Salve ragazzi,
non riesco a far partire questo mio progetto. Ecco il codice:

Index.html:
codice:
<html>
<head>
<title>TopSpeed</title>
<SCRIPT LANGUAGE='JavaScript'>
function verifica_nome()
   {
   if (document.forms['registrazione']['nome'].value=='')
      {
      alert("Attenzione: devi inserire il nome!");
      document.forms['registrazione']['nome'].focus();
      return false; 
      }
   
   if (document.forms['registrazione']['cognome'].value=='')
      {
      alert("Attenzione: devi inserire il cognome!");
      document.forms['registrazione']['cognome'].focus();
      return false; 
	  }
   
   if (document.forms['registrazione']['auto'].value=='')
      {
      alert("Attenzione: devi inserire il modello dell'auto!");
      document.forms['registrazione']['auto'].focus();
      return false; 
	  }
   
   return true; //ho fornito il codice => restituisco true e procedo con il submit della form
  }

  </SCRIPT>
</head>
<body background="auto.jpg">


<h1><p align="center"><font  color="blue" size="25" face="arial">Autoconcessionaria TopSpeed</font></p></h1>
<h1><p align="center"><u><font  color="red" size="20" face="arial"></font></u></p></h1>




<form NAME="registrazione" method="get" action="inser.jsp" onSubmit="return verifica_nome()">
<fieldset>
<legend><u><font  color="blue" size="5" face="arial">Registrazione acquirenti</font></u></legend>




<font  color="blue" size="4" face="arial">nome acquirente : </font> <input type="text"  name="nome" >


<font  color="blue" size="4" face="arial">cognome acquirente : </font> <input type="text"  name="cognome" >


<font  color="blue" size="4" face="arial">modello auto : </font> <input type="text"  name="auto" >

</fieldset>
<input type="submit" value="invia" >
</form>






<form action=http://localhost:8080/autoconcessionaria/jdbc.jsp>
<input type="submit" value="contenuto database">
</form>
</body>
</p>
</html>
inser.jsp:
codice:
<%@ page language="java" import="java.sql.*"%>
<html>
<head><title>Scrittura su mySQL Database</title>
</head>
<body>





<h1>Database  aggiornato  correttamente</h1>

<%


request.getParameter("nome");                 //ricezione dalla form i parametri
request.getParameter("cognome");
request.getParameter("auto");


String DRIVER = "org.gjt.mm.mysql.Driver";
Class.forName(DRIVER).newInstance();


String url="jdbc:mysql://localhost/autoconcessionaria?user=root&password=root";

Connection conn=DriverManager.getConnection(url);
Statement st=conn.createStatement();
st.executeUpdate("   insert into varie(nome,cognome,auto) values('   "    +request.getParameter("nome")+  "' , '"   +request.getParameter("cognome")+    "' , '"    +request.getParameter("auto")+     "')"   );

   

st.close();

conn.close();


%>

<script type="text/javascript">  //reindirizzamento automatico index.html dopo 2 secondi
setTimeout('location.href="http://localhost:8080/autoconcessionaria/index.html"',2000);
</script>

</tbody>
</table>
</center>
</div>


</body>
</html>
jdbc.jsp:
codice:
<%@ page language="java" import="java.sql.*"%>
<html>
<head><title>Lettura mySQL Database</title>
</head>

<SCRIPT LANGUAGE='JavaScript'>
function verifica_nome()
   {
 
   if (document.forms['cerca']['auto'].value=='')
      {
      alert("Attenzione: devi inserire l'auto !");
      document.forms['cerca']['auto'].focus();
      return false; 
	  }
   
   return true; //ho fornito il codice => restituisco true e procedo con il submit della form
  }
  </SCRIPT>
<body bgcolor="#3399FF">

<h1> <p align="center">Elenco Auto Vendute


<form action="index.html">   
<input type="submit" value="ritorna al form" >
</form>
</p> <h1/>



