package cn.edu.hactcm.cfcms.utils;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
/**

?* CFMS??? ：Computer files management system?
?* version ：1.0 2013-2-20 下午12:30:23
?*/
public final class DateFormatUtils {
?/**
? * @return 返回的日期格式類似：2012年12月10日 星期一<br/>
? * <br/>
? * <b>Letter? Date or Time Component? Presentation? Examples</b>? <br/>
? * G? Era designator? Text? AD? <br/>
???? * y? Year? Year? 1996; 96? <br/>
???? * M? Month in year? Month? July; Jul; 07? <br/>
???? * w? Week in year? Number? 27? <br/>
???? * W? Week in month? Number? 2? <br/>
???? * D? Day in year? Number? 189? <br/>
???? * d? Day in month? Number? 10? <br/>
???? * F? Day of week in month? Number? 2? <br/>
???? * E? Day in week? Text? Tuesday; Tue? <br/>
???? * a? Am/pm marker? Text? PM? <br/>
???? * H? Hour in day (0-23)? Number? 0? <br/>
???? * k? Hour in day (1-24)? Number? 24? <br/>
???? * K? Hour in am/pm (0-11)? Number? 0? <br/>
???? * h? Hour in am/pm (1-12)? Number? 12? <br/>
???? * m? Minute in hour? Number? 30? <br/>
???? * s? Second in minute? Number? 55? <br/>
???? * S? Millisecond? Number? 978? <br/>
???? * z? Time zone? General time zone? Pacific Standard Time; PST; GMT-08:00? <br/>
???? * Z? Time zone? RFC 822 time zone? -0800 <br/>
???? * <br/>
???? * <b>Date and Time Pattern? Result</b>? <br/>
???? * "yyyy.MM.dd G 'at' HH:mm:ss z"? 2001.07.04 AD at 12:08:56 PDT <br/>
???? * "EEE, MMM d, ''yy"? Wed, Jul 4, '01? <br/>
???? * "h:mm a"? 12:08 PM? <br/>
???? * "hh 'o''clock' a, zzzz"? 12 o'clock PM, Pacific Daylight Time? <br/>
???? * "K:mm a, z"? 0:08 PM, PDT? <br/>
???? * "yyyyy.MMMMM.dd GGG hh:mm aaa"? 02001.July.04 AD 12:08 PM? <br/>
???? * "EEE, d MMM yyyy HH:mm:ss Z"? Wed, 4 Jul 2001 12:08:56 -0700? <br/>
???? * "yyMMddHHmmssZ"? 010704120856-0700? <br/>
???? * "yyyy-MM-dd'T'HH:mm:ss.SSSZ"? 2001-07-04T12:08:56.235-0700? <br/>
???? * <br/>
? */
?public String getDateFormatyyyyMMddE(){??
??SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy年MM月dd日 E");
??String formatyyyyMMddEE = simpleDateFormat.format(new Date());
??return formatyyyyMMddEE;
?}
?
?/**
? * @return 返回的日期格式類似：2012-12-10 13:44:03
? */
?public String getDateFormatyyyyMMddHHmmss(){??
??SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
??String formatyyyyMMddHHmmss = simpleDateFormat.format(new Date());
??return formatyyyyMMddHHmmss;
?}
?
?/**
? * @return 返回的日期格式類似：2012-12-10 13:44:03
? */
?public Date getDateFormatyyyyMMddHHmmss2(){?
??String formatyyyyMMddHHmmss = null;
??SimpleDateFormat simpleDateFormat = null;
??Date date = null;
??try {
???simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
???formatyyyyMMddHHmmss = simpleDateFormat.format(new Date());
???date = simpleDateFormat.parse(formatyyyyMMddHHmmss);
??} catch (Exception e) {
???e.printStackTrace();
??}
??return date;
?}
?
?/**
? * @return 返回的日期格式類似：2012年12月10日 13時50分50秒
? */
?public String getDateFormatOverrideyyyyMMddHHmmss(){
??SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy年MM月dd日 HH時mm分ss秒");
??return simpleDateFormat.format(new Date());
?}
?
?/**
? * @param date:這是要格式化的日期
? * @return 返回的日期格式類似：2012-12-10
? */
?public String getDateFormatyyyyMMdd(Date date){
??SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");
??return simpleDateFormat.format(date);
?}
?
?/**
? * @param milliseconds:傳入的毫秒值
? * @return 返回一個按照想要格式轉換后的字符串。
? */
?public String getDateFormatyyyyMMddHHmmssFromMilliseconds(Long milliseconds){
??SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
??String dateTime = df.format(milliseconds);
??return dateTime;
?}
?
?/**
? * 如果字符串是否和條件的那么就返回毫秒值
? * @param timeString
? * @return
? */
?@SuppressWarnings("null")
?public long getMillisecondsByTimeString(String timeString){
??if (timeString != null || timeString.trim() != null) {
???SimpleDateFormat sf = new SimpleDateFormat("yyyy年MM月dd日");
???Date d = null;
???try {
????d = sf.parse(timeString);
???} catch (ParseException e) {
????e.printStackTrace();
???}
???return d.getTime();
??}
??return -1;
?}
}

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