将json反序列化为pojo，其中json字段具有不同的数据类型

import com.fasterxml.jackson.databind.ObjectMapper;

public class JsonDeserializer {
    public static void main(String[] args) {
        String json = "{\"name\":\"John\",\"age\":30,\"isStudent\":true,\"grades\":[85,90,95]}";

        try {
            ObjectMapper objectMapper = new ObjectMapper();
            Person person = objectMapper.readValue(json, Person.class);
            System.out.println(person);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

class Person {
    private String name;
    private int age;
    private boolean isStudent;
    private int[] grades;

    // getters and setters

    @Override
    public String toString() {
        return "Person{" +
                "name='" + name + '\'' +
                ", age=" + age +
                ", isStudent=" + isStudent +
                ", grades=" + Arrays.toString(grades) +
                '}';
    }
}