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锁定老帖子 主题：时间类型代码的参考
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发表时间：2008-09-02
最后修改：2010-04-09
public class SfUtil {
public static final long hour = 60*60*1000l; //一个小时
public static final long oneday = 24*hour; //一天
public static String el(String str,int len){
if(str==null) return "";
if(len == -1) return str;
if(str.length()<=len) return str;
if(str.length()>len) return str.substring(0,len);
return "";
}
/**
* 显示按键
* @param list
* @return string
*/
public String getButtom(List list){
String button = "";
for(int i=0;i<list.size();i++){
Object[] obj = (Object[])list.get(i);
button += htmlButton(obj) + "  ";
}
return button;
}
private String htmlButton(Object[] obj){
StringBuffer button = new StringBuffer();
button.append("<input type=\"button\" name="+obj[0]+" value="+obj[1]+" onclick="+obj[2]+" id="+obj[3]+" ");
button.append(" class=\"button\" onmousedown=\"this.className='button_down'\" onmouseout=\"if(this.className!='button') this.className='button';\" ");
button.append(" onmouseover=\"if(this.className!='button_over') this.className='button_over';\" onfocus=\"this.blur();\">");
return button.toString();
}
/**
* 转为时间格式
* @param dateStr 2007-10-3 20:00
* @param format yyyy-MM-dd HH:mm
* @return date
*/
public static Date stringToDate(String dateStr,String format){
java.text.SimpleDateFormat sf = new SimpleDateFormat(format);
try {
Date date = sf.parse(dateStr);
return date;
} catch (ParseException e) {
return null;
}
}
public static Timestamp stringToTimestamp(String dateStr,String format){
if(format==null) format="yyyy-MM-dd HH:mm";
Date date = stringToDate(dateStr,format);
return new Timestamp(date.getTime());
}
//取出上个月的当前时间
public static Timestamp getlastMonthday(Timestamp time){
Calendar c = Calendar.getInstance();
c.setTimeInMillis(time.getTime());
c.set(Calendar.DAY_OF_MONTH,c.get(Calendar.DAY_OF_MONTH)==31?c.get(Calendar.DAY_OF_MONTH)-1:c.get(Calendar.DAY_OF_MONTH));
c.set(Calendar.MONTH,c.get(Calendar.MONTH)-1);
return new Timestamp(c.getTime().getTime());
}
/**
* 时间判断
* @param t1 当前时间
* @param t2 规写时间
* @param day 天数
* @return boolean
*/
public static boolean checkTimeBeweet(Timestamp t1,Timestamp t2,int day){
long daylong = 24*hour; //一天时间
long longt1 = t1.getTime();
long longt2 = t2.getTime();
System.out.println(""+(Math.abs(longt2-longt1)-daylong*day));
return Math.abs(longt2-longt1)-daylong*day>0;
}
/**
*转换为时间格式
* @param time
* @param i
* @return string
*/
public static String getDateFormat(Timestamp time,int i){
if(time==null) return "";
String format = "yyyy-MM-dd";
switch(i){
case 1:format="yyyy-MM-dd";break;
case 2:format="yyyy-MM-dd HH:mm";break;
case 3:format="HH点mm分";break;
case 4:format="yyyy年MM月dd日 HH点mm分";break;
case 5:format="yyyyMMdd";break;
case 6:format="yyyy年MM月dd日";break;
case 7:format="yyyyMMdd";break;
case 8:format="MM月dd日 HH点mm分";break;
case 9:format="MM-dd HH:mm";break;
case 10:format="MM月dd日";break;
case 11:format=" HH:mm";break;
case 12:format="yyyy";break;
case 13:format="MM-dd";break;
case 14:format="yyyyMM";break;
case 15:format="yyyy-MM-dd hh:mm";break;
case 16:format="yy-MMdd hh:mm";break;
case 17:format="yyyyMMddHH";break;
case 18:format="HH";break;
default: format = "yyyy-MM-dd";break;
}
SimpleDateFormat sdf = new SimpleDateFormat(format);
return sdf.format(time);
}
/**
* 一个月的第一天
* @param time
* @return
*/
public static Timestamp startOfMonth(Timestamp time){
time.setDate(1);
time.setHours(0);
time.setMinutes(0);
time.setSeconds(0);
return time;
}
/**
* 功能: 一月中的最后一天.
* 输入: time = 给出的当周内的某一天.
* 输出: 该周的最后一天.
