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jsp常用功能模块
<!-- File name:calendar.jsp -->
<!-- 显示任意年、月的日历，可选择不同的年、月。
author:wildfield -->
<%@ page language="java" import="java.util.*" %>
<%! String year;
String month;
%>
<% month=request.getParameter("month");
year =request.getParameter("year");
%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>日</title>
<script Language="javascript">
<!--
function changeMonth()
{
var mm="calendar.jsp?month="+document.sm.elements[0].selectedIndex+"&year="
+<%=year%>;
window.open(mm,"_self");
}
//--></script>
</head>
<%! String days[]; %>
<%
days=new String[42];
for(int i=0;i<42;i++)
{
days="";
}
%>
<%
Calendar thisMonth=Calendar.getInstance();
if(month!=null&&(!month.equals("null")))
thisMonth.set(Calendar.MONTH, Integer.parseInt(month) );
if(year!=null&&(!year.equals("null")))
thisMonth.set(Calendar.YEAR, Integer.parseInt(year) );
year=String.valueOf(thisMonth.get(Calendar.YEAR));
month=String.valueOf(thisMonth.get(Calendar.MONTH));
thisMonth.setFirstDayOfWeek(Calendar.SUNDAY);
thisMonth.set(Calendar.DAY_OF_MONTH,1);
int firstIndex=thisMonth.get(Calendar.DAY_OF_WEEK)-1;
int maxIndex=thisMonth.getActualMaximum(Calendar.DAY_OF_MONTH);
for(int i=0;i<maxIndex;i++)
{
days[firstIndex+i]=String.valueOf(i+1);
}
%>
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