📄 stringutils.java
字号:
SimpleDateFormat formatter = new SimpleDateFormat("yyyy/MM/dd");
String strDate = formatter.format(myDate);
return strDate;
}
public static String formatDate3(Date myDate) {
SimpleDateFormat formatter = new SimpleDateFormat("MM-dd HH:mm");
String strDate = formatter.format(myDate);
return strDate;
}
public static String formatDate4(Date myDate) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd");
String strDate = formatter.format(myDate);
return strDate;
}
public static String formatDate5(Date myDate) {
String strDate = getYear(myDate) + "-" + getMonth(myDate) + "-"
+ getDay(myDate);
return strDate;
}
public static String formatDate6(Date myDate) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm");
String strDate = formatter.format(myDate);
return strDate;
}
/**
* formatDateForRss(Date myDate) 格式化为RSS文件需要的rfc822规范
*
* @param myDate
* Date
* @return String
*/
public static String formatDateForRss(Date myDate) {
SimpleDateFormat sdfTemp = new SimpleDateFormat(
"EEE, d MMM yyyy HH:mm:ss z", Locale.US);
SimpleTimeZone aZone = new SimpleTimeZone(8, "GMT");
sdfTemp.setTimeZone(aZone);
return sdfTemp.format(myDate);
}
public static long Date2Long(int year, int month, int date) {
Calendar cld = Calendar.getInstance();
month = month - 1;
cld.set(year, month, date);
return cld.getTime().getTime();
}
public static long Time2Long(int year, int month, int date, int hour,
int minute, int second) {
Calendar cld = Calendar.getInstance();
month = month - 1;
cld.set(year, month, date, hour, minute, second);
return cld.getTime().getTime();
}
public static int getYear(long t) {
Calendar cld = Calendar.getInstance();
if (t > 0) {
cld.setTime(new java.util.Date(t));
}
return cld.get(Calendar.YEAR);
}
public static int getMonth(long t) {
Calendar cld = Calendar.getInstance();
if (t > 0) {
cld.setTime(new java.util.Date(t));
}
return cld.get(Calendar.MONTH) + 1;
}
public static int getDay(long t) {
Calendar cld = Calendar.getInstance();
if (t > 0) {
cld.setTime(new java.util.Date(t));
}
return cld.get(Calendar.DAY_OF_MONTH);
}
public static int getHour(long t) {
Calendar cld = Calendar.getInstance();
if (t > 0) {
cld.setTime(new java.util.Date(t));
}
return cld.get(Calendar.HOUR_OF_DAY);
}
public static int getMinute(long t) {
Calendar cld = Calendar.getInstance();
if (t > 0) {
cld.setTime(new java.util.Date(t));
}
return cld.get(Calendar.MINUTE);
}
public static int getSecond(long t) {
Calendar cld = Calendar.getInstance();
if (t > 0) {
cld.setTime(new java.util.Date(t));
}
return cld.get(Calendar.SECOND);
}
public static int getYear(Date date) {
Calendar cld = Calendar.getInstance();
cld.setTime(date);
return cld.get(Calendar.YEAR);
}
public static int getMonth(Date date) {
Calendar cld = Calendar.getInstance();
cld.setTime(date);
return cld.get(Calendar.MONTH) + 1;
}
public static int getDay(Date date) {
Calendar cld = Calendar.getInstance();
cld.setTime(date);
return cld.get(Calendar.DAY_OF_MONTH);
}
public static int getHour(Date date) {
Calendar cld = Calendar.getInstance();
cld.setTime(date);
return cld.get(Calendar.HOUR_OF_DAY);
}
public static int getMinute(Date date) {
Calendar cld = Calendar.getInstance();
cld.setTime(date);
return cld.get(Calendar.MINUTE);
}
public static int getSecond(Date date) {
Calendar cld = Calendar.getInstance();
cld.setTime(date);
return cld.get(Calendar.SECOND);
}
public static int getYear() {
Calendar cld = Calendar.getInstance();
cld.setTime(new java.util.Date());
return cld.get(Calendar.YEAR);
}
public static int getMonth() {
Calendar cld = Calendar.getInstance();
cld.setTime(new java.util.Date());
return cld.get(Calendar.MONTH) + 1;
}
public static int getDay() {
Calendar cld = Calendar.getInstance();
cld.setTime(new java.util.Date());
return cld.get(Calendar.DAY_OF_MONTH);
}
public static String replaceComma(String text) {
if (text != null) {
text = text.replaceAll("，", ",");
}
return text;
}
public static String replaceBr(String text) {
if (text != null) {
text = text.replaceAll("\n", "<BR>");
text = text.replaceAll("\n", "<br>");
}
return text;
}
public static long getLongTime() {
return System.currentTimeMillis();
}
/**
* Check a string null or blank.
