SpringBoot整合Mybatis Bug已解决:The last packet sent successfully to the server was 0 milliseconds ago

今天在学习SpringBoot整合Mybatis时,浏览器请求一直没有得到响应:

SpringBoot整合Mybatis Bug已解决:The last packet sent successfully to the server was 0 milliseconds ago

控制台显示信息:

SpringBoot整合Mybatis Bug已解决:The last packet sent successfully to the server was 0 milliseconds ago

折腾了半天,把代码翻来覆去的看了好几遍,问题一直没有解决。
突然! 我想到一个很可怕的可能

我没有启动Mysql服务

打开任务管理器,查看Mysql服务,果真没有启动

SpringBoot整合Mybatis Bug已解决:The last packet sent successfully to the server was 0 milliseconds ago
启动服务以后正常,有被自己蠢哭…