javax.servlet.ServletException: Cannot create JDBC driver of class '' for connect URL 'null'

check your driver is available
and that you have specified the correct connect url string

And that the driver class name is specified correctly.

Here's the code that's giving me fits...

  Context iniCtx = new InitialContext();
  Context envCtx = (Context)    iniCtx.lookup("java:comp/env");
  DataSource ds =  (DataSource) envCtx.lookup("jdbc/something");
  Connection con = ds.getConnection();
  Statement  st = con.createStatement();

And here's the server.xml code as well...

        <Resource name="jdbc/something"
                  auth="Container"
                  type="javax.sql.DataSource"
                  driverClassName="org.postgresql.Driver"
                  url="jdbc:postgresql://127.0.0.1:5432/something"
                  username="something" password="password"
                  maxActive="20" maxIdle="10" maxWait="-1"/>
<!--
      
          <Resource name="jdbc/something" auth="Container"
                    type="javax.sql.DataSource">
          </Resource>

          <ResourceParams name="jdbc/something">
             <parameter>
               <name>factory</name>
               <value>org.apache.commons.dbcp.BasicDataSourceFactory</value>
             </parameter>

            <parameter>
              <name>removeAbandoned</name>
              <value>true</value>
            </parameter>

             <parameter>
               <name>driverClassName</name>
               <value>org.postgresql.Driver</value>
             </parameter>

             <parameter>
               <name>url</name>
               <value>jdbc:postgresql:something</value>
             </parameter>

             <parameter>
               <name>username</name>
               <value>something</value>
             </parameter>

             <parameter>
               <name>password</name>
               <value>password</value>
             </parameter>

             <parameter>
               <name>maxActive</name>
               <value>20</value>
             </parameter>

             <parameter>
               <name>maxIdle</name>
               <value>10</value>
             </parameter>

             <parameter>
               <name>maxWait</name>
               <value>-1</value>
             </parameter>
           </ResourceParams>
-->

WHere is your driver jar located?

Hey objects,

I forgot to mention that I'm a newbie, so how do I tell where my driver jar is located?

Thanks!

You need to put the jar file containing the jdbc driver in either <tomcat>/common/lib or <webapp>/WEB-INF/lib

Ok, the jar file was already there and I downloaded a newer version just to see if that
helped, but I still get the same error.

whats the error in the log say?

thanks for grade