Centos7.3 JDK9+MySql5.7+Tomcat9的安装配置

#JDK  vi /etc/profile 追加如下信息
export JAVA_HOME=/usr/local/java/jdk-9.0.1
export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin
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#MySql
yum源rpm安装包 https://dev.mysql.com/downloads/repo/yum/
yum localinstall ****************.rpm
#检查MySQL源是否正确安装
yum repolist enabled | grep “mysql.*-community.*”
#安装MySQL
yum install mysql-community-server
#启动MySQL服务
systemctl start mysqld
#查看MySQL启动状态
systemctl status mysqld
#开机启动
systemctl enable mysqld
systemctl daemon-reload
#查看随机密码
grep ‘temporary password’ /var/log/mysqld.log
#修改密码
mysql -u root -p
ALTER USER ‘root’@’localhost’ IDENTIFIED BY ‘MyNewPass4!’;
或
set password for ‘root’@’localhost’=password(‘MyNewPass4!’);
#修改密码策略
/etc/my.cnf 中追加
validate_password = off
#忘记密码
/etc/my.cnf 追加
skip-grant-tables
mysql>mysql -u root
mysql>update mysql.user set authentication_string=password(‘root’) where user=’root’ and Host = ‘localhost’;

mysql>flush privileges

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#Tomcat 无须配置环境变量
报错时(jdk bug)需要修改 /usr/local/java/jdk-9.0.1/conf/security/java.security 中的
securerandom.source=file:/dev/random
为
securerandom.source=file:/dev/./urandom