如何将多个JSON响应映射到单个Java POJO？

{
  "user": {
    "id": 1,
    "name": "John Doe"
  },
  "orders": [
    {
      "id": 101,
      "product": "Laptop",
      "quantity": 1
    },
    {
      "id": 102,
      "product": "Smartphone",
      "quantity": 2
    }
  ]
}

import com.fasterxml.jackson.annotation.JsonProperty;
import java.util.List;

public class UserProfile {
    private User user;
    private List<Order> orders;

    // Getters and Setters

    public static class User {
        private int id;
        private String name;

        // Getters and Setters
    }

    public static class Order {
        private int id;
        private String product;
        private int quantity;

        // Getters and Setters
    }
}

import com.fasterxml.jackson.databind.ObjectMapper;

public class JsonToPojoExample {
    public static void main(String[] args) {
        String json = "{ \"user\": { \"id\": 1, \"name\": \"John Doe\" }, \"orders\": [ { \"id\": 101, \"product\": \"Laptop\", \"quantity\": 1 }, { \"id\": 102, \"product\": \"Smartphone\", \"quantity\": 2 } ] }";

        ObjectMapper objectMapper = new ObjectMapper();
        try {
            UserProfile userProfile = objectMapper.readValue(json, UserProfile.class);
            System.out.println(userProfile.getUser().getName());
            for (UserProfile.Order order : userProfile.getOrders()) {
                System.out.println(order.getProduct() + " - " + order.getQuantity());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

@JsonProperty("user_id")
private int userId;