如何使用Jackson将JSON数组更改为JSON元素

import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.databind.ObjectMapper;

import java.util.List;

public class Main {
    public static void main(String[] args) {
        String jsonArray = "[{\"name\":\"John\",\"age\":30},{\"name\":\"Jane\",\"age\":25}]";

        ObjectMapper objectMapper = new ObjectMapper();

        try {
            // 解析JSON数组
            List<Person> personList = objectMapper.readValue(jsonArray, objectMapper.getTypeFactory().constructCollectionType(List.class, Person.class));

            // 处理JSON元素
            for (Person person : personList) {
                System.out.println("Name: " + person.getName());
                System.out.println("Age: " + person.getAge());
            }

            // 转换为JSON元素
            String jsonElement = objectMapper.writeValueAsString(personList.get(0));
            System.out.println("JSON Element: " + jsonElement);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    static class Person {
        @JsonProperty("name")
        private String name;

        @JsonProperty("age")
        private int age;

        // Getters and setters
        // ...
    }
}