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EJB 3.1 remote access + Jboss 7.3 +JPA

I have created a EJB 3.1 application which uses remoting EJB project jar is deployed on Jboss application and Web project Client war is deployed on Tomcat server both the servers are running on different machine and used JPA for database operation in EJB project which is lookup from Web Project deployed on tomcat.
Can somebody suggest me how i can get reference of data source in remote client application and run a select query on that reference.
Below link i have used for reference.
URL: https://tutorialsjoint.com/ejb-stateless-implementation-using-remote-jndi-lookup/

This is no longer possible.
It was possible to give a JNDI name to the datasource that could be access from remote until JBoss EAP 5.

Running EJB 2.1 on Wildfly 10

I want to run EJB 2.1 with Wildfly-10 AS
I have a server running on jBoss-EAP-6.2
Following are the configuration xml files
I wanna achieve to run a Web Module (JSF) with existing server (EJB 2.1) running on JBoss-EAP-6.2.
Following are the ideas
I can run JSF on JBoss-EAP-6.2 (possible?) that can communicate with EJB within the server
Deploy JSF on wildfly and it communicate with EJB through JBoss-EAP-6.2
MORE / FINDINGS
while deploying JSF on JBoss-6, I am getting blank page on opening, noting is shown
Wildfly does not support CMP files of EJB 2.1
The Idea
We have a desktop based [swing] application running on JDK 1.7, EJB 2.1, JBoss-EAP-6.2. I want to enable/implement its web module [JSF]
I want to reuse its server [EJB].
My idea is to use EJB 2.1 with JSF on Wildfly or deploy JSF to connect EJB on JBoss-EAP-6.2.

Try to migrate from EJB2.1 to new EJB3.x. I understand that it will be really a hard way, but it will be easier to extend this application further. Then you will be able to easily write your web module on JSF within WildFly 10.
Start new server instance of WildFly 10 and try to use remote EJB2.x interfaces within it to access business logic. And then use it to build your web module.
Develop REST facade on top of your EJB on jBoss-EAP and then use it the way you want it.
Start writing from scratch with new technologies.

Is it possible to consume a web service deployed in glassfish by an application on client side using apache tomcat?

this may be two questions in one, so...Sorry, please correct me if I'm wrong.
I have to deploy a web service developed with JPA, JSP and Glassfish 3.1.2, in a machine which only has apache Tomcat 7 as server installed on Windows 7.
I don't really know how apache can connect to the database externally, or if that is really possible if you don't use TomEE.
I know in Glassfish you can have a connection pool and a jdbc resource, and if you're using JPA, that's how the connection to database works(kindof), so you can deploy the .war file. But, if you only have a Tomcat and the app is using JPA, so it does not connect itself to the database(It does not have a class with a connection credentials), How can I achieve this?
Or, Can I deploy the .war of the web service on Glassfish and then be consumed by an application that only works with apache Tomcat on client side? Am I mixing concepts which should not be mixed?
Any enlightenment is highly appreciated.

You can use Tomcat with JPA, you can even use it in a standalone java application. Define a persistence unit name in persistence.xml, make sure the transaction type is RESOURCE_LOCAL (you can't use JTA in Tomcat, make sure to check this), and get a reference to the EM using the following
EntityManagerFactory emf = Persistence.createEntityManagerFactory("persistenceUnitName");
em = emf.createEntityManager();
Finally, add the jpa provider jars to Tomcat, there are examples for that (I've never done it, but I'm sure some Tomcat expert could lend a hand)
The other option could also work, that is consume your webservice using a client deployed on another server
Good luck!

If your application uses advanced Java EE functionality (JTA, CDI), it won't work on Tomcat. If it uses JSTL, you will have to add a JSTL library to the tomcat installation. Read the docs, it should be stated somewhere, but I would not simply deploy the war to a tomcat.
If you just want to develop a relay webapp that consumes a webservice and displays the results, it will run on tomcat independantly of where the webservice runs.

Create Entity Class from Remote Database (through connection)

I am using Netbeans 7.3.1, working on CloudBees host infrastructure (JBoss 7).
In the Services panel, I have created a connection to the remote MySQL database. I also added the persistence.xml information provided in CloudBees management page into EJB module project.
I want to create EJB Entity class but because it is remote resource, Netbeans cannot understand it at development time (no local database is present).
Is there anyway to generate a Entity Class from a Service's connection, or create datasource from that connection?

looks more like a NetBeans question. Any JavaEE application using a JNDI datasource will have the same issue

Does EJB need a dedicated server in order to be used?

I am new to Java EE. Does EJB need a dedicated server in order to be used or can I potentially make a Java EE application simulation on my laptop via only a web server?

EJB need an application server like JBoss, WebSphere, WebLogic, GlassFish, etc.
Pure web servers like Tomcat or Jetty cannot run EJB.
All application servers can also function as a web server.
So the answer to your question is - no, you can't run EJB only via a web server but yes, you can run an application server on your laptop and use it to run web and EJBs.
A more technical explanation is that you need an EJB container to run EJBs and a web container to run servlets and JSPs. A web server has only a web container. An application server has both.

You need an EJB container to run EJB with all the features (i.e. transaction, security etc.). But if you are are using EJB3 you can use something like ejb3unit to unit test the functionality of the EJB classes.
http://ejb3unit.sourceforge.net/

You need a EJB container to run EJB applications. However, it is easy to run one on your computer, just as it is easy to run Apache server for HTML/PHP applications. Glassfish is an example server which contains an EJB container.
If you only want the EntityManager functionality from EJBs, then you can simply use Java SE. See here.