使用Jackson将具有int属性的对象数组反序列化为int数组

public class ObjectWithIntProperty {
    private int intValue;

    public int getIntValue() {
        return intValue;
    }

    public void setIntValue(int intValue) {
        this.intValue = intValue;
    }
}

import com.fasterxml.jackson.databind.ObjectMapper;

public class Main {
    public static void main(String[] args) {
        String json = "[{\"intValue\": 1}, {\"intValue\": 2}, {\"intValue\": 3}]";

        ObjectMapper objectMapper = new ObjectMapper();

        try {
            ObjectWithIntProperty[] objects = objectMapper.readValue(json, ObjectWithIntProperty[].class);

            int[] intArray = new int[objects.length];
            for (int i = 0; i < objects.length; i++) {
                intArray[i] = objects[i].getIntValue();
            }

            // 打印结果
            for (int i : intArray) {
                System.out.println(i);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}