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 返回的日期格式类似：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 返回的日期格式类似：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 返回的日期格式类似：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 返回的日期格式类似：2012年12月10日 13时50分50秒
*/
public String getDateFormatOverrideyyyyMMddHHmmss(){
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy年MM月dd日 HH时mm分ss秒");
return simpleDateFormat.format(new Date());
}
/**
* @param date:这是要格式化的日期
* @return 返回的日期格式类似：2012-12-10
*/
public String getDateFormatyyyyMMdd(Date date){
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");
return simpleDateFormat.format(date);
}
/**
* @param milliseconds:传入的毫秒值
* @return 返回一个按照想要格式转换后的字符串。
*/
public String getDateFormatyyyyMMddHHmmssFromMilliseconds(Long milliseconds){
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String dateTime = df.format(milliseconds);
return dateTime;
}
/**
* 如果字符串是否和条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;
}
}
