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Room_Management.java
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Room_Management.java
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package hotel;
import java.io.*;
import java.io.PrintWriter;
import jakarta.servlet.annotation.WebServlet;
import jakarta.servlet.ServletException;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import java.util.ArrayList;
/**
*
* @author Avik
*/
@WebServlet(name = "Room_Management", urlPatterns = {"/Room_Management"})
public class Room_Management extends HttpServlet
{
static ArrayList std_name=new ArrayList();
static ArrayList std_id=new ArrayList();
static ArrayList std_pwd=new ArrayList();
static ArrayList room=new ArrayList();
String name,id,pwd,room_id,room_type,room_loc,room_price;
static String chng,user;
static int f,n,d,sg,rmchk;
static String err="<html>\n" +
" <head>\n" +
" <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n" +
" <title>Student Login Error Page</title>\n" +
" <link rel=\"stylesheet\" type=\"text/css\" href=\"signup_style.css\"> \n" +
" </head>\n" +
"\n" +
" <body>\n" +
"\n" +
" <script>";
public void sign_up(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
{
res.setContentType("text/html");
PrintWriter pw = res.getWriter();
name = req.getParameter("name");
id= req.getParameter("std_id");
pwd= req.getParameter("pwd");
int chk=0;
for(int i=0;i<std_id.size();i++)
{
if(id.equals(std_id.get(i)))
{
chk=1;
break;
}
}
if(chk==0)
{
sg=1;
pw.println(err);
pw.println("alert(\"Account with this student id created succesfully.\");\n" +
"\n" +
" location.replace(\"login.html\");\n" +
"\n" +
" </script>\n" +
"\n" +
"\n" +
"\n" +
" </body>\n" +
"</html>");
}
else
{
pw.println(err);
pw.println("alert(\"Account with this student id already exists.\");\n" +
"\n" +
" location.replace(\"login.html\");\n" +
"\n" +
" </script>\n" +
"\n" +
"\n" +
"\n" +
" </body>\n" +
"</html>");
}
}
public void student_room(HttpServletRequest req, HttpServletResponse res,String s) throws ServletException, IOException
{
res.setContentType("text/html");
PrintWriter pw = res.getWriter();
pw.println("<html>\n" +
" <head>\n" +
" <title>Student Room Page</title>\n" +
" <link rel=\"stylesheet\" type=\"text/css\" href=\"style.css\"> \n" +
" <link rel=\"stylesheet\" type=\"text/css\" href=\"dropdown.css\">\n" +
" <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n" +
" </head>\n" +
" \n" +
" <body>\n" +
"\n" +
"<div id=\"signup_header\" style=\"line-height: 60px; font-size: 40px; margin-top: 0px; padding-left: 30px; background-color:#af7762 ;\">\n" +
" Student Room Details\n" +
" </div>"+
" <div class=\"navbar\"> \n" +
" <a href=\"home.html\">Home</a> \n" +
" <a href=\"#\"><form action=\"Room_Management\" method=\"POST\"><button type=\"submit\" style=\"color: white; background-color: #333; margin-top: 3px;\" value=\"chk room\" name=\"submit\">Available Room</button> </form></a>\n" +
" <a href=\"#contact\">Contact Us</a> \n" +
" <a href=\"login.html\">Log Out</a> \n" +
" </div> \n" +
" \n" +
" <br> \n" +
" \n" +
"<div id=\"profile\" style=\"width: 100px; height: 80px; margin-top: 15px; margin-left: 5%; border-radius: 25px;\">\n" +
