javaeeweb应用程序的当前日期有几天不确定
我有一个web应用程序(JavaEE、Struts1.1、JSP、Tomcat5.5.20、WebLogic、Oracle)运行在Red Hat的Linux服务器上。有时,web应用程序的当前日期会“掉出来”。例如: 2013年1月31日改为:1994年1月12日 因此,由于日期的更改,用户在某些页面上提交按钮时遇到问题。当我重新启动tomcat并出现Web应用程序时,问题就解决了。这个问题有时会在一天内重复出现,并困扰我。 问题是什么?如何解决? 请帮帮我 代码jsp文件是:javaeeweb应用程序的当前日期有几天不确定,java,jakarta-ee,oracle10g,struts-1,tomcat5.5,Java,Jakarta Ee,Oracle10g,Struts 1,Tomcat5.5,我有一个web应用程序(JavaEE、Struts1.1、JSP、Tomcat5.5.20、WebLogic、Oracle)运行在Red Hat的Linux服务器上。有时,web应用程序的当前日期会“掉出来”。例如: 2013年1月31日改为:1994年1月12日 因此,由于日期的更改,用户在某些页面上提交按钮时遇到问题。当我重新启动tomcat并出现Web应用程序时,问题就解决了。这个问题有时会在一天内重复出现,并困扰我。 问题是什么?如何解决? 请帮帮我 代码jsp文件是:
<TD ALIGN="center" width="35%"><P CLASS="SmallBlackRemark"><font class="RedColor"><b><%=DateUtil.stringDayMountYear()%></b></font></P></TD>
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());
}
}
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";
}
...
ShamsiCalendar的java文件:
<TD ALIGN="center" width="35%"><P CLASS="SmallBlackRemark"><font class="RedColor"><b><%=DateUtil.stringDayMountYear()%></b></font></P></TD>
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());
}
}
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";
}
...
FDate的java文件:
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());
}
下面是我如何处理这个问题的: 似乎您的FDate(long)构造函数偶尔会返回错误的日期。要确认或否认这一点,我会在设置完internalDate和internalShamsiDate之后,将它们发送到日志文件或标准输出,并尝试复制错误。当你重现这个bug时,看看这两个值是否是你所期望的 如果他们不是,那么你知道你的问题就存在于ShamsiCalendar.miladiToShamsi(日期)的某个地方。如果它们看起来不错,它就住在别处
我肯定会仔细看看ShamsiCalendar中的日期处理方法。它们似乎都将字符串作为输入,因此我假设代码正在处理字符串以获取所需的信息。这种方法天生容易出错;如果有一些字符串无法正确处理,或者Shamsicallendar.miladiToShamsi偶尔生成的输出与这些方法所期望的略有不同,我一点也不会感到惊讶。用提供的信息无法回答这个问题。您没有提到日期提供的位置/方式,这是除了服务器出现问题之外的唯一其他原因。我在myWebapps中使用的日期是一个包含以下内容的java文件(import java.util.*;import java.text.simpleDataFormat;import java.text.ParsePosition)这并不能描述你是如何得到数据的。更好地订阅时间服务来同步服务器时间和宇宙。考虑使用JoDaTi而不是FDATE。看来FDate有问题)tnx!为什么要击倒和击倒雄猫,这个问题有时会得到解决?我真的不知道;它可能会清除损坏的数据?我也不知道为什么这么多年来它一直运作顺利,但现在却变得愚蠢。也许是最近的日期触发了我怀疑可能存在的字符串处理问题?我详细研究了这些方法。因此,它与服务器的时间无关。好吗?等等。“服务器。”如中所示,多个服务器?这是否在多服务器群集上运行?如果是这样,您是否已确保所有服务器都设置为正确的日期?服务器上的oracle数据库,以及另一台服务器上的webapps、earfile。我不检查服务器的时间。是否有可能服务器的时间不一致?(此外,我关闭并启动了两台服务器,因此出现了此问题)