Did you configure a connection pool in Tomcat? Then, get a connection object from the pool for each data search method invocation.
I am at work now. I do not have the configuration with me. I can post the configuration and the database access code when I get home. Meanwhile, do a search on the internet. --- Michael Ni <[EMAIL PROTECTED]> wrote: > i don't get any error when there isn't that much > traffic > > but i dont close my jdbc connections, could that be > a problem? > > this is the function i use to query > > ---------------------------------------------------------------------------------------- > public ResultSet getData(String queryStr) throws > Exception > { > > try { > DBConstants db = new DBConstants(); > Class.forName(db.getDrivername()); > Connection conn; > conn = > DriverManager.getConnection("jdbc:microsoft:sqlserver://" > + > db.getHostname() + "","" + db.getUsername() + "","" > + db.getPassword() + > ""); > > > Statement stmt = conn.createStatement(); > ResultSet rs = stmt.executeQuery(queryStr); > return rs; > } > catch(Exception e) { > e.printStackTrace(); > System.out.println("getData error"); > throw new Exception(); > } > } > ---------------------------------------------------------------------------------- > > then if i want to use it in a jsp page i will do > something like this > ------------------------------------------------------------------------ > > <% > DBPoolBean dbpb = new DBPoolBean(); > > ResultSet rs = dbpb.getData("SELECT * FROM drops > order by hnm, > itemname_en"); > while ( rs.next() ) { > out.println("<tr><td width=\"50\">" + > rs.getString("hnm") + " </td>"); > out.println("<td width=\"50\">" + > rs.getString("itemname_en") + " > </td></tr>"); > } > %> > > > > >From: Darek Czarkowski > <[EMAIL PROTECTED]> > >Reply-To: "Tomcat Users List" > <users@tomcat.apache.org> > >To: Tomcat Users List <users@tomcat.apache.org> > >Subject: Re: web application - student need help > >Date: Fri, 05 Jan 2007 12:52:19 -0800 > > > >Michael Ni wrote: > >> > >>the web application uses simple queries, like > search a table for a certain > >>condition. i realize when multiple people access > the database it hangs, > >>and causes the jsp pages to error. > >Just a guess, your connection to the database is a > problem, perhaps errors > >in queries, not closed connections. > >What are the error messages? (page/log) > > > >-- > >Darek Czarkowski > >Ph: 604 294 6557 (Ext. 113) > >Fx: 604 294 6507 > >www.infinitesource.ca > >darekc at infinitesource dot ca > > > > > >--------------------------------------------------------------------- > >To start a new topic, e-mail: > users@tomcat.apache.org > >To unsubscribe, e-mail: > [EMAIL PROTECTED] > >For additional commands, e-mail: > [EMAIL PROTECTED] > > > > _________________________________________________________________ > Type your favorite song. Get a customized station. > Try MSN Radio powered > by Pandora. > http://radio.msn.com/?icid=T002MSN03A07001 > > > --------------------------------------------------------------------- > To start a new topic, e-mail: > users@tomcat.apache.org > To unsubscribe, e-mail: > [EMAIL PROTECTED] > For additional commands, e-mail: > [EMAIL PROTECTED] > > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]