用java解析json

import com.fasterxml.jackson.databind.ObjectMapper;

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

        try {
            ObjectMapper objectMapper = new ObjectMapper();
            User user = objectMapper.readValue(jsonString, User.class);
            System.out.println("Name: " + user.getName());
            System.out.println("Age: " + user.getAge());
            System.out.println("City: " + user.getCity());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

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

    // Getters and setters
}