CODEWITHSUNDEEP
javaspringspring-boot
etig
etig

Reputation: 523

Specify main class Spring-Boot command line

I use maven plugin to set the main class like this :

<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
    <mainClass>com.myapp.main.MainClass</mainClass>
</configuration>
</plugin>

But sometimes I want run my app with another main class. What is the command line arguments to do this?

java -jar myapp-1.0.jar ...

Thx

Upvotes: 23

Views: 27495

Answers (4)

Marcus A.
Marcus A.

Reputation: 671

Following command will do the trick:

java -cp my-app.jar -Dloader.main=myApplicationClass org.springframework.boot.loader.launch.PropertiesLauncher

Upvotes: 52

bratan
bratan

Reputation: 3467

For WAR files:

java -cp salamander-1.0.0.war -Dloader.path=WEB-INF/classes,WEB-INF/lib -Dloader.main=com.frog.katak.MyMainClass org.springframework.boot.loader.PropertiesLauncher

Upvotes: 1

Dave Syer
Dave Syer

Reputation: 58124

There's a launcher for that in Spring Boot already. You need to build the jar with that as the Main-Class (by setting the layout in the build config).

Upvotes: 7

Andrew
Andrew

Reputation: 229

Executing from Windows PowerShell I needed this format (with the quotes):

java -cp .\myjarfile.jar -D"loader.main=com.app.etc.FullyQualifiedMainClass" org.springframework.boot.loader.PropertiesLauncher

To clarify the accepted answer: You can directly modify the loader.main property in the jar's META-INF/MANIFEST.MF file, if you're ok with a more static solution.

Upvotes: 4

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