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<!DOCTYPE html>
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<title>Java EE 7 Hands-on Lab</title>
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<body class="book">
<div id="header">
<h1>Java EE 7 Hands-on Lab</h1>
<span id="author" class="author">Arun Gupta</span><br>
<span id="email" class="email"><a href="https://twitter.com/arungupta">@arungupta</a></span><br>
<span id="revnumber">version 2.1,</span>
<span id="revdate">Jun 25, 2014</span>
<div id="toc" class="toc">
<div id="toctitle">Table of Contents</div>
<ul class="sectlevel1">
<li><a href="#_introduction">1. Introduction</a></li>
<li>
<ul class="sectlevel2">
<li><a href="#_software_requirement">1.1. Software Requirement</a></li>
</ul>
</li>
<li><a href="#_problem_statement">2. Problem Statement</a></li>
<li>
<ul class="sectlevel2">
<li><a href="#_lab_flow">2.1. Lab Flow</a></li>
<li><a href="#_estimated_time">2.2. Estimated Time</a></li>
</ul>
</li>
<li><a href="#walk-through">3. Walk-through of Sample Application</a></li>
<li><a href="#websocket">4. Chat Room (Java API for WebSocket)</a></li>
<li><a href="#batch">5. Ticket Sales (Batch Applications for the Java Platform)</a></li>
<li><a href="#jaxrs">6. View and Delete Movie (Java API for RESTful Web Services)</a></li>
<li><a href="#json">7. Add Movie (Java API for JSON Processing)</a></li>
<li><a href="#jms">8. Movie Points (Java Message Service)</a></li>
<li><a href="#jsf">9. Show Booking (JavaServer Faces)</a></li>
<li><a href="#_conclusion">10. Conclusion</a></li>
<li><a href="#_troubleshooting">11. Troubleshooting</a></li>
<li><a href="#_acknowledgements">12. Acknowledgements</a></li>
<li><a href="#_completed_solutions">13. Completed Solutions</a></li>
<li><a href="#_todo">14. TODO</a></li>
<li><a href="#_revision_history">15. Revision History</a></li>
<li><a href="#_appendix">16. Appendix A: Appendix</a></li>
<li>
<ul class="sectlevel2">
<li><a href="#appendix-wildfly-netbeans">16.1. Configure WildFly 8 in NetBeans</a></li>
<li>
<ul class="sectlevel3">
<li><a href="#install-wildfly-plugin">16.1.1. Install WildFly plugin</a></li>
<li><a href="#_configure_wildfly_8">16.1.2. Configure WildFly 8</a></li>
</ul>
</li>
<li><a href="#appendix-wildfly-idea">16.2. Prepare IntelliJ IDEA for working with WildFly 8</a></li>
<li>
<ul class="sectlevel3">
<li><a href="#specify-jdk-wildfly-idea">16.2.1. Specify the JDK</a></li>
<li><a href="#define-wildfly-idea">16.2.2. Define WildFly</a></li>
<li><a href="#create-project-wildfly-idea">16.2.3. Create a project</a></li>
<li><a href="#create-run-config-wildfly-idea">16.2.4. Create a run/debug configuration</a></li>
<li><a href="#run-app-wildfly-idea">16.2.5. Run the application</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</div>
<div id="content">
<div class="sect1">
<h2 id="_introduction">1. Introduction</h2>
<div class="sectionbody">
<div class="paragraph">
<p>The Java EE 7 platform continues the ease of development push that
characterized prior releases by bringing further simplification to
enterprise development. It adds new and important APIs such as the REST
client API in JAX-RS 2.0 and the long awaited Batch Processing API. Java
