如何将我的Angular2模型映射到json web api结果

我创建了一个简单的Angular2应用程序来从外部web api获取电影列表（http://www.omdbapi.com/?s= $ {keyword}）。我在我的应用程序中获得结果，但不是我想要的结果。如何将我的Angular2模型映射到json web api结果

我想将返回的json映射到我的MovieService中的Movie模型。

这是我有：

这个模型看起来像这样（movie.model.ts）：

export class Movie { 
    constructor(
     public Title:string, 
     public Year:string, 
     public imdbID:string, 
     public Type:string, 
     public Poster:string 
    ){ } 
}

movie.service.ts

// movie.service.ts 
import { Injectable } from '@angular/core'; 
import { Movie } from '../models/movie.model'; 
import { Http } from '@angular/http'; 
import 'rxjs/Rx'; 

const makeUrl = (keyword) => `http://www.omdbapi.com/?s=${keyword}`; 

@Injectable() 

export class MovieService { 
    constructor(private http:Http){ 
    } 
     searchMovies(keyword) 
     { 
      return this.http.get(makeUrl (keyword)) 

       //.map(res => <Movie[]> res.json()); 
       .map(res => res.json()) 
       //.map(movies => <Movie[]> movies.Search); 
       .map(movies => movies.Search); 
     } 
}

下面的应用程序。组件：

import { Component } from '@angular/core'; 
import { Movie } from './models/movie.model'; 
import { HTTP_PROVIDERS } from '@angular/http'; 
import {MovieService} from "./services/movie.service"; 

@Component({ 
    selector: 'my-app', 
    templateUrl: 'app/app.component.html', 
    providers : [MovieService, HTTP_PROVIDERS] 

}) 
export class AppComponent { 
    public movies:Movie[] = []; 
    public title:string = "My super movies!"; 

    constructor(private movieService:MovieService) { 

    } 

    searchMovies(keyword) { 
     this.movieService.searchMovies(keyword) 
      .subscribe(movieData => { 
        this.movies = movieData;     // 1. success handler 
       }, 
       err => console.log(err),      // 2. error handler 
       ()=> console.log('Getting movies complete...') // 3. complete handler 
      ) 

    } 
}

Th是我app.component.html

<!-- app.component.html --> 
<div class="row"> 
    <div class="col-md-6"> 
     <h1>Movies via OMDb API</h1> 
     <div> 
      <input type="text" #keyword class="input-lg" placeholder="movie name..."> 
      <button class="btn btn-primary" (click)="searchMovies(keyword.value)">Find movies</button> 
     </div> 
     <table class="table table-striped"> 
      <tr> 
       <th>Naam</th> 
       <th>Jaar</th> 
       <th>Poster</th> 
      </tr> 
      <tr *ngFor="let movie of movies"> 
       <td>{{ movie.Title }}</td> 
       <td><span class="movieYear">{{ movie.Year}}</span></td> 
       <td><img src="{{movie.Poster}}" alt="Movie" class="moviePoster"/></td> 
      </tr> 
     </table> 
    </div> 
</div>

这是main.ts

import { bootstrap } from '@angular/platform-browser-dynamic'; 
import { HTTP_PROVIDERS } from '@angular/http'; 

import { AppComponent } from './app.component'; 

bootstrap(AppComponent, [HTTP_PROVIDERS]);

应用的package.json，systemjs.config.js，tsconfig.json和typings.json都从QuickStart tutorial on Angular.io

来源

2016-07-14 kwv84

你有你的JSON数据传递到您的模式比你得到你得到你的数据在数据模式的形式，你want.Try这个代码

export class Movie { 
    constructor(
     public Title:string, 
     public Year:string, 
     public imdbID:string, 
     public Type:string, 
     public Poster:string 
    ){ 
      this.Title = data.title; 
      this.Year = data.year; 
      this.imdbID = data.imdbID; 
      this.Type = data.Type; 
      this.Poster = data.Poster; 
     } 
} 

    <.......> 
    ..................................... 
    searchMovies(keyword) { 
      this.movieService.searchMovies(keyword) 
       .subscribe(movieData => { 
        for(let i=0; i<movieData.length ; i++){ 
         this.movies.push(new Movie(movieData[i])); 
        } 
         console.log(this.movies); 
        }, 
        err => console.log(err), 
        ()=> console.log('Getting movies complete...') 
       ) 

     }

这将返回您的阵列在您的模式，即电影这里的形式。希望能帮助到你。

来源

2016-07-14 18:37:13

如何将我的Angular2模型映射到json web api结果

回答

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