如何将数据从Json转换为java

import com.fasterxml.jackson.databind.ObjectMapper;

public class JsonToJavaExample {
    public static void main(String[] args) {
        String json = "{\"name\":\"John\", \"age\":30, \"city\":\"New York\"}";

        try {
            ObjectMapper objectMapper = new ObjectMapper();
            Person person = objectMapper.readValue(json, Person.class);

            System.out.println("Name: " + person.getName());
            System.out.println("Age: " + person.getAge());
            System.out.println("City: " + person.getCity());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

class Person {
    private String name;
    private int age;
    private String city;

    // getters and setters

    // 注意：Jackson库需要默认的构造函数
    public Person() {
    }
}