maven build 启动时，一直出现这问题，请问一下老师，我哪...

Alexxugm

严重: The web application [/jeecg] registered the JBDC driver [com.mysql.cj.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
五月 03, 2021 10:36:39 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc


[ERROR] Failed to execute goal org.codehaus.mojo:tomcat-maven-plugin:1.1:run (default-cli) on project jeecg: Could not start Tomcat: Protocol handler initialization failed: java.net.BindException: Address already in use: JVM_Bind <null>:8080 -> [Help 1]

maven build 启动时，一直出现这问题，请问一下老师，我哪地方没有设置好?谢谢！