一個關於日曆的JSP程式！

最後更新：2018-12-03 來源：互聯網

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一個JSP+JAVABEANS實現的WEB行事曆程式，主要使用了Calendar類！
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"%>
<jsp:useBean id="cal" class="test.monthBean" scope="request"/>
<%
   int today=cal.getToday();
%>
<html>
<head>
<title>
日曆
</title>
</head>
<body bgcolor="silver" ><br><br><br>
<table border="1" align="center" width="40%" height="100"><tr bgcolor="silver" >
<td colspan="7"> <font size="+2">
<%=cal.getMonthName()%>
</font></td></tr>
<tr bgcolor="black" align="center">
<% for(int i=1;i<8;i++) {
   out.print("<td width=/"70/">");
   out.print("<font size/"-1/" color=/"white/">");
   out.print(cal.getDayName(i,true));
out.print("</front> </td>");
} %>
</tr>
<% int startcell=cal.getStartCell();
   int endcell=cal.getEndCell();
    for(int cellNo=0,day=1;cellNo<42;cellNo++) {
          if(cellNo%7==0) { out.print("<tr>"); }
    out.print("<td valign=top height=57");
           if(cellNo<startcell||cellNo>endcell) {
               out.print(" bgcolor=/"gray/">"); }
else {
              if(day==today){ //如果為當前日期，背景色設為綠色
                   out.print(" bgcolor=/"green/">");
                        }
              else
                   out.print(">");
%>
<%=day%>
<%
     day++;
}
    out.println("</td>");
            if(cellNo+1%7==0) {
                 out.print("</tr>"); }
    }   //end for loop
%>

</table>

</body>
</html>

本文章原先以中文撰寫並發佈於 aliyun.com，亦設英文版本，僅作資訊用途。本網站不對文章的準確性，完整性或可靠性或其任何翻譯作出任何明示或暗示的陳述或保證。如對該文章有任何疑慮或投訴，請傳送電郵至 info-contact@alibabacloud.com 並提供相關疑慮或投訴的詳細說明。職員會於 5 個工作天內與您聯絡，一經驗證之後，即會刪除該侵權內容。

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