I've been trying for days now to establish a jdbc resource for mysql in tomcat 6.0.13
To whom it may correspond: I get the following error Unable to get connection, DataSource invalid: "org.apache.tomcat.dbcp.dbcp.SQLNestedException : Cannot create JDBC driver of class '' for connect URL 'null'" I have the driver mysql-connector-java-5.0.6-bin.jar copied to $CATALINA_HOME/lib My application web.xml looks like this: (exactly as the example) <web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance " xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd " version="2.4"> <description>MySQL Test App</description> <resource-ref> <description>DB Connection</description> <res-ref-name>jdbc/TestDB</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>Container</res-auth> </resource-ref> </web-app> In http://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource-examples-howto.htmlthere is this instruction: Add this in between the </Context> tag of the examples context and the > </Host> tag closing the localhost definition. If there is no such tag, you > can add one as illustrated in the > Context<http://tomcat.apache.org/tomcat-6.0-doc/config/context.html>and > Host <http://tomcat.apache.org/tomcat-6.0-doc/config/host.html>configuration > references, and repeated below for your convenience. In my own opinion this is quite ambiguous. After several search in the mail repositories. I have this as my server.xml configuration (i deleted the comments for easy reading) <Server port="8005" shutdown="SHUTDOWN"> <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" /> <Listener className="org.apache.catalina.core.JasperListener" /> <Listener className="org.apache.catalina.mbeans.ServerLifecycleListener" /> <Listener className=" org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" /> <GlobalNamingResources> <Resource name="UserDatabase" auth="Container" type="org.apache.catalina.UserDatabase" description="User database that can be updated and saved" factory="org.apache.catalina.users.MemoryUserDatabaseFactory" pathname="conf/tomcat-users.xml" /> </GlobalNamingResources> <Service name="Catalina"> <Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" /> <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" /> <Engine name="Catalina" defaultHost="localhost"> <Realm className="org.apache.catalina.realm.UserDatabaseRealm" resourceName="UserDatabase"/> <Host name="localhost" appBase="webapps" unpackWARs="true" autoDeploy="true" xmlValidation="false" xmlNamespaceAware="false"> <Context path="/DBTest" docBase="DBTest" debug="5" reloadable="true" crossContext="true"> <Resource name="jdbc/TestDB" auth="Container" type=" javax.sql.DataSource" maxActive="100" maxIdle="30" maxWait="10000" username="gabo" password="huevos" driverClassName=" com.mysql.jdbc.Driver " url="jdbc:mysql://localhost:3306/javatest?autoReconnect=true"/> </Context> </Host> </Engine> </Service> </Server> In my own opinion the problem is with server.xml, should I add something to context.xml? Any comment, hint or tip would be greatly appreciated. Regards Gabriel