使用java从json中拆分时间值

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;

import java.io.IOException;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

public class JsonTimeSplitter {
    public static void main(String[] args) {
        String json = "{\"timestamp\":\"2022-02-22T10:30:00Z\"}";

        try {
            // 解析JSON字符串为JsonNode对象
            ObjectMapper mapper = new ObjectMapper();
            JsonNode jsonNode = mapper.readTree(json);

            // 获取时间值
            String timeValue = jsonNode.get("timestamp").asText();

            // 解析时间值为日期时间对象
            LocalDateTime dateTime = LocalDateTime.parse(timeValue, DateTimeFormatter.ISO_DATE_TIME);

            // 获取时间部分
            int year = dateTime.getYear();
            int month = dateTime.getMonthValue();
            int day = dateTime.getDayOfMonth();
            int hour = dateTime.getHour();
            int minute = dateTime.getMinute();
            int second = dateTime.getSecond();

            // 打印结果
            System.out.println("年：" + year);
            System.out.println("月：" + month);
            System.out.println("日：" + day);
            System.out.println("时：" + hour);
            System.out.println("分：" + minute);
            System.out.println("秒：" + second);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}