Java解析Json预期出现双引号问题

{
  "name": "John",
  "age": 30,
  "city": "New York"
}

{
  "text": "He said, \"Hello!\""
}

import com.fasterxml.jackson.databind.ObjectMapper;

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

        ObjectMapper objectMapper = new ObjectMapper();
        try {
            Person person = objectMapper.readValue(jsonString, 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
    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getCity() {
        return city;
    }

    public void setCity(String city) {
        this.city = city;
    }
}