Conversion of the tool class time format for Java date operations

Package cn.itcast.oa.util;

Import java.text.ParseException;
Import Java.text.SimpleDateFormat;
Import Java.util.Calendar;
Import Java.util.Date;

Import javax.xml.datatype.DatatypeConfigurationException;
Import Javax.xml.datatype.DatatypeFactory;
Import Javax.xml.datatype.XMLGregorianCalendar;

public class Dateutils {
/**
* Converts the specified string to a date
*
* @param date
* String Date strings
* @param datepattern
* String Date format
* @return Date
*/
public static Java.util.Date Getformatdate (String Date, String datepattern) {
SimpleDateFormat sd = new SimpleDateFormat (Datepattern);
return Sd.parse (date, new Java.text.ParsePosition (0));
}


/**
* Converts a specified Date object to a formatted string
*
* @param date
* Date XML Dates Object
* @param datepattern
* String Date format
* @return String
*/
public static string getformattedstring (date date, string datepattern) {
SimpleDateFormat sd = new SimpleDateFormat (Datepattern);

return Sd.format (date);
}

/**
* Converts the specified XML Date object into a formatted string
*
* @param xmldate
* Date XML Dates Object
* @param datepattern
* String Date format
* @return String
*/
public static String getformattedstring (Xmlgregoriancalendar xmldate,
String Datepattern) {
SimpleDateFormat sd = new SimpleDateFormat (Datepattern);

Calendar calendar = Xmldate.togregoriancalendar ();

Return Sd.format (Calendar.gettime ());
}

/**
* Converts the specified XML Date object into a Date object
*
* @param xmldate
* Date XML Dates Object
* @param datepattern
* String Date format
* @return Date
*/
public static Date xmlgregoriancalendar2date (Xmlgregoriancalendar xmldate) {
Return Xmldate.togregoriancalendar (). GetTime ();
}

public static String Getthisyear () {
Get Current date
Calendar cldcurrent = Calendar.getinstance ();
Acquired date
String stryear = string.valueof (Cldcurrent.get (calendar.year));
return stryear;
}

public static Xmlgregoriancalendar Convert2xmlcalendar (Calendar calendar) {
try {
Datatypefactory DTF = Datatypefactory.newinstance ();
Return Dtf.newxmlgregoriancalendar (
Calendar.get (Calendar.year),
Calendar.get (calendar.month) +1,
Calendar.get (Calendar.day_of_month),
Calendar.get (Calendar.hour),
Calendar.get (Calendar.minute),
Calendar.get (Calendar.second),
Calendar.get (Calendar.millisecond),
Calendar.get (Calendar.zone_offset)/(1000*60));

} catch (Datatypeconfigurationexception e) {
E.printstacktrace ();
return null;
}
}

Get the time of day
public static Java.sql.Timestamp Getnowtime (String dateformat) {
Date now = new Date ();
SimpleDateFormat DateFormat = new SimpleDateFormat (DateFormat);//You can easily modify the date format
String datestring = Dateformat.format (now);
SimpleDateFormat sd = new SimpleDateFormat (DateFormat);
Date dateformt = Sd.parse (datestring, New java.text.ParsePosition (0));
Java.sql.Timestamp dateTime = new Java.sql.Timestamp (dateformt
. GetTime ());

return dateTime;
return hehe;
}

Gets the specified time
public static Java.sql.Timestamp Getnownewtime (String date,string dateformat) {
Date now = new Date ();
SimpleDateFormat DateFormat = new SimpleDateFormat (DateFormat);//You can easily modify the date format
Dateformat.parse (date, new Java.text.ParsePosition (0));

String datestring= Dateformat.format (date);
Date dateformt= dateformat.parse (date, new Java.text.ParsePosition (0));
Java.sql.Timestamp dateTime = new Java.sql.Timestamp (Dateformt.gettime ());


return dateTime;
return hehe;
}
/**
* @param contains yyyy-mm-dd ' T ' hh:mm:ss. Time conversion in SSS format.
* @return
*/
public static string Gettformatstring (String tdate) {
SimpleDateFormat format1 = new SimpleDateFormat ("Yyyy-mm-dd ' T ' HH:mm:ss. SSS ");
String str = "";
try {
Java.util.Date Date = Format1.parse (tdate);
SimpleDateFormat format2 = new SimpleDateFormat ("Yyyy-mm-dd HH:mm:ss");
str = Format2.format (date);
} catch (ParseException e) {
E.printstacktrace ();
}
return str;
}

public static void Main (string[] args) {
SimpleDateFormat sd = new SimpleDateFormat ("YyyyMMdd");
String date = "20110202";
System.out.println (Sd.parse (date, new Java.text.ParsePosition (0)));
System.out.println (Getbefore2hourdate ());
}
Gets the time 2 hours before the current time.
public static String Getbefore2hourdate () {
SimpleDateFormat df=new SimpleDateFormat ("Yyyy-mm-dd ' T ' HH:mm:ss");
Calendar C = calendar.getinstance ();
C.add (Calendar.hour_of_day,-2); The current time plus 3 hours
Return Df.format (C.gettime ());

}

/**
*
* @param time1 Current time
* @param time2 comparison time
* @return If time1 is larger than time2 minutes, it returns true;
*/
public static Boolean comparedatetime (date time1, date time2, int gap) {
Return Time1.gettime ()-time2.gettime () > Gap * 60 * 1000;
}
}

Conversion of the tool class time format for Java date operations