一个JSP+JAVABEANS实现的WEB日历程序,主要使用了Calendar类! monthBean.java package test; import java.text.DateFormat; import java.text.DateFormatSymbols; import java.util.*; public class monthBean { public final static int[]DAYSINMONTH={31,28,31,30,31,30,31,31,30,31,30,31}; public String []monthNames=null; protected DateFormatSymbols symbols=null; protected Calendar cal=Calendar.getInstance(); protected int today=cal.get(Calendar.DAY_OF_MONTH); protected int month=cal.get(Calendar.MONTH); protected int year=cal.get(Calendar.YEAR); public monthBean() { symbols=new DateFormatSymbols(); monthNames=symbols.getMonths(); } public void setMonth(int monthArg){ this.month=monthArg; } public void setYear(int yearArg) { this.year=yearArg; } public void setMonth(String monthArg) { try{ int month=Integer.parseInt(monthArg); setMonth(month); }catch(Exception exc){ } } public void setYear(String yearArg){ try{ int year=Integer.parseInt(yearArg); setYear(year); }catch(Exception exc){ } } public String getMonthName() { return monthNames[cal.get(Calendar.MONTH)]; } public int getToday(){ return today; } public int getStartCell() { Calendar beginOfMonth=Calendar.getInstance(); beginOfMonth.set(year,month,0); return beginOfMonth.get(Calendar.DAY_OF_WEEK); } public int getEndCell() { cal.set(year,month,1); int endCell=DAYSINMONTH[month]+getStartCell()-1; if(month==Calendar.FEBRUARY && ((GregorianCalendar)cal).isLeapYear(year)){ endCell++; } return endCell; } public void update() { cal.set(this.year,this.month,1); } public String getDayName(int day,boolean longFormat) { if(longFormat) return symbols.getWeekdays()[day]; return symbols.getShortWeekdays()[day]; } } month.jsp <%@ page contentType="text/html;charset=gb2312" %> <%@ page import="test.monthBean"%> <% int today=cal.getToday(); %> 日历
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