在Jackson中将Java对象转换为JsonNode

   <groupId>com.fasterxml.jackson.core</groupId>
   <artifactId>jackson-databind</artifactId>
   <version>2.13.0</version>
</dependency>

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;

public class JacksonExample {
    public static void main(String[] args) {
        // 创建一个Java对象
        MyObject myObject = new MyObject("John", 30);

        // 创建一个ObjectMapper实例
        ObjectMapper objectMapper = new ObjectMapper();

        try {
            // 将Java对象转换为JsonNode
            JsonNode jsonNode = objectMapper.valueToTree(myObject);

            // 输出JsonNode
            System.out.println(jsonNode.toString());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    static class MyObject {
        private String name;
        private int age;

        public MyObject(String name, int age) {
            this.name = name;
            this.age = age;
        }

        // 省略getter和setter方法
    }
}