mac下MySQL 安装和使用

首先安装brew

执行brew install mysql@5.7

安装完成输出结构如下：

We've installed your MySQL database without a root password. To secure it run:
    mysql_secure_installation

MySQL is configured to only allow connections from localhost by default

To connect run:
    mysql -uroot

mysql@5.7 is keg-only, which means it was not symlinked into /opt/homebrew,
because this is an alternate version of another formula.

If you need to have mysql@5.7 first in your PATH, run:
  echo 'export PATH="/opt/homebrew/opt/mysql@5.7/bin:$PATH"' >> ~/.zshrc

For compilers to find mysql@5.7 you may need to set:
  export LDFLAGS="-L/opt/homebrew/opt/mysql@5.7/lib"
  export CPPFLAGS="-I/opt/homebrew/opt/mysql@5.7/include"

To start mysql@5.7 now and restart at login:
  brew services start mysql@5.7
Or, if you don't want/need a background service you can just run:
  /opt/homebrew/opt/mysql@5.7/bin/mysqld_safe --datadir\=/opt/homebrew/var/mysql
==> Summary
🍺  /opt/homebrew/Cellar/mysql@5.7/5.7.43: 321 files, 232.8MB
==> Running `brew cleanup mysql@5.7`...
Disable this behaviour by setting HOMEBREW_NO_INSTALL_CLEANUP.
Hide these hints with HOMEBREW_NO_ENV_HINTS (see `man brew`).
==> Caveats
==> mysql@5.7
We've installed your MySQL database without a root password. To secure it run:
    mysql_secure_installation

MySQL is configured to only allow connections from localhost by default

To connect run:
    mysql -uroot

mysql@5.7 is keg-only, which means it was not symlinked into /opt/homebrew,
because this is an alternate version of another formula.

If you need to have mysql@5.7 first in your PATH, run:
  echo 'export PATH="/opt/homebrew/opt/mysql@5.7/bin:$PATH"' >> ~/.zshrc

For compilers to find mysql@5.7 you may need to set:
  export LDFLAGS="-L/opt/homebrew/opt/mysql@5.7/lib"
  export CPPFLAGS="-I/opt/homebrew/opt/mysql@5.7/include"

To start mysql@5.7 now and restart at login:
  brew services start mysql@5.7
Or, if you don't want/need a background service you can just run:
  /opt/homebrew/opt/mysql@5.7/bin/mysqld_safe --datadir\=/opt/homebrew/var/mysql

按照提示，输入命令设置安全校验：

mysql_secure_installation

将环境变量加入本次环境：

echo 'export PATH="/opt/homebrew/opt/mysql@5.7/bin:$PATH"' >> ~/.zshrc

启动MySQL：

brew services start mysql@5.7

登录：

mysql -uroor -proot

停止MySQL：

brew services stop mysql@5.7