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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=20637 java.sql.SQLException: Cannot load JDBC driver class 'null' Summary: java.sql.SQLException: Cannot load JDBC driver class 'null' Product: Tomcat 4 Version: 4.1.24 Platform: Sun OS/Version: Windows NT/2K Status: NEW Severity: Critical Priority: Other Component: Connector:Other AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] I have installed tomcat 4.1.24. I am using MicroSoft SQL SERVER 2000 and i have copied the .jar files to \common\lib folder when i say get connection , the following exception araises. java.sql.SQLException: Cannot load JDBC driver class 'null' Here is my server.xml file ========================== <?xml version='1.0' encoding='utf-8'?> <Server className="org.apache.catalina.core.StandardServer" debug="0" port="8005" shutdown="SHUTDOWN"> <Listener className="org.apache.catalina.mbeans.ServerLifecycleListener" debug="0" jsr77Names="false"/> <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" debug="0"/> <GlobalNamingResources> <Environment name="simpleValue" override="true" type="java.lang.Integer" value="30"/> <Resource auth="Container" description="User database that can be updated and saved" name="UserDatabase" scope="Shareable" type="org.apache.catalina.UserDatabase"/> <Resource name="CardAlertDB" scope="Shareable" type="javax.sql.DataSource"/> <ResourceParams name="UserDatabase"> <parameter> <name>factory</name> <value>org.apache.catalina.users.MemoryUserDatabaseFactory</value> </parameter> <parameter> <name>pathname</name> <value>conf/tomcat-users.xml</value> </parameter> </ResourceParams> <ResourceParams name="CardAlertDB"> <parameter> <name>maxWait</name> <value>5000</value> </parameter> <parameter> <name>maxActive</name> <value>4</value> </parameter> <parameter> <name>password</name> <value>password</value> </parameter> <parameter> <name>url</name> <value>jdbc:microsoft:sqlserver://192.9.200.3:1433</value> </parameter> <parameter> <name>driverClassName</name> <value>com.microsoft.jdbc.sqlserver.SQLServerDriver</value> </parameter> <parameter> <name>maxIdle</name> <value>2</value> </parameter> <parameter> <name>username</name> <value>sa</value> </parameter> </ResourceParams> </GlobalNamingResources> <Service className="org.apache.catalina.core.StandardService" debug="0" name="Tomcat-Standalone"> <Connector className="org.apache.coyote.tomcat4.CoyoteConnector" acceptCount="100" bufferSize="2048" compression="off" connectionLinger="-1" connectionTimeout="20000" debug="0" disableUploadTimeout="true" enableLookups="true" maxKeepAliveRequests="100" maxProcessors="75" minProcessors="5" port="8080" protocolHandlerClassName="org.apache.coyote.http11.Http11Protocol" proxyPort="0" redirectPort="8443" scheme="http" secure="false" tcpNoDelay="true" useURIValidationHack="false"> <Factory className="org.apache.catalina.net.DefaultServerSocketFactory"/> </Connector> <Connector className="org.apache.coyote.tomcat4.CoyoteConnector" acceptCount="10" bufferSize="2048" compression="off" connectionLinger="-1" connectionTimeout="20000" debug="0" disableUploadTimeout="false" enableLookups="true" maxKeepAliveRequests="100" maxProcessors="75" minProcessors="5" port="8009" protocolHandlerClassName="org.apache.jk.server.JkCoyoteHandler" proxyPort="0" redirectPort="8443" scheme="http" secure="false" tcpNoDelay="true" useURIValidationHack="false"> <Factory className="org.apache.catalina.net.DefaultServerSocketFactory"/> </Connector> <Engine className="org.apache.catalina.core.StandardEngine" debug="0" defaultHost="localhost" mapperClass="org.apache.catalina.core.StandardEngineMapper" name="Standalone"> <Host className="org.apache.catalina.core.StandardHost" appBase="webapps" autoDeploy="true" configClass="org.apache.catalina.startup.ContextConfig" contextClass="org.apache.catalina.core.StandardContext" debug="0" deployXML="true" errorReportValveClass="org.apache.catalina.valves.ErrorReportValve" liveDeploy="true" mapperClass="org.apache.catalina.core.StandardHostMapper" name="localhost" unpackWARs="true"> <Context className="org.apache.catalina.core.StandardContext" cachingAllowed="true" charsetMapperClass="org.apache.catalina.util.CharsetMapper" cookies="true" crossContext="false" debug="0" displayName="Tomcat Administration Application" docBase="../server/webapps/admin" mapperClass="org.apache.catalina.core.StandardContextMapper" path="/admin" privileged="true" reloadable="false" swallowOutput="false" useNaming="true" wrapperClass="org.apache.catalina.core.StandardWrapper"> <Logger className="org.apache.catalina.logger.FileLogger" debug="0" directory="logs" prefix="localhost_admin_log." suffix=".txt" timestamp="true" verbosity="1"/> </Context> <Context className="org.apache.catalina.core.StandardContext" cachingAllowed="true" charsetMapperClass="org.apache.catalina.util.CharsetMapper" cookies="true" crossContext="false" debug="0" displayName="Webdav Content Management" docBase="F:\Program Files\Apache Group\Tomcat 4.1\webapps\webdav" mapperClass="org.apache.catalina.core.StandardContextMapper" path="/webdav" privileged="false" reloadable="false" swallowOutput="false" useNaming="true" wrapperClass="org.apache.catalina.core.StandardWrapper"> </Context> <Context