*
* @param param
* string to check
* @return boolean
*/
public static boolean nullOrBlank(String param) {
return (param == null || param.length() == 0 || param.trim().equals("")) ? true
: false;
}
public static String notNull(String param) {
return param == null ? "" : param.trim();
}
/**
* Parse a string to boolean.
*
* @param param
* string to parse
* @return boolean value, if param begin with(1,y,Y,t,T) return true, on
* exception return false.
*/
public static boolean parseBoolean(String param) {
if (nullOrBlank(param)) {
return false;
}
switch (param.charAt(0)) {
case '1':
case 'y':
case 'Y':
case 't':
case 'T':
return true;
}
return false;
}
/*
* public static String[] getPagesign(Locale locale) { String[] pagessign = {
* Messages.getMessage(locale, "pages.first"), Messages.getMessage(locale,
* "pages.previous"), Messages.getMessage(locale, "pages.next"),
* Messages.getMessage(locale, "pages.end")}; return pagessign; }
*/
/**
* dateToString(Date inDate) 把日期型转换成字符型"yyyy-MM-dd HH:mm:ss"
*
* @param inDate
* Date
* @return String
*/
public static String dateToString(Date inDate) {
String outDateStr = "";
if (inDate != null) {
SimpleDateFormat formatter = new SimpleDateFormat(
"yyyy-MM-dd HH:mm:ss");
outDateStr = formatter.format(inDate);
}
return outDateStr;
}
/***************************************************************************
* dateToSimpleStr 把日期型转换成字符型"yyyy-MM-dd"
*
* @param inDate
* Date 需要转换的日期时间
* @return outDateStr String
**************************************************************************/
public static String dateToSimpleStr(Date inDate) {
String outDateStr = "";
if (inDate != null) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
outDateStr = formatter.format(inDate);
}
return outDateStr;
}
/***************************************************************************
* stringToDateWithTime 把字符型"yyyy-MM-dd HH:mm:ss"转换成日期型
*
* @param s
* String 需要转换的日期时间字符串
* @return theDate Date
**************************************************************************/
public static Date stringToDateWithTime(String s) {
Date theDate = new Date();
try {
if (s != null) {
SimpleDateFormat dateFormatter = new SimpleDateFormat(
"yyyy-MM-dd HH:mm:ss");
theDate = dateFormatter.parse(s);
} else {
theDate = null;
}
} catch (ParseException pe) {
pe.printStackTrace();
}
return theDate;
}
/***************************************************************************
* stringToDate 把字符型"yyyy-MM-dd"转换成日期型
*
* @param s
* String 需要转换的日期时间字符串
* @return theDate Date
**************************************************************************/
public static Date stringToDate(String s) {
Date theDate = new Date();
try {
if (s != null) {
SimpleDateFormat dateFormatter = new SimpleDateFormat(
"yyyy-MM-dd");
theDate = dateFormatter.parse(s);
} else {
theDate = null;
}
} catch (ParseException pe) {
pe.printStackTrace();
}
return theDate;
}
/***************************************************************************
* dateAddInt Date +/- int = 新的Date
*
* @param inDate
* Date 原日期
* @param AddDateInt
* int 要加减的天数
* @return ReturnDate Date 新的Date
**************************************************************************/
@SuppressWarnings("static-access")
public static Date dateAddInt(Date inDate, int AddDateInt) {
Calendar currentC = Calendar.getInstance();
currentC.setTime(inDate);
currentC.add(currentC.DAY_OF_YEAR, AddDateInt);
return currentC.getTime();
}
/***************************************************************************
* dayOfWeek 获得星期几
*
* @param inDate
* Date 原日期
* @param AddDateInt
* int 要加减的天数
* @return dayOfWeek int 获得星期几
**************************************************************************/
public static int dayOfWeek(Date inDate) {
int dayOfWeek = 0;
Calendar theCalendar = new GregorianCalendar();
String DateStr = dateToString(inDate);
theCalendar.set(Integer.parseInt(DateStr.substring(0, 4)), Integer
.parseInt(DateStr.substring(5, 7)) - 1, Integer
.parseInt(DateStr.substring(8, 10)));
dayOfWeek = theCalendar.get(Calendar.DAY_OF_WEEK) - 1;
if (dayOfWeek == 7) {
dayOfWeek = 0;
}
return dayOfWeek;
}
/***************************************************************************
* minusDate 计算两个日期的相隔天数
