Mac下安装mysql5.7.31
⽬录
1.下载安装
2.配置环境变量
4.两种启动 mysql 的⽅式
5.初始化配置及修改密码
6.brew 安装 mysql（未检验）
⼀.下载安装
1.官⽹下载
2.到5.7.31版本
3.选择直接下载
4.安装
5.记下数据库临时密码，⼀路下⼀步完成安装
⼆.配置环境变量
1.在 terminal 中切换到⽤户的根⽬录，编辑./.bash_profile ⽂件
eternity@TheEternitydeMacBook-Pro ~ % cd ~
eternity@TheEternitydeMacBook-Pro ~ % pwd
/Users/eternity
eternity@TheEternitydeMacBook-Pro ~ % vim ./.bash_profile
2.进⼊ vim，配置 PATH 变量
export PATH=$PATH:/usr/local/mysql/bin
export PATH=$PATH:/usr/local/mysql/support-files
备注：
第⼀⾏的是为了 mysql -u root -p ⽅便使⽤
第⼆⾏的是为了使⽤命令⾏启动停⽌数据库使⽤
3.按下 esc 退出编辑模式，输⼊:wq 保存并退出
:wq
4.重新加载配置⽂件，并验证配置是否⽣效
eternity@TheEternitydeMacBook-Pro ~ % source ~/.bash_profile
eternity@TheEternitydeMacBook-Pro ~ % echo $PATH
/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/mysql/bin:/usr/local/mysql/support-files eternity@TheEternitydeMacBook-Pro /etc % mysql --version
mysql  Ver 14.14 Distrib 5.7.31, for macos10.14 (x86_64) using  EditLine wrapper
三.mysql 配置⽂件
1.在/etc ⽬录下新建 myf 配置⽂件，并赋予读写权限
eternity@TheEternitydeMacBook-Pro /etc % sudo touch myf
Password:
eternity@TheEternitydeMacBook-Pro /etc % ls|grep cnf
myf
eternity@TheEternitydeMacBook-Pro /etc % sudo chmod 777 myf
2.配置⽂件内容
# Example MySQL config file for medium systems.
#
# This is for a system with little memory (32M - 64M) where MySQL plays
# an important part, or systems up to 128M where MySQL is used together with
# other programs (such as a web server)
#
# 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:
# sql/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]
character-set-server=utf8
init_connect='SET NAMES utf8
port = 3306
socket = /tmp/mysql.sock
skip-external-locking
key_buffer_size = 16M
max_allowed_packet = 1M
table_open_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M
character-set-server=utf8
init_connect='SET NAMES utf8'
# 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
# (via the "enable-named-pipe" option) will render mysqld useless!
#
#skip-networking
# Replication Master Server (default)
# binary logging is required for replication
log-bin=mysql-bin
# binary logging format - mixed recommended
binlog_format=mixed
# required unique id between 1 and 2^32 - 1
# defaults to 1 if master-host is not set
# but will not function as a master if omitted
server-id = 1
# Replication Slave (comment out master section to use this)
#
# To configure this host as a replication slave, you can choose between
# two methods :
#
# 1) Use the CHANGE MASTER TO command (fully described in our manual) -
# the syntax is:
#
# CHANGE MASTER TO MASTER_HOST=<host>, MASTER_PORT=<port>,
# MASTER_USER=<user>, MASTER_PASSWORD=<password> ;
#
# where you replace <host>, <user>, <password> by quoted strings and
# <port> by the master's port number (3306 by default).
#
# Example:
#
# CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306, # MASTER_USER='joe', MASTER_PASSWORD='secret';
#
# OR
#
# 2) Set the variables below. However, in case you choose this method, then
# start replication for the first time (even unsuccessfully, for example
# if you mistyped the password in master-password and the slave fails to
# connect), the slave will create a master.info file, and any later
# change in this file to the variables' values below will be ignored and # overridden by the content of the master.info file, unless you shutdown # the slave server, delete master.info and restart the slaver server.
# For that reason, you may want to leave the lines below untouched
# (commented) and instead use CHANGE MASTER TO (see above)
#
# required unique id between 2 and 2^32 - 1
# (and different from the master)
# defaults to 2 if master-host is set
# but will not function as a slave if omitted
#server-id = 2
#
# The replication master for this slave - required
#master-host = <hostname>
#
# The username the slave will use for authentication when connecting # to the master - required
#master-user = <username>
#
# The password the slave will authenticate with when connecting to
# the master - required
#master-password = <password>
#
# The port the master is listening on.
# optional - defaults to 3306
#master-port = <port>
#
# binary logging - not required for slaves, but recommended
#log-bin=mysql-bin
# 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
default-character-set=utf8
[myisamchk]
key_buffer_size = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M
[mysqlhotcopy]
interactive-timeout
简易版
[mysqld]
default-storage-engine=INNODB
character-set-server=utf8
port = 3306
[client]
default-character-set=utf8
3.恢复默认权限
eternity@TheEternitydeMacBook-Pro /etc % ls -l|grep cnf
-rwxrwxrwx  1 root  wheel    4886  8 17 10:09 myf
eternity@TheEternitydeMacBook-Pro /etc % sudo chmod 644 myf eternity@TheEternitydeMacBook-Pro /etc % ls -l|grep cnf
-rw-r--r--  1 root  wheel    4886  8 17 10:09 myf
四.两种启动 mysql 的⽅式
1.⼀键启动。偏好设置下⼀键启动
①.到 mysql 服务
②.启动 mysql
3.启动完成的状态
2.命令⾏启动mysql下载配置
启动MySQL服务
sudo mysql.server start

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