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:[EMAIL PROTECTED] Sent: 03 February 2004 09:41 To: [EMAIL 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 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.<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 . --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
