查看Tomcat 日志

catalina.out即标准输出和标准出错，包含tomcat运行自己输出的日志以及应用里向console输出的日志。

apache-tomcat-9.0.56/logs目录内容

[root@localhost logs]# ls
catalina.2022-02-06.log      localhost.2022-01-20.log     localhost_access_log.2022-01-12.txt  manager.2021-12-30.log
catalina.2022-02-07.log      localhost.2022-01-21.log     localhost_access_log.2022-01-13.txt  manager.2022-01-04.log
catalina.out                 localhost.2022-01-22.log     localhost_access_log.2022-01-14.txt  manager.2022-02-07.log

查看日志内容tail -f data/apache-tomcat-9.0.56/logs/catalina.out

[root@localhost ~]# tail -f data/apache-tomcat-9.0.56/logs/catalina.out
2022-02-07 17:10:26.130  INFO 9198 --- [alina-utility-1] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
2022-02-07 17:10:26.857  INFO 9198 --- [alina-utility-1] pers.gl.ServletInitializer               : Started ServletInitializer in 4.463 seconds (JVM running for 6348.299)
07-Feb-2022 17:10:26.869 信息 [Catalina-utility-1] org.apache.catalina.startup.HostConfig.deployWAR web应用程序存档文件[/data/apache-tomcat-9.0.56/webapps/gqsi.war]的部署已在[6,985]ms内完成
2022-02-07 17:14:54.451  INFO 9198 --- [io-8080-exec-11] o.s.web.servlet.DispatcherServlet        : Initializing Servlet 'dispatcherServlet'
2022-02-07 17:14:54.466  INFO 9198 --- [io-8080-exec-11] o.s.web.servlet.DispatcherServlet        : Completed initialization in 15 ms