How to show java web project version using Maven

1. Pom.xml

<maven.build.timestamp.format>yyyy-MM-dd HH:mm</maven.build.timestamp.format>

<plugin>

<artifactId>maven-war-plugin</artifactId>

<groupId>org.apache.maven.plugins</groupId>

<version>2.1.1</version>

<configuration>

<archive>

<manifestEntries>

<SCM-Revision>${maven.build.timestamp}</SCM-Revision>

</manifestEntries>

</archive>

</configuration>

</plugin>

2. Java code.

public static String getProjectVersion() {

ServletContext application = Sessions.getCurrent().getWebApp().getServletContext();

InputStream inputStream = application.getResourceAsStream("/META-INF/MANIFEST.MF");

Manifest manifest;

try {

manifest = new Manifest(inputStream);

Attributes attr = manifest.getMainAttributes();

return attr.getValue("SCM-Revision");

} catch (IOException e) {

e.printStackTrace();

}

return "";

}

MAVEN plugin for pom.xml

1. Tomcat start with mvn command.

 <plugin>
<groupid>org.apache.tomcat.maven</groupid>
<artifactid>tomcat7-maven-plugin</artifactid>
<version>2.2</version>
</plugin>

command: 

mvn tomcat7:run

2. For compile sleeted java version.

<plugin>

<artifactId>maven-compiler-plugin</artifactId>

<configuration>

<source>1.7</source>

<target>1.7</target>

</configuration>

</plugin>

3. For avoiding Dwtpversion=2.0

<plugin>

<groupId>org.apache.maven.plugins</groupId>

<artifactId>maven-eclipse-plugin</artifactId>

<version>2.8</version>

<configuration>

<downloadSources>true</downloadSources>

<downloadJavadocs>false</downloadJavadocs>

<wtpversion>2.0</wtpversion>

</configuration>

</plugin>

Before :

mvn eclipse:eclipse --> Eclipse Java project (JAR)

mvn eclipse:eclipse -Dwtpversion=2.0 --> Eclipse Java web project (WAR)

Now:

mvn eclipse:eclipse --> Eclipse Java web project