Question

My Rest服务产生如下响应

{
    "feeds": [
        {
            "id": 672,
            "imagePath": "http://pixyfi.com/uploads/image1.jpg",
            "description": "Off White Cotton Net^The Dress Is Made From Cotton Net. It Is Stretchable And The Material Is Really Good. It Is A Bodycon Dress.",
            "uploader": {
                "id": 459,

            },
            "rejected": false,
            "moderator": {
                "id": 95,
            },
            "moderatedOn": "2016-12-19"
            "imagePaths": [
                "uploads/image1.jpg"
            ]
        },
        {
            "id": 672,
            "imagePath": "http://pixyfi.com/uploads/mage2.jpg",
            "description": "Off White Cotton Net^The Dress Is Made From Cotton Net. It Is Stretchable And The Material Is Really Good. It Is A Bodycon Dress.",
            "uploader": {
                "id": 459,

            },
            "rejected": false,
            "moderator": {
                "id": 95,
            },
            "moderatedOn": "2016-12-19"
            "imagePaths": [
                "uploads/image2.jpg"
            ]
        }
    ]
}

我如何用Gson解析它。在我的Android客户端中，我也有相同的Feed类女巫，这个JSON是生成的注意：我已经将Spring引导用于我的其余API，并且这个JSON是使用ResponseEntity生成的。

Answer 1

首先，确保您拥有有效的JSON。以上情况无效。

如果json对象包含单个元素，则不需要在此之后放置逗号。（在主持人和上传者对象中 id 后面的逗号）。您需要删除它。还需要在 moderatedOn 值之后放置一个逗号。

现在有了一个有效的，你有一个饲料类。为了将您的json 供稿数组映射到您的列表中。您需要执行以下操作。

Gson gson = new Gson();

Type feedsType = new TypeToken<ArrayList<Feed>>(){}.getType();

List<Feed> feedList = gson.fromJson(yourJsonResponseArray, feedsType);

你的班级必须是这样的。饲料类

public class Feed
{
    private String id;
    private String imagePath;
    private Moderator moderator;
    private String description;
    private String rejected;
    private Uploader uploader;
    private String moderatedOn;
    private String[] imagePaths;
    public String getId ()
    {
        return id;
    }
    public void setId (String id)
    {
        this.id = id;
    }
    public String getImagePath ()
    {
        return imagePath;
    }
    public void setImagePath (String imagePath)
    {
        this.imagePath = imagePath;
    }
    public Moderator getModerator ()
    {
        return moderator;
    }
    public void setModerator (Moderator moderator)
    {
        this.moderator = moderator;
    }
    public String getDescription ()
    {
        return description;
    }
    public void setDescription (String description)
    {
        this.description = description;
    }
    public String getRejected ()
    {
        return rejected;
    }
    public void setRejected (String rejected)
    {
        this.rejected = rejected;
    }
    public Uploader getUploader ()
    {
        return uploader;
    }
    public void setUploader (Uploader uploader)
    {
        this.uploader = uploader;
    }
    public String getModeratedOn ()
    {
        return moderatedOn;
    }
    public void setModeratedOn (String moderatedOn)
    {
        this.moderatedOn = moderatedOn;
    }
    public String[] getImagePaths ()
    {
        return imagePaths;
    }
    public void setImagePaths (String[] imagePaths)
    {
        this.imagePaths = imagePaths;
    }
}

主持人类

public class Moderator
{
    private String id;

    public String getId ()
    {
        return id;
    }

    public void setId (String id)
    {
        this.id = id;
    }
}

上传者类

public class Uploader
{
    private String id;

    public String getId ()
    {
        return id;
    }

    public void setId (String id)
    {
        this.id = id;
    }
}

使用Gson解析对象数组

1 个答案: