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1. Re: how to access more than one EJB containers in one JSP
alrubinger Jun 10, 2007 9:52 AM (in response to shupingchen)Haven't checked this in an IDE or anything, but this should get you the idea. Keeping in mind that business functions like obtaining and calling upon EJB3 services shouldn't really be taking place in the view layer...
<%! private YourEjbInterface1 ejb1 = null; private YourEjbInterface2 ejb2 = null; public void jspInit () { try { // Define the Connection Properties Properties props1 = new Properties(); props1.put(InitialContext.INITIAL_CONTEXT_FACTORY,"org.jnp.interfaces.NamingContextFactory"); props1.put(InitialContext.PROVIDER_URL, "jnp://yourHost1:yourPort1"); props1.put(InitialContext.URL_PKG_PREFIXES,"org.jboss.naming:org.jnp.interfaces"); Properties props2 = new Properties(); props2.put(InitialContext.INITIAL_CONTEXT_FACTORY,"org.jnp.interfaces.NamingContextFactory"); props2.put(InitialContext.PROVIDER_URL, "jnp://yourHost2:yourPort2"); props2.put(InitialContext.URL_PKG_PREFIXES,"org.jboss.naming:org.jnp.interfaces"); // Define the Context for Servers Context ctx1 = new InitialContext(props1); Context ctx2 = new InitialContext(props2); // Look up the EJB3 Proxies in JNDI ejb1 = (YourEjbInterface1) ctx.lookup("ejb1/jndi/name"); ejb2 = (YourEjbInterface2) ctx.lookup("ejb2/jndi/name"); } catch (Exception e) { e.printStackTrace (); } } %> Invoke 1: <% ejb1.myMethod(); %> Invoke 2: <% ejb2.myMethod(); %>
S,
ALR -
2. Re: how to access more than one EJB containers in one JSP
shupingchen Jun 12, 2007 5:48 AM (in response to shupingchen)thank you very much.
I have another question. I want to access two EJB containers in a servlet class. Can I use the functionality of dependecy injection? -
3. Re: how to access more than one EJB containers in one JSP
alrubinger Jun 12, 2007 6:13 AM (in response to shupingchen)You can use Injection in Servlets in the JBoss 5.0.x Beta Series, just not in 4.2 and below; they're not JEE5-conforming implementations.
S,
ALR -
4. Re: how to access more than one EJB containers in one JSP
alrubinger Jun 12, 2007 6:14 AM (in response to shupingchen)Sorry, fullr read your questions.
With injection, you'd be limited to injecting services that are within the same container.
S,
ALR