* @param time
* @return
*/
public static Timestamp endOfMonth(Timestamp time){
time.setDate(DaysInMonth(time));
return time;
}
/**
* 功能: 当月的天数.
* 输入: month = 给出的该月的某一个时间.
* 输出: 这个月有多少天.
*
* @param time
* @return
*/
public static int DaysInMonth(Timestamp time){
int month=time.getMonth();
int year=time.getYear();
int DaysInMonth[] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
if(month==1){
if(IsLeapYear(year+1900))
DaysInMonth[1]= DaysInMonth[1]+1;
}
return DaysInMonth[month];
}
/**
* 功能: 判断是否是闰年.
* 输入: year = 给出的 1582 年以后的年份
* 输出: TRUE 是闰年, FALSE 不是..
*
* 能被100整除, 不能被400整除的年份, 不是闰年.
* 能被100整除, 也能被400整除的年份, 是闰年.
* 不能被100整除, 能被4整除的年份是闰年.
* @param year
* @return
*/
public static boolean IsLeapYear(int year){
if ((year % 100) == 0) return((year % 400) == 0);
return ((year % 4) == 0);
}
/**
* 半角转全角
* @param QJstr
* @return
*/
public static final String BQchange(String QJstr) {
String outStr = "";
String Tstr = "";
byte[] b = null;
for (int i = 0; i < QJstr.length(); i++) {
try {
Tstr = QJstr.substring(i, i + 1);
b = Tstr.getBytes("unicode");
} catch (java.io.UnsupportedEncodingException e) {
e.printStackTrace();
}
if (b[3] != -1) {
b[2] = (byte) (b[2] - 32);
b[3] = -1;
try {
outStr = outStr + new String(b, "unicode");
} catch (java.io.UnsupportedEncodingException e) {
e.printStackTrace();
}
} else
outStr = outStr + Tstr;
}
return outStr;
}
/**
* 全角转半角
* @param QJstr
* @return string
*/
public static final String QBchange(String QJstr) {
String outStr = "";
String Tstr = "";
byte[] b = null;
for (int i = 0; i < QJstr.length(); i++) {
try {
Tstr = QJstr.substring(i, i + 1);
b = Tstr.getBytes("unicode");
} catch (java.io.UnsupportedEncodingException e) {
e.printStackTrace();
}
if (b[3] == -1) {
b[2] = (byte) (b[2] + 32);
b[3] = 0;
try {
outStr = outStr + new String(b, "unicode");
} catch (java.io.UnsupportedEncodingException e) {
e.printStackTrace();
}
} else
outStr = outStr + Tstr;
}
return outStr;
}
private static String encoderString = "w123abcd48STGX0UVWYHIJ5fghijklmnstuvBCDEF67KL9AeQRMNopqrOPxyzZ&*%$@!><";
private static String encodeWord(String word){
int pos = encoderString.indexOf(word);
if(pos==-1)return word;
pos = 10+pos;
pos = pos%encoderString.length();
return encoderString.substring(pos,pos+1);
}
private static String deEncodeWord(String word){
int pos = encoderString.indexOf(word);
if(pos==-1)return word;
pos = encoderString.length()+pos-10;
pos = pos%encoderString.length();
return encoderString.substring(pos,pos+1);
}
public static final String IdTran = "adkkjasdf0988231273664767123hhjasdhfhyuehadssfnxjaufeaeh12";
public static final String PwdTran = "adkkjasdfaoopadfjue1273664767123hhjasdhfhyuehadssfnxjaufeaeh12";
//加密
public static String tranValueEncode(String str){
StringBuffer sb = new StringBuffer("");
for(int i=0;i<str.length();i++){
String ch = str.substring(i,i+1);
sb.append(encodeWord(ch));
}
return sb.toString();
}
//解密
public static String stanValueDeEncode(String str){
StringBuffer sb = new StringBuffer("");
for(int i=0;i<str.length();i++){
String ch = str.substring(i,i+1);
sb.append(deEncodeWord(ch));
}
return sb.toString();
}
/**
* 取出上半年或下半年
* @param time
* @return string
*/
public static String getYearhalf(Timestamp time){
Calendar cal = Calendar.getInstance();
cal.setTimeInMillis(System.currentTimeMillis());
String year = cal.get(Calendar.YEAR)+"";
if(time==null) return year+"06";
String ds = year+"-06-01 00:00";
String format = "yyyy-MM-dd HH:mm";
Timestamp t = new Timestamp(stringToDate(ds,format).getTime());
