无法从 Swing 客户端创建初始上下文

Question

Please see the code below:

try {
            //InitialContext ic = new InitialContext();
            Hashtable env = new Hashtable();
            env.put(Context.INITIAL_CONTEXT_FACTORY,  
             "com.sun.enterprise.naming.SerialInitContextFactory");
            Context ctx = new InitialContext(env);      

            MySessionRemote hb = (MySessionRemote) ctx.lookup("MySessionRemote");
            System.out.println(hb.getResult());
        } catch (NamingException ex) {
            ex.printStackTrace();
        }

The error I get from a Swing app is :(javax.naming.NoInitialContextException) javax.naming.NoInitialContextException: Cannot instantiate class: com.sun.enterprise.naming.SerialInitContextFactory [Root exception is java.lang.ClassNotFoundException: com.sun.enterprise.naming.SerialInitContextFactory]

I have not worked with Java for a while so this could be quite straightforward.

Update

I am using version 4.1 of Glassfish. I have added references to the following jars inside the NetBeans project:

appserv-rt.jar
gf-client.jar
javaee.jar

I can now get an InitialContext. However, I cannot lookup the bean ie this line fails:

MySessionRemote hb = (MySessionRemote) ctx.lookup("ejb.MySessionRemote");

The exception is a NamingException ie Lookup Failed . I believe the name of the bean may be wrong. Here is the bean:

package ejb;

import javax.annotation.Resource;
import javax.ejb.Remote;
@Resource(name = "MySessionRemote")
@Remote
public interface MySessionRemote {
    public String getResult();
}

What should the name of the bean be?

Answer 1

Which application server are you using? Eg when using Glassfish that class can be found in the glassfish-naming.jar file. That JAR needs to be on your classpath. I assume other application servers have a similar JAR file.

In fact, when you have that JAR on your classpath you could simply use the no-args constructor of InitialContext since the JAR already contains a jndi.properties file with the following content:

java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory
java.naming.factory.url.pkgs=com.sun.enterprise.naming
# Required to add a javax.naming.spi.StateFactory for CosNaming that
# supports dynamic RMI-IIOP.
java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl