作者：Saber

springboot@startumlhideemptycirclehideemptymembersskinparamshadowingfalserectangle"spring-boot-build:2.2.14.RELEASE"asbootBuild#lightgreenrectangle"spring-boot-dependencies:2.2.14.RELEASE"asbootDependencies#lightgreenrectangle"spring-boot-parent:2.2.14.RELEASE"as...

CPU占用飙升1.top找到CPU占用最大的进程（shift+c按CPU占用量排序）2.top-Hppid找到进程中CPU占用最大的线程3.printf'%x'ThreadId将线程ID转换成十六进制4.jstackpid|grep'ThreadId'-C5-color打印堆栈信息查找死锁1.jps...