安卓與改造2的故障2

Question

我想在android中使用retrofit 2.1，但我只打印了com.example.netapp.Model.PostUpdates@87943a3 7次作爲響應。我究竟做錯了什麼？

的Json

[{ 
"id": "2", 
"categories_id": "2", 
"title": "समाज", 
"featured_news": "0", 
"cover_img": "50D5C03F4C476E718D615DEB3240CCB275E027A2.jpg", 
"meta_desc": "एक चीन नीतिमा प्रतिवद्ध छौं: अर्थमन्त्री महरा", 
"details": "उपप्रधान तथा अर्थमन्त्री कृष्णबहादुर महरासँग नेपालका लागि चीनका नवनियुक्त राजदुत यु होङले आज अर्थमन्त्रालयमा भेटबार्ता गरेकीछन्।", 
"status": "1", 
"postdate": "2016-11-18 16:45:16" 
}, 
...] 

主要活動類別：

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    final TextView textView = (TextView) findViewById(R.id.textView); 


    ApiService api_service = ApiService.retrofit.create(ApiService.class); 
    final Call<List<PostUpdates>> call = api_service.getUpdates("updates"); 

    call.enqueue(new Callback<List<PostUpdates>>() { 
     @Override 
     public void onResponse(Call<List<PostUpdates>> call, Response<List<PostUpdates>> response) { 
      textView.setText(response.body().toString()); 
     } 

     @Override 
     public void onFailure(Call<List<PostUpdates>> call, Throwable t) { 
      textView.setText(t.getMessage().toString()); 
     } 
    }); 


} 

ApiService接口

public interface ApiService{ 

    String ENDPOINT = "http://localhost/test_api/"; 

    @GET("api/{param}") 
    Call<List<PostUpdates>> getUpdates(@Path("param") String param); 


    public final static Retrofit retrofit = new Retrofit.Builder() 
      .baseUrl(ENDPOINT) 
      .addConverterFactory(GsonConverterFactory.create()) 
      .build(); 

} 

個PostUpdates

public class PostUpdates { 

    private String id; 
    private String categoriesId; 
    private String title; 
    private String isFeatured; 
    private String featuredImg; 
    private String metaDesc; 
    private String details; 
    private String status; 
    private String postdate; 
    private Map<String, Object> additionalProperties = new HashMap<String, Object>(); 

    /** 
    * 
    * @return 
    * The id 
    */ 
    public String getId() { 
     return id; 
    } 

    /** 
    * 
    * @param id 
    * The id 
    */ 
    public void setId(String id) { 
     this.id = id; 
    } 

    /** 
    * 
    * @return 
    * The categoriesId 
    */ 
    public String getCategoriesId() { 
     return categoriesId; 
    } 

    /** 
    * 
    * @param categoriesId 
    * The categories_id 
    */ 
    public void setCategoriesId(String categoriesId) { 
     this.categoriesId = categoriesId; 
    } 

    /** 
    * 
    * @return 
    * The title 
    */ 
    public String getTitle() { 
     return title; 
    } 

    /** 
    * 
    * @param title 
    * The title 
    */ 
    public void setTitle(String title) { 
     this.title = title; 
    } 

    /** 
    * 
    * @return 
    * The isFeatured 
    */ 
    public String getIsFeatured() { 
     return isFeatured; 
    } 

    /** 
    * 
    * @param isFeatured 
    * The is_featured 
    */ 
    public void setIsFeatured(String isFeatured) { 
     this.isFeatured = isFeatured; 
    } 

    /** 
    * 
    * @return 
    * The featuredImg 
    */ 
    public String getFeaturedImg() { 
     return featuredImg; 
    } 

    /** 
    * 
    * @param featuredImg 
    * The featured_img 
    */ 
    public void setFeaturedImg(String featuredImg) { 
     this.featuredImg = featuredImg; 
    } 

    /** 
    * 
    * @return 
    * The metaDesc 
    */ 
    public String getMetaDesc() { 
     return metaDesc; 
    } 

    /** 
    * 
    * @param metaDesc 
    * The meta_desc 
    */ 
    public void setMetaDesc(String metaDesc) { 
     this.metaDesc = metaDesc; 
    } 

    /** 
    * 
    * @return 
    * The details 
    */ 
    public String getDetails() { 
     return details; 
    } 

    /** 
    * 
    * @param details 
    * The details 
    */ 
    public void setDetails(String details) { 
     this.details = details; 
    } 

    /** 
    * 
    * @return 
    * The status 
    */ 
    public String getStatus() { 
     return status; 
    } 

    /** 
    * 
    * @param status 
    * The status 
    */ 
    public void setStatus(String status) { 
     this.status = status; 
    } 

    /** 
    * 
    * @return 
    * The postdate 
    */ 
    public String getPostdate() { 
     return postdate; 
    } 

    /** 
    * 
    * @param postdate 
    * The postdate 
    */ 
    public void setPostdate(String postdate) { 
     this.postdate = postdate; 
    } 

    public Map<String, Object> getAdditionalProperties() { 
     return this.additionalProperties; 
    } 

    public void setAdditionalProperty(String name, Object value) { 
     this.additionalProperties.put(name, value); 
    } 

} 

Android應用程序顯示了這個結果 screenshot here

Answer 1

哦！我得到它需要在響應body對象中使用getter方法來獲取相應的數據。謝謝droidev

@Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     final TextView textView = (TextView) findViewById(R.id.textView); 


     ApiService api_service = ApiService.retrofit.create(ApiService.class); 
     final Call<List<PostUpdates>> call = api_service.getUpdates("updates"); 

     call.enqueue(new Callback<List<PostUpdates>>() { 
      @Override 
      public void onResponse(Call<List<PostUpdates>> call, Response<List<PostUpdates>> response) { 

       StringBuffer sb = new StringBuffer(); 
       for(PostUpdates field : response.body()) { 
        sb.append(field.getTitle() + "\n"); 
       } 

       Log.d(TAG, "onResponse: " + sb.toString()); 
       textView.setText(response.body().toString()); 

      } 

      @Override 
      public void onFailure(Call<List<PostUpdates>> call, Throwable t) { 
       textView.setText(t.getMessage().toString()); 
      } 
     }); 


    }