Message Service 2.0 has undergone an extreme makeover to align with the
improvements in the Java language. There are plenty of improvements to
several other components. Newer web standards like HTML 5, WebSocket,
and JSON processing are embraced to build modern web applications.</p>
</div>
<div class="paragraph">
<p>This hands-on lab will build a typical 3-tier end-to-end application
using the following Java EE 7 technologies:</p>
</div>
<div class="ulist">
<ul>
<li>
<p>Java API for WebSocket 1.0 (JSR 356)</p>
</li>
<li>
<p>Batch Applications for the Java Platform 1.0 (JSR 352)</p>
</li>
<li>
<p>Java API for JSON Processing 1.0 (JSR 353)</p>
</li>
<li>
<p>Java API for RESTful Web Services 2.0 (JSR 339)</p>
</li>
<li>
<p>Java Message Service 2.0 (JSR 343)</p>
</li>
<li>
<p>Java Persistence API 2.1 (JSR 338)</p>
</li>
<li>
<p>JavaServer Faces 2.2 (JSR 344)</p>
</li>
<li>
<p>Contexts and Dependency Injection 1.1 (JSR 346)</p>
</li>
<li>
<p>Bean Validation 1.1 (JSR 349)</p>
</li>
<li>
<p>Java Transaction API 1.2 (JSR 907)</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>Together these APIs will allow you to be more productive by simplifying enterprise development.</p>
</div>
<div class="paragraph">
<p>The latest version of this document can be downloaded from <a href="https://github.com/javaee-samples/javaee7-hol/blob/master/docs/asciidoc/javaee7-hol.html">javaee7-hol.html</a>. Please file issues or send pull requests for any updates.</p>
</div>
<div class="sect2">
<h3 id="_software_requirement">1.1. Software Requirement</h3>
<div class="paragraph">
<p>The following software needs to be downloaded and installed:</p>
</div>
<div class="ulist">
<ul>
<li>
<p>JDK 7 from
<a href="http://www.oracle.com/technetwork/java/javase/downloads/index.html">http://www.oracle.com/technetwork/java/javase/downloads/index.html</a>.</p>
</li>
<li>
<p><strong>Application Server</strong>: This lab can use WildFly 8 or GlassFish 4 as the application server. This document provides instructions for
WildFly 8.</p>
</li>
<li>
<p><strong>IDE</strong>: NetBeans 8.0+, JBoss Developer Studio (Eclipse-based), or IntelliJ IDEA 13 can be used. This document provides instructions for
NetBeans 8.</p>
<div class="paragraph">
<p>Download “All” or “Java EE” version from
<a href="http://netbeans.org/downloads/">http://netbeans.org/downloads/</a>. A
snapshot of the downloads page is shown and highlights the exact
‘Download’ button to be clicked.</p>
</div>
<div class="imageblock">
<div class="content">
<img src="images/1.1-netbeans-download.png" alt="1.1 netbeans download">
</div>
<div class="title">Figure 1. NetBeans download</div>
</div>
<div class="paragraph">
<p>WildFly 8 needs to be downloaded from <a href="http://wildfly.org/downloads/">wildfly.org</a> and configured in NetBeans IDE following the instructions in <a href="#appendix-wildfly-netbeans">Configure WildFly 8 in NetBeans</a>.</p>
</div>
<div class="admonitionblock tip">
<table>
<tr>
<td class="icon">
<div class="title">Tip</div>
</td>
<td class="content">
<a href="#appendix-wildfly-idea">Prepare IntelliJ IDEA for working with WildFly 8</a> explains how to configure WildFly in IntelliJ IDEA.
