java获取当前时间的年周月季度等的开始结束时间

来源：互联网发布：java me模拟器编辑：程序博客网时间：2024/06/12 00:34
参考：http://blog.csdn.net/augus3344/article/details/51015704
项目中常常用到，昵称一个月修改一次，活动一周参加一次等等类似的需求，索性把可能用到的所有方法都写出来，放在一个工具类里面。
import java.text.SimpleDateFormat;import java.util.Calendar;import java.util.Date;/** * Created by xiaochun on 2016/3/24. */public class TimeUtil {    public static void main(String[] args) {        System.out.println("当前小时开始："+getCurrentHourStartTime().toString());        System.out.println("当前小时结束："+getCurrentHourEndTime().toString());        System.out.println("当前天开始："+getCurrentDayStartTime().toString());        System.out.println("当前天时结束："+getCurrentDayEndTime().toString());        System.out.println("当前周开始："+getCurrentWeekDayStartTime().toString());        System.out.println("当前周结束："+getCurrentWeekDayEndTime().toString());        System.out.println("当前月开始："+getCurrentMonthStartTime().toString());        System.out.println("当前月结束："+getCurrentMonthEndTime().toString());        System.out.println("当前季度开始："+getCurrentQuarterStartTime().toString());        System.out.println("当前季度结束："+getCurrentQuarterEndTime().toString());        System.out.println("当前半年/后半年开始："+getHalfYearStartTime().toString());        System.out.println("当前半年/后半年结束："+getHalfYearEndTime().toString());        System.out.println("当前年开始："+getCurrentYearStartTime().toString());        System.out.println("当前年结束："+getCurrentYearEndTime().toString());    }    /**     * 获取 当前年、半年、季度、月、日、小时 开始结束时间     */    private final static SimpleDateFormat shortSdf = new SimpleDateFormat("yyyy-MM-dd");    private final static SimpleDateFormat longHourSdf = new SimpleDateFormat("yyyy-MM-dd HH");;    private final static SimpleDateFormat longSdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");;    /**     * 获得本周的第一天，周一     *     * @return     */    public static Date getCurrentWeekDayStartTime() {        Calendar c = Calendar.getInstance();        try {            int weekday = c.get(Calendar.DAY_OF_WEEK) - 2;            c.add(Calendar.DATE, -weekday);            c.setTime(longSdf.parse(shortSdf.format(c.getTime()) + " 00:00:00"));        } catch (Exception e) {            e.printStackTrace();        }        return c.getTime();    }    /**     * 获得本周的最后一天，周日     *     * @return     */    public static Date getCurrentWeekDayEndTime() {        Calendar c = Calendar.getInstance();        try {            int weekday = c.get(Calendar.DAY_OF_WEEK);            c.add(Calendar.DATE, 8 - weekday);            c.setTime(longSdf.parse(shortSdf.format(c.getTime()) + " 23:59:59"));        } catch (Exception e) {            e.printStackTrace();        }        return c.getTime();    }    /**     * 获得本天的开始时间     *     * @return     */    public static Date getCurrentDayStartTime() {        Date now = new Date();        try {            now = shortSdf.parse(shortSdf.format(now));        } catch (Exception e) {            e.printStackTrace();        }        return now;    }    /**     * 获得本天的结束时间     *     * @return     */    public static Date getCurrentDayEndTime() {        Date now = new Date();        try {            now = longSdf.parse(shortSdf.format(now) + " 23:59:59");        } catch (Exception e) {            e.printStackTrace();        }        return now;    }    /**     * 获得本小时的开始时间     *     * @return     */    public static Date getCurrentHourStartTime() {        Date now = new Date();        try {            now = longHourSdf.parse(longHourSdf.format(now));        } catch (Exception e) {            e.printStackTrace();        }        return now;    }    /**     * 获得本小时的结束时间     *     * @return     */    public static Date getCurrentHourEndTime() {        Date now = new Date();        try {            now = longSdf.parse(longHourSdf.format(now) + ":59:59");        } catch (Exception e) {            e.printStackTrace();        }        return now;    }    /**     * 获得本月的开始时间     *     * @return     */    public static Date getCurrentMonthStartTime() {        Calendar c = Calendar.getInstance();        Date now = null;        try {            c.set(Calendar.DATE, 1);            now = shortSdf.parse(shortSdf.format(c.getTime()));        } catch (Exception e) {            e.printStackTrace();        }        return now;    }    /**     * 本月的结束时间     *     * @return     */    public static Date getCurrentMonthEndTime() {        Calendar c = Calendar.getInstance();        Date now = null;        try {            c.set(Calendar.DATE, 1);            c.add(Calendar.MONTH, 1);            c.add(Calendar.DATE, -1);            now = longSdf.parse(shortSdf.format(c.getTime()) + " 23:59:59");        } catch (Exception e) {            e.printStackTrace();        }        return now;    }    /**     * 当前年的开始时间     *     * @return     */    public static Date getCurrentYearStartTime() {        Calendar c = Calendar.getInstance();        Date now = null;        try {            c.set(Calendar.MONTH, 0);            c.set(Calendar.DATE, 1);            now = shortSdf.parse(shortSdf.format(c.getTime()));        } catch (Exception e) {            e.printStackTrace();        }        return now;    }    /**     * 当前年的结束时间     *     * @return     */    public static Date getCurrentYearEndTime() {        Calendar c = Calendar.getInstance();        Date now = null;        try {            c.set(Calendar.MONTH, 11);            c.set(Calendar.DATE, 31);            now = longSdf.parse(shortSdf.format(c.getTime()) + " 23:59:59");        } catch (Exception e) {            e.printStackTrace();        }        return now;    }    /**     * 当前季度的开始时间     *     * @return     */    public static Date getCurrentQuarterStartTime() {        Calendar c = Calendar.getInstance();        int currentMonth = c.get(Calendar.MONTH) + 1;        Date now = null;        try {            if (currentMonth >= 1 && currentMonth <= 3)                c.set(Calendar.MONTH, 0);            else if (currentMonth >= 4 && currentMonth <= 6)                c.set(Calendar.MONTH, 3);            else if (currentMonth >= 7 && currentMonth <= 9)                c.set(Calendar.MONTH, 4);            else if (currentMonth >= 10 && currentMonth <= 12)                c.set(Calendar.MONTH, 9);            c.set(Calendar.DATE, 1);            now = longSdf.parse(shortSdf.format(c.getTime()) + " 00:00:00");        } catch (Exception e) {            e.printStackTrace();        }        return now;    }    /**     * 当前季度的结束时间     *     * @return     */    public static Date getCurrentQuarterEndTime() {        Calendar c = Calendar.getInstance();        int currentMonth = c.get(Calendar.MONTH) + 1;        Date now = null;        try {            if (currentMonth >= 1 && currentMonth <= 3) {                c.set(Calendar.MONTH, 2);                c.set(Calendar.DATE, 31);            } else if (currentMonth >= 4 && currentMonth <= 6) {                c.set(Calendar.MONTH, 5);                c.set(Calendar.DATE, 30);            } else if (currentMonth >= 7 && currentMonth <= 9) {                c.set(Calendar.MONTH, 8);                c.set(Calendar.DATE, 30);            } else if (currentMonth >= 10 && currentMonth <= 12) {                c.set(Calendar.MONTH, 11);                c.set(Calendar.DATE, 31);            }            now = longSdf.parse(shortSdf.format(c.getTime()) + " 23:59:59");        } catch (Exception e) {            e.printStackTrace();        }        return now;    }    /**     * 获取前/后半年的开始时间     *     * @return     */    public static Date getHalfYearStartTime() {        Calendar c = Calendar.getInstance();        int currentMonth = c.get(Calendar.MONTH) + 1;        Date now = null;        try {            if (currentMonth >= 1 && currentMonth <= 6) {                c.set(Calendar.MONTH, 0);            } else if (currentMonth >= 7 && currentMonth <= 12) {                c.set(Calendar.MONTH, 6);            }            c.set(Calendar.DATE, 1);            now = longSdf.parse(shortSdf.format(c.getTime()) + " 00:00:00");        } catch (Exception e) {            e.printStackTrace();        }        return now;    }    /**     * 获取前/后半年的结束时间     *     * @return     */    public static Date getHalfYearEndTime() {        Calendar c = Calendar.getInstance();        int currentMonth = c.get(Calendar.MONTH) + 1;        Date now = null;        try {            if (currentMonth >= 1 && currentMonth <= 6) {                c.set(Calendar.MONTH, 5);                c.set(Calendar.DATE, 30);            } else if (currentMonth >= 7 && currentMonth <= 12) {                c.set(Calendar.MONTH, 11);                c.set(Calendar.DATE, 31);            }            now = longSdf.parse(shortSdf.format(c.getTime()) + " 23:59:59");        } catch (Exception e) {            e.printStackTrace();        }        return now;    }}
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