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POthe current date of Java EE web application falls out on some days
 

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  1. POthe current date of Java EE web application falls out on some days
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    <p>I have a web application(Java EE, Struts 1.1, JSP, Tomcat 5.5.20, WebLogic, Oracle) running on a Linux sever from Red Hat. Some days, the current date of web apps "falls out". For example:</p> <p>31 January 2013 is changed to: 12 January 1994 So the user has a problem to submit the button on some pages because of the changes of the date.when I restart the tomcat and the webapps comes up,the problem is solved.this problem repeat sometimes on a day and bothers me. what is the problem and how to solve it? Please help me!</p> <p><strong>code jsp file is:</strong></p> <pre><code> &lt;TD ALIGN="center" width="35%"&gt;&lt;P CLASS="SmallBlackRemark"&gt;&lt;font class="RedColor"&gt;&lt;b&gt;&lt;%=DateUtil.stringDayMountYear()%&gt;&lt;/b&gt;&lt;/font&gt;&lt;/P&gt;&lt;/TD&gt; </code></pre> <p><strong>the java file of DateUtil is:</strong></p> <pre><code> import java.util.*; import java.text.SimpleDateFormat; import java.text.ParsePosition; import com.fdate.*; public class DateUtil{ public static String getCurrentDate() { FDate curDate = new FDate(System.currentTimeMillis()); return curDate.toString(); } public static String getCurrentTime() { FDate curDate = new FDate(System.currentTimeMillis()); String time = curDate.getHour() + ":"+curDate.getMinute()+":"+curDate.getSecond(); return time; } public static int getCurrentYear() { FDate curDate = new FDate(System.currentTimeMillis()); return curDate.getYear(); } public static int getCurrentMonth() { FDate curDate = new FDate(System.currentTimeMillis()); return curDate.getMonth(); } public static int getCurrentDay() { FDate curDate = new FDate(System.currentTimeMillis()); return curDate.getDate(); } //reverse the order of dd and yyyy in a farsi date string just for fixing farsi presentation problem //suppose that input date is in the form of yyyy/mm/dd //the output would be as dd/mm/yyyy public static String stringDayMountYear(){ return ShamsiCalendar.weekDayName(ShamsiCalendar.dayOfWeek(DateUtil.getCurrentDate()))+ " "+ ShamsiCalendar.monthDayName(DateUtil.getCurrentDay())+ ShamsiCalendar.monthName(DateUtil.getCurrentMonth()) +"" + String.valueOf(DateUtil.getCurrentYear()); } } </code></pre> <p><strong>the java file of ShamsiCalendar:</strong></p> <pre><code> package com.fdate; import java.util.*; import java.text.*; public class ShamsiCalendar { protected static final TimeZone DEFAULT_TIMEZONE=TimeZone.getDefault(); protected static final long DAY_MILLIS=1000*60*60*24; protected static final int HOUR_MILLIS=1000*60*60; protected static final int MINUTE_MILLIS=1000*60; protected static final String SH_ORIGIN_DATE="1379/01/01"; protected static final int TIMEZONE_RAW_OFFSET=DEFAULT_TIMEZONE.getRawOffset(); protected static final int TIMEZONE_RAW_OFFSET_HOUR=TIMEZONE_RAW_OFFSET/HOUR_MILLIS; protected static final int TIMEZONE_RAW_OFFSET_MINUTE=(TIMEZONE_RAW_OFFSET-(HOUR_MILLIS*TIMEZONE_RAW_OFFSET_HOUR))/MINUTE_MILLIS; // protected static final Date MI_ORIGIN_DATE=new Date(new GregorianCalendar(2000,Calendar.MARCH,20,0,0,0).getTimeInMillis()); protected static final Date MI_ORIGIN_DATE=new Date(new GregorianCalendar(2000,Calendar.MARCH,20,0,0,0).getTime().getTime()); protected static final int ORIGIN_WEEK_DAY=Calendar.MONDAY; protected static final String STANDARD_FORMAT_PATTERN="yyyy/MM/dd"; public static final int SATURDAY=Calendar.SATURDAY; public static final int SUNDAY=Calendar.SUNDAY; public static final int MONDAY=Calendar.MONDAY; public static final int TUESDAY=Calendar.TUESDAY; public static final int WEDNESDAY=Calendar.WEDNESDAY; public static final int THURSDAY=Calendar.THURSDAY; public static final int FRIDAY=Calendar.FRIDAY; public static final int SHANBEH=Calendar.SATURDAY; public static final int YEKSHANBEH=Calendar.SUNDAY; public static final int DOSHANBEH=Calendar.MONDAY; public static final int SESHANBEH=Calendar.TUESDAY; public static final int CHAHARSHANBEH=Calendar.WEDNESDAY; public static final int PANJSHANBEH=Calendar.THURSDAY; public static final int JOMEH=Calendar.FRIDAY; ... public ShamsiCalendar() { } public static Date sysDate() { return new Date(System.currentTimeMillis()); } public static long millisToDay(long millis ) { return (long)(millis/DAY_MILLIS); } public static long dayToMillis(long day ) { return day*DAY_MILLIS; } public static String weekDayName(int dd,boolean brf) { String ds=new String(""); if(brf) { switch(dd){ case SHANBEH: return SHANBEH_TEXT; case YEKSHANBEH: return SHANBEH_TEXT + " 1"; case DOSHANBEH: return SHANBEH_TEXT + " 2"; case SESHANBEH: return SHANBEH_TEXT + " 3"; case CHAHARSHANBEH: return SHANBEH_TEXT + " 4"; case PANJSHANBEH: return SHANBEH_TEXT + " 5"; case JOMEH: return JOMEH_TEXT; } } else { switch(dd){ case SHANBEH: return SHANBEH_TEXT; case YEKSHANBEH: return YEKSHANBEH_TEXT; case DOSHANBEH: return DOSHANBEH_TEXT; case SESHANBEH: return SESHANBEH_TEXT; case CHAHARSHANBEH: return CHAHARSHANBEH_TEXT; case PANJSHANBEH: return PANJSHANBEH_TEXT; case JOMEH: return JOMEH_TEXT; } } return SHANBEH_TEXT + Integer.toString(dd) +"_E"; } ... </code></pre> <p>the java file of FDate:</p> <pre><code>package com.fdate; import java.util.