Spring Boot¶

Spring Boot is a framework that simplifies the creation of stand-alone, Spring based applications.

To enable Spring Boot support, add the following to the module.yaml file:

settings:
  springBoot: enabled

Setting springBoot: enabled performs the following actions:

Applies the Spring Boot Dependencies BOM
Adds the spring-boot-starter dependency
Adds the spring-boot-starter-test test dependency
Configures all-open and no-arg Kotlin compiler plugins with the spring preset
Adds the necessary compiler arguments for kotlinc and javac:
For Java, -parameters is passed to the compiler to preserve parameter names.
For Kotlin, -java-parameters is passed to the compiler for the same reason. Also -Xjsr305 is set to strict to favor the null-safety annotations.
Contributes Spring Boot-related entries to the built-in library catalog
Makes amper run run with classes instead of JARs (aka the jvm.runtimeClasspathMode setting).
This way the Spring Dev Tools can provide automatic restarts.

Mixed projects (containing Java and Kotlin sources simultaneously) are supported.

Examples of Spring Boot projects:

You can also customize the version of the Spring Boot libraries using the full form of the configuration:

settings:
  springBoot:
    enabled: true
    version: 3.5.7

If you don't want the Spring Boot Dependencies BOM to be applied, you can disable it explicitly:

settings:
  springBoot:
    enabled: true
    applyBom: false

.st0{fill:#6DB33F;} icon-spring-boot Spring Boot¶