</td>
</tr>
</table>
</div>
</li>
</ul>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_problem_statement">2. Problem Statement</h2>
<div class="sectionbody">
<div class="paragraph">
<p>This hands-on lab builds a typical 3-tier Java EE 7 Web application that
allows customers to view the show timings for a movie in a 7-theater
Cineplex and make reservations. Users can add new movies and delete
existing movies. Customers can discuss the movie in a chat room. Total
sales from each showing are calculated at the end of the day. Customers
also accrue points for watching movies.</p>
</div>
<div class="imageblock">
<div class="content">
<img src="images/2.0-problem-statement.png" alt="2.0 problem statement">
</div>
<div class="title">Figure 2. Architecture diagram</div>
</div>
<div class="paragraph">
<p>This figure shows the key components of the application. The User
Interface initiates all the flows in the application. Show Booking,
Add/Delete Movie and Ticket Sales interact with the database; Movie
Points may interact with the database, however, this is out of scope for
this application; and Chat Room does not interact with the database.</p>
</div>
<div class="paragraph">
<p>The different functions of the application, as detailed above, utilize
various Java technologies and web standards in their implementation. The
following figure shows how Java EE technologies are used in different
flows.</p>
</div>
<div class="imageblock">
<div class="content">
<img src="images/2.0-technologies.png" alt="2.0 technologies">
</div>
<div class="title">Figure 3. Technologies used in the application</div>
</div>
<div class="paragraph">
<p>The table below details the components and the selected technology used
in its’ implementation.</p>
</div>
<table class="tableblock frame-all grid-all" style="width:100%; ">
<colgroup>
<col style="width:20%;">
<col style="width:80%;">
</colgroup>
<thead>
<tr>
<th class="tableblock halign-left valign-top">Flow</th>
<th class="tableblock halign-left valign-top">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">User Interface</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">Written entirely in <em>JavaServer Faces</em> (JSF)</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">Chat Room</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">Utilizes client-side JavaScript and JSON to communicate with a <em>WebSocket</em> endpoint</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">Ticket Sales</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">Uses <em>Batch Applications for the Java Platform</em> to calculate the total
sales and persist to the database.</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">Add/Delete Movie</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">Implemented using RESTful Web Services. JSON is used as on-the-wire data format</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">Movie Points</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">Uses <em>Java Message Service</em> (JMS) to update and obtain loyalty reward
points; an optional implementation using database technology may be
performed</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">Show Booking</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">Uses lightweight <em>Enterprise JavaBeans</em> to communicate with the database
using Java Persistence API</p></td>
</tr>
</tbody>
</table>
<div class="paragraph">
<p>This document is not a comprehensive tutorial of Java EE. The attendees
are expected to know the basic Java EE concepts such as EJB, JPA,
JAX-RS, and CDI. The <a href="http://docs.oracle.com/javaee/7/tutorial/doc/">Java
EE 7 Tutorial</a> is a good place to learn all these concepts. However
enough explanation is provided in this guide to get you started with the
application.</p>
</div>
<div class="admonitionblock warning">
<table>
<tr>
<td class="icon">
<div class="title">Warning</div>
</td>
<td class="content">
This is a sample application and the code may not be
following the best practices to prevent SQL injection, cross-side
scripting attacks, escaping parameters, and other similar features
expected of a robust enterprise application. This is intentional such as
to stay focused on explaining the technology. It is highly recommended
to make sure that the code copied from this sample application is
updated to meet those requirements.
