I have searched on google and stackoverflow for this problem there are several questions but not resulting to particular solution and reason behind the cause. I am doing a project in JSF with context for my project defined in C:\apache-tomcat-6.0.32\conf\Catalina\localhost\ .
Also my in my web.xml I have following configuration:-
<context-param>
<description>Database server name</description>
<param-name>DATABASE</param-name>
<param-value>MYSQL</param-value>
</context-param>
<resource-ref>
<description>DB Connection</description>
<res-ref-name>jdbc/MySqlDS</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
Now The context file for this project is as follows:-
<Context path="/SMS" debug="5" reloadable="true" crossContext="true">
<Resource name="jdbc/MySqlDS" auth="Container"
type="javax.sql.DataSource" removeAbandoned="true"
removeAbandonedTimeout="30" maxActive="100"
maxIdle="30" maxWait="10000" username="root"
password=""
driverClassName="com.mysql.jdbc.Driver"
url="jdbc:mysql://localhost/rosebud"/>
</Context>
The code in My controller is :-
InitialContext initialContext = new InitialContext();
Context envContext = (Context)initialContext.lookup("java:/comp/env"); javax.sql.DataSource ds = (javax.sql.DataSource) envContext.lookup("jdbc/MySqlDS");
java.sql.Connection conn = ds.getConnection();
Here is my stacktrace:-
org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null' at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createConnectionFactory(BasicDataSource.java:1452) at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1371) at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044) at com.isys.common.navigation.dao.mysql.TmpNavDAOMySql.getConnection(TmpNavDAOMySql.java:91) at com.isys.common.navigation.dao.mysql.TmpNavDAOMySql.populateModels(TmpNavDAOMySql.java:114) at com.isys.common.navigation.dao.mysql.TmpNavDAOMySql.populateNavModules(TmpNavDAOMySql.java:19) at com.isys.common.navigation.dao.mysql.TmpNavDAOMySqlImpl.populateNavModules(TmpNavDAOMySqlImpl.java:11) at com.isys.common.navigation.controller.TmpNavGenerator.init(TmpNavGenerator.java:12) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1173) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:993) at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4420) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4733) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053) at org.apache.catalina.core.StandardHost.start(StandardHost.java:840) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463) at org.apache.catalina.core.StandardService.start(StandardService.java:525) at org.apache.catalina.core.StandardServer.start(StandardServer.java:754) at org.apache.catalina.startup.Catalina.start(Catalina.java:595) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414) Caused by: java.lang.NullPointerException at sun.jdbc.odbc.JdbcOdbcDriver.getProtocol(Unknown Source) at sun.jdbc.odbc.JdbcOdbcDriver.knownURL(Unknown Source) at sun.jdbc.odbc.JdbcOdbcDriver.acceptsURL(Unknown Source) at java.sql.DriverManager.getDriver(Unknown Source) at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createConnectionFactory(BasicDataSource.java:1437) ... 24 more
The configuration works fine if I run tomcat from outside eclipse but fails when ran from inside eclipse. What might be the cause??