*
* @param beginDate
* 开始日期
* @param endDate
* 开始日期
* @return result long
**************************************************************************/
public static long minusDate(Date beginDate, Date endDate) {
long result = (beginDate.getTime() - endDate.getTime())
/ (1000 * 60 * 60 * 24);
return result;
}
/***************************************************************************
* getAge
*
* @deprecated 根据生日计算年龄，周岁
* @param brithday
* 生日的字符串(yyyy-mm-dd)
* @return age int
**************************************************************************/
public static int getAge(String brithday) {
int age = 0;
try {
Calendar birth = Calendar.getInstance();
int year = Integer.parseInt(brithday.substring(0, 4));
int month = Integer.parseInt(brithday.substring(5, 7)) - 1;
int day = Integer.parseInt(brithday.substring(8, 10));
birth.set(year, month, day);
Calendar today = Calendar.getInstance();
if (today.get(Calendar.MONTH) > birth.get(Calendar.MONTH)
|| (today.get(Calendar.MONTH) == birth.get(Calendar.MONTH))
&& today.get(Calendar.DATE) >= birth.get(Calendar.DATE))
age = today.get(Calendar.YEAR) - birth.get(Calendar.YEAR);
else
age = today.get(Calendar.YEAR) - birth.get(Calendar.YEAR) - 1;
} catch (Exception ex) {
System.out.println("Error code:" + ex);
}
return age;
}
/***************************************************************************
* dateStrToLong
*
* @see 2005-11-15
* @param dateStr
* 日期字符串yyyy-mm-dd
* @return long theDay
**************************************************************************/
public static long dateStrToLong(String dateStr) {
long theDate = getLongTime();
Date thisDate = stringToDate(dateStr);
if (thisDate != null) {
theDate = thisDate.getTime();
}
return theDate;
}
/***************************************************************************
* dateStrWithTimeToLong
*
* @param dateStr
* 日期字符串yyyy-MM-dd HH:mm:ss
* @return long theDay
**************************************************************************/
public static long dateStrWithTimeToLong(String dateStr) {
long theDate = getLongTime();
Date thisDate = stringToDateWithTime(dateStr);
if (thisDate != null) {
theDate = thisDate.getTime();
}
return theDate;
}
/***************************************************************************
* longToDateStr
*
* @param long
* theDateLong
* @return String DateStr yyyy-MM-dd
**************************************************************************/
public static String longToDateStr(long theDateLong) {
String dateStr = "1970-01-01";
try {
dateStr = Integer.toString(getYear(theDateLong)) + "-"
+ getMonth(theDateLong) + "-" + getDay(theDateLong);
} catch (Exception ex) {
System.out.println("error code:" + ex);
}
return dateStr;
}
/***************************************************************************
* longToDateStr
*
* @param long
* theDateLong
* @return String DateStr yyyy-MM-dd
**************************************************************************/
public static String longToDateWithTimeStr(long theDateLong) {
String dateStr = "1970-01-01 00:00:00";
try {
dateStr = Integer.toString(getYear(theDateLong)) + "-"
+ getMonth(theDateLong) + "-" + getDay(theDateLong) + " "
+ getHour(theDateLong) + ":" + getMinute(theDateLong) + ":"
+ getSecond(theDateLong);
} catch (Exception ex) {
System.out.println("error code:" + ex);
}
return dateStr;
}
/**
* 反转数组
*
* @param src
* 源数组
* @return 转换后的数组
*/
public static int[] ArrayConvert(int[] src) {
if (src == null) {
return null;
}
int length = src.length;
int temp = 0;
// 反转
for (int i = 0; i < length / 2; i++) {
temp = src[i];
src[i] = src[length - i - 1];
src[length - i - 1] = temp;
}
return src;
}
public static void main(String[] args) {
/*
* String t = "abcdfg\"sfdfaeeed<a href=>ghjfghj"; t =
* escapeForSpecial(t); System.out.println(t);
* System.out.println(unescapeFromXML(t));
*/
Date theDate = new Date();
System.out.println(theDate.getTime());
String temp = dateToSimpleStr(theDate);
System.out.println(temp);
long ldate = dateStrToLong(temp);
System.out.println(ldate);
System.out.println(getYear(ldate));
System.out.println(getMonth(ldate));
System.out.println(getDay(ldate));
}
}
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -