从Wordpress API JSON响应反序列化嵌套的JSON标记和附件

I am using Retrofit 2 in an Android app to communicate with WordPress API but I have problems to get the attachments and tags from posts.

我在Android应用程序中使用Retrofit 2与WordPress API进行通信，但是从帖子中获取附件和标签时遇到问题。

The corresponding JSON response looks like this:

相应的JSON响应如下所示：

{

"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:

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;

}

Everything works fine except the nested JSON objects in attachments or tags. The Attachment object does only contain default values and is not filled with the correct values from the JSON response.

除了附件或标签中的嵌套JSON对象外，一切正常。 Attachment对象仅包含默认值，并且未使用JSON响应中的正确值填充。

My Retrofit builder:

我的改造生成器：

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

I would like to have a list of attachment objects but I do not know how I can solve this problem.

我想有一个附件对象列表，但我不知道如何解决这个问题。

1 个解决方案

#1

To parse the attachments and tags JSON elements use a LinkedTreeMap.

要解析附件和标记，JSON元素使用LinkedTreeMap。

Update the Post class as follows:

更新Post类如下：

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;
}

1 个解决方案

#1

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