今天用CentOS安装JDK,发觉在安装完成后,输入java命令来验证是否安装成功时,出现 Usage: gij [OPTION] ... CLASS [ARGS] ... to invoke CLASS.main, or gij -jar [OPTION] ... JARFILE [ARGS] ... to execute a jar fileTry `gij --help' for more information. 感觉很奇怪,怎么出现gij
MySQL Daemon failed to start Mysql出问题一定要学会查看log https://blog.csdn.net/shuai825644975/article/details/79473236 mysql突然挂了,重启提示:MySQL Daemon failed to start 用mysql -root -p登录,提示[mysql]ERROR 2002 (HY000): Can't connect to local MySQL server through socke