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insertnewhotel.jsp
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insertnewhotel.jsp
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<%@ page contentType="text/html; charset=UTF-8" %>
<%@ page import = "java.io.*,java.util.*,java.sql.*"%>
<%@ page import = "javax.servlet.http.*,javax.servlet.*" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix = "c"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/sql" prefix = "sql"%>
<!DOCTYPE html>
<html>
<head>
<title>eHotels</title>
<link rel="stylesheet" type="text/css" href="css/ehotels.css">
<link rel="stylesheet" type="text/css" href="css/buttons.css" />
</head>
<body>
<ul class="navmenu">
<li><a href=".">Home</a></li>
<li><a href="managerdb.html" class="active-nav">Manager Mode</a></li>
<li><a href="customerdb.html" >Customer Mode</a></li>
<li><a href="aboutdb.html">About</a></li>
<li><a href="addroom.jsp">Back</a></li>
<li><img class="logo" src="images/logo.png"></li>
</ul>
<%
Class.forName("com.mysql.jdbc.Driver");
String url1 ="jdbc:mysql://localhost/ehotels?useSSL=false&useUnicode=true&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC";
String insert1 = "SELECT COUNT(Hotel_Group_ID) FROM Hotel_Group WHERE Hotel_Group_ID=";
int flag1=0;
int counter1 = 0;
Connection conn1 = DriverManager.getConnection(url1,"ehotels", "abcd");
Statement stmt1 = conn1.createStatement();
String Hotel_Group_ID1 = request.getParameter("hotel_group");
if(Hotel_Group_ID1.length() <= 6){
insert1 = insert1 +Hotel_Group_ID1 ;
ResultSet rs1 = stmt1.executeQuery(insert1);
if(rs1.next()){
if(rs1.getString("COUNT(Hotel_Group_ID)").equals("0")) {
response.sendRedirect("error.html");
}
else{
insert1 = "SELECT COUNT(Hotel_ID) FROM Hotels WHERE Hotel_ID=";
String Hotel_ID1 = request.getParameter("hotel_id");
if(Hotel_ID1.length() <= 6){
insert1 = insert1 +Hotel_ID1 ;
rs1 = stmt1.executeQuery(insert1);
if(rs1.next()){
if(rs1.getString("COUNT(Hotel_ID)").equals("1")) {
//mi egkiro Hotel_ID afou iparxei idi!!
response.sendRedirect("error.html");
}
else{
Class.forName("com.mysql.jdbc.Driver");
String url ="jdbc:mysql://localhost/ehotels?useSSL=false&useUnicode=true&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC";
String insert = "INSERT INTO Hotels";
String attr = "";
String val = "";
Connection conn = DriverManager.getConnection(url,"ehotels", "abcd");
Statement stmt = conn.createStatement();
String Hotel_Group_ID = request.getParameter("hotel_group");
String Hotel_ID = request.getParameter("hotel_id");
String City = request.getParameter("city");
String Street = request.getParameter("street");
String Number = request.getParameter("number");
String Postal_Code = request.getParameter("postal_code");
String Number_Of_Rooms = request.getParameter("number-of-rooms");
String Stars = request.getParameter("stars");
String Phone_Number = request.getParameter("phone_number");
String Email = request.getParameter("email");
attr = attr + " (Hotel_ID";
val = val + "(\'" + Hotel_ID + "\'";
if(City.length() <= 30){
attr = attr + ",City";
val = val + ",\'" + City + "\'";
}
if(Street.length() <= 25){
attr = attr + ",Street";
val = val + ",\'" + Street + "\'";
}
if(Number.equals("")){
attr = attr + ",Number";
val = val + "," + "NULL" ;
}
else if(Number.length() <= 3){
attr = attr + ",Number";
val = val + ",\'" + Number + "\'";
}
if (Postal_Code.equals("")){
attr = attr + ",Postal_Code";
val = val + ",NULL" ;
}
else if(Postal_Code.length() <= 5 ){
attr = attr + "Postal_Code";
val = val + "," + Postal_Code ;
}
if(Number_Of_Rooms.length() <= 3 ){
attr = attr + ",Number_Of_Rooms";
val = val + ",\'" + Number_Of_Rooms + "\'";
}
if (Stars.equals("")){
attr = attr + ",Stars";
val = val + ",NULL" ;
}
else if(Stars.length() <= 1 ){
attr = attr + ",Stars";
val = val + "," + Stars ;
}
if(Phone_Number.length() <= 55 ){
attr = attr + ",Phone_Number";
val = val + ",\'" + Phone_Number + "\'";
}
if(Email.length() <= 50 ){
attr = attr + ",Email";
val = val + ",\'" + Email + "\'";
}
String query = "";
if(!val.equals("")){
query = insert + attr + ")" + " VALUES " + val + ");";
}
PreparedStatement prpstmt = conn.prepareStatement(query);
int i = prpstmt.executeUpdate(query);
String query3 = "INSERT INTO Has_Hotels (Hotel_Group_ID,Hotel_ID) VALUES ("+Hotel_Group_ID+","+Hotel_ID+")" ;
PreparedStatement prpstmt3 = conn.prepareStatement(query3);
int i3 = prpstmt3.executeUpdate(query3);
int num_of_hotels=0;
String query2 = "SELECT * From Hotel_Group Where Hotel_Group_ID="+Hotel_Group_ID;
Connection conn2 = DriverManager.getConnection(url,"ehotels", "abcd");
Statement stmt2 = conn2.createStatement();
ResultSet rs2 = stmt2.executeQuery(query2);
if(rs2.next()){
num_of_hotels= rs2.getInt("Number_Of_Hotels")+1;
}
query3 = "UPDATE Hotel_Group SET Number_Of_Hotels=\'"+num_of_hotels+"\'" +" WHERE Hotel_Group_ID=\'"+Hotel_Group_ID+"\'" ;
prpstmt3 = conn.prepareStatement(query3);
i3 = prpstmt3.executeUpdate(query3);
String query4="INSERT INTO Hotel_Room (Hotel_ID,Price) VALUES ("+Hotel_ID+",0)";
String max_Room_ID="";
String query5 = "SELECT MAX(Room_ID) From Hotel_Room";
String query6 = "";
stmt2 = conn2.createStatement();
for (int j=1;j<=Integer.parseInt(Number_Of_Rooms);j++ ) {
prpstmt3 = conn.prepareStatement(query4);
i3 = prpstmt3.executeUpdate(query4);
rs2 = stmt2.executeQuery(query5);
if(rs2.next()){
max_Room_ID = rs2.getString("MAX(Room_ID)");
}
query6="INSERT INTO Has_Room (Hotel_ID,Room_ID) VALUES ("+Hotel_ID+","+max_Room_ID+")" ;
prpstmt3 = conn.prepareStatement(query6);
i3 = prpstmt3.executeUpdate(query6);
}
response.sendRedirect("managerdb.html");
}
}
}
else{//mi egkiro Hotel_ID pairnaei ta 6 grammata
response.sendRedirect("error.html");
}
}
}
}
else {//mi egkiro Hotel_Group_ID pairnaei ta 6 grammata
response.sendRedirect("error.html");
}
%>
</body>
</html>