how do I set heroku port number in spring boot gradle?-CodePudding

root dir - procfile web: java $PORT $JAVA_OPTS -jar target/backend-0.0.1-SNAPSHOT.jar

resources dir - application.yml server: port: "${port:8080}"

I set above options but I found another ports Is there anyway?

CodePudding user response：

Don't pass the port to java. The java binary is trying to find a class with that name:

Error: Could not find or load main class 35913

So, remove it from your Procfile:

web: java $JAVA_OPTS -jar target/backend-0.0.1-SNAPSHOT.jar

Java is a general-purpose programming language and does not know what to do with a port. It doesn't run a web server unless you tell it to. Instead, you need to pass it to whatever web server you are running.

You appear to be trying to do that in your application.yml file, but make sure to use PORT instead of port:

server: port: "${PORT:8080}"

Environment variables are case-sensitive on most non-Microsoft systems.