1.从mysql网站下载mysql-5.7.7-rc-winx64.zip；
2.将mysql-5.7.7-rc-winx64.zip解压到相应的安装目录中（例如：D:\dev_tools目录下）；
3.将D:\dev_tools\mysql-5.7.7文件加下的my-default.ini文件命名为my.ini；
4.修改my.ini文件（不修改也可以）：
# For advice on how to change settings pleasesee
#http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html
# *** DO NOT EDIT THIS FILE. It's a templatewhich will be copied to the
# *** default location during install, and willbe replaced if you
# *** upgrade to a newer version ofMySQL.
[client]
default-character-set=utf8
[mysqld]
# Remove leading # and set to the amount of RAMfor the most important data
# cache in MySQL. Start at 70% of total RAM fordedicated server, else 10%.
# innodb_buffer_pool_size = 128M
# Remove leading # to turn on a very importantdata integrity option: logging
# changes to the binary log betweenbackups.
# log_bin
# These are commonly set, remove the # and setas required.
basedir ="D:\dev_tools\mysql-5.7.7"
datadir ="D:\dev_tools\mysql-5.7.7\data"
tmpdir ="D:\dev_tools\mysql-5.7.7\data"
socket ="D:\dev_tools\mysql-5.7.7\data\mysql.sock"
port = 3306
log-error ="D:\dev_tools\mysql-5.7.7\data\mysql_error.log"
# server_id = .....
max_connections = 100
table_open_cache = 256
query_cache_size = 1M
tmp_table_size = 32M
thread_cache_size = 8
innodb_data_home_dir ="D:\dev_tools\mysql-5.7.7\data\"
innodb_flush_log_at_trx_commit = 1
innodb_log_buffer_size = 128M
innodb_buffer_pool_size = 128M
innodb_log_file_size = 10M
innodb_thread_concurrency = 16
innodb-autoextend-increment = 1000
# Remove leading # to set options mainly usefulfor reporting servers.
# The server defaults are faster fortransactions and fast SELECTs.
# Adjust sizes as needed, experiment to find theoptimal values.
join_buffer_size = 128M
sort_buffer_size = 32M
read_rnd_buffer_size = 32M
max_allowed_packet = 32M
explicit_defaults_for_timestamp =true
sql_mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"
5.配置环境变量，即将“D:\dev_tools\mysql-5.7.7\bin”添加到path中（注意变量之间用“;”隔开）；
6.添加服务：打开cmd命令模式，切换到目录“D:\dev_tools\mysql-5.7.7\bin”，执行mysqld-install mysql57（可配，默认为mysql）；
mysqld --initialize 要进行data文件的初始化
7.启动服务：在cmd命令模式下，输入net startmysql57，数据库即可启动。
8.修改root密码：
随机生成的密码在日志文件中可以查看，没错就是在initialize命令下生成的那个data文件
在 xxx.err文件中进行寻找
命令行执行：mysql –u root -p
mysql> SETpassword=PASSWORD('123456');
mysql> FLUSH PRIVILEGES;
mysql> QUIT