java 時(shí)間格式化問題

1、java 時(shí)間格式化問題java.util.*;import java.tt.*;import java.util.calendar; public class vedate /* * 獵取現(xiàn)在時(shí)光 * * return 返回時(shí)光類型 yyyy-mm- hh:mm:ss */ public ic date getnowdate() date currenttime = new date(); simpledatefoat formatter = new simpledateformat("yyyy-mm-dd hh:mm:ss"); sing string = format

2、ter.format(currenttime); parseposition pos = new parseposition(8); date currenttime_2 = formatter.parse(datestring, pos); return currenttime_2; /* * 獵取現(xiàn)在時(shí)光 * * return返回短時(shí)光格式 yyyy-mm-dd */ public static date getnowdateshort() date currenttime = new date(); simpledateformat formatter = new simpledatef

3、ormat("yyyy-mm-dd"); string datestring = formatter.format(currenttime); parseposition pos = new parseposition(8); date currenttime_2 = formatter.parse(datestring, pos); return currenttime_2; /* * 獵取現(xiàn)在時(shí)光 * * return返回字符串格式 yyyy-mm-dd hh:mm:ss */ public static string getstringdate() date curr

4、enttime = new date(); simpledateformat formatter = new simpledateformat("yyyy-mm-dd hh:mm:ss"); string datestring = formatter.format(currenttime); return datestring; /* * 獵取現(xiàn)在時(shí)光 * * return 返回短時(shí)光字符串格式y(tǒng)yyy-mm-dd */ public static string getstringdateshort() date currenttime = new date(); simp

5、ledateformat formatter = new simpledateformat("yyyy-mm-dd"); string datestring = formatter.format(currenttime); return datestring; /* * 獵取時(shí)光 小時(shí):分;秒 hh:mm:ss * * return */ public static string gettimeshort() simpledateformat formatter = new simpledateformat("hh:mm:ss"); date curre

6、nttime = new date(); string datestring = formatter.format(currenttime); return datestring; /* * 將長(zhǎng)時(shí)光格式字符串轉(zhuǎn)換為時(shí)光 yyyy-mm-dd hh:mm:ss * * param strdate * return */ public static date strtodatelong(string strdate) simpledateformat formatter = new simpledateformat("yyyy-mm-dd hh:mm:ss"); parsep

7、osition pos = new parseposition(0); date strtodate = formatter.parse(strdate, pos); return strtodate; /* * 將長(zhǎng)時(shí)光格式時(shí)光轉(zhuǎn)換為字符串 yyyy-mm-dd hh:mm:ss * * param datedate * return */ public static string datetostrlong(java.util.date datedate) simpledateformat formatter = new simpledateformat("yyyy-mm-dd

8、hh:mm:ss"); string datestring = formatter.format(datedate); return datestring; /* * 將短時(shí)光格式時(shí)光轉(zhuǎn)換為字符串 yyyy-mm-dd * * param datedate * param k * return */ public static string datetostr(java.util.date datedate) simpledateformat formatter = new simpledateformat("yyyy-mm-dd"); string datest

9、ring = formatter.format(datedate); return datestring; /* * 將短時(shí)光格式字符串轉(zhuǎn)換為時(shí)光 yyyy-mm-dd * * param strdate * return */ public static date strtodate(string strdate) simpledateformat formatter = new simpledateformat("yyyy-mm-dd"); parseposition pos = new parseposition(0); date strtodate = format

10、ter.parse(strdate, pos); return strtodate; /* * 得到現(xiàn)在時(shí)光 * * return */ public static date getnow() date currenttime = new date(); return currenttime; /* * 提取一個(gè)月中的最后一天 * * param day * return */ public static date getlastdate(long day) date date = new date(); long date_3_hm = date.gettime() - 3600000 *

11、34 * day; date date_3_hm_date = new date(date_3_hm); return date_3_hm_date; /* * 得到現(xiàn)在時(shí)光 * * return 字符串 yyyymmdd hhmmss */ public static string getstringtoday() date currenttime = new date(); simpledateformat formatter = new simpledateformat("yyyymmdd hhmmss"); string datestring = formatter

12、.format(currenttime); return datestring; /* * 得到現(xiàn)在小時(shí) */ public static string gethour() date currenttime = new date(); simpledateformat formatter = new simpledateformat("yyyy-mm-dd hh:mm:ss"); string datestring = formatter.format(currenttime); string hour; hour = datestring.bstring(11, 13);

13、 return hour; /* * 得到現(xiàn)在分鐘 * * return */ public static string gettime() date currenttime = new date(); simpledateformat formatter = new simpledateformat("yyyy-mm-dd hh:mm:ss"); string datestring = formatter.format(currenttime); string min; min = datestring.substring(14, 16); return min; /*

14、* 按照用戶傳入的時(shí)光表示格式，返回當(dāng)前時(shí)光的格式 假如是yyyymmdd，注重字母y不能大寫。 * * param sformat * yyyymmddhhmmss * return */ public static string getuserdate(string sformat) date currenttime = new date(); simpledateformat formatter = new simpledateformat(sformat); string datestring = formatter.format(currenttime); return datestring; /* * 二個(gè)小時(shí)時(shí)光間的差值,必需保證二個(gè)時(shí)光都是"hh:mm"的格式，返回字符型的分鐘 */ public static string gettwohour(string st1, string st2) string kk = null; string jj = null; kk = st1.(":"); jj = st2.split(&