Hi, I checked that there have been numerous questions regarding my problem on this forum. But I didnot find a complete answer on any of them. I have set up a MS SQLServer JDBC driver datasource on my tomcat 5.0.28 and followed these steps: 1. copy the JDBC Driver's jar into $CATALINA_HOME/common/lib.
2. server.xml configuration Configure the JNDI DataSource in Tomcat by adding a declaration for your resource to $CATALINA_HOME/conf/server.xml.
3. web.xml configuration -config in WEB-INF/web.xml
But still get the error org.apache.commons.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null'