</td>
</tr>
</table>
</div>
<div class="sect2">
<h3 id="_lab_flow">2.1. Lab Flow</h3>
<div class="paragraph">
<p>The attendees will start with an existing maven application and by
following the instructions and guidance provided by this lab they will:</p>
</div>
<div class="ulist">
<ul>
<li>
<p>Read existing source code to gain an understanding of the structure of
the application and use of the selected platform technologies.</p>
</li>
<li>
<p>Add new and update existing code with provided fragments in order to
demonstrate usage of different technology stacks in the Java EE 7
platform.</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>While you are copy/pasting the code from this document into NetBeans,
here are couple of tips that will be really useful and make your
experience enjoyable!</p>
</div>
<div class="dlist">
<dl>
<dt class="hdlist1">Source Code Formatting</dt>
<dd>
<p>NetBeans provides capability to neatly format the source code
following conventions. This can be done for any type of source code,
whether its XML or Java or something else. It is highly recommended to
use this functionality after the code is copy/pasted from this document
to the editor. This keeps the code legible.</p>
<div class="openblock">
<div class="content">
<div class="paragraph">
<p>This functionality can be accessed by right-clicking in the editor pane
and selecting “Format” as shown.</p>
</div>
<div class="imageblock">
<div class="content">
<img src="images/2.1-format.png" alt="2.1 format">
</div>
<div class="title">Figure 4. Format code in NetBeans</div>
</div>
<div class="paragraph">
<p>This functionality is also accessible using the following keyboard
shortcuts:</p>
</div>
<table class="tableblock frame-all grid-all" style="width:50%; ">
<colgroup>
<col style="width:50%;">
<col style="width:50%;">
</colgroup>
<thead>
<tr>
<th class="tableblock halign-left valign-top">Shortcut</th>
<th class="tableblock halign-left valign-top">Operating System</th>
</tr>
</thead>
<tbody>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><kbd class="keyseq"><kbd>Ctrl</kbd>+<kbd>Shift</kbd>+<kbd>F</kbd></kbd></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">OSX</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><kbd class="keyseq"><kbd>Alt</kbd>+<kbd>Shift</kbd>+<kbd>F</kbd></kbd></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">Windows</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><kbd class="keyseq"><kbd>Alt</kbd>+<kbd>Shift</kbd>+<kbd>F</kbd></kbd></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">Linux</p></td>
</tr>
</tbody>
</table>
</div>
</div>
</dd>
<dt class="hdlist1">Automatic Imports</dt>
<dd>
<p>Copy/pasting the Java code from this document in NetBeans editor does
not auto-import the classes. This is required to be done manually in
order for the classes to compile. This can be fixed for each missing
import statement by clicking on the yellow bulb shown in the side bar.</p>
<div class="openblock">
<div class="content">
<div class="imageblock">
<div class="content">
<img src="images/2.1-server-endpoint.png" alt="2.1 server endpoint">
</div>
<div class="title">Figure 5. ServerEndpoint import</div>
</div>
<div class="paragraph">
<p>Alternatively all the imports can be resolved by right-clicking on the
editor pane and selecting “Fix Imports” as shown.</p>
</div>
<div class="imageblock">
<div class="content">
<img src="images/2.1-fix-imports.png" alt="2.1 fix imports">
</div>
<div class="title">Figure 6. Fix Imports in NetBeans</div>
</div>
<div class="paragraph">
<p>This functionality is also accessible using the following keyboard
shortcuts:</p>
</div>
<table class="tableblock frame-all grid-all" style="width:50%; ">
<colgroup>
<col style="width:50%;">
<col style="width:50%;">
</colgroup>
<thead>
<tr>
<th class="tableblock halign-left valign-top">Shortcut</th>
<th class="tableblock halign-left valign-top">Operating System</th>
</tr>
</thead>
<tbody>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><kbd class="keyseq"><kbd>Command</kbd>+<kbd>Shift</kbd>+<kbd>I</kbd></kbd></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">OSX</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><kbd class="keyseq"><kbd>Ctrl</kbd>+<kbd>Shift</kbd>+<kbd>I</kbd></kbd></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">Windows</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><kbd class="keyseq"><kbd>Ctrl</kbd>+<kbd>Shift</kbd>+<kbd>I</kbd></kbd></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">Linux</p></td>
</tr>
</tbody>
</table>
<div class="paragraph">
<p>The defaults may work in most of the cases. Choices are shown in case a
class is available to import from multiple packages. If multiple
packages are available then specific packages to import from are clearly
marked in the document.</p>
