在 Windows7 上按照 MySQL5.7
1、从官网下载最新版本的 MySQL，这里下载的是 mysql-5.7.17-win32；
2、将下载的 mysql-5.7.17-win32.zip 解压到指定的文件夹下，这里的目标文件夹是 E:\develop；
3、复制 my-default.ini 文件并将新的文件命名为 my.ini；
4、根据自己的 MySQL 解压到的目录配置 my.ini 文件，这里的 my.ini 配置如下：
####################配置文件开始###################
# 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]
character-set-server=utf8
collation-server=utf8_general_ci
port=3306
basedir ="E:\develop\mysql-5.7.17-win32"
datadir ="E:\develop\mysql-5.7.17-win32/data/"
tmpdir ="E:\develop\mysql-5.7.17-win32/data/"
socket ="E:\develop\mysql-5.7.17-win32/data/mysql.sock"
log-error="E:\develop\mysql-5.7.17-win32/data/mysql_error.log"
#server_id = 2
#skip-locking
max_connections=100
table_open_cache=256
query_cache_size=1M
tmp_table_size=32M
thread_cache_size=8
innodb_data_home_dir="E:\develop\mysql-5.7.17-win32\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
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"
#sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
#################### 配置文件结束 ###################
5、配置 MySQL 的环境变量，在系统区域创建 MySQL_HOME 变量，值为 MySQL 的安装目录，这里的是 E:\develop\mysql-5.7.17-win32；
将 MySQL_HOME 加入到 path 变量中，即 %MySQL_HOME%\bin;
6、以管理员身份打开命令行工具 CMD 并进入到 MySQL 的命令 bin 目录，这里为 E:\develop\mysql-5.7.17-win32\bin；
7、执行如下命令：
7.1 mysqld --initialize --user=mysql --console
创建用户表，生成如下信息：
E:\develop\mysql-5.7.17-win32\bin>mysqld --initialize --user=mysql --console
2017-01-04T01:02:43.711502Z 0 [Warning] 'NO_ZERO_DATE', 'NO_ZERO_IN_DATE' and 'E
RROR_FOR_DIVISION_BY_ZERO' sql modes should be used with strict mode. They will
be merged with strict mode in a future release.
2017-01-04T01:02:44.326080Z 0 [Warning] InnoDB: New log files created, LSN=45790
2017-01-04T01:02:44.675125Z 0 [Warning] InnoDB: Creating foreign key constraint
system tables.
2017-01-04T01:02:44.791639Z 0 [Warning] No existing UUID has been found, so we a
ssume that this is the first time that this server has been started. Generating
a new UUID: 802e6595-d219-11e6-bcf8-10604b7f46dc.
2017-01-04T01:02:44.806141Z 0 [Warning] Gtid table is not ready to be used. Tabl
e 'mysql.gtid_executed' cannot be opened.
2017-01-04T01:02:44.814642Z 1 [Note] A temporary password is generated for root@
localhost: tFhwFqiA)0oQ
其中的 tFhwFqiA)0oQ 为 MySQL 为我们生成的临时密码，一定要记下来，后面要用到；
7.2 安装服务：
mysqld install MySQL --defaults-file="E:\develop\mysql-5.7.17-win32\my.ini"
7.3 启动服务：
net start mysql
7.4 进入到 MySQL 命令行界面：
mysql -uroot -p
在提示下输入步骤 7.1 中生成的临时密码；
7.5 修改用户 root 的密码（必须修改，不然无法通过）：
set password = password('123456')
8、查看 MySQL 的字符编码：
SHOW VARIABLES LIKE '%character%';
mysql> SHOW VARIABLES LIKE '%character%';
+--------------------------+-----------------------------------------------+
| Variable_name | Value |
+--------------------------+-----------------------------------------------+
| character_set_client | utf8 |
| character_set_connection | utf8 |
| character_set_database | utf8 |
| character_set_filesystem | binary |
| character_set_results | utf8 |
| character_set_server | utf8 |
| character_set_system | utf8 |
| character_sets_dir | E:\develop\mysql-5.7.17-win32\share\charsets\ |
+--------------------------+-----------------------------------------------+
8 rows in set, 1 warning (0.00 sec)
说明我们的字符编码配置都为 UTF8。
9、好了，至此我们完成了 MySQL 的安装，开始愉快的编程之旅吧！
