import java.io.*; import javax.servlet.*; import javax.servlet.http.*; import java.util.Calendar; public class MonthView2 extends HttpServlet{ public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException{ res.setContentType("text/html;charset=Shift_Jis"); PrintWriter out = res.getWriter(); int[] calendarDay; int count; calendarDay = new int[42]; /* 最大で7日×6週 */ count = 0; StringBuffer sb = new StringBuffer(); sb.append(""); sb.append(""); sb.append(""); sb.append(""); sb.append("スケジュール管理"); sb.append(""); sb.append(""); sb.append(""); Calendar calendar = Calendar.getInstance(); int year = calendar.get(Calendar.YEAR); int month = calendar.get(Calendar.MONTH); int day = calendar.get(Calendar.DATE); /* 日付データを配列に格納 */ count = setDateArray(year, month, day, calendarDay, count); sb.append("

" + year + "年" + (month + 1) + "月

"); sb.append(""); sb.append(""); int weekCount = count / 7; for (int i = 0 ; i < weekCount ; i++){ sb.append(""); for (int j = i * 7 ; j < i * 7 + 7 ; j++){ if (calendarDay[j] > 35){ sb.append(""); } sb.append(""); sb.append(createScheduleStr()); } sb.append("
"); sb.append(calendarDay[j] - 35); }else{ sb.append(""); sb.append(calendarDay[j]); } sb.append("
"); sb.append(""); sb.append(""); out.println(new String(sb)); } protected String createScheduleStr(){ StringBuffer sb = new StringBuffer(); sb.append(""); for (int i = 0 ; i < 7 ; i++){ sb.append(""); } sb.append(""); return (new String(sb)); } protected int setDateArray(int year, int month, int day, int[] calendarDay, int count){ Calendar calendar = Calendar.getInstance(); /* 今月が何曜日から開始されているか確認する */ calendar.set(year, month, 1); int startWeek = calendar.get(Calendar.DAY_OF_WEEK); System.out.println("今月の曜日は" + startWeek + "から"); /* 先月が何日までだったかを確認する */ calendar.set(year, month, 0); int beforeMonthlastDay = calendar.get(Calendar.DATE); System.out.println("先月は" + beforeMonthlastDay + "日まで"); /* 今月が何日までかを確認する */ calendar.set(year, month + 1, 0); int thisMonthlastDay = calendar.get(Calendar.DATE); System.out.println("今月は" + thisMonthlastDay + "日まで\r\n"); /* 先月分の日付を格納する */ for (int i = startWeek - 2 ; i >= 0 ; i--){ calendarDay[count++] = beforeMonthlastDay - i + 35; } /* 今月分の日付を格納する */ for (int i = 1 ; i <= thisMonthlastDay ; i++){ calendarDay[count++] = i; } /* 翌月分の日付を格納する */ int nextMonthDay = 1; while (count % 7 != 0){ calendarDay[count++] = 35 + nextMonthDay++; } return count; } }