import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.Calendar;
import java.sql.*;
public class MonthView7 extends HttpServlet{
protected Connection conn = null;
public void init() throws ServletException{
String url = "jdbc:mysql://localhost/servletschedule";
String user = "scheduleuser";
String password = "schedulepass";
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
conn = DriverManager.getConnection(url, user, password);
}catch (ClassNotFoundException e){
log("ClassNotFoundException:" + e.getMessage());
}catch (SQLException e){
log("SQLException:" + e.getMessage());
}catch (Exception e){
log("Exception:" + e.getMessage());
}
}
public void destory(){
try{
if (conn != null){
conn.close();
}
}catch (SQLException e){
log("SQLException:" + e.getMessage());
}
}
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;
int year;
int month;
int day = 1;
calendarDay = new int[42]; /* 最大で7日×6週 */
count = 0;
String param = req.getParameter("YEAR");
if (param == null || param.length() == 0){
year = -999;
}else{
try{
year = Integer.parseInt(param);
}catch (NumberFormatException e){
year = -999;
}
}
param = req.getParameter("MONTH");
if (param == null || param.length() == 0){
month = -999;
}else{
try{
month = Integer.parseInt(param);
}catch (NumberFormatException e){
month = -999;
}
}
/* パラメータが指定されていない場合は本日の日付を設定 */
if (year == -999 || month == -999){
Calendar calendar = Calendar.getInstance();
year = calendar.get(Calendar.YEAR);
month = calendar.get(Calendar.MONTH);
day = calendar.get(Calendar.DATE);
}else{
if (month == 12){
month = 0;
year++;
}
if (month == -1){
month = 11;
year--;
}
}
/* ユーザー情報を取り出す */
HttpSession session = req.getSession(false);
String username = (String)session.getAttribute("username");
String tmpuserid = (String)session.getAttribute("userid");
int userid = 0;
if (tmpuserid != null){
userid = Integer.parseInt(tmpuserid);
}
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("");
sb.append("");
sb.append(username);
sb.append("さんのスケジュールです");
sb.append("
");
/* 日付データを配列に格納 */
count = setDateArray(year, month, day, calendarDay, count);
/* 年月のリンク作成 */
sb.append(createMonthLink(year, month));
sb.append("");
sb.append("| 日 | 月 | 火 | 水 | 木 | 金 | 土 |
");
int weekCount = count / 7;
for (int i = 0 ; i < weekCount ; i++){
/* スケジュールの日付画面を作成する */
sb.append("");
for (int j = i * 7 ; j < i * 7 + 7 ; j++){
if (calendarDay[j] > 35){
sb.append("| ");
sb.append(calendarDay[j] - 35);
}else{
sb.append(" | ");
sb.append(calendarDay[j]);
}
sb.append(" | ");
}
sb.append("
");
/* カレンダーのスケジュール登録画面を作成する */
sb.append(createScheduleStr(year, month, i * 7, calendarDay, userid));
}
sb.append("
");
sb.append("");
sb.append("");
out.println(new String(sb));
}
/* スケジュール登録へのリンクを設定する */
protected String createScheduleStr(int year, int month, int startDayNo, int[] calendarDay, int userid){
StringBuffer sb = new StringBuffer();
sb.append("");
for (int i = startDayNo ; i < startDayNo + 7 ; i++){
if (calendarDay[i] > 35){
/* 前月及び翌月の箇所にはアイコンは表示しない */
sb.append(" | ");
}else{
sb.append("");
sb.append("");
sb.append("![](\"./img/memo.png\") ");
sb.append("
");
/* スケジュールの表示 */
sb.append("");
try {
String sql = "SELECT * FROM schedule WHERE userid = ? and scheduledate = ? ORDER BY starttime";
PreparedStatement pstmt = conn.prepareStatement(sql);
String startDateStr = year + "-" + (month + 1) + "-" + calendarDay[i];
pstmt.setInt(1, userid);
pstmt.setString(2, startDateStr);
ResultSet rs = pstmt.executeQuery();
while(rs.next()){
int id = rs.getInt("id");
String starttime = rs.getString("starttime");
String endtime = rs.getString("endtime");
String schedule = rs.getString("schedule");
if (starttime == null || endtime == null){
sb.append("* ");
}else{
sb.append(starttime.substring(0, 5));
sb.append("-");
sb.append(endtime.substring(0, 5));
sb.append(" ");
}
sb.append("");
sb.append(schedule);
sb.append("
");
}
rs.close();
pstmt.close();
}catch (SQLException e){
log("SQLException:" + e.getMessage());
}
sb.append("");
sb.append(" | ");
}
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;
}
protected String createMonthLink(int year, int month){
StringBuffer sb = new StringBuffer();
sb.append("");
sb.append("前月 ");
sb.append(year);
sb.append("年");
sb.append(month + 1);
sb.append("月 ");
sb.append("翌月");
sb.append("
");
return (new String(sb));
}
}