项目运行起来了，但是不知道要如何运行后台管理系统，希望作者能否写下说明，谢谢！
logbak: 2021-07-30 14:07:23.573 o.a.tomcat.util.net.NioSelectorPool - Using a shared selector for servlet write/read
logbak: 2021-07-30 14:07:23.591 o.s.b.c.e.t.TomcatEmbeddedServletContainer - Tomcat started on port(s): 8080 (http)
logbak: 2021-07-30 14:07:23.594 cn.chenhaoxiang.SellApplication - Started SellApplication in 4.023 seconds (JVM running for 5.033)
项目运行起来了，但是不知道要如何运行后台管理系统，希望作者能否写下说明，谢谢！
logbak: 2021-07-30 14:07:23.573 o.a.tomcat.util.net.NioSelectorPool - Using a shared selector for servlet write/read
logbak: 2021-07-30 14:07:23.591 o.s.b.c.e.t.TomcatEmbeddedServletContainer - Tomcat started on port(s): 8080 (http)
logbak: 2021-07-30 14:07:23.594 cn.chenhaoxiang.SellApplication - Started SellApplication in 4.023 seconds (JVM running for 5.033)