Today I will show you a way to export a <packaging>war</packaging> artifact as a runnable windows application.
The ingredients are:
- maven war artifact (i.e. our web application)
- embedded Jetty
A minimal web application’s pom looks like this:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>de.ahoehma</groupId>
<artifactId>dummy-webapp</artifactId>
<version>1.0.0-SNAPSHOT</version>
<packaging>war</packaging>
</project>
Now we add some components to the artifact …
1. add the following profile to the pom.xml:
<profiles>
<profile>
<id>jetty-offline</id>
<build>
<plugins>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.2-beta-5</version>
<configuration>
<finalName>offline-dummy-webapp-${project.version}</finalName>
<attach>false</attach>
<descriptors>
<descriptor>src/assembly/jetty-offline.xml</descriptor>
</descriptors>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<!-- logging ... -->
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.15</version>
<scope>runtime</scope>
</dependency>
<!-- embedded jetty -->
<dependency>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty</artifactId>
<version>${jetty.version}</version>
</dependency>
<dependency>
<groupId>org.mortbay.jetty</groupId>
<artifactId>start</artifactId>
<version>${jetty.version}</version>
</dependency>
<dependency>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-util</artifactId>
<version>${jetty.version}</version>
</dependency>
<dependency>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jsp-2.1-jetty</artifactId>
<version>${jetty.version}</version>
</dependency>
</dependencies>
<properties>
<jetty.version>6.1.23</jetty.version>
</properties>
</profile>
</profiles>
2. the assembly descriptor for src/assembly/jetty-offline is here:
<?xml version="1.0" encoding="UTF-8"?>
<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.1"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.1 http://maven.apache.org/xsd/assembly-1.1.1.xsd">
<formats>
<format>dir</format>
</formats>
<dependencySets>
<dependencySet>
<!-- unpack the webapp as root application -->
<scope>runtime</scope>
<unpack>true</unpack>
<outputDirectory>webapps/root/</outputDirectory>
<includes>
<include>de.ahoehma:dummy-webapp:war</include>
</includes>
</dependencySet>
<dependencySet>
<unpack>false</unpack>
<outputDirectory>lib</outputDirectory>
<useTransitiveFiltering>true</useTransitiveFiltering>
<useStrictFiltering>true</useStrictFiltering>
<includes>
<include>org.mortbay.jetty:jetty</include>
<include>org.mortbay.jetty:jetty-util</include>
<include>org.mortbay.jetty:start</include>
<include>org.mortbay.jetty:jsp-2.1-jetty</include>
<include>commons-logging:commons-logging</include>
<include>log4j:log4j</include>
</includes>
</dependencySet>
</dependencySets>
<fileSets>
<fileSet>
<directory>src/jetty/bin</directory>
<outputDirectory>bin/</outputDirectory>
<filtered>false</filtered>
</fileSet>
<fileSet>
<directory>src/jetty/resources</directory>
<outputDirectory>etc/</outputDirectory>
<filtered>false</filtered>
</fileSet>
</fileSets>
</assembly>
See maven-assembly-plugin for more options …
3. src/jetty/bin contains a windows batch file:
@echo off
@set JVM_OPTS=-XX:MaxPermSize=256m -XX:PermSize=128m -Xms128m -Xmx512m
(cd .. && java %JVM_OPTS% -jar lib/start-6.1.23.jar)
4. and at least the src/jetty/resources contains the file jetty.xml:
<?xml version="1.0"?>
<!DOCTYPE Configure PUBLIC "-//Mort Bay Consulting//DTD Configure//EN" "http://jetty.mortbay.org/configure.dtd">
<Configure id="Server" class="org.mortbay.jetty.Server">
<Set name="ThreadPool">
<New class="org.mortbay.thread.BoundedThreadPool">
<Set name="minThreads">10</Set>
<Set name="maxThreads">250</Set>
<Set name="lowThreads">25</Set>
</New>
</Set>
<Call name="addConnector">
<Arg>
<New class="org.mortbay.jetty.nio.SelectChannelConnector">
<Set name="host"><SystemProperty name="jetty.host" default="localhost"/></Set>
<Set name="port"><SystemProperty name="jetty.port" default="1976"/></Set>
<Set name="maxIdleTime">30000</Set>
<Set name="Acceptors">2</Set>
<Set name="statsOn">false</Set>
<Set name="confidentialPort">8442</Set>
<Set name="lowResourcesConnections">5000</Set>
<Set name="lowResourcesMaxIdleTime">5000</Set>
</New>
</Arg>
</Call>
<Set name="handler">
<New id="Handlers" class="org.mortbay.jetty.handler.HandlerCollection">
<Set name="handlers">
<Array type="org.mortbay.jetty.Handler">
<Item>
<New id="Contexts" class="org.mortbay.jetty.handler.ContextHandlerCollection"/>
</Item>
<Item>
<New id="DefaultHandler" class="org.mortbay.jetty.handler.DefaultHandler"/>
</Item>
</Array>
</Set>
</New>
</Set>
<Call name="addLifeCycle">
<Arg>
<New class="org.mortbay.jetty.deployer.ContextDeployer">
<Set name="contexts"><Ref id="Contexts"/></Set>
<Set name="configurationDir"><SystemProperty name="jetty.home" default="."/>/contexts</Set>
<Set name="scanInterval">1</Set>
</New>
</Arg>
</Call>
<Call name="addLifeCycle">
<Arg>
<New class="org.mortbay.jetty.deployer.WebAppDeployer">
<Set name="contexts"><Ref id="Contexts"/></Set>
<Set name="webAppDir"><SystemProperty name="jetty.home" default="."/>/webapps</Set>
<Set name="parentLoaderPriority">false</Set>
<Set name="extract">true</Set>
<Set name="allowDuplicates">false</Set>
</New>
</Arg>
</Call>
<Set name="stopAtShutdown">true</Set>
<Set name="sendServerVersion">true</Set>
<Set name="sendDateHeader">true</Set>
<Set name="gracefulShutdown">1000</Set>
</Configure>
Now we are able to build a „offline version“ of our web application:
mvn package -Pjetty-offline
The result will be a directory target\distribution\offline-dummy-webapp-1.0.0-SNAPSHOT with the structure:
bin/
jetty_run.bar
etc/
jetty.xml
lib/
log4j-1.2.15.jar
commons-logging-1.1.1.jar
servlet-api-2.5-20081211.jar
start-6.1.23.jar
jetty-6.1.23.jar
jetty-util-6.1.23.jar
ant-1.6.5.jar
core-3.1.1.jar
ecj-3.5.1.jar
jsp-2.1-jetty-6.1.23.jar
jsp-2.1-glassfish-2.1.v20091210.jar
jsp-api-2.1-glassfish-2.1.v20091210.jar
webapps/
root/
index.html
css/
images/
META-INF/
pages/
WEB-INF/
...
To run the web application start the jetty_run.bat (i.e. open the dir with the explorer and double click the bat-file).
That’s it 😀
This article was the first part if the tutorial … in the second part I will show you how to build a windows exe package with a runnable web application inside …
joltcan, 
rherrick, und 
Andreas Höhmann's Weblog 
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