Spring Boot DevTools are a set of tools that help developers on their journey to creating production-ready Spring applications. These tools can be used in conjunction with existing IDEs or from the command line. DevTools provide a fast feedback loop and allow developers to:
The main reason to use Spring Boot DevTools is to improve the developer experience when working with Spring applications. DevTools can save developers a lot of time by automating common tasks and providing a fast feedback loop.
The first step is to add the DevTools dependency to your project. If you're using Maven, you can add the following dependency to your pom.xml file:
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
</dependencies>
If you're using Gradle, you can add the following dependency to your build.gradle file:
dependencies {
compile("org.springframework.boot:spring-boot-devtools")
}
The next step is to enable DevTools in your IDE. If you're using Eclipse, you can add the following line to your .project file:
<buildCommand>
<name>org.springframework.boot.devtools.eclipse.launch.devtoolsbuilder</name>
<arguments>
</arguments>
</buildCommand>
If you're using IntelliJ IDEA, you can add the following line to your .iml file:
<component name="DevTools">
<configuration>
<restartOnClassChange>true</restartOnClassChange>
</configuration>
</component>
If you're using the command line, you can use the following command to start your application with DevTools:
java -jar myapp.jar --spring.devtools.restart.enabled=true
In this post, we've looked at how to use Spring Boot DevTools to improve the developer experience when working with Spring applications. DevTools can save developers a lot of time by automating common tasks and providing a fast feedback loop.