Time and String Conversion, date/string

Package com. neweb. botcashier. util;

Import java. Math. bigdecimal;
Import java. Text. dateformat;
Import java. Text. simpledateformat;
Import java. util. calendar;
Import java. util. date;

Import org. Apache. log4j. Logger;

Import com. neweb. botcashier. Base. Exception. appexception;

Public class dateutils {

Private Static logger = logger. getlogger (dateutils. Class );

Public static final string date_pattern_default = "yyyymmdd ";
Public static final string time_pattern_default = "hhmmss ";

/**
* String duration
* @ Param STR time string
* @ Param FMT string format
* @ Return date
*/
Public static date stringtodate (string STR, string FMT ){
If (null = STR | "". Equals (STR ))
Return NULL;

Java. Text. simpledateformat SDF = new java. Text. simpledateformat (FMT );
Try {
Return SDF. parse (STR );
} Catch (Java. Text. parseexception PE ){
Logger. Error (PE );
}
Return NULL;
}

/**
* String expiration date, which is in the format of yyyymmdd.
* @ Param STR date string
* @ Return date
*/
Public static date stringtodate (string Str ){
If (null = STR | "". Equals (STR ))
Return NULL;
Returnstringtodate (STR, date_pattern_default );
}

/**
* Date string
* @ Param date
* @ Param FMT string format
* @ Return string
*/
Public static string datetostring (date, string FMT ){
If (null = Date)
Return "";

Java. Text. simpledateformat SDF = new java. Text. simpledateformat (FMT );
Try {
Return new string (SDF. Format (date, new stringbuffer (), new java. Text. fieldposition (0 )));
} Catch (nullpointerexception ne ){
Logger. Error (NE );
}
Return NULL;
}

/**
* Date delimiter string, which is in the format of yyyymmdd.
* @ Param date
* @ Return string
*/
Public static string datetostring (date ){
If (null = Date)
Return "";
Returndatetostring (date, date_pattern_default );
}

/**
* Number of date records
* @ Param date
* @ Return
*/
Public static int datetoint (date ){
Try {
Return integer. parseint (dateutils. datetostring (date ));
} Catch (exception e ){
Logger. Error (E. getmessage (), e );
Return 0;
}
}

/**
* Data Date time period Date time
* @ Param date
* @ Param time
* @ Return
*/
Public static date inttodate (INT date, int time ){
String fulldatetime = intdatetostr (date) + inttimetostr (time );
Return stringtodate (fulldatetime, "yyyymmddhhmmss ");
}

/**
* Time period string, which is in the format of hhmmss.
* @ Param date time
* @ Return string
*/
Public static string timetostring (date ){
If (null = Date)
Return "";
Return datetostring (date, time_pattern_default );
}
/**
* Time period string, which is in the format of hhmmss.
* @ Param date time
* @ Return string
*/
Public static string timetostring (date, string FMT ){
If (null = Date)
Return "";
Return datetostring (date, FMT );
}
/**
* Time limit data
* @ Param date
* @ Return
*/
Public static int timetoint (date ){
Try {
Return integer. parseint (dateutils. timetostring (date ));
} Catch (exception e ){
Logger. Error (E. getmessage (), e );
Return 0;
}
}

/**
* Data Date string
* @ Param date
* @ Param FMT
* @ Return
*/
Public static string intdatetostr (INT date, string FMT ){
Return datetostring (stringtodate (string. Format ("% 08d", date), FMT );
}

/**
* Data Date string, in the specified format: yyyymmdd
* @ Param date
* @ Return
*/
Public static string intdatetostr (INT date ){
Return intdatetostr (date, date_pattern_default );
}

/**
* Data time period string
* @ Param time
* @ Param FMT
* @ Return
*/
Public static string inttimetostr (INT time, string FMT ){
Return datetostring (stringtodate (string. Format ("% 06d", time), time_pattern_default), FMT );
}

/**
* Data time duration string, which is in the format of hhmmss
* @ Param time
* @ Return
*/
Public static string inttimetostr (INT time ){
Return inttimetostr (time, time_pattern_default );
}


/**
* Get the system time
* @ Return date
*/
Public static date getsysdate (){
Return calendar. getinstance (). gettime ();
}

/**
* Get yesterday
* @ Return
*/
Public static date getyesterday (){
Calendar Cal = calendar. getinstance ();
Cal. Add (calendar. Date,-1 );
Return Cal. gettime ();
}

/**
* Get tomorrow (the next day)
* @ Return
*/
Public static date gettomorrow (){
Calendar Cal = calendar. getinstance ();
Cal. Add (calendar. Date, + 1 );
Return Cal. gettime ();
}

/**
* Add date month
* @ Param DT time
* @ Param amount add month
* @ Return date
*/
Public static date addmonth (date DT, int amount ){
Calendar Cal = calendar. getinstance ();
Cal. settime (DT );
Cal. Add (calendar. Month, amount );
Return Cal. gettime ();
}

/**
* Increase the number of days
* @ Param DT time
* @ Param amount: Increase the number of days
* @ Return date
*/
Public static date adddate (date DT, int amount ){
Calendar Cal = calendar. getinstance ();
Cal. settime (DT );
Cal. Add (calendar. day_of_month, amount );
Return Cal. gettime ();
}