<div align="center" width="85%">
<center>
<table border="1" borderColor="#ffe9bf" cellPadding="0" cellSpacing="0" width="658" height="63">
<tbody>
<td bgColor="blue" width="47" align="center" height="19"><font color="#ffffff">Numero auto vendute</font></td>
<td bgColor="blue" width="110" height="19"><font color="#ffffff">Cognome</font></td>
<td bgColor="blue" width="110" height="19"><font color="#ffffff">Nome</font></td>
<td bgColor="blue" width="110" height="19"><font color="#ffffff">Auto</font></td>

<%
String DRIVER = "org.gjt.mm.mysql.Driver";
Class.forName(DRIVER).newInstance();

try{
String url="jdbc:mysql://localhost/autoconcessionaria?user=root&password=root"; 

int i=1;
Connection con=DriverManager.getConnection(url);
Statement stmt=con.createStatement();
ResultSet rst=stmt.executeQuery("select * from varie ");   
while(rst.next())
{


%>

<tr>
<td bgColor="#ffff98" vAlign="top" width="47" align="center" height="19"><%=i%></td>

<td bgColor="#ffff98" vAlign="top" width="100" height="19"><%=rst.getString("cognome")%></td>
<td bgColor="#ffff98" vAlign="top" width="100" height="19"><%=rst.getString("nome")%></td>
<td bgColor="#ffff98" vAlign="top" width="100" height="19"><%=rst.getString("auto")%></td>



</tr>


<% 

i++;
}

rst.close();
stmt.close();
con.close();

}catch(Exception e){
System.out.println(e.getMessage());
}
%>



</tbody>
</table>
</center>
</div>









<h3> 
<form NAME="cerca" method="get" action="jdbc2.jsp" onSubmit="return verifica_nome()">
<p align="center">acquirente da cercare : <input type="text"  name="auto" >
<input type="submit" value="invia" >
</form>
</h3>



</body>
</html>
jdbc2.jsp:
codice:
<%@ page language="java" import="java.sql.*"%>
<html>
<head><title>Lettura mySQL Database</title>
</head>




<body bgcolor="#3399FF">

<h1> <p align="center">[i]Elenco Auto Vendute


<form action="index.html">   
<input type="submit" value="ritorna al form" >
</form>
[/b]</p> <h1/>






<div align="center" width="85%">
<center>
<table border="1" borderColor="#ffe9bf" cellPadding="0" cellSpacing="0" width="658" height="63">
<tbody>
<td bgColor="blue" width="47" align="center" height="19"><font color="#ffffff"></font></td>
<td bgColor="blue" width="110" height="19"><font color="#ffffff">Cognome</font></td>
<td bgColor="blue" width="110" height="19"><font color="#ffffff">Nome</font></td>
<td bgColor="blue" width="110" height="19"><font color="#ffffff">Auto</font></td>




<%

request.getParameter("auto");



String DRIVER = "org.gjt.mm.mysql.Driver";
Class.forName(DRIVER).newInstance();


try{
String url="jdbc:mysql://localhost/autoconcessionaria?user=root&password=root"; 

int i=1;
Connection con=DriverManager.getConnection(url);
Statement stmt=con.createStatement();
ResultSet rst=stmt.executeQuery("  select * from varie WHERE auto = '"  +request.getParameter("auto")+    "'");   
while(rst.next())
{


%>



<tr>
<td bgColor="#ffff98" vAlign="top" width="47" align="center" height="19"><%=i%></td>

<td bgColor="#ffff98" vAlign="top" width="100" height="19"><%=rst.getString("cognome")%></td>
<td bgColor="#ffff98" vAlign="top" width="100" height="19"><%=rst.getString("nome")%></td>
<td bgColor="#ffff98" vAlign="top" width="100" height="19"><%=rst.getString("auto")%></td>



</tr>


<% 

i++;
}



rst.close();
stmt.close();
con.close();

}catch(Exception e){
System.out.println(e.getMessage());
}
%>



</tbody>
</table>
</center>
</div>









<form action="jdbc.jsp">   
<input type="submit" value="ritorna al database" >
</form>




</body>
</html>

Mi potete dire il motivo?

Grazie!