" \n" +
" </div>"+
" <p style=\"color: white; margin-left: 5%;\">User: "+user+
"<br>(Looged In)</p>\n"+
"\n" +
" \n" +
"\n" +
" \n" +
" <table id=\"customers\" style=\"width: 450px; margin-top: 45px; margin-left: 35%; padding-top: 10px; padding-left: 16px; \n" +
" background-color:black; opacity: 0.8;\"> \n" +
" <tr> \n" +
" <th>Id</th> \n" +
" <th>Type</th> \n" +
" <th>Location</th> \n" +
" <th>Price</th> \n" +
" <th>Payment</th>\n" +
" <th>Checked</th>");
for(int i=0;i<room.size();)
{
if(room.get(i+4).equals(s))
{
pw.println(" </tr>\n" +
" <tr>\n" +
" <td>"+room.get(i)+"</td>\n" +
" <td>"+room.get(i+1)+"</td>\n" +
" <td>"+room.get(i+2)+"</td>\n" +
" <td>"+room.get(i+3)+"</td>\n" +
" <td>Not Paid</td>\n" +
" <td><form action=\"Room_Management\" method=\"POST\"><button type=\"submit\" value=\"check out "+room.get(i)+"\" name=\"submit\">Check Out</button></form></td>\n" +
" </tr>\n" +
"\n" +
"\n" );
}
i=i+5;
}
pw.println("</table>\n" +
"\n" +
"\n" +
"\n" +
"\n" +
" </body>\n" +
"</html>");
}
public void login(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
{
res.setContentType("text/html");
PrintWriter pw = res.getWriter();
String id= req.getParameter("std_id");
String pwd= req.getParameter("pwd");
int c=0;
for(int i=0;i<std_id.size();i++)
{
if(id.equals(std_id.get(i)))
{
c=2;
if(pwd.equals(std_pwd.get(i)))
{
c=1;
chng="";
chng="Booked by Id : "+id;
user=id;
student_room(req,res,"Booked by Id : "+id);
}
}
}
if(c==0)
{
pw.println(err);
pw.println("alert(\"Account with this student id does not exists.\");\n" +
"\n" +
" location.replace(\"login.html\");\n" +
"\n" +
" </script>\n" +
"\n" +
"\n" +
"\n" +
" </body>\n" +
"</html>");
}
else if(c==2)
{
pw.println(err);
pw.println("alert(\"Invalid Password.\");\n" +
"\n" +
" location.replace(\"login.html\");\n" +
"\n" +
" </script>\n" +
"\n" +
"\n" +
"\n" +
" </body>\n" +
"</html>");
}
}
public void admin_room(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
{
res.setContentType("text/html");
PrintWriter pw = res.getWriter();
pw.println("<html>\n" +
" <head>\n" +
" \n" +
" <title>Room Control Page</title>\n" +
" <link rel=\"stylesheet\" type=\"text/css\" href=\"style.css\"> \n" +
" <link rel=\"stylesheet\" type=\"text/css\" href=\"dropdown.css\">\n" +
" <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n" +
" </head>\n" +
"\n" +
" <body>\n" +
"\n" +
"\n" +
" <div class=\"navbar\">\n" +
" <a href=\"home.html\">Home</a>\n" +
" <a href=\"insert_room.html\">Insert Room</a>\n" +
" <a href=\"contact.html\">Contact Us</a> \n" +
" <a href=\"admin.html\">Log Out</a>\n" +
" </div>\n" +
" \n" +
" <br>\n" +
"\n" +
" <h1 style=\"margin-left: 40%; Color: black;\">Room Details</h1>\n" +
" \n" +
"\n" +
"\n" +
" <table id=\"customers\" style=\"width: 620px; margin-top: 65px; margin-left: 30%; padding-top: 10px; padding-left: 16px;\n" +
" background-color:black; opacity: 0.8;\">\n" +
" <tr>\n" +
" <th>Id</th>\n" +
" <th>Type</th>\n" +
" <th>Location</th>\n" +
" <th>Price</th>\n" +
" <th>Status</th>\n" +
" <th>Payment</th>\n"+
" <th>Edit</th>\n"+
" <th>Remove</th>\n");
int j=0;
for(int i=0;i<room.size();)
{
pw.println(" </tr>\n" +
" <tr>\n" +