if(t.equals(time)||t.after(time)) return year+"06";
else return year+"07";
}
public static String getWeek(int year,int month,int day){
Calendar C = Calendar.getInstance();
C.set(year,month-1,day,0,0,0);
int week = C.get(Calendar.DAY_OF_WEEK);
String weekStr = "";
switch(week){
case 1:
weekStr = "星期天";
break;
case 2:
weekStr = "星期一";
break;
case 3:
weekStr = "星期二";
break;
case 4:
weekStr = "星期三";
break;
case 5:
weekStr = "星期四";
break;
case 6:
weekStr = "星期五";
break;
case 7:
weekStr = "星期六";
break;
}
return weekStr;
}
/**
* 取昨天
* @param today (格式:20070902)
* @param i
* @return
*/
public static String getYesterdayByToday(String today,int i,int next){
String yesterdayByToday = "";
String yy = today.substring(0,4);
String mm = "";
String dd = "";
mm=today.substring(4,5);
if(mm.equals("0")){
mm=today.substring(5,6);
}else{
mm = today.substring(4,6);
}
dd=today.substring(6,7);
if(dd.equals("0")){
dd=today.substring(7,8);
}else{
dd=today.substring(6,8);
}
int yy1 = Integer.parseInt(yy);
int mm1 = Integer.parseInt(mm);
int dd1 = Integer.parseInt(dd);
int[] yesterday = getBeforeDate(yy1,mm1,dd1,next);
int yy2 = yesterday[0];
int mm2 = yesterday[1];
int dd2 = yesterday[2];
String mm3 = ""+mm2;
if(mm3.length()<2){
mm3 = "0"+mm3;
}
String dd3 = ""+dd2;
if(dd3.length()<2){
dd3 = "0"+dd3;
}
switch(i){
case 1:
yesterdayByToday = yy2+"-"+mm3+"-"+dd3;
break;
case 2:
yesterdayByToday = yy2+mm3+dd3;
break;
default:
yesterdayByToday = yy2+"-"+mm3+"-"+dd3;
}
return yesterdayByToday;
}
/**
* 得到某一个日期的前面的日期，返回为一个一维数组，有3个元素，分别为年、月、日
* @param year
* @param month
* @param day
* @param beforeDays
* @return
*/
public static int[] getBeforeDate(int year,int month,int day,int beforeDays){
Calendar C = Calendar.getInstance();
C.set(year,month-1,day,0,0,0);
C.add(Calendar.DATE,beforeDays*(-1));
int y = C.get(Calendar.YEAR);
int m = C.get(Calendar.MONTH)+1;
int d = C.get(Calendar.DATE);
int[] a = new int[3];
a[0] = y;
a[1] = m;
a[2] = d;
return a;
}
public static String showNumber(String number,String format){
if(number==null) return "";
if(format == null) format = "#.##";
double datanumber = Double.parseDouble(number);
java.text.NumberFormat nf = new DecimalFormat(format);
return nf.format(datanumber);
}
public static String showNumber(float number,String format){
if(number==0.0) return "0.0";
if(format == null) format = "#.##";
//float datanumber = number;
java.text.NumberFormat nf = new DecimalFormat(format);
return nf.format(number);
}
/**
* 获取给定时间所在月的第一天Ｆ的日期和最后一天的日期 *
* @param date
* @return Date数组，[0]为第一天的日期，[1]最后一天的日期
*/
public static Date[] getMonthStartAndEndDate(Date date) {
Date[] dates = new Date[2];
Date firstDateOfMonth, lastDateOfMonth;
// 得到当天是这月的第几天
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
int dayOfMonth = calendar.get(Calendar.DAY_OF_MONTH);
// 减去dayOfMonth,得到第一天的日期，因为Calendar用０代表每月的第一天，所以要减一
calendar.add(Calendar.DAY_OF_MONTH, -(dayOfMonth - 1));
calendar.set(Calendar.HOUR_OF_DAY,0);
calendar.set(Calendar.MINUTE,0);
calendar.set(Calendar.SECOND,0);
calendar.set(Calendar.MILLISECOND,0);
firstDateOfMonth = calendar.getTime();
// calendar.getActualMaximum(Calendar.DAY_OF_MONTH)得到这个月有几天
calendar.add(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH) - 1);
calendar.set(Calendar.HOUR_OF_DAY,23);
calendar.set(Calendar.MINUTE,59);
calendar.set(Calendar.SECOND,59);
calendar.set(Calendar.MILLISECOND,99);
lastDateOfMonth = calendar.getTime();
dates[0] = firstDateOfMonth;
dates[1] = lastDateOfMonth;
return dates;
