发布网友 发布时间:2022-04-24 03:09
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懂视网 时间:2022-05-16 11:31
package com.gbcom.system.utils; import java.sql.Timestamp; import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; import javax.xml.datatype.DatatypeConfigurationException; import javax.xml.datatype.DatatypeFactory; import javax.xml.datatype.XMLGregorianCalendar; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.gbcom.op.util.Assert; import com.hc.core.utils.XMLGregorianCalendarConversionUtils; /** * 服务端日期处理的类 * */ public class DateUtil { /** * 日志记录器 */ public static final Logger LOG = LoggerFactory.getLogger(DateUtil.class); /** * 给指定的日期增加指定的时间 * * @param date * 日期 * @param field * 如#Calendar.MONTH #Calendar.DAY * @param amount * 数目,如1 加一天 -1减一天 * @return 增加指定时间的日期 */ public static Date add(Date date, int field, int amount) { Calendar calendar = getCalendar(date); calendar.add(field, amount); return calendar.getTime(); } /** * 将传入的日期转换成今天的时间 * * @param date * 传入的日期 * @return 返回今天的时间 */ public static Date getTodayTime(Date date) { Calendar cNow = getCalendar(new Date()); Calendar calendar = getCalendar(date); calendar.set(Calendar.YEAR, cNow.get(Calendar.YEAR)); calendar.set(Calendar.MONTH, cNow.get(Calendar.MONTH)); calendar.set(Calendar.DAY_OF_YEAR, cNow.get(Calendar.DAY_OF_YEAR)); return calendar.getTime(); } /** * 返回指定日期是一周中的第几天 * * @param date * 指定日期 * @return 返回指定日期是一周中的第几天 */ public static int getWeek(Date date) { Calendar calendar = getCalendar(date); return calendar.get(Calendar.DAY_OF_WEEK); } /** * Date转换成Calendar * * @param date * Date * @return Calendar */ public static Calendar getCalendar(Date date) { if (date == null) { return null; } Calendar calendar = Calendar.getInstance(); calendar.setTime(date); return calendar; } /** * 两个日期相减,date1-date2,取得相差几天 * * @param date1 * 日期1 * @param date2 * 日期2 * @return 取得相差几天 */ public static int sub(Date date1, Date date2) { Assert.notNull(date1); Assert.notNull(date2); long tem = date1.getTime() - date2.getTime(); return Integer.parseInt(String.valueOf(tem / (24 * 60 * 60 * 1000))); } /** * 合并时间, * * @param date * 年月日 * @param time * 时分秒 * @return 合并后的日期 */ @SuppressWarnings("deprecation") public static Date mergeDate(Date date, Date time) { Calendar calendar = getCalendar(date); calendar.set(Calendar.MINUTE, time.getMinutes()); calendar.set(Calendar.HOUR_OF_DAY, time.getHours()); return calendar.getTime(); } /** * 用默认风格把时间格式化成<code>yyyy-MM-dd HH:mm:ss</code> 的时间字符串 * * @author zhaishixi 2013-09-18 * @param date * 时间字符串 * @return date */ public static String format(Object date) { if (date != null) { return DateFormat.getDateTimeInstance().format(date); } else { return null; } } /** * 用默认风格把时间格式化成制定格式如<code>( yyyy-MM-dd HH:mm:ss)</code> 的时间字符串 * * @author zhaishixi 2013-09-26 * @param date * 时间字符串 * @param pattern * the pattern describing the date and time format * @return date */ public static String format(Object date, String pattern) { SimpleDateFormat sdf = new SimpleDateFormat(pattern); if (date != null) { return sdf.format(date); } else { return null; } } /** * 用默认风格把date(Object 类型)按指定格式<code>pattern</code>格式化Date类型 * * @author zhaishixi 2013-09-26 * @param date * 时间字符串 * @param pattern the pattern describing the date and * time format * @return date */ public static Date parse(Object date, String pattern) { Date fd = new Date(); if (date == null) { return null; } SimpleDateFormat sdf = new SimpleDateFormat(pattern); try { fd = sdf.parse(date.toString()); } catch (ParseException e) { LOG.error("parse date failed!", e); } return fd; } /** * 用默认风格把date(Object 类型)按指定格式<code>pattern</code>格式化Date类型 * * @param date * 要转换的日期 * @param pattern * 格式 * @return 转换后的日期 */ public static Date parseDate(Object date, String pattern) { Date d = new Date(); if (date == null) { return null; } SimpleDateFormat sdf = new SimpleDateFormat(pattern); String format = sdf.format(date); try { d = sdf.parse(format); } catch (ParseException e) { e.printStackTrace(); } return d; } /** * 计算出离<code>beginDate日期data</code>天的日期. <li>若datas小于0表示当前日期之前data天. <li> * 若datas大于0表当前日期之后data天. * * @author zhaishixi 2013-09-25 * @param beginDate * 要计算的天数 * @param data * 间隔 * @return 得到日期 格式:<code>yyyy-MM-dd HH:mm:ss</code> */ public static Date getDate(Date beginDate, int data) { Calendar beginCal = Calendar.getInstance(); beginCal.setTimeInMillis(beginDate.getTime()); GregorianCalendar calendar = new GregorianCalendar(beginCal .get(Calendar.YEAR), beginCal.get(Calendar.MONTH), beginCal .get(Calendar.DATE), beginCal.get(Calendar.HOUR_OF_DAY), beginCal.get(Calendar.MINUTE), beginCal.get(Calendar.SECOND)); calendar.add(GregorianCalendar.DATE, data); return new Date(calendar.getTimeInMillis()); } /** * 将时间(单位为秒) 转化为 :时 :分 : 秒格式 * * 该time 并非 {@link Date#getTime()} ,单位为秒 * * @param time * long * @return String */ public static String valueOfSecond(long time) { long h = time / 3600; long m = (time % 3600) / 60; long s = (time % 3600) % 60; String value = h + "Basic_hour" + ":" + m + "Basic_min" + ":" + s + "Basic_sec"; return value; } /** * 将时间(单位为分钟) 转化为 :天:时 :分格式 * * 该time 并非 {@link Date#getTime()} ,单位为分钟 * * @param time * long * @return String */ public static String valueOfMinute(long time) { long d = time / (24 * 60); long h = (time % (24 * 60)) / 60; long m = (time % (24 * 60)) % 60; String value = d + "Basic_day" + ":" + h + "Basic_hour" + ":" + m + "Basic_min"; return value; } /** * 返回当前月前n个月或者后n个月的第一天 * * @param num * n个月 isPositive 为true表示前,为false表示后 * @param isPositive * +/- * @return n个月第一天 */ @SuppressWarnings("deprecation") public static Date getFirstDayOfMonth(int num, boolean isPositive) { Date date = new Date(); Calendar calendar = Calendar.getInstance(); int year = calendar.getTime().getYear(); int month = calendar.getTime().getMonth(); if (isPositive) { month = month + num; } else { month = month - num; } int day = 1; if (month < 0) { year = year - 1; month = 11; } else if (month > 12) { year = year + 1; month = 0; } date = new Date(year, month, day); return date; } // ----------------非通用方法,谨慎使用----------------// /** * 时间格式转换--cxf不识别java.sql.Timestamp * * @param orgTime * java.sql.Timestamp * @return XMLGregorianCalendar */ public static XMLGregorianCalendar timeToXmlDate(java.sql.Timestamp orgTime) { if (orgTime != null) { return XMLGregorianCalendarConversionUtils .asXMLGregorianCalendar(new Date(orgTime.getTime())); } return null; } /** * 将xmldate转为timestamp * * @param cal * XMLGregorianCalendar * @return java.sql.Timestamp */ public static java.sql.Timestamp xmlDate2Time(XMLGregorianCalendar cal) { if (cal != null) { return new java.sql.Timestamp(XMLGregorianCalendarConversionUtils .asDate(cal).getTime()); } return null; } /** * 将Date类转换为XMLGregorianCalendar * * @param date * Date * @return XMLGregorianCalendar */ public static XMLGregorianCalendar dateToXmlDate(Date date) { Calendar cal = Calendar.getInstance(); cal.setTime(date); DatatypeFactory dtf = null; try { dtf = DatatypeFactory.newInstance(); } catch (DatatypeConfigurationException e) { } XMLGregorianCalendar dateType = dtf.newXMLGregorianCalendar(); dateType.setYear(cal.get(Calendar.YEAR)); // 由于Calendar.MONTH取值范围为0~11,需要加1 dateType.setMonth(cal.get(Calendar.MONTH) + 1); dateType.setDay(cal.get(Calendar.DAY_OF_MONTH)); dateType.setHour(cal.get(Calendar.HOUR_OF_DAY)); dateType.setMinute(cal.get(Calendar.MINUTE)); dateType.setSecond(cal.get(Calendar.SECOND)); return dateType; } /** * 将XMLGregorianCalendar转换为Date * * @param cal * XMLGregorianCalendar * @return Date */ public static Date xmlDate2Date(XMLGregorianCalendar cal) { return cal.toGregorianCalendar().getTime(); } /** * 获取工作时间:8:30 - 17:30 * * @param date * String * @return String[] * @throws ParseException * ParseException */ public static String[] getWorkDate(String date) throws ParseException { SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd"); Calendar cd = Calendar.getInstance(); cd.setTime(simpleDateFormat.parse(date)); cd.add(Calendar.HOUR, 7); cd.add(Calendar.MINUTE, 30); simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm"); String[] workDate = new String[2]; workDate[0] = simpleDateFormat.format(cd.getTime()); cd.add(Calendar.HOUR, 10); workDate[1] = simpleDateFormat.format(cd.getTime()); return workDate; } /** * 获取当天的开始时间 * * @param date * 指定日期 * @return 当前开始日期 */ public static Date getCurDayStart(Date date) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.set(Calendar.HOUR_OF_DAY, 0); calendar.set(Calendar.MINUTE, 0); calendar.set(Calendar.SECOND, 0); return calendar.getTime(); } /** * 获取本周的开始时间 * * @param date * 指定日期 * @return 本周开始日期 */ public static Date getCurWeekStart(Date date) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.setFirstDayOfWeek(Calendar.MONDAY); calendar.set(Calendar.HOUR_OF_DAY, 0); calendar.set(Calendar.MINUTE, 0); calendar.set(Calendar.SECOND, 0); calendar.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY); return calendar.getTime(); } /** * 获取当月的开始时间 * * @param date * 指定日期 * @return 当月开始日期 */ public static Date getCurMonthStart(Date date) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.set(Calendar.DAY_OF_MONTH, 1); calendar.set(Calendar.HOUR_OF_DAY, 0); calendar.set(Calendar.MINUTE, 0); calendar.set(Calendar.SECOND, 0); return calendar.getTime(); } /** * 获取当年的开始日期 * * @param date * 指定日期 * @return 当年的开始日期 */ public static Date getCurYearStart(Date date) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.set(Calendar.DAY_OF_YEAR, 1); calendar.set(Calendar.HOUR_OF_DAY, 0); calendar.set(Calendar.MINUTE, 0); calendar.set(Calendar.SECOND, 0); return calendar.getTime(); } public static Date longToDate(long lg){ //long ,转 date return new Date(lg); } public static long DateToLong(Date date){ return date.getTime(); } /** * date对象指向的实体却是一个Timestamp,即date拥有Date类的方法,但被覆盖的方法的执行实体在Timestamp中。 * : (DateUtil.tsToDate) * @param ts * @return */ public static Date tsToDate(Timestamp ts){ Date date = new Date(); try { date = ts; } catch (Exception e) { e.printStackTrace(); } return date; } public static Timestamp DateToTs(Date date){ Timestamp ts = new Timestamp(date.getTime()); return ts; } // off checkstyle public static void main(String[] args) { System.out.println(new Date()); System.out.println(new Date(System.currentTimeMillis())); System.out.println(System.currentTimeMillis()); System.out.println(new Date(System.currentTimeMillis()).getTime()); System.out.println(new Date(System.currentTimeMillis()).getTime()); // // // System.out.println(format(parse("20131111235959","yyyyMMddHHmmss"))); // // // LOG.info("DATA="+parse("TTT20131111235959","dsdsdsd")); // long var = 10201; // System.out.println(valueOfMinute(var)); // System.out.println(valueOfSecond(var)); // // // // Timestamp curTime = new Timestamp(System.currentTimeMillis()); // XMLGregorianCalendar calendar = timeToXmlDate(curTime); // // System.out.println("calendar = " + calendar); // // Timestamp timestamp = xmlDate2Time(calendar); // System.out.println("timestamp = " + // DateTimeHelper.formatTimeGBK(timestamp)); DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); String time = df.format(getCurWeekStart(new Date())); System.out.println(time); } }
热心网友 时间:2022-05-16 08:39
java.util.Date 日期类
java.util.Calender 日历类,可做时区转换、偏移量计算
SimpleDateFormat 日期与字符串间转换
热心网友 时间:2022-05-16 09:57
java.util.Date 日期类
java.util.Calender 日历类
SimpleDateFormat 日期与字符串间转换
java方面的日期类其实很简单,多学就会了、、
热心网友 时间:2022-05-16 11:32
date-即将成为过去式,很多过期的方法,不推荐使用,但是老程序员依旧有用的。
calendar ,不是calender-新生代日期类,推荐使用。
热心网友 时间:2022-05-16 13:23
Calendar,Date, SimpleDateFormat
热心网友 时间:2022-05-16 15:31
时间格式化:
SimpleDateFormat sd = new SimpleDateFormat (yyyy-MM-dd);
Data data = new Data();
da.format(data);
热心网友 时间:2022-05-16 17:56
以上都是答案
热心网友 时间:2022-05-16 20:37
DATE