</div>
</div>
</div>
</dd>
</dl>
</div>
</div>
<div class="sect2">
<h3 id="_estimated_time">2.2. Estimated Time</h3>
<div class="paragraph">
<p>Following the complete instructions in this document can take any where
from two to four hours. The wide time range accommodates for learning
the new technologies, finding your way in NetBeans, copy/pasting the
code, and debugging the errors.</p>
</div>
<div class="paragraph">
<p>The recommended flow is where you follow through the instructions in all
sections in the listed sequence. Alternatively, you may like to cover
section <a href="#walk-through">Walk-through of Sample Application</a> through <a href="#jsf">Show Booking (JavaServer Faces)</a> in an order of your choice, based upon your
interest and preference of the technology. However section <a href="#jaxrs">View and Delete Movie (Java API for RESTful Web Services)</a> is a
pre-requisite for <a href="#json">Add Movie (Java API for JSON Processing)</a>.</p>
</div>
<div class="paragraph">
<p>Here is an approximate time estimate for each section:</p>
</div>
<table class="tableblock frame-all grid-all" style="width:100%; ">
<colgroup>
<col style="width:66%;">
<col style="width:33%;">
</colgroup>
<thead>
<tr>
<th class="tableblock halign-left valign-top">Section Title</th>
<th class="tableblock halign-left valign-top">Estimated Time</th>
</tr>
</thead>
<tbody>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="#walk-through">Walk-through of Sample Application</a></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">15 - 30 mins</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="#websocket">Chat Room (Java API for WebSocket)</a></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">30 - 45 mins</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="#batch">Ticket Sales (Batch Applications for the Java Platform)</a></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">30 - 45 mins</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="#jaxrs">View and Delete Movie (Java API for RESTful Web Services)</a></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">30 - 45 mins</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="#json">Add Movie (Java API for JSON Processing)</a></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">30 - 45 mins</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="#jms">Movie Points (Java Message Service)</a></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">30 - 45 mins</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="#jsf">Show Booking (JavaServer Faces)</a></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">30 - 45 mins</p></td>
</tr>
</tbody>
</table>
<div class="paragraph">
<p>The listed time for each section is only an estimate and by no means
restrict you within that. These sections have been completed in much
shorter time, and you can do it too!</p>
</div>
<div class="admonitionblock tip">
<table>
<tr>
<td class="icon">
<div class="title">Tip</div>
</td>
<td class="content">
The listed time for each section also allows you to create a custom
version of the lab depending upon your target audience and available
time.
</td>
</tr>
</table>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="walk-through">3. Walk-through of Sample Application</h2>
<div class="sectionbody">
<div class="paragraph">
<p><strong>Purpose</strong>: This section will download the sample application to be used
in this hands-on lab. A walk-through of the application will be
performed to provide an understanding of the application architecture.</p>
</div>
<div class="paragraph">
<p><strong>Estimated Time</strong>: 15-30 mins</p>
</div>
<div class="olist arabic">
<ol class="arabic">
<li>
<p>Download the sample application from
<a href="https://github.com/javaee-samples/javaee7-hol/blob/master/starting-template/movieplex7-starting-template.zip?raw=true">movieplex7-starting-template.zip</a>
and unzip. This will create a ‘movieplex7’ directory and unzips all the
content there.</p>
</li>
<li>
<p>In NetBeans IDE, select ‘File’, ‘Open Project’, select the
unzipped directory, and click on ‘Open Project’. The project structure
is shown.</p>
<div class="imageblock">
<div class="content">
<img src="images/3.2-project-structure.png" alt="3.2 project structure">
</div>
<div class="title">Figure 7. Project structure in NetBeans</div>
</div>
</li>
<li>
<p>Maven Coordinates: Expand ‘Project Files’ and double click on
‘pom.xml’. In the ‘pom.xml’, the Java EE 7 API is specified as a
<dependency>:</p>
<div class="openblock">
<div class="content">
<div class="listingblock">
<div class="content">
<pre class="CodeRay"><code class="xml language-xml"><span class="tag"><dependencies></span>
<span class="tag"><dependency></span>
<span class="tag"><groupId></span>javax<span class="tag"></groupId></span>