" <td>"+room.get(i)+"</td>\n" +
" <td>"+room.get(i+1)+"</td>\n" +
" <td>"+room.get(i+2)+"</td>\n" +
" <td>"+room.get(i+3)+"</td>\n" +
" <td>"+room.get(i+4)+"</td>\n" +
" <td>Not Paid</td>\n" +
" <td><form action=\"Room_Management\" method=\"POST\"><button type=\"submit\" id=\"ud\" value=\"u"+j+"\" name=\"submit\">Update</button></form></td>\n" +
" <td><form action=\"Room_Management\" method=\"POST\"><button type=\"submit\" id=\"ud\" value=\"d"+j+"\" name=\"submit\">Delete</button></form></td>\n" +
" </tr>\n" +
"\n" +
"\n" );
j++;
i=i+5;
}
pw.println("</table>\n" +
"\n" +
"\n" +
"\n" +
"\n" +
" </body>\n" +
"</html>");
}
public void admin_login(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
{
res.setContentType("text/html");
PrintWriter pw = res.getWriter();
String usr= req.getParameter("usr");
String pwd= req.getParameter("pwd");
if(usr.equalsIgnoreCase("admin"))
{
if(pwd.equals("12345"))
{
admin_room(req,res);
}
else
{
pw.println(err);
pw.println("alert(\"Invalid Password.\");\n" +
"\n" +
" location.replace(\"admin.html\");\n" +
"\n" +
" </script>\n" +
"\n" +
"\n" +
"\n" +
" </body>\n" +
"</html>");
}
}
else
{
pw.println(err);
pw.println("alert(\"Please enter username as admin.\");\n" +
"\n" +
" location.replace(\"admin.html\");\n" +
"\n" +
" </script>\n" +
"\n" +
"\n" +
"\n" +
" </body>\n" +
"</html>");
}
}
public void room_create(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
{
res.setContentType("text/html");
PrintWriter pw = res.getWriter();
room_id = req.getParameter("room_id");
room_type= req.getParameter("room_type");
room_loc= req.getParameter("room_loc");
room_price= req.getParameter("room_price");
int chk=0;
for(int i=0;i<room.size();i=i+5)
{
if(room_id.equals(room.get(i)))
{
chk=1;
break;
}
}
if(chk==0)
{
rmchk=1;
}
else
{
pw.println(err);
pw.println("alert(\"Room Id already exists.\");\n" +
"\n" +
" location.replace(\"insert_room.html\");\n" +
"\n" +
" </script>\n" +
"\n" +
"\n" +
"\n" +
" </body>\n" +
"</html>");
}
}
public void admin_room_delete(HttpServletRequest req, HttpServletResponse res, int n) throws ServletException, IOException
{
res.setContentType("text/html");
PrintWriter pw = res.getWriter();
if(room.get((n*5)+4).equals("Available"))
{
for(int i=0;i<5;i++)
{
room.remove(n*5);
}
admin_room(req,res);
}
else
{
pw.println("\n" +
"<html>\n" +
" <head>\n" +
" <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n" +
" <title>Delete Error</title>\n" +
" <link rel=\"stylesheet\" type=\"text/css\" href=\"signup_style.css\"> \n" +
" </head>\n" +
"\n" +
" <body>\n" +
"\n" +
" <script>\n" +
" \n" +
" alert(\"Room is assigned. Hence, cannot be deleted.\");\n" +
"\n" +
" </script>\n" +
"\n" +
"\n" +
"\n" +
" </body>\n" +
"</html>\n" +
"\n" +
"\n" +
"\n" +
"");
admin_room(req,res);
}
}
public void admin_room_update(HttpServletRequest req, HttpServletResponse res, int n) throws ServletException, IOException
{
res.setContentType("text/html");
PrintWriter pw = res.getWriter();
pw.println("\n" +
"<html>\n" +
" <head>\n" +
" \n" +
" <title>Room Update Page</title>\n" +
" <link rel=\"stylesheet\" type=\"text/css\" href=\"style.css\"> \n" +
" <link rel=\"stylesheet\" type=\"text/css\" href=\"dropdown.css\">\n" +
