Help me plz, deleting in jsp

hi to all,
i created one jsp page to view the database list
<html>
<head>
<title>Delete an Project Record</title>
</head>
<%@ page language="java" import="java.sql.*"%>
<body bgcolor=LightCyan>
<h1>Delete an Project Record</h1>
<table border="1" width="400">
<tr>
<td><b>Project Id </b></td>
<td><b>Project Name </b></td>
<td><b>Client Name </b></td>
<td><b>Project Start Date </b></td>
<td><b>Estimated End Date</b></td>
<td><b>Project Manager </b></td>
<td><b>Estimated Effort </b></td>
<td><b>Delete? </b></td>
</tr>
<%
               Connection con = null;
               Statement stmt = null;
               ResultSet rs = null;
                              String driverName = "com.mysql.jdbc.Driver";
               Class.forName(driverName);
               String serverName = "192.168.10.5";
               String mydatabase = "Trainees";
String url = "jdbc:mysql://" + serverName + "/" + mydatabase; // a JDBC url
               String username = "josep";
               String password = "josep";          con = DriverManager.getConnection(url, username, password);
               stmt=con.createStatement();
          rs=stmt.executeQuery("select * from project");
                                            if(rs != null)
               while (rs.next())
          String Project_id = rs.getString ("proj_id");
          String Project_name=rs.getString ("proj_name");
                 String client_name=rs.getString ("client_name");
     String start_date=rs.getString("strt_date");
     String estimated_date=rs.getString("est_date");
          String Project_mgr=rs.getString ("proj_mgr");
               int est_effort=rs.getInt ("est_effort");
%>
<tr>
     <td><%=Project_id %></td>
     <td><%=Project_name %></td>
     <td><%=client_name %></td>
     <td><%=start_date %></td>
     <td><%=estimated_date %></td>
     <td><%=Project_mgr %></td>
     <td><%=est_effort %></td>
<td><a href='delproc.jsp?Project_id=<%=Project_id %>'>delete</a></td>
</tr>
<%
                 stmt.close();
                     con.close();
%>
</table>
</body>
</html>
the result of this page was this
Delete an Project Record
Project Id Project Name Client Name Project Start Date Estimated End Date Project Manager Estimated Effort Delete?
p001 enet tratum 2006-02-20 2006-04-20 raghunath 80 delete
p002 tenet tratums 2006-03-20 2006-05-20 raghu 40 delete
then i created another jsp page to see the result of the deletion
<html>
<head>
<title>Delete Project Processing</title>
</head>
<%@ page language="java" import="java.sql.*"%>
<body bgcolor=LightGreen>
<%
                          String driverName = "com.mysql.jdbc.Driver";
                          Class.forName(driverName);
               String Project_id=request.getParameter("proj_id");
               String serverName = "192.168.10.5";
               String mydatabase = "Trainees";
               String url = "jdbc:mysql://" + serverName + "/" + mydatabase; // a JDBC url
               String username = "josep";
               String password = "josep";
               Connection con = DriverManager.getConnection(url, username, password);
                                          Statement stmt=con.createStatement();
     int rowsAffected = stmt.executeUpdate("delete from project where proj_name="+Project_id);
     if(rowsAffected == 1)
%>
     <h1> Successful Deletion </h1>
<%
     else
%>
     <h1> Sorry, Deletion has failed </h1>
<%
     stmt.close();
     con.close();
%>
</body>
</html>
but here i am getting result as sorry deletion has failed
wat should the problem in deleting the database i cant able to found
if anyone knows plz reply

hai to all
in here my first jsp page shows wat are all in the database are seen
in my second jsp page iam getting output as DELECTION has failed
plz tel me if any one knows
ther is a problem in my second jsp page at this lines
<%
               String driverName = "com.mysql.jdbc.Driver";
               Class.forName(driverName);
               String Project_id = request.getParameter("proj_id");
     String serverName = "192.168.10.5";
               String mydatabase = "Trainees";
               String url = "jdbc:mysql://" + serverName + "/" + mydatabase; // a JDBC url
               String username = "josep";
               String password = "josep";
               Connection con = DriverManager.getConnection(url, username, password);
Statement stmt=con.createStatement();
               int rowsAffected=stmt.executeUpdate("delete from project where proj_id= "+Project_id);
               if(rowsAffected ==1)
%>
     <h1> Successful Deletion </h1>
<%
               else
%>
     <h1> Deletion has failed </h1>
<%
               stmt.close();
               con.close();
%>

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