除了常规用安装包安装的方法之外
还有一种推荐的安装方法
brew doctor确认brew在正常工作。
- brew update更新包。
- brew install mysql 安装mysql。
brew install mysql
这样就是安装成功了 接下来是启动
学会使用brew info 软件名来查看提示 可以看到如下命令提示
To connect run:
mysql -uroot
To have launchd start mysql now and restart at login:
brew services start mysql
Or, if you don't want/need a background service you can just run:
mysql.server start
报xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: 这个错误是因为xcode没有安装或者缺失
重新xcode-select --install
回车后，系统弹出下载xcode，点击确认，下载完成后即可。（实际上不是下载xcode，可能下载xcode有关插件，下载时长约1分钟）
出现找不到这个命令的原因是
这是由于系统默认会查找/usr/bin下的命令，如果这个命令不在这个目录下，当然会找不到命令，我们需要做的就是映射一个链接到/usr/bin目录下，相当于建立一个链接文件。
mysql安装之后的目录 是在/usr/local/Cellar/mysql/5.7.21
解决方案 ：
vim ~/.bash_profile 添加： export PATH=$PATH:/usr/local/Cellar/mysql/5.7.21/bin 保存，退出
source ~/.bash_profile
然后输入 mysql -u -root -p即可完成
启动mysql
修改密码
mysql_secure_installation
发现成功执行命令
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: y There are three levels of password validation policy: LOW Length >= 8 MEDIUM Length >= 8, numeric, mixed case, and special characters STRONG Length >= 8, numeric, mixed case, special characters and dictionary file // 这里提示选一个密码强度等级 Please enter 0 = LOW, 1 = MEDIUM and 2 = STRONG: 1 Please set the password for root here. // 然后按照所选的密码强度要求设定密码 New password: Re-enter new password: Estimated strength of the password: 50 Do you wish to continue with the password provided?(Press y|Y for Yes, any other key for No) : y ... Failed! Error: Your password does not satisfy the current policy requirements New password: Re-enter new password: Estimated strength of the password: 100 Do you wish to continue with the password provided?(Press y|Y for Yes, any other key for No) : y 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. // 这里删除默认无密码用户 Remove anonymous users? (Press y|Y for Yes, any other key for No) : y Success. Normally, root should only be allowed to connect from 'localhost'. This ensures that someone cannot guess at the root password from the network. // 禁止远程root登录，我选的是不禁止。因为我的mac上的数据库不会放到公网上，也不会存什么敏感数据 Disallow root login remotely? (Press y|Y for Yes, any other key for No) : no ... 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. // 这里删除默认自带的test数据库 Remove test database and access to it? (Press y|Y for Yes, any other key for No) : y - 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 Success. All done!
最后登陆 mysql -u root -p
密码是xihanzhiwen