圖，或導入：

import { Observable } from 'rxjs/Observable'; 
import 'rxjs/add/operator/map'; 

似乎解決了這個問題。我一直在嘗試不同的這種組合，無濟於事。我在我的服務中不斷收到有關.map所有實例的錯誤。我嘗試更新我的全局打印稿，以及我的打字稿版本正在使用的依賴關係。 'ng serve'後我的終端出現錯誤。我認爲這是一個打字稿問題，但我不確定 - 現在導入的observables無法解決它，這個錯誤有點模糊。

的package.json

{ 
    "name": "aether-news", 
    "version": "0.0.0", 
    "license": "MIT", 
    "scripts": { 
    "ng": "ng", 
    "start": "ng serve", 
    "build": "ng build", 
    "test": "ng test", 
    "lint": "ng lint", 
    "e2e": "ng e2e" 
    }, 
    "private": true, 
    "dependencies": { 
    "@angular/common": "^2.4.0", 
    "@angular/compiler": "^2.4.0", 
    "@angular/core": "^2.4.0", 
    "@angular/forms": "^2.4.0", 
    "@angular/http": "^2.4.0", 
    "@angular/platform-browser": "^2.4.0", 
    "@angular/platform-browser-dynamic": "^2.4.0", 
    "@angular/router": "^3.4.0", 
    "@types/googlemaps": "^3.26.8", 
    "@types/jquery": "^2.0.43", 
    "@types/lodash": "^4.14.62", 
    "@types/underscore": "^1.8.0", 
    "amcharts3-angular2": "github:amcharts/amcharts3-angular2", 
    "angular2-google-maps": "^0.17.0", 
    "core-js": "^2.4.1", 
    "dotenv": "^4.0.0", 
    "jquery": "^3.2.1", 
    "lodash": "^4.17.4", 
    "ng2-google-charts": "^2.1.0", 
    "rxjs": "^5.1.0", 
    "tslint": "^4.4.2", 
    "typescript": "^2.4.2", 
    "underscore": "^1.8.3", 
    "zone.js": "^0.7.6" 
    }, 
    "devDependencies": { 
    "@angular/cli": "1.0.0-rc.0", 
    "@angular/compiler-cli": "^2.4.0", 
    "@types/jasmine": "2.5.38", 
    "@types/node": "~6.0.60", 
    "codelyzer": "~2.0.0", 
    "jasmine-core": "~2.5.2", 
    "jasmine-spec-reporter": "~3.2.0", 
    "karma": "~1.4.1", 
    "karma-chrome-launcher": "~2.0.0", 
    "karma-cli": "~1.0.1", 
    "karma-coverage-istanbul-reporter": "^0.2.0", 
    "karma-jasmine": "~1.1.0", 
    "karma-jasmine-html-reporter": "^0.2.2", 
    "protractor": "~5.1.0", 
    "ts-node": "~2.0.0", 
    "tslint": "~4.4.2", 
    "typescript": "^2.4.2", 
    "upgrade": "^1.1.0" 
    } 
} 

在我的服務

進口

import { Injectable } from '@angular/core'; 
import { Http, Response, Headers, RequestOptions } from '@angular/http'; 
import { Router } from '@angular/router'; 
import { Observable } from 'rxjs/Observable'; 
import 'rxjs/add/operator/map'; 

服務代碼

import { Injectable } from '@angular/core'; 
import { Http, Response, Headers, RequestOptions } from '@angular/http'; 
import { Router } from '@angular/router'; 
import { Observable } from 'rxjs/Observable'; 
import 'rxjs/add/operator/map'; 


@Injectable() 
export class NewsApiService { 

    public bingToken: string; 
    public bbc: any; 
    public bingWorld: any; 
    public bingPolitics: any; 
    public apNews: any; 
    public googleNews: any; 
    public economistNews: any; 
    public nytNews: any; 
    public wapoNews: any; 
    public cnnNews: any; 
    public newsweekNews: any; 
    public reutersNews: any; 
    public guardianUkNews: any; 
    public guardianAuNews: any; 
    public huffPostNews: any; 
    public wsjNews: any; 

    public eventRegistryBBC: any; 
    public eventRegistryGuardian: any; 
    public eventRegistryCNN: any; 
    public eventRegistryWAPO: any; 
    public eventRegistryReuters: any; 
    public eventRegistryNYT: any; 
    public eventRegistryEconomist: any; 
    public eventRegistryAP: any; 
    public eventRegistryWSJ: any; 
    public eventRegistryNewswire: any; 

    constructor(
    private http: Http, 
    private router: Router 
) {} 


//EVENT REGISTRY 
//BBC 
getEventRegistryBBC(){ 
    return this.http.get("http://eventregistry.org/json/article?sourceUri=bbc.co.uk&sourceUri=bbc.com&categoryUri=dmoz%2FSociety%2FPolitics&action=getArticles&articlesSortBy=date&resultType=articles&articlesCount=200&articlesIncludeArticleDuplicateList=true&articlesIncludeArticleCategories=true&articlesIncludeConceptImage=true&articlesIncludeConceptDescription=true&articlesIncludeConceptDetails=true&articlesIncludeConceptTrendingScore=true&articlesIncludeSourceDescription=true&articlesIncludeArticleImage=true&articlesIncludeSourceDetails=true") 
    .map((res) => { 
     this.eventRegistryBBC = res.json() 
     return res.json().articles.results; 
    }) 
} 

很好奇的人是否都面臨着同樣的問題，即使有rxjs適當進口。感謝你的協助。

Answer 1

在我的所有服務中，他們都是鍵入的（請參閱Observable），他們沒有多個返回 - 我不知道如何/如果這將工作。

我的服務返回this.http.get - etc - 並用response.json（）映射響應。

在我的組件中，我訂閱Observable並執行任何進一步的數據操作來提取特定數據。

也許嘗試這樣？

getEventRegistryBBC(): Observable<Response>{ 
    return this.http.get("http://eventregistry.org/json/article?sourceUri=bbc.co.uk&sourceUri=bbc.com&categoryUri=dmoz%2FSociety%2FPolitics&action=getArticles&articlesSortBy=date&resultType=articles&articlesCount=200&articlesIncludeArticleDuplicateList=true&articlesIncludeArticleCategories=true&articlesIncludeConceptImage=true&articlesIncludeConceptDescription=true&articlesIncludeConceptDetails=true&articlesIncludeConceptTrendingScore=true&articlesIncludeSourceDescription=true&articlesIncludeArticleImage=true&articlesIncludeSourceDetails=true") 
    .map(response => response.json()) 
}