org.apache.commons.lang.time.DateUtils(常用的一些函数）

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发表于 2014-08-23 00:01:37

static java.util.Date addDays(java.util.Date date,int amount)  //Adds a number of days to a date returning a new object.//一个日期对象＋n天static java.util.Date addHours(java.util.Date date,int amount)　　 //Adds a number of hours to a date returning a new object.//一个日期对象＋n小时static java.util.Date addMilliseconds(java.util.Date date,int amount)  //Adds a number of milliseconds to a date returning a new object.//一个日期对象+n毫秒static java.util.Date addMinutes(java.util.Date date,int amount)  //Adds a number of minutes to a date returning a new object.//一个日期对象+n分static java.util.Date addMonths(java.util.Date date,int amount)  //Adds a number of months to a date returning a new object.//一个日期对象＋n月static java.util.Date addSeconds(java.util.Date date,int amount)　　 //Adds a number of seconds to a date returning a new object.　　 //一个日期对象＋n秒static java.util.Date addWeeks(java.util.Date date,int amount)  //Adds a number of weeks to a date returning a new object.//一个日期对象＋N个星期static java.util.Date addYears(java.util.Date date,int amount)  //Adds a number of years to a date returning a new object.//一个日期对象＋N年static boolean isSameDay(java.util.Date date1,java.util.Date date2)  //Checks if two date objects are on the same day ignoring time.//两个日期对象是否相等（只比较年－月－日）static boolean isSameInstant(java.util.Date date1,java.util.Date date2)  //Checks if two date objects represent the same instant in time.//比较两个日期是否完全相等（精确到毫秒）static java.util.Date parseDate(java.lang.String str,java.lang.String[] parsePatterns) //Parses a string representing a date by trying a variety of different parsers. //例 ： String[] format={"yyyy-MM-dd"};System.out.println(DateUtils.parseDate("2009-10-20",format));

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