今天長(zhǎng)沙中公優(yōu)就業(yè)java學(xué)院小編為大家分享“java時(shí)間日期格式轉(zhuǎn)換”，希望通過此文能夠幫助到正在學(xué)習(xí)java編程的小伙伴們，下面就隨小編一起來看看。
1.1 返回時(shí)間類型 yyyy-MM-dd HH:mm:ss
public static Date getNowDate() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String dateString = formatter.format(currentTime);
ParsePosition pos = new ParsePosition(8);
Date currentTime_2 = formatter.parse(dateString, pos);
return currentTime_2;
}
1.2 返回短時(shí)間格式 yyyy-MM-dd
DateFormat format1 = new SimpleDateFormat("yyyy-MM-dd");
DateFormat format 2= new SimpleDateFormat("yyyy年MM月dd日 HH時(shí)mm分ss秒");
Date date = null;
String str = null;
// String轉(zhuǎn)Date
str = "2007-1-18";
try {
date = format1.parse(str);
data = format2.parse(str);
} catch (ParseException e) {
e.printStackTrace();
}
1.3 返回字符串格式 yyyy-MM-dd HH:mm:ss
public static String getStringDate() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String dateString = formatter.format(currentTime);
return dateString;
}
1.4 返回短時(shí)間字符串格式y(tǒng)yyy-MM-dd
public static String getStringDateShort() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
String dateString = formatter.format(currentTime);
return dateString;
}
1.5 獲取時(shí)間 小時(shí):分;秒 HH:mm:ss
public static String getTimeShort() {
SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss");
Date currentTime = new Date();
String dateString = formatter.format(currentTime);
return dateString;
}
1.6 將長(zhǎng)時(shí)間格式字符串轉(zhuǎn)換為時(shí)間 yyyy-MM-dd HH:mm:ss
public static Date strToDateLong(String strDate) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
ParsePosition pos = new ParsePosition(0);
Date strtodate = formatter.parse(strDate, pos);
return strtodate;
}
1.7 將長(zhǎng)時(shí)間格式時(shí)間轉(zhuǎn)換為字符串 yyyy-MM-dd HH:mm:ss
public static String dateToStrLong(java.util.Date dateDate) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String dateString = formatter.format(dateDate);
return dateString;
}
1.8 將短時(shí)間格式時(shí)間轉(zhuǎn)換為字符串 yyyy-MM-dd
public static String dateToStr(java.util.Date dateDate) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
String dateString = formatter.format(dateDate);
return dateString;
}
1.9 將短時(shí)間格式字符串轉(zhuǎn)換為時(shí)間 yyyy-MM-dd
public static Date strToDate(String strDate) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
ParsePosition pos = new ParsePosition(0);
Date strtodate = formatter.parse(strDate, pos);
return strtodate;
}
1.10 得到現(xiàn)在時(shí)間
public static Date getNow() {
Date currentTime = new Date();
return currentTime;
}
1.11 提取一個(gè)月中的最后一天
public static Date getLastDate(long day) {
Date date = new Date();
long date_3_hm = date.getTime() - 3600000 * 34 * day;
Date date_3_hm_date = new Date(date_3_hm);
return date_3_hm_date;
}
1.12 字符串 yyyyMMdd HHmmss
public static String getStringToday() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd HHmmss");
String dateString = formatter.format(currentTime);
return dateString;
}
1.13 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.substring(11, 13);
return hour;
}
1.14 得到現(xiàn)在分鐘
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;
}
1.15 根據(jù)用戶傳入的時(shí)間表示格式，返回當(dāng)前時(shí)間的格式
如果是yyyyMMdd，注意字母y不能大寫。
public static String getUserDate(String sformat) {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat(sformat);
String dateString = formatter.format(currentTime);
return dateString;
}
2.1返回時(shí)間類型 yyyy-MM-dd HH:mm:ss
public static Date getNowDate() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String dateString = formatter.format(currentTime);
ParsePosition pos = new ParsePosition(8);
Date currentTime_2 = formatter.parse(dateString, pos);
return currentTime_2;
}
2.2返回短時(shí)間格式 yyyy-MM-dd
public static Date getNowDateShort() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