}
public static Date getDayBetweeb(Date date,int day,int minute){
Calendar C = Calendar.getInstance();
C.setTime(date);
C.set(Calendar.HOUR_OF_DAY,day);
C.set(Calendar.MINUTE,minute);
C.set(Calendar.SECOND,0);
C.set(Calendar.MILLISECOND,0);
return C.getTime();
}
/**
* 得到某一天的开始时刻和结束时刻
* @param date
* @return
*/
public static Date[] getDayStartAndEndDate(Date date){
Date[] dates = new Date[2];
Calendar C = Calendar.getInstance();
C.setTime(date);
C.set(Calendar.HOUR_OF_DAY,0);
C.set(Calendar.MINUTE,0);
C.set(Calendar.SECOND,0);
C.set(Calendar.MILLISECOND,0);
dates[0] = C.getTime();
C.set(Calendar.HOUR_OF_DAY,23);
C.set(Calendar.MINUTE,59);
C.set(Calendar.SECOND,59);
C.set(Calendar.MILLISECOND,99);
dates[1] = C.getTime();
return dates;
}
/**
* 20040806 ---->2005-08-06
* @param DB_declaredTime
* @return
*/
public static String getChange(String DB_declaredTime,int i){
String changeTime = "";
String y1=DB_declaredTime.substring(0,4);
String m1=DB_declaredTime.substring(4,6);
String d1=DB_declaredTime.substring(6,8);
if(i==1) changeTime = y1+"年"+m1+"月"+d1+"日";
else changeTime = y1+"-"+m1+"-"+d1;
return changeTime;
}
//计算明天(-1)
public static Timestamp TimestampTo(Timestamp time,int next){
if(time == null) time = new Timestamp(System.currentTimeMillis());
String str = getDateFormat(time,5);
return stringToTimestamp(getYesterdayByToday(str,1,next)+" 00:00",null);
}
//当前时间，返回一天的开始时间(1)和结束时间(2)
public static Timestamp getDayTime(Timestamp time,int local){
Date[] date = getDayStartAndEndDate(time);
Date dtime = null;
switch(local){
case 1: dtime = date[0];break;
case 2: dtime = date[1];break;
default:dtime = date[0];break;
}
return dtime==null?new Timestamp(System.currentTimeMillis()):new Timestamp(dtime.getTime());
}
/**
* 将文件名中的汉字转为UTF8编码的串,以便下载时能正确显示另存的文件名.
* @param s 原文件名
* @return 重新编码后的文件名
*/
public static String toUtf8String(String s) {
StringBuffer sb = new StringBuffer();
for (int i=0;i<s.length();i++) {
char c = s.charAt(i);
if (c >= 0 && c <= 255) {
sb.append(c);
} else {
byte[] b;
try {
b = Character.toString(c).getBytes("utf-8");
} catch (Exception ex) {
System.out.println(ex);
b = new byte[0];
}
for (int j = 0; j < b.length; j++) {
int k = b[j];
if (k < 0) k += 256;
sb.append("%" + Integer.toHexString(k).
toUpperCase());
}
}
}
return sb.toString();
}
public static String asciiToUnicode(String source){
Pattern pattern = Pattern.compile("\\\\u(\\p{XDigit}{4})");
java.util.regex.Matcher matcher = pattern.matcher(source);
StringBuffer buf = new StringBuffer(200);
System.out.println(""+matcher.groupCount());
while (matcher.find()) {
char ch = (char) Integer.parseInt(matcher.group(1), 16);
System.out.println(""+ch);
buf.append(ch);
}
return buf.toString();
}
//取整数（两个时间相减）
public static String getItemnumber(String number){
if(number==null||number.length()==0) return "1";
float f = Float.valueOf(number);
return new Double(Math.ceil(f)).intValue()+"";
}
//取季度的开始时间和结束时间
public static Date[] getQuarter(int year,int quarter){
int monthst = 1;
int monthet = 3;
switch(quarter){
case 2:{monthst = 4;monthet=6;break;}
case 3:{monthst = 7;monthet=9;break;}
case 4:{monthst = 10;monthet=12;break;}
case 6:{monthst = 1;monthet=6;break;} //上半年
case 12:{monthst = 7;monthet=12;break;} //下半年
default:{monthst=1;monthet=3;break;}
}
Calendar cal = Calendar.getInstance();
cal.set(year,monthst-1,1);
Date[] date1 = getMonthStartAndEndDate(cal.getTime());
cal.set(year,monthet-1,1);
Date[] date2 = getMonthStartAndEndDate(cal.getTime());
