文章目录
mac 安装、配置、卸载mysql
安装
下载mysql dmg包
下载地址：https://downloads.mysql.com/archives/community/
我选择的这个
安装mysql服务
记住安装的数据库的初始密码
启动mysql服务
配置系统环境变量
此时我们在命令行输入mysql -uroot -p命令会提示没有commod not found，我们还需要将mysql加入系统环境变量
- 进入/usr/local/mysql/bin（默认安装路径）,查看此目录下是否有mysql
- 执行vim ~/.bash_profile
添加完成后，按esc，然后输入wq保存。最后在命令行输入source ~/.bash_profile
配置
修改默认密码
set password for 'root'@'localhost' = PASSWORD('root');
例如这里，我mysql的密码修改为root
配置运行远程连接
错误：1130 - Host 127.0.0.1 is not allowed to connect to this MySQL server：
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'yourpassword' WITH GRANT OPTION; /*把命令中的‘yourpassword’换成你的数据库密码*/
修改以后再键入刷新使用权限命令：
FLUSH PRIVILEGES
配置my.cnf文件
mac上mysql默认没有配置文件的，需要自己添加
把/usr/local/mysql/support-files目录下的my-default.cnf复制到桌面，然后改名为my.cnf然后再把这个文件复制到/etc目录
这个文件my.cnf可以加一些我们自己自定义的mysql配置
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html
# *** DO NOT EDIT THIS FILE. It's a template which will be copied to the
# *** default location during install, and will be replaced if you
# *** upgrade to a newer version of MySQL.
[mysqld]
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
# These are commonly set, remove the # and set as required.
# basedir = .....
# datadir = .....
# port = .....
# server_id = .....
# socket = .....
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M
default-storage-engine=INNODB
character_set_server=utf8
lower_case_table_names=1
table_open_cache=128
max_connections=2000
max_connect_errors=6000
innodb_file_per_table=1
innodb_buffer_pool_size=1G
max_allowed_packet=64M
transaction_isolation=READ-COMMITTED
innodb_flush_method=O_DIRECT
innodb_lock_wait_timeout=1800
innodb_flush_log_at_trx_commit=0
sync_binlog=0
group_concat_max_len=1024000
sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
skip-name-resolve
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'root' WITH GRANT OPTION;
然后重新启动mysql即可
在系统设置->mysql的控制板进行重新启动
这里用命令行重新启动出现错误，不建议
mysql> show VARIABLES like '%max_allowed_packet%';
+--------------------------+------------+
| Variable_name | Value |
+--------------------------+------------+
| max_allowed_packet | 67108864 |
| slave_max_allowed_packet | 1073741824 |
+--------------------------+------------+
2 rows in set (0.00 sec)
这里可以发现设置已经生效，max_allowed_packet已经变成64M
卸载
此方法适用于以DMG方式安装的MySQL 5.7
ps -ax | grep mysql
停止并杀死任何 MySQL 进程
brew remove mysql
brew cleanup
sudo rm /usr/local/mysql
sudo rm -rf /usr/local/var/mysql
sudo rm -rf /usr/local/mysql*
sudo rm ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
sudo rm -rf /Library/StartupItems/MySQLCOM
sudo rm -rf /Library/PreferencePanes/My*
launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
编辑 /etc/hostconfig 删除行 MYSQLCOM=-YES-
rm -rf ~/Library/PreferencePanes/My*
sudo rm -rf /Library/Receipts/mysql*
sudo rm -rf /Library/Receipts/MySQL*
sudo rm -rf /private/var/db/receipts/*mysql*
重新启动计算机只是为了确保所有 MySQL 进程都被杀死
尝试运行MySQL，无法工作，卸载完成
并且如果是以 下载 DMG 方式安装的MySQL，可以发现设置里的MySQL控制面板已经消失了
允许局域网访问
1、修改my.cnf配置文件
在[mysqld]下添加bind_address=0.0.0.0
最好是先在mac的系统设置中暂停mysql服务，修改之后，然后在启动
2、授权用户
改表
修改mysql的user表，host字段为指定ip即可。如果想任意主机都可以连接，可以使用%
mysql -uroot -p
输入密码
use mysql
select host,user from user;
update user set host = '%' where user = 'root';
新建远程连接用户
# 第一个星号表示数据库名称，第二个星号表示该数据库下的某个表名称。写成两个星号表示所有的数据库都进行授
# admin表示授权admin账号
# “%”表示授权的用户IP可以指定，这里代表任意的IP地址都能访问MySQL数据库
# “123456”表示分配账号对应的密码，这里密码自己替换成你的mysql root帐号密码
grant all on *.* to admin@'%' identified by '123456' with grant option;
#刷新权限
flush privileges;