DeleteCheck2.java
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.Calendar;
import java.sql.*;
public class DeleteCheck2 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 year = -1;
int month = -1;
int day = -1;
int currentscheduleid;
String currentStartTime = "";
String currentEndTime = "";
String currentSchedule = "";
String currentMemo = "";
String param = req.getParameter("ID");
if (param == null || param.length() == 0){
currentscheduleid = -1;
}else{
try{
currentscheduleid = Integer.parseInt(param);
}catch (NumberFormatException e){
currentscheduleid = -1;
}
}
/* パラメータが不正な場合はトップページへリダイレクト */
if (currentscheduleid == -1){
res.sendRedirect("/schedule/top.html");
}
/* 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);
}
try {
String sql = "SELECT * FROM schedule WHERE id = ?";
PreparedStatement pstmt = conn.prepareStatement(sql);
pstmt.setInt(1, currentscheduleid);
ResultSet rs = pstmt.executeQuery();
rs.next();
String scheduledate = rs.getString("scheduledate");
String yearStr = scheduledate.substring(0, 4);
String monthStr = scheduledate.substring(5, 7);
String dayStr = scheduledate.substring(8, 10);
year = Integer.parseInt(yearStr);
month = Integer.parseInt(monthStr) - 1;
day = Integer.parseInt(dayStr);
currentStartTime = rs.getString("starttime");
currentEndTime = rs.getString("endtime");
currentSchedule = rs.getString("schedule");
currentMemo = rs.getString("schedulememo");
rs.close();
pstmt.close();
}catch (SQLException e){
log("SQLException:" + e.getMessage());
}
StringBuffer sb = new StringBuffer();
sb.append("<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.0.1//EN\" \"http://www.w3.org/TR/html4/strict.dtd\">");
sb.append("<html lang=\"ja\">");
sb.append("<head>");
sb.append("<meta http-equiv=\"Content-Type\" Content=\"text/html;charset=Shift_JIS\">");
sb.append("<title>スケジュール削除</title>");
sb.append("<style>");
sb.append("table.sche{border:1px solid #a9a9a9;padding:0px;margin:0px;border-collapse:collapse;}");
sb.append("td{vertical-align:top;margin:0px;padding:2px;font-size:0.75em;height:20px;}");
sb.append("td.top{border-bottom:1px solid #a9a9a9;text-align:center;}");
sb.append("td.time{background-color:#f0f8ff;text-align:right;border-right:1px double #a9a9a9;padding-right:5px;}");
sb.append("td.timeb{background-color:#f0f8ff;border-bottom:1px solid #a9a9a9;border-right:1px double #a9a9a9;}");
sb.append("td.contents{background-color:#ffffff;border-bottom:1px dotted #a9a9a9;}");
sb.append("td.contentsb{background-color:#ffffff;border-bottom:1px solid #a9a9a9;}");
sb.append("td.ex{background-color:#ffebcd;border:1px solid #8b0000;}");
sb.append("table.view{border:1px solid #a9a9a9;padding:0px;margin:0px;border-collapse:collapse;width:250px}");
sb.append("table.view td{border:1px solid #a9a9a9;}");
sb.append("table.view td.left{width:70px;background-color:#f0f8ff;}");
sb.append("img{border:0px;}");
sb.append("p{font-size:0.75em;}");
sb.append("</style>");
sb.append("</head>");
sb.append("<body>");
sb.append("<p>");
sb.append(username);
sb.append("さんのスケジュールです");
sb.append("</p>");
sb.append("<p>");
sb.append("スケジュールの削除確認 ");
sb.append("[<a href=\"/schedule/ScheduleView");
sb.append("?ID=");
sb.append(currentscheduleid);
sb.append("\">スケジュール表示へ戻る</a>]");
sb.append("</p>");
String[] scheduleArray = new String[49];
int[] widthArray = new int[49];
for (int i = 0 ; i < 49 ; i++){
scheduleArray[i] = "";
widthArray[i] = 0;
}
try {
String sql = "SELECT * FROM schedule WHERE userid = ? and scheduledate = ? ORDER BY starttime";
PreparedStatement pstmt = conn.prepareStatement(sql);
String startDateStr = year + "-" + (month + 1) + "-" + day;
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){
widthArray[0] = 1;
StringBuffer sbSchedule = new StringBuffer();
sbSchedule.append("<a href=\"/schedule/ScheduleView?ID=");
sbSchedule.append(id);
sbSchedule.append("\">");
sbSchedule.append(schedule);
sbSchedule.append("</a>");
scheduleArray[0] = scheduleArray[0] + (new String(sbSchedule)) + "<br>";
}else{
String startTimeStr = starttime.substring(0, 2);
String startMinuteStr = starttime.substring(3, 5);
int startTimeNum = Integer.parseInt(startTimeStr);
int index = startTimeNum * 2 + 1;
if (startMinuteStr.equals("30")){
index++;
}
if (widthArray[index] == 0){
/* 既にデータが入っていた場合は異常な状態なので無視する */
String endTimeStr = endtime.substring(0, 2);
String endMinuteStr = endtime.substring(3, 5);
int endTimeNum = Integer.parseInt(endTimeStr);
int width = (endTimeNum - startTimeNum) * 2;
if (startMinuteStr.equals("30")){
width--;
}
if (endMinuteStr.equals("30")){
width++;
}
StringBuffer sbSchedule = new StringBuffer();
sbSchedule.append(startTimeStr);
sbSchedule.append(":");
sbSchedule.append(startMinuteStr);
sbSchedule.append("-");
sbSchedule.append(endTimeStr);
sbSchedule.append(":");
sbSchedule.append(endMinuteStr);
sbSchedule.append(" ");
sbSchedule.append("<a href=\"/schedule/ScheduleView?ID=");
sbSchedule.append(id);
sbSchedule.append("\">");
sbSchedule.append(schedule);
sbSchedule.append("</a>");
scheduleArray[index] = new String(sbSchedule);
widthArray[index] = width;
/* 同じスケジュールの先頭以外の箇所には「-1」を設定 */
for (int i = 1 ; i < width ; i++){
widthArray[index + i] = -1;
}
}
}
}
rs.close();
pstmt.close();
}catch (SQLException e){
log("SQLException:" + e.getMessage());
}
sb.append("<table class=\"view\">");
sb.append("<tr><td class=\"left\">日付</td><td>");
sb.append(year);
sb.append("年");
sb.append(month + 1);
sb.append("月");
sb.append(day);
sb.append("日");
sb.append("</td></tr>");
sb.append("<tr><td class=\"left\">時間</td><td>");
if (currentStartTime == null){
sb.append("未定");
}else{
sb.append(currentStartTime.substring(0, 5));
sb.append(" - ");
sb.append(currentEndTime.substring(0, 5));
}
sb.append("</td></tr>");
sb.append("<tr><td class=\"left\">スケジュール</td><td>");
sb.append(currentSchedule);
sb.append("</td></tr>");
sb.append("<tr><td class=\"left\" style=\"height:150px;\">メモ</td><td>");
currentMemo = currentMemo.replaceAll("\r\n", "<br>");
sb.append(currentMemo);
sb.append("</td></tr>");
sb.append("</table>");
sb.append("<p>スケジュールを削除します。一度削除すると元には戻せません</p>");
sb.append("<p>削除しますか？</p>");
sb.append("<p>");
sb.append("[<a href=\"/schedule/ScheduleDelete?ID=");
sb.append(currentscheduleid);
sb.append("&YEAR=");
sb.append(year);
sb.append("&MONTH=");
sb.append(month);
sb.append("\">削除する</a>]");
sb.append(" ");
sb.append("[<a href=\"/schedule/ScheduleView?ID=");
sb.append(currentscheduleid);
sb.append("\">キャンセル</a>]");
sb.append("</p>");
sb.append("</body>");
sb.append("</html>");
out.println(new String(sb));
}
protected int getMonthLastDay(int year, int month, int day){
Calendar calendar = Calendar.getInstance();
/* 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);
return thisMonthlastDay;
}
}
( Written by Tatsuo Ikura )