Is your jdbc driver in jar file? Regards, PQ "This Guy Thinks He Knows Everything" "This Guy Thinks He Knows What He Is Doing"
-----Original Message----- From: Uros Kotnik [mailto:[EMAIL PROTECTED]] Sent: February 6, 2003 11:24 AM To: [EMAIL PROTECTED] Subject: Cannot load JDBC driver class 'null' , again Hi, This question was probbably posted many times but I didn't found answer and I really need it. I'm using TC 4.1 DB : Hypersonic HSQLDB.jar in \tomcat_home\common\lib Server.xml ---------- <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> <!-- username and password for dB connections --> <parameter> <name>username</name> <value>iuser</value> </parameter> <parameter> <name>password</name> <value>iuser</value> </parameter> <!-- Class name for JDBC driver --> <parameter> <name>driverClassName</name> <value>org.hsqldb.jdbcDriver</value> </parameter> <parameter> <name>url</name> <value>jdbc:hsqldb:hsql://asterix</value> </parameter> </ResourceParams> </Context> WEB.XML -------- <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> Servlet code ------------- Context initCtx = new InitialContext(); Context envCtx = (Context) initCtx.lookup("java:comp/env"); DataSource ds = (DataSource)envCtx.lookup("jdbc/TestDB"); if (ds != null) { Connection conn = ds.getConnection(); //"value" of DS is "org.apache.commons.dbcp.BasicDataSource@b6548" //and here is exception in "Connection conn = ds.getConnection();" java.sql.SQLException: Cannot load JDBC driver class 'null' at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSou rce.java:529) at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource .java:312) --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]