安裝

Mysql默認安裝在/usr/local目錄下，這個目錄可以通過command+shift+G進入：

進入后選擇mysql安裝文件夾。

配置文件

Mac上Mysql默認沒有配置文件，需要自己添加，可以support-file 文件目錄下的my-default.cnf復制一份到桌面上，可以把文件中的內容全部替換為一下內容

# Example MySQL config file for small systems. # # This is for a system with little memory (<= 64M) where MySQL is only used # from time to time and it's important that the mysqld daemon # doesn't use much resources. # # MySQL programs look for option files in a set of # locations which depend on the deployment platform. # You can copy this option file to one of those # locations. For information about these locations, see: # http://dev.mysql.com/doc/mysql/en/option-files.html # # In this file, you can use all long options that a program supports. # If you want to know which options a program supports, run the program # with the "--help" option. # The following options will be passed to all MySQL clients [client] default-character-set=utf8 #password = your_password port = 3306 socket = /tmp/mysql.sock # Here follows entries for some specific programs # The MySQL server [mysqld] default-storage-engine=INNODB character-set-server=utf8 collation-server=utf8_general_ci port = 3306 socket = /tmp/mysql.sock skip-external-locking key_buffer_size = 16K max_allowed_packet = 1M table_open_cache = 4 sort_buffer_size = 64K read_buffer_size = 256K read_rnd_buffer_size = 256K net_buffer_length = 2K thread_stack = 128K # Don't listen on a TCP/IP port at all. This can be a security enhancement, # if all processes that need to connect to mysqld run on the same host. # All interaction with mysqld must be made via Unix sockets or named pipes. # Note that using this option without enabling named pipes on Windows # (using the "enable-named-pipe" option) will render mysqld useless! # #skip-networking server-id = 1 # Uncomment the following if you want to log updates #log-bin=mysql-bin # binary logging format - mixed recommended #binlog_format=mixed # Causes updates to non-transactional engines using statement format to be # written directly to binary log. Before using this option make sure that # there are no dependencies between transactional and non-transactional # tables such as in the statement INSERT INTO t_myisam SELECT * FROM # t_innodb; otherwise, slaves may diverge from the master. #binlog_direct_non_transactional_updates=TRUE # Uncomment the following if you are using InnoDB tables #innodb_data_home_dir = /usr/local/mysql/data #innodb_data_file_path = ibdata1:10M:autoextend #innodb_log_group_home_dir = /usr/local/mysql/data # You can set .._buffer_pool_size up to 50 - 80 % # of RAM but beware of setting memory usage too high #innodb_buffer_pool_size = 16M #innodb_additional_mem_pool_size = 2M # Set .._log_file_size to 25 % of buffer pool size #innodb_log_file_size = 5M #innodb_log_buffer_size = 8M #innodb_flush_log_at_trx_commit = 1 #innodb_lock_wait_timeout = 50 [mysqldump] quick max_allowed_packet = 16M [mysql] no-auto-rehash # Remove the next comment character if you are not familiar with SQL #safe-updates [myisamchk] key_buffer_size = 8M sort_buffer_size = 8M [mysqlhotcopy] interactive-timeout

來源：https://www.tuicool.com/articles/QBFZV3R
然后保存，將文件名my-default.cnf 改為my.cnf,然后將其放到etc目錄下，關于如何進入etc目錄，和前面的方法一樣：

注意，這個etc目錄不是在Mysql安裝目錄下的，所以在安裝目錄下找不到！然后重啟Mysql即可。

后續配置文件的修改

如果以后還要修改配置文件中的內容怎么辦？也是找到etc目錄下的my.cnf文件，如果直接打開編輯，會發現沒有修改權限。當然，有一種方法是和前面一樣，把文件復制到桌面上，修改里面的內容，然后重新替換掉原來etc目錄下的文件，還有一種解決方法：通過控制臺用vim打開該文件,在控制臺輸入如下指令：

cd /private/etc sudo vim my.cnf

然后輸入開機密碼，即可打開my.cnf :

打開后按下鍵盤I，最下方會出現INSERT 單詞，進入編輯模式，代表現在可以修改該文件，只需要修改你想修改的配置即可，注意要在英文輸入的狀態下按鍵盤I，修改完成后按下esc,退出編輯模式。然后按下shift+Q,輸入wq 保存并退出：

常用指令：

:wq 保存后退出vim :wq! 強制儲存后退出 :w 保存但不退出 :w! 若文件屬性為只讀時，強制寫入該檔案 :q 退出vi :q! 若曾修改過檔案，又不想儲存，使用 ! 為強制離開不儲存檔案。

總結

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