Tuesday, November 24, 2009
Full Kates Playground Sets
call a jsp ejb from Struts 1.x and Struts 2.x
java call an ejb from a servlet is extremely easy and is a of the facilities that we provide the ejb version 3, but since it is a jsp
the same because you have to call by
JNDI (as is not complicated)
first let's create our ejb.
package ejb;
import
javax.ejb.Remote;
@ Remote public interface {saludoRemote
public String greet ();}
------------------------------------ package ejb;
import
javax.ejb.Stateless;
@ Stateless (name = "saludoRemote") public class
saludoBean implements
saludoRemote {public String greet () {return
hello from ejb "}
} so we have the draft
now go to our web project
only good from a servlet to call by
have the option of right click insert code-> call
enterprise bean and select our ejb and we generate the following code
@ EJB private
saludoRemote saludoBean;
saves the @ EJB jndi use, this call has
also be outside of any method of the servlet class.
another observation that I found on the web is different in the implementation
and JBoss glassfish server at the time of lookup
take on different servers.
eg for jboss
Context context = new InitialContext ();
HelloWorld helloWorld = (HelloWorld) Context.lookup ( "HelloWorldBean / remote" )
example: for glassfish
Context context = new InitialContext ();
HelloWorld helloWorld = (HelloWorld) Context.lookup ( HelloWorld.class.getName () )
a contribution to java 
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