MySQL5.7.21在Windows下安装教程

MySQL5.7.21在Windows下安装教程

本文主要介绍怎么在Windoes下安装MySQL5.7.21，需要准备的环境有：

• WindowsServer2012 R2
• mysql-5.7.21-winx64.zip

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准备环境

• 解压mysql-5.7.21-winx64.zip至当前目录，本文使用C盘根目录，为了方便，根目录命名为mysql
• 设置环境变量
  – 创建系统变量MYSQL_HOME，值为C:\mysql
  
  – 添加至PATH变量中，保存即可
  
  – 测试，打开cmd命令提示符，输入mysql。如下图示则为成功
  

安装mysql

• 创建my.ini文件，仅给出部分参数，其余参数依据需要添加

# 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]

port=3306
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=C:\mysql
datadir=C:\mysql\data
port=3306
# server_id = .....
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

#explicit_defaults_for_timestamp=true

max_connections=32000

#time
interactive_timeout=28800000
wait_timeout=28800000

• 安装mysql，注册为Windows服务
  mysqld install
  
• 初始化mysql，生成data文件夹，-insecure代表不安全，初始不生成密码即可登录
  mysqld --initialize-insecure --user=mysql
  
• 启动mysql服务
  net start mysql
  
• 登录mysql，初始登录不需要密码，直接回车即可
  mysql -u root -p
  
• 更新密码
  alter user 'root'@'localhost' identified by 'root';或update user set authentication_string=password('root') where user='root';括号中代表新密码
  flush privileges;
  
• 开启远程连接权限
  update user set host='%' where user='root';
flush privileges;
  或者
  grant all privileges on *.* to 'root'@'%' identified by 'root' with grant option;其中%可以替换成指定主机ip，identified by后跟密码
  flush privileges;

注意事项

• 缺少MSVCP120.dll文件
  运行mysql相关命令时可能会提示改错误，需要安装Visual C++组件， [下载地址]