My maven project is like this and I have a quartz.properties
file in /src/main/resources
folder as shown below
my-app
|-- pom.xml
`-- src
|-- main
| |-- java
| | `-- com
| | `-- mycompany
| | `-- app
| | `-- App.java
| `-- resources
| `-- quartz.properties
`-- test
|-- java
`-- com
`-- mycompany
`-- app
`-- AppTest.java
Now I want to make an executable jar using maven so that I can run it like this java -jar abc.jar
. Below is my main method code which works fine in my laptop in my eclipse IDE but I want to run it on my ubuntu machine using java -jar
command:
public static void main(String[] args) {
StdSchedulerFactory factory = new StdSchedulerFactory();
try {
factory.initialize(App.class.getClassLoader().getResourceAsStream("quartz.properties"));
Scheduler scheduler = factory.getScheduler();
scheduler.start();
} catch (SchedulerException ex) {
System.out.println("error= " + ExceptionUtils.getStackTrace(ex));
}
}
And here is my pom.xml
file as of now. What changes I need to have in my pom.xml
file to make an executable jar so that I can run it with java -jar
?
<?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/xsd/maven-4.0.0.xsd">
<parent>
<groupId>com.host.domain</groupId>
<artifactId>DataPlatform</artifactId>
<version>4.2.8-RELEASE</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<groupId>com.mycompany.app</groupId>
<artifactId>abc</artifactId>
<version>1.0.0</version>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz</artifactId>
<version>2.2.1</version>
</dependency>
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz-jobs</artifactId>
<version>2.2.1</version>
</dependency>
<dependency>
<groupId>javax.transaction</groupId>
<artifactId>jta</artifactId>
<version>1.1</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.3.1</version>
</dependency>
</dependencies>
</project>
In order to compile the project into an executable jar, please run Maven with mvn clean package command.
You can configure maven jar plugin to achieve this.
Try adding following just above dependencies section:
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<mainClass>com.mycompany.app.App</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</build>
Here, <addClasspath>true</addClasspath>
will add classpath entries to the manifest of your jar, so as long as you have those jars in same directory, your application will run fine.
You can customize the library path with, for example, <classpathPrefix>lib/</classpathPrefix>
. It means your libraries should be placed in relative /lib
directory.
You can also use maven dependency plugin if you want to automatically copy your libraries to output directory.
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