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Struts & Hibernate
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| | | an question occured during using tomcat5.0 | an question occured during using tomcat5.0 2004-02-03 - By Bodycombe, Andrew
Back
Tomcat does not expose it's JNDI resources to the outside world. Therefore
you cannot access any Tomcat Data Sources from an application outside
tomcat.
-- --Original Message-- --
From: asd [mailto:liurx_cn@(protected)]
Sent: 03 February 2004 09:41
To: tomcat-user@(protected)
Subject: an question occured during using tomcat5.0
All friends:
hello.
I had used DataSource accompanyed with tomcat5.I configured this Data
which named "JDBC/ORADB" via the web page
"http://localhost:8080/admin",everything was completed.then ,i retrieved
this DataSource on my client which is an application.
My core code of client is here:
java.util.Properties  .html>java.util.Properties java.util.Properties .java.html>' border=0> p = new java.util.Properties .html>java.util.Properties java.util.Properties .java.html>' border=0>();
p.put(
Context.INITIAL_CONTEXT_FACTORY,"org.apache.naming.factory.ResourceFactory ")
;
//p.put(
Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.fscontext.RefFSContextFactory"
);
p.put( Context.PROVIDER_URL,"http://localhost:8080");
// System.setProperty("java.naming.factory,initial",
"org.apache.catalina.users.MemoryUser ");
try {
Context context = new javax.naming.InitialContext ( p);
Context initCtx = ( Context)context.lookup("java:comp/env");
DataSource ds = ( DataSource) initCtx.lookup("JDBC/ORADB");
return ds;
} catch (NamingException e) {
e.printStackTrace();
return null;
}
but it failed.And the all err message like this :
javax.naming.NoInitialContextException : Cannot instantiate class:
org.apache.naming.factory.ResourceFactory Root exception is
java.lang.ClassCastException
at javax.naming.spi.NamingManager (NamingManager.java:649)
at javax.naming.InitialContext (InitialContext.java:243)
at javax.naming.InitialContext (InitialContext.java:219)
at javax.naming.InitialContext <init>(InitialContext.java:195)
at
com.airversal.cer.utility.service.ServiceImp.getDataSource(ServiceImp.java:4
8)
at com.ariversal.cer.debug.DSTest.main(DSTest.java:21)
i do not know what had happend.i look view some sample code on
www.apache.org. They all are too simple.Error occur with my try.
what had happend or how did i use datasource with tomcat5,i beg someone give
me some introduce and some advise .
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