端口配置为6666

src/main/resources/application.properties

-server.port=8080
+server.port=6666
 
 spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
 spring.datasource.url=jdbc:mysql://localhost:3306/automated_testing?useSSL=false&serverTimezone=UTC&allowPublicKeyRetrieval=true