Java获取判断是否为周末

import java.time.*;
import java.time.format.DateTimeFormatter;

public class DateTimeExample {
    public static void main(String[] args) {
        // 原始时间字符串
        String timeStr = "2024-04-19T17:34:56.620+0000";
        // 定义时间格式器
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSSZ");

        // 将时间字符串解析为UTC时间
        ZonedDateTime utcTime = ZonedDateTime.parse(timeStr, formatter);

        // 转换时区到GMT+8
        ZonedDateTime gmt8Time = utcTime.withZoneSameInstant(ZoneId.of("GMT+08:00"));

        // 获取转换后的日期
        LocalDate gmt8Date = gmt8Time.toLocalDate();

        // 检查是否是工作日（周一到周五）
        DayOfWeek dayOfWeek = gmt8Date.getDayOfWeek();
        boolean isWorkday = dayOfWeek != DayOfWeek.SATURDAY && dayOfWeek != DayOfWeek.SUNDAY;

        // 输出结果
        System.out.println("UTC Time: " + utcTime);
        System.out.println("GMT+8 Time: " + gmt8Time);
        System.out.println("Is it a workday in GMT+8 timezone? " + isWorkday);
    }
}