I'm trying to get a JNDI example running but I have run into trouble.
I'm using tomcat 4.0b3 on a RedHat Linux 6.2 box with JDK 1.3.0_02
I've created a servlet that tries to get the InitialContext in the init()
method but I always
get an exception when I run it. Here is the servlet:
import javax.naming.NamingException;
import javax.naming.NameNotFoundException;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.directory.InitialDirContext;
import javax.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class NamingServlet extends HttpServlet
{
public void init() throws ServletException
{
DataSource datasource = null;
InitialContext ic = null;
String DATASOURCE_NAME = "java:comp/env/jdbc/NamingDataSource";
try
{
ic = new InitialContext();
}
catch (NamingException ne)
{
throw new ServletException("Naming Exception while
instantiating an Initial
Context:\n" + ne.getMessage());
}
try
{
datasource = (DataSource)ic.lookup(DATASOURCE_NAME);
}
catch (NameNotFoundException ne)
{
throw new ServletException("NamingNotFound Exception while
looking up " +
DATASOURCE_NAME + ":\n" + ne.getMessage());
}
catch (NamingException ne)
{
throw new ServletException("Naming Exception while looking up
" +
DATASOURCE_NAME + ":\n" + ne.getMessage());
}
}
}
I copied the jndi.jar from catalina into my source lib directory. I'm using
Oracle 8.1.7
javax.sql package for the DataSource classes but I don't think this is
important since I'm
not even making it that far. Here's the exception I get when I access the
mapped URL
of http://localhost:8080/naming/naming :
javax.servlet.ServletException: Naming Exception while instantiating an Initial
Context:
Cannot instantiate class: org.apache.naming.java.javaURLContextFactory
at NamingServlet.init(NamingServlet.java:27)
at javax.servlet.GenericServlet.init(GenericServlet.java:258)
at
org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:802)
at
org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:583)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:231)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:879)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:225)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:879)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2175)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:446)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:879)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:162)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.valves.RequestDumperValve.invoke(RequestDumperValve.java:219)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:879)
at
org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:827)
at
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:904)
at java.lang.Thread.run(Thread.java:484)
I have the tomcat examples running, including the JNDI example, but I can't see
what I'm
doing that is different. The only vague clue that I have is the
class-not-found
exception for org.apache.naming.java.javaURLContextFactory but I don't know
where to
go from there.
Any help would be appreciated,
Kevin.
____________________________________________________________
Do You Yahoo!?
Get your free @yahoo.co.uk address at http://mail.yahoo.co.uk
or your free @yahoo.ie address at http://mail.yahoo.ie
