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| Before developing an application with Web Server, it is essential to install <span class="emphasis"><em>Web Server</em></span>, |
| an <span class="emphasis"><em>Integrated Development Environment</em></span> (IDE), and a build system integrated with Eclipse. |
| The IDE used here is the |
| Eclipse-based <span class="emphasis"><em>SpringSource Tool Suite</em></span> (STS), and |
| the build system used here is <span class="emphasis"><em>Apache Maven</em></span>. |
| </p><p>STS is supplied as a fully configured Eclipse IDE, with Virgo Web Server and Maven plugins built-in.</p><div class="section" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="installation.prereqs"></a>2.1 Pre-requisites</h2></div></div></div><p> |
| Before proceeding, ensure that a Java<span class="trademark"></span>™ Standard Edition Development Kit (JDK) |
| for Java 6 or later is installed and that the <code class="literal">JAVA_HOME</code> environment variable |
| is set to the root directory of the JDK. |
| (<span class="emphasis"><em>A Java Runtime Environment (JRE) alone is not sufficient, |
| a development kit is necessary to use the facilities in STS.</em></span>) |
| </p><p> |
| To verify this, issue the command <code class="literal">"%JAVA_HOME%"\bin\java -version</code> from |
| a command prompt on Windows (or <code class="literal">$JAVA_HOME/bin/java -version</code> from a terminal window on UNIX) |
| and ensure that the command completes successfully and reports |
| a Java version <code class="literal">1.6.</code><span class="emphasis"><em>x</em></span> (denoting Java 6) or greater. |
| </p><p> |
| Also issue the command <code class="literal">"%JAVA_HOME%"\bin\jar</code> to ensure that there is a means of |
| extracting files from zip archives. |
| If the <code class="literal">jar</code> command is unavailable, download and install a suitable zip program |
| such as <code class="literal">7zip</code>, <code class="literal">gzip</code>, or <code class="literal">WinZip</code>. |
| This is most relevant for Windows operating systems where the inbuilt zip extraction utility may |
| not handle long pathnames correctly. |
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