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springspring-bootintellij-ideaspring-boot-devtools

How to enable Spring Boot Live Dev Tools on IntelliJ 2021.2 to rebuild classes after modifications and deploy changes to server?

This is a tutorial on how to enable Dev Tools project on IntelliJ 2021.2 and observe the changes in code without having to restart the Tomcat server.

Solution

  • In order to make it work, you need to:

    1. Have devtools enable in maven or gradle. In maven it looks like :
        <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
         <scope>runtime</scope><!-- -->
        <optional>true</optional>
    </dependency>

    1. In IntelliJ IDEA: go to settings(ctrl + alt + s) -> Build, Execution, Deployment -> Compiler, check "Build project automatically"

    2. Enable option "Allow auto-make to start even if developed application is currently running" in Settings -> Advanced Settings under "Compiler"

    check Allow auto-make to start even if developed application is currently running under Advanced Settings

    You can now restart your intelliJ IDE and start your application.