一、确认windows 是否已经安装mysql
1.按【Win+R】打开运行
2.输入【services.msc】打开服务
3、在服务列表中查找MySQL，如果有mysql服务则表示Windows已经安装MySQL，如果没有MySQL服务则表示Windows没有安装MySQL
二、下载MySQL 安装包
1、mysql 官网下载地址 https://dev.mysql.com/downloads/mysql/
2.选择 No thanks, just start my download.
三.添加配置文件
1.将下载的zip包,解压到想要安装的目录下
2.进入解压后的目录，在bin同等级目录下新建my.ini
3.编辑my.ini,将以下配置粘贴到my.ini
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.6/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.
[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.
# 设置mysql的安装目录
# basedir = D:/mysql-8.0.33-winx64/mysql-8.0.33-winx64
basedir = C:/software/mysql-8.1.0-winx64
# 设置mysql数据库的数据的存放目录
# datadir = D:/mysql-8.0.33-winx64/mysql-8.0.33-winx64/data
datadir = C:/software/mysql-8.1.0-winx64/data
# 设置3306端口
port = 3306
# server_id = .....
# 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
# 允许最大连接数
max_connections = 200
# 允许连接失败的次数。这是为了防止有人从该主机试图攻击数据库系统
max_connect_errors = 10
# 服务端使用的字符集默认为UTF8
character-set-server = utf8mb4
# 创建新表时将使用的默认存储引擎
default-storage-engine = INNODB
# 默认使用“mysql_native_password”插件认证
default_authentication_plugin = mysql_native_password
[mysql]
# 设置mysql客户端默认字符集
default-character-set = utf8mb4
[client]
# 设置mysql客户端连接服务端时默认使用的端口
port=3306
default-character-set = utf8mb4
[mysqld]
skip-grant-tables
4.编辑my.ini,修改basedir 和 datadir
四 、安装MySQL
1、管理员运行cmd，进入bin目录
2、生成初始化密码
mysqld --initialize --console
3、执行第二条命令,安装mysql服务
mysqld --install mysql
4、启动mysql服务
五、修改root 密码
1.在MySQL安装目录下的bin目录下，启动cmd，进入命令提示符后执行以下命令
2.修改root密码为：123456
ALTER USER 'root'@'localhost' IDENTIFIED BY '123456';
3. 创建新的管理员账号
create user 'admin'@'localhost' identified by 'admin';
4. 授权管理员账号
GRANT ALL PRIVILEGES ON *.* TO 'admin'@'localhost';
FLUSH PRIVILEGES;
5. 使用管理员账号登录
