{"state":200,"message":"学生添加成功","data":{"id":null,"phone":"18832133971","username":"赵欣怡","identify":"3056"}}帮我写一个java代码来解析上面的字符串

以下是使用Java解析给定字符串的代码示例：

import org.json.JSONObject;

public class JsonParser {
    public static void main(String[] args) {
        String jsonString = "{\"state\":200,\"message\":\"学生添加成功\",\"data\":{\"id\":null,\"phone\":\"18832133971\",\"username\":\"赵欣怡\",\"identify\":\"3056\"}}";
        
        JSONObject jsonObject = new JSONObject(jsonString);
        int state = jsonObject.getInt("state");
        String message = jsonObject.getString("message");
        JSONObject data = jsonObject.getJSONObject("data");
        String phone = data.getString("phone");
        String username = data.getString("username");
        String identify = data.getString("identify");
        
        System.out.println("State: " + state);
        System.out.println("Message: " + message);
        System.out.println("Phone: " + phone);
        System.out.println("Username: " + username);
        System.out.println("Identify: " + identify);
    }
}