" <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n" +
" </head>\n" +
"\n" +
" <body>\n" +
"\n" +
"\n" +
" <div class=\"navbar\">\n" +
" <a href=\"home.html\">Home</a>\n" +
" <a href=\"insert.html\">Insert Room</a>\n" +
" <a href=\"#\"><form action=\"Room_Management\" method=\"POST\"><button type=\"submit\" name=\"submit\" style=\"color: white; background-color: #333; margin-top: 3px;\" value=\"cancel\" >All Room Details</button></form></a>"+
" <a href=\"contact.html\">Contact Us</a> \n" +
" <a href=\"admin.html\">Log Out</a>\n" +
" </div>\n" +
" \n" +
" <br>\n" +
"\n" +
" \n" +
"\n" +
"\n" +
" <div id=\"signin\" style=\"width: 370px; margin-top: 65px; margin-left: 40%; padding-top: 10px; padding-left: 16px;\n" +
" background-color:black; opacity: 0.8;\">\n" +
"\n" +
"\n" +
" <form action=\"Room_Management\" method=\"post\">\n" +
"\n" +
" <h1 style=\"margin-left: 25%; color: white;\">Update Room</h1>\n" +
" <br>\n" +
" \n" +
" <input type=\"number\" value=\""+room.get(n*5)+"\" id=\"room_id\" name=\"room_id\" required disabled >\n" +
" <br><br>\n" +
"\n" +
" <select id=\"room_type\" name=\"room_type\" style=\"width: 90%; height: 7%;\" required >\n" +
" \n" +
" <option value=\"\" disabled selected hidden>Room Type*</option>\n" +
" <option>Single</option>\n" +
" <option>Double</option>\n" +
" <option>Deluxe</option>\n" +
" <option>Singlex</option>\n" +
" </select>\n" +
" <br><br>\n" +
"\n" +
" <select id=\"room_loc\" name=\"room_loc\" style=\"width: 90%; height: 7%;\" required >\n" +
" \n" +
" <option value=\"\" disabled selected hidden>Room Location*</option>\n" +
" <option>1st Floor</option>\n" +
" <option>2nd Floor</option>\n" +
" <option>3rd Floor</option>\n" +
" <option>4th Floor</option>\n" +
" </select>\n" +
" <br><br>\n" +
"\n" +
" <input type=\"number\" id=\"room_price\" name=\"room_price\" required placeholder=\"Room Price*\" >\n" +
" <br><br>\n" +
" \n" +
" \n" +
" <div class=\"clearfix\">\n" +
" <button type=\"submit\" value=\"edit\" class=\"signupbtn\" id=\"sub\" name=\"submit\">Update</button>\n" +
" </div>\n" +
"\n" +
" </form>\n" +
" \n" +
" </div>\n" +
"\n" +
" </body>\n" +
"</html>");
}
public void student_room_available(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
{
res.setContentType("text/html");
PrintWriter pw = res.getWriter();
pw.println("<html>\n" +
" <head>\n" +
" \n" +
" <title>Student Room Available Page</title>\n" +
" <link rel=\"stylesheet\" type=\"text/css\" href=\"style.css\"> \n" +
" <link rel=\"stylesheet\" type=\"text/css\" href=\"dropdown.css\">\n" +
" <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n" +
" </head>\n" +
"\n" +
" <body>\n" +
"\n" +
"<div id=\"signup_header\" style=\"line-height: 60px; font-size: 40px; margin-top: 0px; padding-left: 30px; background-color:#af7762 ;\">\n" +
" Rooms Available\n" +
" </div>"+
"\n" +
" <div class=\"navbar\">\n" +
" <a href=\"home.html\">Home</a>\n" +
" <a href=\"#\"><form action=\"Room_Management\" method=\"POST\"><button type=\"submit\" name=\"submit\" style=\"color: white; background-color: #333; margin-top: 3px;\" value=\"student_cancel\" >Current Room Details</button></form></a>"+
