版本：mysql-5.7.16-winx64

平臺：Windows 7 x64

1、配置path環境變數（如D:\JAVA\mysql）新增到環境變數中。

2、進入mysql主目錄

3、拷貝mysql主目錄下的my-default.ini檔案，將其改名為my.ini，最簡單的配置如下所示：

# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html
# *** DO NOT EDIT THIS FILE. It's a template which will be copied to the
# *** default location during install, and will be replaced if you
# *** upgrade to a newer version of MySQL.

[mysqld]

# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M

# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin

# These are commonly set, remove the # and set as required.
basedir = D:\JAVA\mysql
datadir = D:\JAVA\mysql\data
port = 3306
max_connections = 20
character-set-server = utf8


# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M 

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES 
 

上圖可見，mysql沒有data目錄，接下來我們需要初始化data目錄

4、執行：mysqld --initialize

5、安裝mysql：mysqld install mysql --defaults-file="D:\JAVA\mysql\my.ini"

6、啟動mysql：net start mysql

後記：

在初始化時如果加上 –initial-insecure，則會建立空密碼的 [email protected] 賬號，否則會建立帶密碼的 [email protected] 賬號

密碼儲存在：data資料夾下的*.err檔案中

：2016-11-25T04:05:29.713660Z 1 [Note] A temporary password is generated for

修改預設密碼：

修改當前登入使用者的密碼：

SET PASSWORD = PASSWORD('123');

修改指定使用者的密碼：
SET PASSWORD FOR [email protected] = PASSWORD('123');

其中，[email protected]需要與user表中的User和Host匹配。