Linux环境下java开发环境搭建三 mysql解压安装(预编译安装)
第一步下载linux环境下的安装包,并把安装包解压到/usr/local/目录下解压后的文件如下 第二步:安装前的一些准备工作(1)建立软链接#ln? -s?mysql-5.7.25-linux-glibc2.12-x86_64? ?mysql (2)创建mysql组与mysql 用户#groupadd msyql 创建的mysql用户不能登录只是用来启动mysql数据库,且其家目录为/usr/local/mysql,并不是/home/mysql #useradd -r -s /sbin/nologin -g mysql mysql -d /usr/local/mysql (3)在/user/local/目录下创建mysql-files目录,且赋予750权限#mkdir mysql-file #chmod 750 mysql-files ? (4)把/user/local/mysql目录的所属用户设置成mysql用户,所属组都设置成mysql组? 第三步:mysql的安装(1)使用/usr/local/mysql/bin目录下的mysqld进行初始化[[email?protected] mysql]# bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --user=mysql? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 代表初始化时,使用的linux用户是mysql用户 --basedir=/usr/local/mysql? ? ? ? ? ? ?代表mysql安装的目录是/usr/local/mysql --datadir=/usr/local/mysql/data? ? ? 代表mysql以后的数据库都存放在/usr/local/mysql/data 注意的一点就是如果/etc/my.cnf文件存在,一些配置信息会读取这个配置文件中的内容,如果在这个文件中配置了 log-error ,那么mysql的初始化过程不会打印到标准输出中,而是输出到log-error配置的文件中。初始化中会给出一个root的初始化密码,要记住 (2)在/etc/目录下创建配置文件,/etc/my.cnf[mysqld] basedir=/usr/local/mysql datadir=/usr/local/mysql/data user=mysql # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 default-storage-engine=InnoDB innodb-file-per-table=1 character_set_server=utf8mb4 [mysqld_safe] [client] default-character-set=utf8mb4 (3)启动mysql方法一:手动启动 #mysqld_safe? ?--user=mysql & 方法二:使用安装包中的mysql.server脚本启动 首先把脚本复制到linux的/etc/init.d/? 目录下,然后把mysql.server重命名为mysqld 再重命名后的mysqld设置成开机启动 ? [[email?protected] mysql]# cp ./support-files/mysql.server /etc/init.d/ [[email?protected] mysql]# mv /etc/init.d/mysql.server /etc/init.d/mysqld [[email?protected] mysql]# chkconfig --add mysqld [[email?protected] mysql]# chkconfig mysqld on 启动mysql [[email?protected] mysql]# service mysqld start Starting MySQL.Logging to ‘/usr/local/mysql/data/slave1.err‘. SUCCESS! 查看一些mysqld的启动情况 [[email?protected] mysql]# ps aux| grep mysqld root 1689 0.1 0.1 11436 1540 pts/2 S 18:12 0:00 /bin/sh /usr/local/mysql/bin/mysqld_safe --datadir=/usr/local/mysql/data --pid-file=/usr/local/mysql/data/slave1.pid mysql 1861 4.0 17.6 1168192 180332 pts/2 Sl 18:12 0:00 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --plugin-dir=/usr/local/mysql/lib/plugin --user=mysql --log-error=slave1.err --pid-file=/usr/local/mysql/data/slave1.pid root 1891 0.0 0.0 103248 868 pts/2 S+ 18:12 0:00 grep mysqld 可以看到,其实采用脚本启动调用的也是mysqld_safe命令 (4)把/usr/local/mysql/bin目录加入到linux的PATH变量,这样在使用/usr/local/mysql/bin目录下的命令时,就不需要进入到bin目录,或者写上路径名 export MYSQL_HOME=/usr/local/mysql/
export PATH=$PATH:$MYSQL_HOME/bin
或者 [[email?protected] mysql]# echo "export PATH=$PATH:/usr/local/mysql/bin" >> /etc/profile (5)使/etc/profile 配置文件重新生效 [[email?protected] mysql]# source /etc/profile ? (6) 此时就可以登录通过 #mysql -uroot -p‘密码‘登录了 [[email?protected] mysql]# mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or g. Your MySQL connection id is 2 Server version: 5.7.25 Copyright (c) 2000,2019,Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type ‘help;‘ or ‘h‘ for help. Type ‘c‘ to clear the current input statement. 首次登录需要重置密码 mysql> show databases; ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement. mysql> alter user [email?protected]‘localhost‘ identified by ‘********‘; 通过alter语句对密码进行重置,密码要复核一些原则,数字,字母,大小写,特殊字符等. (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |