Qfyilyi

I have an executable jar file. I can start it properly using command java ${JAVA_OPTS} -jar.
I deployed it to internal maven repository and include it to spring boot app as an dependency. How can I execute that dependency as jar file? I want to create Schedule to execute it every day.

One of the possible option is unpack jar via maven plugin, update main class in spring-boot-maven-plugin and execute the command as mentioned below :

Unpack the jar :

<plugin>

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

    <artifactId>maven-dependency-plugin</artifactId>

    <version>2.2</version>

    <executions>

        <execution>

            <id>unpack</id>

            <phase>compile</phase>

            <goals>

                <goal>unpack</goal>

            </goals>

            <configuration>

                <artifactItems>

                    <artifactItem>

                        <groupId>com.group</groupId>

                        <artifactId>artifact</artifactId>

                        <version>0.0.1</version>

                        <type>jar</type>

                        <overWrite>true</overWrite>

                        <outputDirectory>${project.build.outputDirectory}</outputDirectory>

                    </artifactItem>

                </artifactItems>

            </configuration>

        </execution>

    </executions>

</plugin>

Update Main class(add below tag in spring-boot-maven-plugin) in pom.xml : as you may be having multiple main classes in final jar.

<configuration><mainClass>any of the main class here</mainClass></configuration>

Invoke the Main class

java -cp final.jar -Dloader.main=<fullyqualifed_mainclass> org.springframework.boot.loader.PropertiesLauncher

By this you can invoke any of the main class from final jar.