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EclipseLink/Examples/JPA/WebSphere7 Web Tutorial

< EclipseLink‎ | Examples‎ | JPA
Revision as of 18:33, 15 January 2009 by Unnamed Poltroon (Talk) (→‎References)

EclipseLink JPA Deployed on IBM WebSphere 7 using Eclipse WTP

Note: This tutorial' is under construction for the next week as of 20090115.


If you want to get a small web application running quickly on WebSphere 7.0 - the services provided by the Web Tools Project plugin in the Eclipse IDE can take care of the deployment details and set the server into debug mode for you.

This basic example details how to use Eclipse to run/debug a minimum J2EE web application servlet using EclipseLink JPA as the persistence provider. The goal of this example is to detail the minimum steps required to run EclipseLink inside the IBM WebSphere Application Server 7.0 server using the Eclipse IDE. At this point no presentation/controller layer such as JSF, Spring or Struts will be used beyond a basic HttpServlet so we can concentrate on the the integration layer JPA setup.

The DALI project was used to generate Entities from a schema with sequences already populated.

Development Environment

Software: Eclipse IDE for Java EE 3.4 Ganymede SR 1 (Oct 2008 +) IBM J9 JRE 1.6.0 build 2.4 20080816_22093.

Prerequisites

Install Eclipse EE

  • I installed a clean version of Eclipse Ganymede 3.4 EE Edition (Oct 2008)

Install a Database

Install WebSphere 7.0

I installed the commercial 7.0.0.1 version

Install WebSphere Eclipse 3.4 Server Plugin

We will first see if the WebSphere 6.0 or 6.1 plugin works with WebSphere 7.0 The WebSphere 6.1 Eclipse WTP server plugin is not shipped by default with Eclipse (WebSphere 6.0 for JEE 1.4 is).

  • Note: The WebSphere 6.1 plugin for Eclipse WTP is currently being developed - see the following Eclipse WTP enhancement request 160220 in progress.
  • We are not blocked from using Eclipse WTP to manage the WebSphere 6.1 server, but without this plugin we will need to attach manually to port 5005 of a running WebSphere server that was started in debug mode outside of the Eclipse IDE - we will use this alternate debug approach.

WebSphere Configuration Changes

JNDI Datasource Setup

Global Scoped Datasource Setup

Persistence JAR location

EclipseLink JAR location

JDBC JAR location

Create J2EE application

Persistence.xml

Publish EAR

Validating the WebSphere/EclipseLink configuration

Without eclipselink.jar reference

With eclipselink.jar reference

Perform CRUD operations: JPQL insert and query

Browser Output

References

http://www.ibm.com/developerworks/eclipse/downloads/ganymede/

http://www.ibm.com/developerworks/eclipse/downloads/ganymede/dev.html


Originated on build 20090115 - EclipseLink 1.1 M6 - Michael O'Brien

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