從Wordpress API反序列化嵌套的JSON標籤和附件JSON響應

我在Android應用中使用Retrofit 2與WordPress API進行通信，但我有問題從帖子獲取附件和標籤。從Wordpress API反序列化嵌套的JSON標籤和附件JSON響應

相應JSON響應看起來像這樣：

{ 

"ID": 1, 
"site_ID": 1, 
"author": { 
}, 
"tags": { 
    "Doom": { 
     "ID": 654, 
     "name": "Doom", 
     "slug": "doom", 
     "description": "", 
     "post_count": 53 
    }, 
    "Ego-Shooter": { 
     "ID": 73, 
     "name": "Ego-Shooter", 
     "slug": "ego-shooter", 
     "description": "", 
     "post_count": 724 
    }, 
    "id Software": { 
     "ID": 127, 
     "name": "id Software", 
     "slug": "id-software", 
     "description": "", 
     "post_count": 41 
    } 
} 
"attachments": { 
    "54344": { 
     "ID": 54344, 
     "URL": "", 
     "guid": "", 
     "mime_type": "image/jpeg", 
     "width": 843, 
     "height": 499 
    }, 
    "54345": { 
     "ID": 54345, 
     "URL": "", 
     "guid": "", 
     "mime_type": "image/jpeg", 
     "width": 800, 
     "height": 1600 
    } 
}

}

Post.class：

public class Post { 

    @SerializedName("ID") 
    private int ID; 

    @SerializedName("title") 
    private String title; 

    @SerializedName("content") 
    private String content; 

    @SerializedName("featured_image") 
    private String featuredImage; 

    @SerializedName("date") 
    private String date; 

    @SerializedName("URL") 
    private String URL; 

    @SerializedName("author") 
    private Author author; 

    @SerializedName("discussion") 
    private Discussion discussion; 

    @SerializedName("attachments") 
    private Attachment attachments; // At this point I have problems 
}

Attachment.class

public class Attachment { 

    @SerializedName("URL") 
    private String URL; 

    @SerializedName("width") 
    private int width; 

    @SerializedName("height") 
    private int height;

}

除附件或標籤中嵌套的JSON對象外，一切正常。附件對象只包含默認值，並且沒有從JSON響應中填充正確的值。

我改造建設者：

Retrofit retrofit = new Retrofit.Builder() 
      .baseUrl(WordPressService.ENDPOINT) 
      .client(okHttpClient) 
      .addConverterFactory(GsonConverterFactory.create()) 
      .addCallAdapterFactory(RxJavaCallAdapterFactory.create()) 
      .build(); 
    return retrofit.create(WordPressService.class);

我想有附着對象的列表，但我不知道我怎麼能解決這個問題。

來源

2016-08-09 Mr.Mojo

顯然是因爲'attachments'不是'Attachment'但附件 – Selvin

的，而關聯數組是沒有附件的陣列，請參閱JSON響應 –

** **聯想來自wiki的數組*在計算機科學中，關聯數組，映射，符號表或字典是由**（鍵，值）對**集合組成的抽象數據類型，以便每個可能的鍵最多出現一次收集。* – Selvin

解析attachments和tagsJSON元素使用LinkedTreeMap。

更新Post類，如下所示：

public class Post { 

    @SerializedName("ID") 
    private int ID; 

    @SerializedName("title") 
    private String title; 

    @SerializedName("content") 
    private String content; 

    @SerializedName("featured_image") 
    private String featuredImage; 

    @SerializedName("date") 
    private String date; 

    @SerializedName("URL") 
    private String URL; 

    @SerializedName("tags") 
    LinkedTreeMap<String, Tag> tags; 

    @SerializedName("attachments") 
    LinkedTreeMap<String, Attachment> attachments; 
}

來源

2016-08-09 18:17:14

從Wordpress API反序列化嵌套的JSON標籤和附件JSON響應

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