Add jar file to spring-boot classpath at runtime

Question

I want develop a modular application using spring-boot and plugins. The plugins will be handled with spring-plugin and these are stored in jars files in a directory (for example: /home/application/plugins).How can I add jars files to the application classpath at runtime and loading classes and beans (plugins) that are in these jars files. Best regards, HLicea

Accepted Answer

You need to use PropertiesLauncher instead of JarLauncher:

```
java -cp "yourBoot.jar" -Dloader.path=plugins/ -Dloader.main=your.mainClass org.springframework.boot.loader.PropertiesLauncher
```

This will make java load the jars in the plugins directory and spring load all the classes in those jars marked as @Configuration into the context.

Add jar file to spring-boot classpath at runtime

Solution

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