String dateString = formatter.format(currentTime);
ParsePosition pos = new ParsePosition(8);
Date currentTime_2 = formatter.parse(dateString, pos);
return currentTime_2;
}
2.3返回字符串格式 yyyy-MM-dd HH:mm:ss
public static String getStringDate() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String dateString = formatter.format(currentTime);
return dateString;
}
2.4返回短時(shí)間字符串格式y(tǒng)yyy-MM-dd
public static String getStringDateShort() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
String dateString = formatter.format(currentTime);
return dateString;
}
2.5小時(shí):分;秒 HH:mm:ss
public static String getTimeShort() {
SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss");
Date currentTime = new Date();
String dateString = formatter.format(currentTime);
return dateString;
}
2.6將長(zhǎng)時(shí)間格式字符串轉(zhuǎn)換為時(shí)間 yyyy-MM-dd HH:mm:ss
public static Date strToDateLong(String strDate) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
ParsePosition pos = new ParsePosition(0);
Date strtodate = formatter.parse(strDate, pos);
return strtodate;
}
2.7將長(zhǎng)時(shí)間格式時(shí)間轉(zhuǎn)換為字符串 yyyy-MM-dd HH:mm:ss
public static String dateToStrLong(java.util.Date dateDate) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String dateString = formatter.format(dateDate);
return dateString;
}
2.8將短時(shí)間格式時(shí)間轉(zhuǎn)換為字符串 yyyy-MM-dd
public static String dateToStr(java.util.Date dateDate) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
String dateString = formatter.format(dateDate);
return dateString;
}
2.9將短時(shí)間格式字符串轉(zhuǎn)換為時(shí)間 yyyy-MM-dd
public static Date strToDate(String strDate) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
ParsePosition pos = new ParsePosition(0);
Date strtodate = formatter.parse(strDate, pos);
return strtodate;
}
2.10得到現(xiàn)在時(shí)間
public static Date getNow() {
Date currentTime = new Date();
return currentTime;
}
2.11提取一個(gè)月中的最后一天
public static Date getLastDate(long day) {
Date date = new Date();
long date_3_hm = date.getTime() - 3600000 * 34 * day;
Date date_3_hm_date = new Date(date_3_hm);
return date_3_hm_date;
}
2.12字符串 yyyyMMdd HHmmss
public static String getStringToday() {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd HHmmss");
String dateString = formatter.format(currentTime);
return dateString;
}
2.13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.substring(11, 13);
return hour;
}
2.14得到現(xiàn)在分鐘
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;
}
2.15根據(jù)用戶傳入的時(shí)間表示格式，返回當(dāng)前時(shí)間的格式
如果是yyyyMMdd，注意字母y不能大寫。
public static String getUserDate(String sformat) {
Date currentTime = new Date();
SimpleDateFormat formatter = new SimpleDateFormat(sformat);
String dateString = formatter.format(currentTime);
return dateString;
}
2.16二個(gè)小時(shí)時(shí)間間的差值,必須保證二個(gè)時(shí)間都是"HH:MM"的格式，返回字符型的分鐘
ublic static String getTwoHour(String st1, String st2) {
String[] kk = null;
String[] jj = null;
kk = st1.split(":");
jj = st2.split(":");
if (Integer.parseInt(kk[0]) < Integer.parseInt(jj[0]))
return "0";
else {
double y = Double.parseDouble(kk[0]) + Double.parseDouble(kk[1]) / 60;
double u = Double.parseDouble(jj[0]) + Double.parseDouble(jj[1]) / 60;
if ((y - u) > 0)
return y - u + "";
else
return "0";
}
}
2.17得到二個(gè)日期間的間隔天數(shù)
public static String getTwoDay(String sj1, String sj2) {
SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd");
long day = 0;
try {
java.util.Date date = myFormatter.parse(sj1);
java.util.Date mydate = myFormatter.parse(sj2);
day = (date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000);
} catch (Exception e) {
return "";
}
return day + "";
}
由于“java時(shí)間日期格式轉(zhuǎn)換”的內(nèi)容太多，本文已滿，請(qǐng)看下文：
java時(shí)間日期格式轉(zhuǎn)換（二）：http://www.bjpowernode.com/javazixun/2323.html
