实际上你想改变 server.port 并且你可以按照 http://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#boot-features-external-config

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

示例:

• 在您的 application.properties 中(在 jar 内或外)

• 命令行

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

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

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