How to change the version of Spring boot’s embedded Tomcat

How to change the version of Spring boot’s embedded Tomcat

To check the Tomcat version of Spring boot 2.1.1, you can check the Tomcat startup log.

2019-01-07 21:56:56.097 INFO 16344 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2019-01-07 21:56:56.122 INFO 16344 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2019-01-07 21:56:56.122 INFO 16344 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/9.0.13

We confirmed the following environment

To change only the embedded Tomcat version in this environment, specify the version in pom.xml.

<properties>
  <java.version>1.8</java.version>
  <tomcat.version>8.5.34</tomcat.version>
</properties>

You can change it in tomcat.version as above.

If you change the Tomcat version to 8.5.34 and start the embedded Tomcat, you will see that the log version has changed to 8.5.34.

2019-01-07 22:16:56.552 INFO 17160 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2019-01-07 22:16:56.578 INFO 17160 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2019-01-07 22:16:56.579 INFO 17160 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.34

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