Spring Boot Gradle – How to Change the Port of an Application

gradleportspring-boot

The simple question is: How can you change the Spring Boot application port with gradle?

Here are already listed a lot of correct answers if you are not using gradle. So for none gradle issues, please refere to this post.

Best Answer

In case you don't want to add extra configuration to your Gradle scripts, you can achieve it by setting the SERVER_PORT environment variable:

SERVER_PORT=8888 ./gradlew bootRun

[UPDATE] Since Gradle 4.9, it's possible to pass arguments to bootRun without extra configuration:

./gradlew bootRun --args='--server.port=8888'

Related Solutions

Java – How to Configure Port for a Spring Boot Application

As said in docs either set server.port as system property using command line option to jvm -Dserver.port=8090 or add application.properties in /src/main/resources/ with

server.port=8090

For a random port use:

server.port=0

Similarly add application.yml in /src/main/resources/ with:

server:
  port: 8090

Spring Boot – How to Change Port for Web Application

Actually you want to change server.port and you can change it in many different ways as described http://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#boot-features-external-config

Examples:

in your application.properties (in or outside the jar)
command line

java -Dserver.port=$PORT -jar target/demo-0.0.1-SNAPSHOT.jar

and much more

Best Answer

Related Solutions

Java – How to Configure Port for a Spring Boot Application

Spring Boot – How to Change Port for Web Application

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