1下载mysql http://dev.mysql.com/downloads/mysql/
2解压后，新建一个data文件夹，复制my-default.ini,并改名为my.ini，添加下面内容
[client]
default-character-set = utf8
[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:\Develop\mysql\mysql-5.7.15-winx64
datadir = D:\Develop\mysql\mysql-5.7.15-winx64\data
port = 3306
server_id = 62
character-set-server=utf8
collation-server=utf8_general_ci
default-storage-engine=INNODB

3在path添加mysql环境变量
4用管理员身份运行cmd，进进入mysqm的bin目录(一定要进入bin目录，否则后面安装会出错)，运行下面命令
mysqld --initialize --user=mysql --console
命令运行完成后，最后会产生一个随机密码，这个就是原创密码，要记录下来

5安装mysql到windows服务
mysqld --install MySQL

6启动mysql服务
net start mysql

7登陆进入mysql后，修改mysql密码
SET PASSWORD = PASSWORD('123456');
flush privileges;