1.下载mysql
第一步：下载mysql安装包，也可以通过本地xftp上传到虚拟机
- 国内镜像地址：http://mirrors.ustc.edu.cn/mysql-ftp/Downloads/MySQL-8.0/
- mysql官网地址：https://cdn.mysql.com//Downloads/MySQL-8.0/mysql-8.0.19-linux-glibc2.12-x86_64.tar.xz
- 博主提供地址
- 链接：https://pan.baidu.com/s/1RbdQk-hucvRdbVIbxDHbRA?pwd=6tkk
- 提取码：6tkk
> #跳转到下载目录 > cd /usr/local > #下载mysql8.0的版本 > wget https://cdn.mysql.com//Downloads/MySQL-8.0/mysql-8.0.19- linux-glibc2.12-x86_64.tar.xz
第二步：将下载的mysql安装包解压
#解压 tar -xvf mysql-8.0.19-linux-glibc2.12-x86_64.tar.xz #移动 mv mysql-8.0.19-linux-glibc2.12-x86_64.tar.xz mysql #添加mysql组和mysql用户 #添加mysql组 groupadd mysql #添加mysql用户 useradd -r -g mysql mysql
第三步：配置mysql配置文件与初始化mysql
#给mysql组/usr/local/mysql文件权限 chown -R mysql:mysql /usr/local/mysql #初始化mysql服务 ./bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql -- datadir=/usr/local/mysql/data chown -R root:root /usr/local/mysql chown -R mysql:mysql /usr/local/mysql/data #修改/etc/my.cnf配置文件权限 chmod 755 /etc/my.cnf
以下是配置文件内容：
[mysql] default-character-set=utf8 [client] port=3306 default-character-set=utf8 socket=/usr/local/mysql/tmp/mysql.sock [mysqld] socket=/usr/local/mysql/tmp/mysql.sock port=3306 default_authentication_plugin=mysql_native_password basedir=/usr/local/mysql datadir=/usr/local/mysql/data character-set-server=utf8 default-storage-engine=InnoDb max_connections=1000 collation-server=utf8_unicode_ci init_connect='SET NAMES utf8' innodb_buffer_pool_size=64M innodb_flush_log_at_trx_commit=1 innodb_lock_wait_timeout=120 innodb_log_buffer_size=4M innodb_log_file_size=256M interactive_timeout=120 join_buffer_size=2M key_buffer_size=32M log-error=/usr/local/mysql/data/data.err log_error_verbosity=1 max_allowed_packet=256M max_heap_table_size=64M myisam_max_sort_file_size=64G myisam_sort_buffer_size=32M read_buffer_size=512kb read_rnd_buffer_size=4M log_bin=mysql-bin server-id=1 skip-external-locking=on sort_buffer_size=256kb table_open_cache=256 thread_cache_size=16 tmp_table_size=64M wait_timeout=2288800 general_log=ON general_log_file=/usr/local/mysql/data/query_log.pid slow_query_log=ON slow_query_log_file=sql-slow.log long_query_time=1 sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION
创建mysql.sock存储文件tmp
mkdir tmp chmod 777 tmp
第四步：加入开机自启
#将mysql服务添加到/etc/init.d cp support-files/mysql.server /etc/init.d/mysql chmod +x /etc/init.d/mysql #添加服务 chkconfig --add mysql #查看是否添加成功 chkconfig --list mysql
第五步：开启mysql服务并配置环境变量
#启动mysql服务 service mysql start vi /etc/profile #profile中填写内容： export PATH=$PATH:/usr/local/mysql/bin:/usr/local/mysql/lib #保存退出之后，运行命令： source /etc/profile
第六步：登录mysql，修改密码
mysql -uroot -p --修改密码 alter user 'root'@'localhost' identified by 'root';
