CentOS8下安装mysql8 和jdk 8

安装Yum Repository

[[email protected] ~]# wget https://repo.mysql.com//mysql80-community-release-el8-1.noarch.rpm

使用rpm来安装MySQL
[[email protected] ~]# rpm -ivh mysql80-community-release-el8-1.noarch.rpm

使用yum安装mysql服务

[[email protected] ~]# yum install mysql-server

检查是否已经设置为开机启动MySQL服务
[[email protected] ~]# systemctl list-unit-files|grep mysqld
mysqld.service disabled
[email protected] disabled

[[email protected] ~]# systemctl enable mysqld.service #设置开机启动
Created symlink /etc/systemd/system/multi-user.target.wants/mysqld.service → /usr/lib/systemd/system/mysqld.service.
[[email protected] ~]# systemctl list-unit-files|grep mysqld
mysqld.service enabled
[email protected] disabled

[[email protected] ~]# ps -ef|grep mysql # 查看是否启动MySQL服务
root 4311 32702 0 21:07 pts/4 00:00:00 grep --color=auto mysql
[[email protected] ~]# systemctl start mysqld.service #启动服务

CentOS8下安装mysql8 和jdk 8

1. 查看是否安装：rpm -qa | grep mysql（可以换成java）
   rpm -pa | grep mysql 或者 rpm -qa | grep -i mysql
   yum remove mysql-xxx-xxx
   find / -name mysql
   rm -rf /xxx/xxx/xxx

# 给用户设定密码的两种方式
1. UPDATE user SET password = PASSWORD('root') WHERE user = 'root';
FLUSH PRIVILEGES;
2. SET PASSWORD FOR [email protected] = PASSWORD('your_password');

# 创建用户并授权用户
create user 'username'@'localhost' identified by 'username';
create database database_name default character set = 'utf8' default collate = 'utf8_general_ci';
grant all privileges on database_name.* to 'username'@'localhost';
flush privileges;

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'root';

2. 查看是否安装Java
2.1.Java 版本 java -version
2.2.查看系统是否自带 jdk
2.2.1. rpm -qa | grep java
2.2.2. rpm -qa | grep jdk
2.2.3. rpm -qa | grep gcj

如果有输出信息，批量卸载系统自带
rpm -qa | grep java | xargs rpm -e --nodeps

3.如果使用 yum 安装的 jdk，请使用下面命令卸载

yum -y remove java-1.8.0-openjdk-headless.x86_64

4、安装
4.1 检查 yum 中有没有 java1.8 包
yum list java-1.8*

4.2 开始安装
yum install java-1.8.0-openjdk* -y

5、验证
[[email protected] ~]# java -version
openjdk version "1.8.0_222"
OpenJDK Runtime Environment (build 1.8.0_222-b10)
OpenJDK 64-Bit Server VM (build 25.222-b10, mixed mode)

CentOS8下安装mysql8 和jdk 8

相关推荐