" <a href=\"contact.html\">Contact Us</a> \n" +
" <a href=\"login.html\">Log Out</a>\n" +
" </div>\n" +
" \n" +
" <br>\n" +
"\n" +
" <div id=\"profile\" style=\"width: 100px; height: 80px; margin-top: 15px; margin-left: 5%; border-radius: 25px;\">\n" +
" \n" +
" </div>"+
" <p style=\"color: white; margin-left: 5%;\">User: "+user+
"<br>(Looged In)</p>\n"+
"\n" +
"\n" +
"\n" +
" <table id=\"customers\" style=\"width: 550px; margin-top: 45px; margin-left: 30%; padding-top: 10px; padding-left: 16px;\n" +
" background-color:black; opacity: 0.8;\">\n" +
" <tr>\n" +
" <th>Id</th>\n" +
" <th>Type</th>\n" +
" <th>Location</th>\n" +
" <th>Price</th>\n" +
" <th>Status</th>\n" +
" <th>Payment</th>\n"+
" <th>Checked</th>\n");
int j=0;
for(int i=0;i<room.size();)
{
if(room.get(i+4).equals("Available"))
{
pw.println(" </tr>\n" +
" <tr>\n" +
" <td>"+room.get(i)+"</td>\n" +
" <td>"+room.get(i+1)+"</td>\n" +
" <td>"+room.get(i+2)+"</td>\n" +
" <td>"+room.get(i+3)+"</td>\n" +
" <td>"+room.get(i+4)+"</td>\n" +
" <td>Not Paid</td>\n" +
" <td><form action=\"Room_Management\" method=\"POST\"><button type=\"submit\" value=\"check in"+j+"\" name=\"submit\">Check In</button></form></td>\n" +
" </tr>\n" +
"\n" +
"\n" );
}
j++;
i=i+5;
}
pw.println("</table>\n" +
"\n" +
"\n" +
"\n" +
"\n" +
" </body>\n" +
"</html>");
}
@Override
public void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
{
Room_Management ob=new Room_Management();
res.setContentType("text/html");
PrintWriter pw = res.getWriter();
String chk_btn=req.getParameter("submit");
if(chk_btn.equals("Sign Up"))
{
ob.sign_up(req, res);
if(sg==1)
{
std_name.add(ob.name);
std_id.add(ob.id);
std_pwd.add(ob.pwd);
sg=0;
}
}
else if(chk_btn.equals("Login"))
{
ob.login(req, res);
}
else if(chk_btn.equals("Admin Login"))
{
ob.admin_login(req, res);
}
else if(chk_btn.equals("Create"))
{
ob.room_create(req, res);
if(rmchk==1)
{
room.add(ob.room_id);
room.add(ob.room_type);
room.add(ob.room_loc);
room.add(ob.room_price);
room.add("Available");
rmchk=0;
ob.admin_room(req,res);
}
}
else if(chk_btn.startsWith("d"))
{
String s=chk_btn.substring(1);
d=Integer.parseInt(s);
ob.admin_room_delete(req, res,d);
}
else if(chk_btn.startsWith("u"))
{
String s=chk_btn.substring(1);
n=Integer.parseInt(s);
ob.admin_room_update(req, res,n);
}
else if(chk_btn.equals("edit"))
{
room_type= req.getParameter("room_type");
room_loc= req.getParameter("room_loc");
room_price= req.getParameter("room_price");
room.set((n*5)+1, room_type);
room.set((n*5)+2, room_loc);
room.set((n*5)+3, room_price);
ob.admin_room(req,res);
}
else if(chk_btn.equals("chk room"))
{
ob.student_room_available(req, res);
}
else if(chk_btn.startsWith("check in"))
{
String s=chk_btn.substring(8);
int n=Integer.parseInt(s);
room.set((n*5)+4, chng);
ob.student_room(req, res,chng);
}
else if(chk_btn.startsWith("check out"))
{
String s=chk_btn.substring(10);
for(int i=0;i<room.size();i=i+5)
{
if(s.equals(room.get(i)))
{
room.set(i+4, "Available");
ob.student_room(req, res,chng);
}
}
}
else if(chk_btn.equals("cancel"))
{
ob.admin_room(req, res);
}
else if(chk_btn.equals("student_cancel"))
{
ob.student_room(req, res,chng);
}
pw.close();
}
}