Java Date Processing

Query criteria Date time period is empty if the default setting is the month to tomorrow (0 o'clock), the query is less than tomorrow

String begindate=request.getparameter ("begindate");
String enddate=request.getparameter ("endDate");

if (! Commonmethod.isnull (begindate)) {
Qm.setbegindate (dateutil. Parsestringtodate(begindate, "yyyy-mm-dd"));
}else{
Qm.setbegindate (Dateutil.parsestringtodate (dateutil. Getformatdatestr(New Date (), "yyyy-mm") + " -01", "yyyy-mm-dd");
}
if (! Commonmethod.isnull (endDate)) {
Qm.setenddate (Dateutil.getnextndaydate (dateutil. Parsestringtodate(endDate, "Yyyy-mm-dd"), 1);
}else{
Qm.setenddate (dateutil. Getnextndaydate(New Date (), 1));
}

Use the function:

/**
  * @ Function Description: Transform string to date
  * @param datestr
  * @return
  * @ Create time 2008-7-13
  * @author Administrator
  */
 public static Date parsestringtodate (String datestr, String formate)
   throws Exception {
  try {
   simpledateformat SDF = Getsimpledateformat (formate);
   return Sdf.parse (DATESTR);
  } catch (Exception ex) {
   return null;
  }
 }

/**
  * Get current date
  * @return
  * @throws Exception
  */
 public static Date GetC Urrentdate () throws Exception {
  date currtime = new Date (System.currenttimemillis ());
  return Currtime;
 }
 /**
  * get date n days after date
  * @param date
  * @param day
  * @return
  *
 public Static Date getnextndaydate (date date, int day) {
  calendar c=calendar.getinstance ();
  c.settime (date);
  c.add (Calendar.date, day);
//  long d = date.gettime ();
//  long n = day * 24 * 60 * 60 * 1000;
//  d = d + N;
  return c.gettime ();
 }

/** * @ Function Description: Gets the string in the specified format * @return * @ creation Time 2008-7-26 * @author Beedoor */public static string Getformatdatestr (O   Bject obj, String format) throws Exception {Date d = null;   SimpleDateFormat SDF = getsimpledateformat (format);   if (obj instanceof String) {d = Sdf.parse (Obj.tostring ()); } else if (obj instanceof date) {d = (date) obj;

} if (null! = d) {return Sdf.format (d); }

Return ""; }

Java Date Processing