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执行以下命令，下载并安装MySQL官方的Yum Repository wget http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm yum -y install mysql57-community-release-el7-10.noarch.rpm yum -y install mysql-community-server 执行以下命令，启动 MySQL 数据库。 systemctl start mysqld.s.

# 安装java rpm [root@xzw xzw]# rpm -ivh jdk-8u221-linux-x64.rpm 查看是否安装成功 java -version #配置环境 [root@xzw jdk1.8.0_11]# jps -bash: jps: command not found [root@xzw jdk1.8.0_11]# vim /etc/profile export JAVA_HOME=/usr/java/jdk1.8.0_11 export PATH=$JAVA_HOME/bi