Homebrew(brew)安装MySQL@5.7及配置

查找并确定自己需要安装的版本

brew search mysql

可以看到brew在安装的时候已经初始过mysql了(不用再像网上说的再执行mysql_install_db命令)，且当前没有密码于是我按照它的提示，执行命令：
mysql_secure_installation
按照提示设置密码即可
启动

lucene:homebrew lucene$ brew services start mysql@5.7
==> Tapping homebrew/services
Cloning into '/usr/local/Homebrew/Library/Taps/homebrew/homebrew-services'...
remote: Enumerating objects: 14, done.
remote: Counting objects: 100% (14/14), done.
remote: Compressing objects: 100% (9/9), done.
remote: Total 14 (delta 0), reused 7 (delta 0), pack-reused 0
Unpacking objects: 100% (14/14), done.
Tapped 1 command (42 files, 56KB).
==> Successfully started `mysql@5.7` (label: homebrew.mxcl.mysql@5.7)

设置密码

lucene:homebrew lucene$ mysql_secure_installation

Securing the MySQL server deployment.

Connecting to MySQL using a blank password.

VALIDATE PASSWORD PLUGIN can be used to test passwords
and improve security. It checks the strength of password
and allows the users to set only those passwords which are
secure enough. Would you like to setup VALIDATE PASSWORD plugin?

Press y|Y for Yes, any other key for No: #设置密码
Please set the password for root here.

New password: 

Re-enter new password: 
By default, a MySQL installation has an anonymous user,
allowing anyone to log into MySQL without having to have
a user account created for them. This is intended only for
testing, and to make the installation go a bit smoother.
You should remove them before moving into a production
environment.

Remove anonymous users? (Press y|Y for Yes, any other key for No) : y #是否移除其他表
Success.


Normally, root should only be allowed to connect from
'localhost'. This ensures that someone cannot guess at
the root password from the network.

Disallow root login remotely? (Press y|Y for Yes, any other key for No) : #是否允许远程访问

 ... skipping.
By default, MySQL comes with a database named 'test' that
anyone can access. This is also intended only for testing,
and should be removed before moving into a production
environment.


Remove test database and access to it? (Press y|Y for Yes, any other key for No) : y #是否已出测试数据库
 - Dropping test database...
Success.

 - Removing privileges on test database...
Success.

Reloading the privilege tables will ensure that all changes
made so far will take effect immediately.

Reload privilege tables now? (Press y|Y for Yes, any other key for No) : y #是否重新加载特权表
Success.

All done! 

注释掉my.cnf 中的#bind-address = 127.0.0.1，不然不能远程访问

vi /usr/local/etc/my.cnf

设置mysql远程访问

mysql>use mysql;

mysql>
update user set host = '%' where user ='root';
mysql>flush privileges;
mysql>quit

大功告成