*; import java.text.*; public class FDate { protected static final long DAY_MILLIS=1000*60*60*24; protected static final int HOUR_MILLIS=1000*60*60; protected static final int MINUTE_MILLIS=1000*60; protected Date internalDate; protected String internalShamsiDate; public FDate(long millis) { set(millis); } public FDate(){ set(); } public FDate(int year, int month, int date) { set(year,month,date); } public FDate(String shDate) { set(shDate); } public String composite(int year , int month , int date){ String ys; String ms; String ds; DecimalFormat df=new DecimalFormat(); df.applyPattern("0000"); ys=df.format(year); df.applyPattern("00"); ms=df.format(month); df.applyPattern("00"); ds=df.format(date); return ys + "/" + ms + "/" + ds; } public int getField(int field){ GregorianCalendar gc=new GregorianCalendar(); gc.setTime(internalDate); return gc.get(field); } public void setField(int field, int newValue){ GregorianCalendar gc=new GregorianCalendar(); gc.setTime(internalDate); gc.set(field,newValue); internalDate=gc.getTime(); } public void set(){ internalDate=new Date(); internalShamsiDate=ShamsiCalendar.miladiToShamsi(internalDate); } public void set(int year, int month, int date) { internalDate=ShamsiCalendar.shamsiToMiladi(composite(year,month,date)); internalShamsiDate=ShamsiCalendar.miladiToShamsi(internalDate); } public void set(String shDate) { internalDate=ShamsiCalendar.shamsiToMiladi(shDate); internalShamsiDate=ShamsiCalendar.miladiToShamsi(internalDate); } public void setTime(int hrs,int min){ setField(Calendar.HOUR_OF_DAY,hrs); setField(Calendar.MINUTE,min); } public void setTime(int hrs,int min,int sec){ setField(Calendar.HOUR_OF_DAY,hrs); setField(Calendar.MINUTE,min); setField(Calendar.SECOND,sec); } public int getHour(){ return getField(Calendar.HOUR_OF_DAY); } public int getMinute(){ return getField(Calendar.MINUTE); } public int getSecond(){ return getField(Calendar.SECOND); } public int getYear(){ return ShamsiCalendar.getYear(ShamsiCalendar.miladiToShamsi(internalDate)); } public int getMonth(){ return ShamsiCalendar.getMonth(ShamsiCalendar.miladiToShamsi(internalDate)); } public int getDate(){ return ShamsiCalendar.getDate(ShamsiCalendar.miladiToShamsi(internalDate)); } public int dayOfWeek(){ return getField(Calendar.DAY_OF_WEEK); } public boolean after(Date when){ return internalDate.after(when); } public boolean after(FDate when){ return internalDate.after(when.get()); } public boolean before(Date when){ return internalDate.before(when); } public boolean before(FDate when){ return internalDate.before(when.get()); } public void nextDay(){ internalDate.setTime(internalDate.getTime()+DAY_MILLIS); internalShamsiDate=ShamsiCalendar.nextDay(internalShamsiDate); } public void prevDay(){ internalDate.setTime(internalDate.getTime()-DAY_MILLIS); internalShamsiDate=ShamsiCalendar.prevDay(internalShamsiDate); } public void nextMonth(){ internalShamsiDate=ShamsiCalendar.nextMonth(internalShamsiDate); internalDate=ShamsiCalendar.shamsiToMiladi(internalShamsiDate); } public void prevMonth(){ internalShamsiDate=ShamsiCalendar.prevMonth(internalShamsiDate); set(ShamsiCalendar.shamsiToMiladi(internalShamsiDate),getHour(),getMinute(),getSecond()); } public void nextYear(){ internalShamsiDate=ShamsiCalendar.nextYear(internalShamsiDate); internalDate=ShamsiCalendar.shamsiToMiladi(internalShamsiDate); } public void prevYear(){ internalShamsiDate=ShamsiCalendar.prevYear(internalShamsiDate); set(ShamsiCalendar.shamsiToMiladi(internalShamsiDate),getHour(),getMinute(),getSecond()); } </code></pre>
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    1. PTQuestion
    1. USArjan Tijms
    1. USZahra Mmajidi
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    1. This table or related slice is empty.
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    1. PO
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    1. This table or related slice is empty.
    1. COThere's no way to answer this with the information provided. You don't mention where/how the date is being provided, which is the only other reason besides something wrong with the server.
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      1. POthe current date of Java EE web application falls out on some days
      1. USDave Newton
    2. COthe date I use in myWebapps is a java file contains(import java.util.*; import java.text.SimpleDateFormat; import java.text.ParsePosition )
      singulars
      1. POthe current date of Java EE web application falls out on some days
      1. USZahra Mmajidi
    3. COThat doesn't describe how you get the date.
      singulars
      1. POthe current date of Java EE web application falls out on some days
      1. USDave Newton
 

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