Hi Kevin, have you started the tomcat afterwards. Regards Gerlinde
> -----Ursprungliche Nachricht----- > Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Gesendet: Mittwoch, 12. Marz 2003 13:34 > An: [EMAIL PROTECTED] > Betreff: Re: AW: java.sql.SQLException: Cannot load JDBC driver class > 'null' > > > > Gerlinde, > > Thanks for the response! > I placed my jdbc jar file under common/lib, but I still get the same error > message. > If you or anyone else has any other ideas, that would be greatly > appreciated. > > > > > > "Gerlinde Fischer" > > <[EMAIL PROTECTED] To: > "Tomcat Users List" <[EMAIL PROTECTED]> > amberg.de> cc: > > Subject: > AW: java.sql.SQLException: Cannot load JDBC driver class > 03/12/2003 05:47 AM 'null' > > Please respond to "Tomcat > > Users List" > > > > > > > > > > Hi > > where ist your Database Connection? In the server.xml in the > context for your test application. > > The jdbc.driver must be placed into the directory > common/lib. > > I hope this will help. > > Regards Gerlinde > > > > -----Ursprungliche Nachricht----- > > Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > > Gesendet: Dienstag, 11. Marz 2003 22:58 > > An: [EMAIL PROTECTED] > > Betreff: java.sql.SQLException: Cannot load JDBC driver class 'null' > > > > > > Tomcat version - 4.1.12 > > MySQL version - 3.23.55-nt > > OS - WinNT > > JDK - 1.4.1_01 > > > > I have researched this problem on the internet and in the > > documentation for > > Tomcat, and I still haven't resolved this issue. So, I'm looking > > for help from > > someone from this list. > > > > Here is my URL that I invoke: http://localhost:8080/dbtest/test.jsp > > Here is the error I receive: > > > > java.sql.SQLException: Cannot load JDBC driver class 'null' at > > org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSou > > rce.java:529) > > > > Referencing this URL - > > http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-datasource-ex > > amples-howto.html: > > 1. I have a database and table with 1 row of data > > 2. Here is the chunk of code that I inserted into my > > $CATALINA_HOME/conf/server.xml. > > <!-- Database configuration for MySQL --> > > <Context path="/DBTest" docBase="DBTest" > > debug="5" reloadable="true" crossContext="true"> > > > > <Logger className="org.apache.catalina.logger.FileLogger" > > prefix="localhost_DBTest_log." suffix=".txt" > > timestamp="true"/> > > > > <Resource name="jdbc/TestDB" > > auth="Container" > > type="javax.sql.DataSource"/> > > > > <ResourceParams name="jdbc/TestDB"> > > <parameter> > > <name>factory</name> > > > > <value>org.apache.commons.dbcp.BasicDataSourceFactory</value> > > </parameter> > > > > <!-- Maximum number of dB connections in pool. > > Make sure you > > configure your mysqld max_connections > large enough to > > > handle > > all of your db connections. Set to 0 for no limit. > > --> > > <parameter> > > <name>maxActive</name> > > <value>100</value> > > </parameter> > > > > <!-- Maximum number of idle dB connections to > > retain in pool. > > Set to 0 for no limit. > > --> > > <parameter> > > <name>maxIdle</name> > > <value>30</value> > > </parameter> > > > > <!-- Maximum time to wait for a dB connection to > > become > available > > in ms, in this example 10 seconds. An > > > Exception is thrown > > if > > this timeout is exceeded. Set > to -1 to wait > > indefinitely. > > --> > > <parameter> > > <name>maxWait</name> > > <value>10000</value> > > </parameter> > > > > <!-- MySQL dB username and password for dB > connections --> > > <parameter> > > <name>username</name> > > <value>bugtracker</value> > > </parameter> > > <parameter> > > <name>password</name> > > <value>footin</value> > > </parameter> > > > > <!-- Class name for mm.mysql JDBC driver --> > > <parameter> > > <name>driverClassName</name> > > <value>org.gjt.mm.mysql.Driver</value> > > </parameter> > > > > <!-- The JDBC connection url for connecting to > > your MySQL dB. > > The autoReconnect=true argument to the url > > makes sure > that > > the > > mm.mysql JDBC Driver will automatically > > > reconnect if mysqld > > closed the > > connection. mysqld by > default closes idle > > connections > > after 8 hours. > > --> > > <parameter> > > <name>url</name> > > <!-- > > > <value>jdbc:mysql://localhost:3306/javatest?autoReconnect=true</value>--> > > <value>jdbc:mysql://localhost:3306/bugtracker</value> > > </parameter> > > </ResourceParams> > > </Context> > > 3. Here is my web.xml under > $CATALINA_HOME/webapps/dbtest/web-inf/web.xml: > > <?xml version="1.0" encoding="ISO-8859-1"?> > > <!DOCTYPE web-app PUBLIC > > "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" > > "http://java.sun.com/dtd/web-app_2_3.dtd";> > > <web-app> > > <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> > > > > 4. Added my DB Driver under > > $CATALINA_HOME/webapps/dbtest/lib/org/git/mm/mysql/Driver.class. > > I also tried > > just putting the jar file under the /lib. > > > > 5. Created a JSP and class just like in the example above. I just > > changed my > > select statement inside the class, that's all. > > > > 6. I have verified that my database is indeed running. > > > > 7. In my.ini (for MySQL), the port setting is NOT commented. The > > bind-address IS > > commented out. > > > > Thanks for any help! > > Kevin > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