/**
* Increase the score.
* @ Param DT time
* @ Param amount: Increase the score.
* @ Return
*/
Public static date addminute (date DT, int amount ){
Calendar Cal = calendar. getinstance ();
Cal. settime (DT );
Cal. Add (calendar. Minute, amount );
Return Cal. gettime ();
}

/**
* Computing time gap
* @ Param sdate Start Time
* @ Param edate End Time
* @ Return
*/
Public static long totalsec (date sdate, date edate ){
Long stime = sdate. gettime ();
Long etime = edate. gettime ();
Long Total = etime-stime;
Return total;
}

/**
* Check the validity period of your credit card.
* [V1> V2, with a return value greater than 0],
* [V1 = V2, return to limit 0],
* [V1 <V2, with a return value smaller than 0]
* @ Param V1
* @ Param v2
* @ Return
*/
Public static int comparevaildyearmonth (string V1, string V2 ){
String v1ym = v1.substring (2) + v1.substring (0, 2 );
String v2ym = v2.substring (2) + v2.substring (0, 2 );
Return v1ym. compareto (v2ym );
}

/**
* When your credit card has expired, mmyy has been converted to yyyymm.
* @ Param mmyy
* @ Return yyymm
*/
Public static string convertcardtvalidyearmonth (string mmyy ){
Try {
// Data
Integer. parseint (mmyy );
// Updated by year
String sysyear = dateutils. datetostring (getsysdate (), "YYYY ");
String result = sysyear. substring (0, 2)
+ Mmyy. substring (2)
+ Mmyy. substring (0, 2 );
Return result;
} Catch (exception e ){
Logger.info (E. getmessage (), e );
Return NULL;
}

}

/**
* Year of the western yuan string: Year of the Democratic Republic of China
* @ Param datestr
* @ Return
*/
Public static string datestrtoroc (string datestr ){
Try {
Date = dateutils. stringtodate (datestr );
Int dateint = dateutils. datetoint (date );
Return string. valueof (dateint-19110000 );
} Catch (exception e ){
Logger.info (E. getmessage (), e );
Return NULL;
}

}

/**
* The year string of the nation: the year string of the West dollar
* @ Param datestr
* @ Return
*/
Public static string roctodatestr (string rocstr ){
Try {
Int dateint = integer. parseint (rocstr) + 19110000;
Return string. valueof (dateint );
} Catch (exception e ){
Logger.info (E. getmessage (), e );
Return NULL;
}

}

/**
* Estimated remaining time
* @ Param limitdate End Time
* @ Param currentdate: The next time
* @ Return long [] Return callback [index: 0] Minutes, [index: 1] seconds
*/
Public static long [] getverifyremaintime (date limitdate, date currentdate ){
Long [] result = new long [] {0l, 0l };
Long totalmsec = limitdate. gettime ()-currentdate. gettime ();
Long totalsec = (New bigdecimal (totalmsec). Divide (New bigdecimal (1000), 0, bigdecimal. round_half_up). longvalue ();
System. Out. println (totalsec );
Result [0] = totalsec/60l;
Result [1] = totalsec % 60l;
Return result;
}

/**
* Date of Birth: The × day of the year
* @ Param currentdate
* @ Return
*/
Public static int getcalandaday (date currentdate ){
Calendar Cal = calendar. getinstance ();
Cal. settime (currentdate );
Return Cal. Get (calendar. day_of_year );
}

/**
* Obtain the string date of the west dollar of the system, EX: 20120101
*
* @ Param sign
* @ Return
*/
Public static string getsystemdate (){
Date = new date ();
Dateformat format = new simpledateformat ("YYYY" + "mm" + "DD"); // + "hh" + "mm" + "SS"
Return format. Format (date );
}
/**
* Time used to obtain the string of the West dollar of the system, EX: 171020
*
* @ Param sign
* @ Return
*/
Public static string getsystemtime (){
Calendar Cal = calendar. getinstance ();
String hours = "0" + String. valueof (Cal. Get (calendar. hour_of_day ));
String minute = "0" + String. valueof (Cal. Get (calendar. Minute ));
String second = "0" + String. valueof (Cal. Get (calendar. Second ));
String required IME = hours. substring (hours. length ()-2) + minute. substring (Minute. length ()-2) + second. substring (second. length ()-2 );
Return required IME;
}
Public static void main (string [] ARGs ){
Try {
Date senddate = dateutils. inttodate (20121101,172 440 );
Date afert5mdate = dateutils. addminute (senddate, 5 );
System. Out. println (afert5mdate );
Date sysdate = dateutils. getsysdate ();
System. Out. println (sysdate );
If (sysdate. Before (afert5mdate )){
Long [] times = dateutils. getverifyremaintime (afert5mdate, sysdate );
Throw appexception. getvalidateerr ("idx1023", new string [] {string. valueof (Times [0]), String. valueof (Times [1])});
}
} Catch (exception e ){
System. Out. println (E. getmessage ());
}

}
}

Time and String Conversion, date/string