return new Date[]{date1[0],date2[1]};
}
//取出两个时间之间的天数
public static List getBetweebTimes(String startstr,String endstr,int index){
Timestamp startTime = null;
Timestamp endTime = null;
Timestamp currtime = new Timestamp(System.currentTimeMillis());
Timestamp beforeDate = SfUtil.TimestampTo(currtime,1);//取昨天日期
if(startstr==null&&endstr==null){
startTime = SfUtil.TimestampTo(currtime,15);
endTime = beforeDate;
}else{
if(startstr!=null){
startstr = startstr + " 00:00";
startTime = SfUtil.stringToTimestamp(startstr,null);
if(endstr==null) endTime = beforeDate;
}
if(endstr!=null){
endstr = endstr + " 00:00";
endTime = SfUtil.stringToTimestamp(endstr,null);
if(startstr == null) startTime = SfUtil.TimestampTo(currtime,15);
}
}
return getTimeBetweeb(startTime,endTime,index);
}
//取出两个时间之间的天数(按不同的格式)
public static List getTimeBetweeb(Timestamp startTime,Timestamp endTime,int index){
long MS_SECOND = 1000;
long MS_MINUTE = 60 * MS_SECOND;
long MS_HOUR = 60 * MS_MINUTE ;
long MS_DAY = 24 * MS_HOUR;
startTime = getDayTime(startTime,1);
endTime = getDayTime(endTime,1);
System.out.println("startTime == "+startTime);
System.out.println("endTime == "+endTime);
java.util.Date start = startTime;
java.util.Date end = endTime;
List days = new ArrayList();
for(java.util.Date d=start;!d.after(end)||d.equals(end);){
Timestamp time = new Timestamp(d.getTime());
String yyyymmdd = getDateFormat(time,index);
days.add(yyyymmdd);
d = new java.util.Date(d.getTime() + MS_DAY);
}
return days;
}
public static void main(String[] args){
/*Timestamp time = stringToTimestamp("2008-06-01 00:00",null);
Timestamp time1 = getlastMonthday(time);
System.out.println(""+time1);
Date[] dates = getMonthStartAndEndDate(time);
System.out.println(""+new Timestamp(dates[0].getTime()));
System.out.println(""+new Timestamp(dates[1].getTime()));*/
/*Calendar cal = Calendar.getInstance();
cal.setTimeInMillis(System.currentTimeMillis());
System.out.println(""+cal.get(Calendar.YEAR));
System.out.println(""+(cal.get(Calendar.MONTH)+1));
*/
/*Calendar cal = Calendar.getInstance();
cal.setTimeInMillis(System.currentTimeMillis());
for(int i=0;i<38;i++){
cal.set(Calendar.DATE,Calendar.DAY_OF_WEEK+i);
System.out.println(""+new Timestamp(cal.getTimeInMillis()));
}*/
//Timestamp today = new Timestamp(System.currentTimeMillis());
//String str = getDateFormat(today,5);
//System.out.println(str + " "+stringToTimestamp(getYesterdayByToday(str,1,-1)+" 00:00",null));
//System.out.println(""+new Timestamp(getDayBetweeb(today,19,40).getTime()));
String abb = "妇女的典范\\u2014\\u2014符桂花同志的优秀事迹";
String abc = "国防大学\"成功\"研究成功！";
//abb = java.net.URLEncoder.encode(abb);
//abb = java.net.URLDecoder.decode(abb);
//String abb1 = asciiToUnicode(abb);
System.out.println(""+abc.replaceAll("\"","“").replaceAll("\"","”"));
System.out.println("全角转半角 === "+QBchange(abc));
System.out.println("半角转全角 === "+BQchange(abc));
System.out.println(""+new Double(Math.ceil(Float.valueOf(10.5315972222222f))).intValue());
System.out.println(""+getItemnumber("-10.5315972222222"));
System.out.println(""+stanValueDeEncode("gggggHrr"));
System.out.println(""+TimestampTo(null,1));
/*SfUtil u = new SfUtil();
Object[] obj = u.getBetweebTimes("2008-08-28","2008-08-28",7);
for(int i=0;i<obj.length;i++){
System.out.println("obj === "+obj[i]);
}
*/
Date[] date = getQuarter(2008,12);
System.out.println(" "+new Timestamp(date[0].getTime()));
System.out.println(" "+new Timestamp(date[1].getTime()));
}
}
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