java根據(jù)時(shí)間格式轉(zhuǎn)換為字符串工具類方法總結(jié)

1. 根據(jù)時(shí)間格式轉(zhuǎn)換為字符串(Date date)

public static String getFormatTime(String pattern, Date date) {

SimpleDateFormat sdf =new SimpleDateFormat(pattern);

sdf.setTimeZone(TimeZone.getTimeZone("GMT+08:00"));

return sdf.format(date ==null ?new Date() : date);

}

調(diào)用舉例:String strTime = StringUtil.getFormatTime("yyyy-MM-dd",new Date());

2.根據(jù)時(shí)間格式轉(zhuǎn)換為字符串(long date)

/**

* 根據(jù)時(shí)間格式轉(zhuǎn)換為時(shí)間戳

* @param pattern

* @param time

* @return long

*/

public static long getFormatTimeToLong(String pattern, String time) {

SimpleDateFormat sdf =new SimpleDateFormat(pattern);

sdf.setTimeZone(TimeZone.getTimeZone("GMT+08:00"));

try {

if (!TextUtils.isEmpty(time)) {

return sdf.parse(time).getTime();

}

}catch (ParseException e) {

// TODO Auto-generated catch block

? ? ? ? e.printStackTrace();

}

return 0;

}

調(diào)用舉例:long millisecond = StringUtil.getFormatTimeToLong("yyyy-MM-dd HH:mm:ss", time);

public static String getFormatTime(String pattern,long date) {

SimpleDateFormat sdf =new SimpleDateFormat(pattern);

sdf.setTimeZone(TimeZone.getTimeZone("GMT+08:00"));

Date date2 =new Date();

date2.setTime(date);

return sdf.format(date2);

}

調(diào)用舉例:String strTime = StringUtil.getFormatTime("yyyy-MM-dd HH:mm:ss", millisecond );

3.根據(jù)時(shí)間格式轉(zhuǎn)換為字符串(String date)

public static String getFormatTime(String pattern, String date) {

SimpleDateFormat sdf =new SimpleDateFormat(pattern);

sdf.setTimeZone(TimeZone.getTimeZone("GMT+08:00"));

try {

return sdf.format(sdf.parse(date).getTime());

}catch (ParseException e) {

// TODO Auto-generated catch block

? ? ? ? e.printStackTrace();

}

return "";

}

調(diào)用舉例:String strTime = StringUtil.getFormatTime("yyyy-MM-dd", "String時(shí)間字符串");

4.根據(jù)格式互轉(zhuǎn)

public static String getFormatTimeFromPatternToPattern(String rawPattern, String pattern, String date) {

SimpleDateFormat sdf =new SimpleDateFormat(rawPattern);

sdf.setTimeZone(TimeZone.getTimeZone("GMT+08:00"));

SimpleDateFormat newSdf =new SimpleDateFormat(pattern);

try {

return newSdf.format(sdf.parse(date));

}catch (ParseException e) {

// TODO Auto-generated catch block

? ? ? ? e.printStackTrace();

}

return date;

}

舉例調(diào)用:String strTime=getFormatTimeFromPatternToPattern("yyyy年MM月dd日","yyyy-MM-dd", date)

5.根據(jù)時(shí)間格式轉(zhuǎn)換為時(shí)間戳(返回long類型)

public static long getFormatTimeToLong(String pattern, String time) {

SimpleDateFormat sdf =new SimpleDateFormat(pattern);

sdf.setTimeZone(TimeZone.getTimeZone("GMT+08:00"));

try {

if (!TextUtils.isEmpty(time)) {

return sdf.parse(time).getTime();

}

}catch (ParseException e) {

// TODO Auto-generated catch block

? ? ? ? e.printStackTrace();

}

return 0;

}

舉例調(diào)用:String strTime=StringUtil.getFormatTime("yyy-MM-dd HH:mm:ss",new Date(StringUtil.getFormatTimeToLong("yyy-MM-dd HH:mm:ss", "String時(shí)間字符串")))

6.根據(jù)時(shí)間格式轉(zhuǎn)換為時(shí)間戳(返回Date類型)

public static Date getFormatTimeToDate(String pattern, String time) {

SimpleDateFormat sdf =new SimpleDateFormat(pattern);

sdf.setTimeZone(TimeZone.getTimeZone("GMT+08:00"));

try {

Date newTime = sdf.parse(time);

return newTime;

}catch (ParseException e) {

return new Date();

}

}

舉例調(diào)用:Date date3 =getFormatTimeToDate("HH:mm", "String時(shí)間字符串");

6.根據(jù)時(shí)間格式轉(zhuǎn)換為字符串(返回String類型的)

public static String getFormatTimeNoZone(String pattern, Date date) {

SimpleDateFormat sdf =new SimpleDateFormat(pattern);

sdf.setTimeZone(TimeZone.getTimeZone("GMT+08:00"));

return sdf.format(date ==null ?new Date() : date);

}

舉例調(diào)用:Calendar calendar = Calendar.getInstance();

Date date2 =new Date(getFormatTimeToLong("yyyy-MM-dd", "String時(shí)間字符串"));

calendar.setTime(date2);

calendar.add(Calendar.DATE, +1);

String strTime= StringUtil.getFormatTimeNoZone("yyyy-MM-dd", calendar.getTime());

7.獲取中文月份

public static String[]mBigNums =new String[]{"一","二","三","四","五","六","七","八","九","十","十一","十二"};

public static String getBigMonth(int month) {

if (mBigNums.length > month -1) {

return mBigNums[month -1];

}

return "";

}

8.處理時(shí)間(毫秒格式 轉(zhuǎn)換為n天前)

public static String fixTime(long timestamp) {

LogUtil.e("時(shí)間",getFormatTime("yyyy-MM-dd", timestamp));

try {

if (timestamp ==0) {//不識(shí)別

? ? ? ? ? ? return "";

}

if (System.currentTimeMillis() - timestamp <1 *60 *1000) {//小于一分鐘

? ? ? ? ? ? return "剛剛";

}else if (System.currentTimeMillis() - timestamp <60 *60 *1000) {//小于一小時(shí)

? ? ? ? ? ? return ((System.currentTimeMillis() - timestamp) /1000 /60) +"分鐘前";

}else {

Calendar now = Calendar.getInstance();

Calendar c = Calendar.getInstance();

c.setTimeInMillis(timestamp);

if (c.get(Calendar.YEAR) == now.get(Calendar.YEAR)

&& c.get(Calendar.MONTH) == now.get(Calendar.MONTH)

&& c.get(Calendar.DATE) == now.get(Calendar.DATE)) {//

? ? ? ? ? ? ? ? return now.get(Calendar.HOUR_OF_DAY) - c.get(Calendar.HOUR_OF_DAY) +"小時(shí)前";

}

if (c.get(Calendar.YEAR) == now.get(Calendar.YEAR)

&& c.get(Calendar.MONTH) == now.get(Calendar.MONTH)

&& c.get(Calendar.DATE) == now.get(Calendar.DATE) -1) {

SimpleDateFormat sdf =new SimpleDateFormat("昨天 HH:mm");

return sdf.format(c.getTime());

}else if (c.get(Calendar.YEAR) == now.get(Calendar.YEAR)

&& c.get(Calendar.MONTH) == now.get(Calendar.MONTH)) {

return now.get(Calendar.DAY_OF_MONTH) - c.get(Calendar.DAY_OF_MONTH) +"天前";

}else if (c.get(Calendar.YEAR) == now.get(Calendar.YEAR)) {

return now.get(Calendar.MONTH) - c.get(Calendar.MONTH) +"月前";

}else {

return new SimpleDateFormat("yyyy年M月d日").format(c.getTime());

}

}

}catch (Exception e) {

e.printStackTrace();

return "";

}

}

調(diào)用舉例:String strTime=fixTime(StringUtil.getFormatTimeToLong("yyyy-MM-dd HH:mm:ss", freeBean.getConTime()))

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