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java根据日期获取当天是周几
阅读量:123 次
发布时间:2019-02-26

本文共 649 字,大约阅读时间需要 2 分钟。

/** * 根据日期获取当天是周几 * @param datetime 日期 * @return 周几 */public static String dateToWeek(String datetime) {    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");    String[] weekDays = {        "星期日", "星期一", "星期二", "星期三",        "星期四", "星期五", "星期六"    };    Calendar cal = Calendar.getInstance();    Date date;    try {        date = sdf.parse(datetime);        cal.setTime(date);    } catch (ParseException e) {        e.printStackTrace();    }    int w = cal.get(Calendar.DAY_OF_WEEK) - 1;    return weekDays[w];}

以上代码实现了将给定日期转换为对应的星期几的功能,适用于日期处理场景。代码结构清晰,使用了常见的日期处理类如SimpleDateFormat和Calendar,通过try-catch处理日期解析异常。返回结果为数组中的星期名称,易于理解和使用。

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