className="org.apache.catalina.core.StandardContext" cachingAllowed="true" charsetMapperClass="org.apache.catalina.util.CharsetMapper" cookies="true" crossContext="true" debug="0" displayName="Tomcat Examples" docBase="examples" mapperClass="org.apache.catalina.core.StandardContextMapper" path="/examples" privileged="false" reloadable="true" swallowOutput="false" useNaming="true" wrapperClass="org.apache.catalina.core.StandardWrapper"> <Logger className="org.apache.catalina.logger.FileLogger" debug="0" directory="logs" prefix="localhost_examples_log." suffix=".txt" timestamp="true" verbosity="1"/> <Parameter name="context.param.name" override="false" value="context.param.value"/> <Ejb home="com.wombat.empl.EmployeeRecordHome" name="ejb/EmplRecord" remote="com.wombat.empl.EmployeeRecord" type="Entity"/> <Ejb description="Example EJB Reference" home="com.mycompany.mypackage.AccountHome" name="ejb/Account" remote="com.mycompany.mypackage.Account" type="Entity"/> <Environment name="maxExemptions" override="true" type="java.lang.Integer" value="15"/> <Environment name="foo/name4" override="true" type="java.lang.Integer" value="10"/> <Environment name="minExemptions" override="true" type="java.lang.Integer" value="1"/> <Environment name="foo/bar/name2" override="true" type="java.lang.Boolean" value="true"/> <Environment name="name3" override="true" type="java.lang.Integer" value="1"/> <Environment name="foo/name1" override="true" type="java.lang.String" value="value1"/> <LocalEjb description="Example Local EJB Reference" home="com.mycompany.mypackage.ProcessOrderHome" local="com.mycompany.mypackage.ProcessOrder" name="ejb/ProcessOrder" type="Session"/> <Resource auth="SERVLET" name="jdbc/EmployeeAppDb" scope="Shareable" type="javax.sql.DataSource"/> <Resource auth="Container" name="mail/Session" scope="Shareable" type="javax.mail.Session"/> <ResourceParams name="jdbc/EmployeeAppDb"> <parameter> <name>user</name> <value>sa</value> </parameter> <parameter> <name>password</name> <value></value> </parameter> <parameter> <name>driverName</name> <value>jdbc:HypersonicSQL:database</value> </parameter> <parameter> <name>driverClassName</name> <value>org.hsql.jdbcDriver</value> </parameter> </ResourceParams> <ResourceParams name="mail/Session"> <parameter> <name>mail.smtp.host</name> <value>localhost</value> </parameter> </ResourceParams> <ResourceLink global="simpleValue" name="linkToGlobalResource" type="java.lang.Integer"/> </Context> <Context className="org.apache.catalina.core.StandardContext" cachingAllowed="true" charsetMapperClass="org.apache.catalina.util.CharsetMapper" cookies="true" crossContext="false" debug="0" displayName="Tomcat Documentation" docBase="F:\Program Files\Apache Group\Tomcat 4.1\webapps\tomcat-docs" mapperClass="org.apache.catalina.core.StandardContextMapper" path="/tomcat- docs" privileged="false" reloadable="false" swallowOutput="false" useNaming="true" wrapperClass="org.apache.catalina.core.StandardWrapper"> </Context> <Context className="org.apache.catalina.core.StandardContext" cachingAllowed="true" charsetMapperClass="org.apache.catalina.util.CharsetMapper" cookies="true" crossContext="false" debug="0" displayName="Tomcat Manager Application" docBase="../server/webapps/manager" mapperClass="org.apache.catalina.core.StandardContextMapper" path="/manager" privileged="true" reloadable="false" swallowOutput="false" useNaming="true" wrapperClass="org.apache.catalina.core.StandardWrapper"> <ResourceLink global="UserDatabase" name="users" type="org.apache.catalina.UserDatabase"/> </Context> <Context className="org.apache.catalina.core.StandardContext" cachingAllowed="true" charsetMapperClass="org.apache.catalina.util.CharsetMapper" cookies="true" crossContext="false" debug="0" displayName="Welcome to Tomcat" docBase="F:\Program Files\Apache Group\Tomcat 4.1\webapps\ROOT" mapperClass="org.apache.catalina.core.StandardContextMapper" path="" privileged="false" reloadable="false" swallowOutput="false" useNaming="true" wrapperClass="org.apache.catalina.core.StandardWrapper"> <Resource auth="Container" description="DB Connection" name="jdbc/CardAlertDB" scope="Shareable" type="javax.sql.DataSource"/> <Resource auth="Container" description="DB Connection" name="CardAlertDB" scope="Shareable" type="javax.sql.DataSource"/> </Context> <Logger className="org.apache.catalina.logger.FileLogger" debug="0" directory="logs" prefix="localhost_log." suffix=".txt" timestamp="true" verbosity="1"/> </Host> <Logger className="org.apache.catalina.logger.FileLogger" debug="0" directory="logs" prefix="catalina_log." suffix=".txt" timestamp="true" verbosity="1"/> <Realm className="org.apache.catalina.realm.UserDatabaseRealm" debug="0" resourceName="UserDatabase" validate="true"/> </Engine> </Service> </Server> My web.xml file =============== <?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>CardAlertDB</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>Container</res-auth> </resource-ref> </web-app> Can anybody help me regarding this? --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
