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I am using Maven 2 to build my Java project and I am looking for a way to present the current version number of the pom.xml to the user (using a Servlet or JSP for example).
As far as I can see, the best way would be that Maven packages the version number as a text file into the WAR. This allows me to read the version from that file and present it the way I want.
Does anyone know of a plugin that can do something like that for me? Maybe the WAR plugin can be configured to do so? Or maybe using some other approach all together?
630
I solved this problem a little differently, as I had a desire to display version, svn revision, etc. on the index page of a service. I used the buildnumber-maven-plugin and the war-plugin to store the values in the manifest.
pom.xml snippet:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>buildnumber-maven-plugin</artifactId>
<executions>
<execution>
<phase>validate</phase>
<goals>
<goal>create</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<archive>
<manifest>
<addDefaultImplementationEntries>true</addDefaultImplementationEntries>
</manifest>
<manifestEntries>
<Implementation-Environment>${env}</Implementation-Environment>
<Implementation-Build>${buildNumber}</Implementation-Build>
</manifestEntries>
</archive>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>war</goal>
</goals>
<configuration>
<classifier>${env}</classifier>
</configuration>
</execution>
</executions>
</plugin>
The JSP to pull them out was fairly trivial:
<%@ page language="java" pageEncoding="UTF-8"%>
<%
java.util.jar.Manifest manifest = new java.util.jar.Manifest();
manifest.read(pageContext.getServletContext().getResourceAsStream("/META-INF/MANIFEST.MF"));
java.util.jar.Attributes attributes = manifest.getMainAttributes();
%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Health Check</title>
</head>
<body>
<h1>Health Check</h1>
<h2>Version: <%=attributes.getValue("Implementation-Version")%>-<%=attributes.getValue("Implementation-Environment")%></h2>
<h2>SVN Revision: <%=attributes.getValue("Implementation-Build")%></h2>
</body>
</html>
This displayed something like:
Version: 2.0.1-SNAPSHOT-QA
SVN Revision: 932
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