Mac 下 MySQL 環境搭建
摘要：
Mac 下安裝 MySQL 還是很方便的, 總結來看有2個方法。
方法一：用dmg映象安裝
1、安裝
官網
下載好 MySQL Mac 版安裝包，常規步驟安裝，安裝過程中會出現如下提示：
2019-03-24T18:27:31.043133Z 1 [Note] A...
Mac 下安裝 MySQL 還是很方便的, 總結來看有2個方法。
方法一：用dmg映象安裝
1、安裝
官網 下載好 MySQL Mac 版安裝包，常規步驟安裝，安裝過程中會出現如下提示：
2019-03-24T18:27:31.043133Z 1 [Note] A temporary password is generated for root@localhost: TdfRm19!o0Xi
其中TdfRm19!o0Xi
是初始密碼，最好先記住！
2、登陸
在終端命令列 登陸mysql:
$ mysql -u root -p # 輸入上述密碼即可
如果這一步提示:bash: mysql: command not found
, 執行下面2個命令做個軟連線即可：
cd /usr/local/bin ln -fs /usr/local/mysql-8.0.11-macos10.13-x86_64/bin/mysql mysql
3、修改密碼
在 MySQL8.0.4 以前，執行SET PASSWORD=PASSWORD('新密碼')
即可。但新版本不能這樣改了，因為密碼認證變了。具體步驟可以參考https://blog.csdn.net/yi247630676/article/details/80352655
。
方法二：用 Homebrew 進行安裝
總所周知，Mac 可以利用 homebrew 進行安裝管理，十分方便，如果沒有安裝 homebrew, 可以點選https://brew.sh/ 安裝。
下面是 mysql 的安裝方式
$ brew install mysql# 安裝指定版本： brew install [email protected]
接下來只要等待就可以了，出現下面文字後我們已經很清楚我們需要做什麼了：
==> mysql 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 -u root 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
按說明繼續執行，進行初始化操作：
$ myysql_secure_installation
初始化過程中會有很多問題，以下是具體問題部分，以註釋為解釋：
Would you like to setup VALIDATE PASSWORD component? Press y|Y for Yes, any other key for No: Y## 回覆y 需要密碼8位以上，回覆n 則不做限制 The password validation component is not available. Proceeding with the further steps without the component. Please set the password for root here. New password:## 設定你的密碼 Re-enter new password:## 再次輸入你的密碼 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## 是否移除匿名使用者。考慮安全我選了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. Disallow root login remotely? (Press y|Y for Yes, any other key for No) : Y## 是否允許遠端連mysql 的 root。我用做本地除錯，不是遠端伺服器，所以y了 Success. 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y了刪除test資料庫，我選了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## 選y, 重新載入許可權列表 Success. All done!
到此配置就結束了，下面我們啟動 mysql 即可，記住以下命令：
$ mysql -u root -p## 登陸 mysql $ brew services start [email protected]## 啟動 mysql $ brew services stop [email protected]## 停止 mysql $ mysql.server start## 啟動 mysql(無後臺服務)