Java - Gson解析嵌套在嵌套 [英] Java - Gson parsing nested within nested

问题描述

我必须与一个API进行交互，并且响应格式（从我读过的）看起来结构很差。我发现一个Google群组回复了一个有点类似的问题：这里，但我无法实现一个Response类来处理Gson.fromJson。

I have to interact with an API, and the response format (from what I've read) seems to be poorly structured. I've found a google groups reply to a somewhat similiar problem here, but I'm having trouble implementing a Response class to handle the Gson.fromJson. Is there an example I'm missing that's out there?

{

"response":{
    "reference": 1023, 
    "data":{
        "user":{
            "id":"210",
            "firstName":"john",
            "lastName":"smith",
            "email":"[e-mail]",
            "phone":"",
            "linkedid":{
                "id":"238"
            }
        }
    }
}

}

推荐答案

可以表示JSON对象 {} 通过 Map< String，Object> 或一个Javabean类。这是一个使用Javabean的例子。

The JSON objects {} can be represented by a Map<String, Object> or a Javabean class. Here's an example which uses a Javabean.

public class ResponseData {
    private Response response;
    // +getter+setter

    public static class Response {
        private int reference;
        private Data data;
        // +getters+setters
    }

    public static class Data {
        private User user;
        // +getter+setter
    }

    public static class User {
        private String id;
        private String firstName; 
        private String lastName;
        private String email;
        private String phone;
        private Linkedid linkedid;
        // +getters+setters
    }

    public static class Linkedid {
        private String id;
        // +getter+setter
    }
}

使用它如下：

Use it as follows:

ResponseData responseData = new Gson().fromJson(json, ResponseData.class);

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