Connecting database in Servlet vs App

Question

Hi,
Windows 2000 Server / SQL Server 2000 / Tomcat
I have a class managing the connections and requests to databases.
When invoking it from a java app context (launched from the command line java myApp), it's working fine
but when the same connection is made from a servlet, the Class.forName(dbDriver) doesn't work. I don't have a specific messsage, the Exception e.getMessage() returns only the driver used to access the database.
Have any idea ?

Answer 1

here is the test I made, creating a servlet as simple as possible :
public void doGet(HttpServletRequest requete, HttpServletResponse response) throws IOException, ServletException{
test( response );
public void test(HttpServletResponse response){
boolean correct = true;
PrintWriter pw = null;
try{
response.setContentType( "text/html" );
pw = response.getWriter();
catch(Exception e){ correct = false;}
if ( correct ){
try{
Class.forName( "com.microsoft.jdbc.sqlserver.SQLServerDriver" ).newInstance();
catch( Exception e ){
pw.println( "Error : " + e.getMessage() );
the Class.forName send me in the Exception.
The message is Error : com.microsoft.jdbc.sqlserver.SQLServerDriver
I'm running Windows 2000 Server, SQL Server 2000, Microsoft SQL Server 2000 Driver for JDBC, Tomcat 5.5, JRE 1.5.0
The same Class.forName is ok when called from the main of a java App.