an question occured during using tomcat5.0
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Posted By:   a_sd
Posted On:   Tuesday, February 3, 2004 02:42 AM

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 p = new java.util.Properties(); 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.fact   More>>
			
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 p = new java.util.Properties();

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.getInitialContext(NamingManager.java:649)

at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243)

at javax.naming.InitialContext.init(InitialContext.java:219)

at javax.naming.InitialContext. (InitialContext.java:195)

at com.airversal.cer.utility.service.ServiceImp.getDataSource(ServiceImp.java:48)

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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Re: an question occured during using tomcat5.0

Posted By:   a_sd  
Posted On:   Thursday, February 5, 2004 02:38 AM

nobody noticed this topic£¿ :-(
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