1、下载免安装版压缩包
下载地址：http://dev.mysql.com/downloads/mysql/
- 选择符合你的操作系统的版本，点击download进入下载页面
- 不用注册也可以点击下载连接进行下载
2、安装
解压下载的压缩文件到你的mysql安装目录（目录能不能有中文没测试过，你可以试一下），以下是我的解压目录
- 复制解压目录D:\javaEnvironment\mysql-5.7.12-winx64下的my-default.ini命名为my.ini，打开my.ini添加如下配置、保存：
# 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.
[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. #skip-grant-tables basedir = "D:\javaEnvironment\mysql-5.7.12-winx64"
datadir = "D:\javaEnvironment\mysql-5.7.12-winx64\data"
tmpdir = "D:\javaEnvironment\mysql-5.7.12-winx64\data"
socket = "D:\javaEnvironment\mysql-5.7.12-winx64\data\mysql.sock"
port = 3306
log-error = "D:\javaEnvironment\mysql-5.7.12-winx64\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:\javaEnvironment\mysql-5.7.12-winx64\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 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 = 32M
read_rnd_buffer_size = 32M
max_allowed_packet = 32M
explicit_defaults_for_timestamp = true sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
- 设置环境变量，在环境变量path变量中后面添加上上面的mysql解压目录的bin路劲D:\javaEnvironment\mysql-5.7.12-winx64\bin，注意添加前加上‘;’号
- win+r,输入cmd进入windows Dos界面
- 进入解压的/bin目录下，（重要）执行命令mysqld --initialize，5.7之后需要初始化生成数据库文件（根目录下的data文件），否则后续无法启动服务
- 执行命令mysqld -install，安装mysql服务
- 执行命令net start mysql，启动服务
- 执行命令mysql -uroot -p，会报错ERROR 1045(28000)，需要设置登录密码
- 打开配置文件my.ini，将skip-grant-tables前面的#去掉，然后重启服务，再次登录就可略过密码
-
进入mysql数据库，依次执行以下命令：
use mysql;
update user set authentication_string=password("root") where user="root"; //注意：这里"root"修改为你的密码，如："123456"
flush privileges;
quit;
- 打开配置文件my.ini，在skip-grant-tables前面加上#注释掉，然后重启服务，使用设置的密码再次登录
- mysql登陆后执行：SET PASSWORD = PASSWORD('123456'); 原因参考官网说明：http://dev.mysql.com/doc/refman/5.6/en/alter-user.html。（ps:英文不好，没看懂，看懂的可以给我指点一下）
- 然后就可以在版本的mysql客户端SQLyog中连接mysql server了,但是这时候别的机器还不能访问本机的mysql server，如下三步操作解决问题:
- use mysql; //进入mysql数据库
- update user set host = '%' where user = 'root'; //可能是你的帐号不允许从远程登陆，只能在localhost。这个时候只要在localhost的那台电脑，登入mysql后，更改 "mysql" 数据库里的 "user" 表里的 "host" 项，从"localhost"改称"%"
- GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' WITH GRANT OPTION; //赋予任何主机访问数据的权限
- FLUSH PRIVILEGES //修改生效