I'm trying to set up a JNDI connection to MySQL. I'm using the binary release of 4.1.11 with 4.0.4's jasper-compiler.jar and jasper-runtime.jar. I'm also using mysql-connector-java-2.0.14.
It's very similar to this thread http://www.mail-archive.com/tomcat-user@jakarta.apache.org/msg64346.html , however I still can't get mine working after reading that thread. I've basically followed (cut and paste) the JNDI Datasource HOWTO, http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-datasource-examples-howto.html . Here is the Context section of my server.xml <Context path="/jkw" docBase="/usr/local/web/meta-htdocs/JWALSTRA/htdocs/jsp" debug="5" useNaming="true" reloadable="true" crossContext="true"> <Logger className="org.apache.catalina.logger.FileLogger" prefix="jkw_log." suffix=".txt" timestamp="true"/> <Resource name="jdbc/JKW" auth="Container" type="javax.sql.DataSource"/> <ResourceParams name="jdbc/JKW"> <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>nobody</value> </parameter> <parameter> <name>password</name> <value></value> </parameter> <!-- Class name for mm.mysql JDBC driver --> <parameter> <name>driverClassName</name> <value>com.mysql.jdbc.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/jkw?autoReconnect=true</value> </parameter> </ResourceParams> </Context> Here is my 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> <taglib> <taglib-uri> /orataglib </taglib-uri> <taglib-location> /WEB-INF/tlds/orataglib_1_0_3.tld </taglib-location> </taglib> <taglib> <taglib-uri> /jkw </taglib-uri> <taglib-location> /WEB-INF/tlds/jkw-1.0.tld </taglib-location> </taglib> <resource-ref> <description>MySQL DB Connection</description> <res-ref-name>jdbc/JKW</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>Container</res-auth> </resource-ref> </web-app> My common/lib directory ... (jasper* is from 4.0.4) -rw-r--r-- 1 root root 45386 Sep 19 08:30 activation.jar -rw-r--r-- 1 root root 716139 Sep 19 08:30 ant.jar -rw-r--r-- 1 root root 90503 Sep 19 08:30 commons-collections.jar -rw-r--r-- 1 root root 62998 Sep 19 08:30 commons-dbcp.jar -rw-r--r-- 1 root root 16910 Sep 19 08:30 commons-logging-api.jar -rw-r--r-- 1 root root 28930 Sep 19 08:30 commons-pool.jar -rw-r--r-- 1 root root 210191 Sep 22 21:40 jasper-compiler.jar -rw-r--r-- 1 root root 67077 Sep 22 21:40 jasper-runtime.jar -rw-r--r-- 1 root root 84854 Sep 19 08:30 jdbc2_0-stdext.jar -rw-r--r-- 1 root root 98496 Sep 19 08:30 jndi.jar -rw-r--r-- 1 root root 8674 Sep 19 08:30 jta.jar -rw-r--r-- 1 root root 280984 Sep 19 08:30 mail.jar -rw-r--r-- 1 root root 125961 Sep 22 21:27 mysql-connector-java-2.0.14-bin.jar -rw-r--r-- 1 root root 28664 Sep 19 08:30 naming-common.jar -rw-r--r-- 1 root root 18222 Sep 19 08:30 naming-factory.jar -rw-r--r-- 1 root root 37601 Sep 19 08:30 naming-resources.jar -rw-r--r-- 1 root root 80054 Sep 19 08:30 servlet.jar Here is my code sniplet ... Connection conn = null; Statement stmt = null; ResultSet rset = null; Context ctx = new InitialContext(); if(ctx == null ) { throw new Exception("Boom - No Context"); } DataSource ds = (DataSource)ctx.lookup( "java:comp/env/jdbc/JKW"); try { conn = ds.getConnection(); stmt = conn.createStatement(); And the error message ... java.sql.SQLException: Cannot load JDBC driver class 'null' at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:529) at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:312) at jkw.jsp.beans.SkillTypeBean.setTypeId(SkillTypeBean.java:42) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) Any ideas? Thanks, John -- John Walstra [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] Don't abandon hope. 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