mac上mysql启动和安装

前言

如果没有出现设置密码的选项，而是出现了下面的选项

1、停止MySQL服务。

可能在使用MySQLWorkBench之前，你就开启了MySQL服务，所以这里需要关闭MySQL服务。
关闭MySQL服务的操作：
苹果->系统偏好设置->最下边点MySQL 在弹出页面中 关闭mysql服务（点击stop mysql server）

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2、进入终端，指令重启MySQL服务。

0、打开终端：
1、输入指令1：（进入到mysql的bin目录下）
输入：cd /usr/local/mysql/bin/
2、输入指令2：
输入：sudo ./mysqld_safe --skip-grant-tables
3、输入指令2，会提示输入密码：（Mac账户的root用户密码）

4、输入密码后：会出现一堆提示：

Logging to '/usr/local/mysql-5.7.18-macos10.12-x86_64/data/ShiXiongweideMacBook-Pro.local.err'.
2017-06-17T06:35:38.6NZ mysqld_safe Starting mysqld daemon with databases from /usr/local/mysql-5.7.18-macos10.12-x86_64/data

5、然后会发现，MySQL会自动重启。

附：第二步步骤，我这边终端上指令代码，罗列如下：

ShiXiongweideMacBook-Pro:~ shixiongwei$ cd /usr/local/mysql/bin/
ShiXiongweideMacBook-Pro:bin shixiongwei$ sudo ./mysqld_safe --skip-grant-tables
Password:
Logging to '/usr/local/mysql-5.7.18-macos10.12-x86_64/data/ShiXiongweideMacBook-Pro.local.err'.
2017-06-17T06:35:38.6NZ mysqld_safe Starting mysqld daemon with databases from /usr/local/mysql-5.7.18-macos10.12-x86_64/data

3、另外开一个终端，设置MySQL密码。

0、另外再开一个终端：
1、输入指令1：（进入到mysql的bin目录下）
输入：cd /usr/local/mysql/bin/
2、输入指令2：
输入：./mysql
3、进入到mysql命令状态下：（mysql>是mysql命令状态提示）
输入：mysql> FLUSH PRIVILEGES;
4、设置密码admin123
输入：mysql> SET PASSWORD FOR ‘root’@‘localhost’ = PASSWORD(‘admin123’);

附：第三步步骤，我这边终端上指令代码，罗列如下：

ShiXiongweideMacBook-Pro:~ shixiongwei$ cd /usr/local/mysql/bin/
ShiXiongweideMacBook-Pro:bin shixiongwei$ ./mysql
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 34
Server version: 5.7.18 MySQL Community Server (GPL)

Copyright (c) 2000, 2017, 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.

mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.01 sec)

mysql> SET PASSWORD FOR 'root'@'localhost' = PASSWORD('123456');
Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> 

4、启动mysql

启动MySQL服务
sudo /usr/local/MySQL/support-files/mysql.server start

停止MySQL服务
sudo /usr/local/mysql/support-files/mysql.server stop

重启MySQL服务
sudo /usr/local/mysql/support-files/mysql.server restart