1下载

https://cdn.mysql.com//Downloads/MySQL-8.0/mysql-8.0.31-winx64.zip

2解压到D盘

D:\mysql-8.0.31-winx64

3在解压后的目录中创建my.ini文件

[mysql]
# 设置mysql客户端默认字符集
default-character-set=utf8
[mysqld]
# 设置3306端口
port = 3306
# 设置mysql的安装目录
basedir=D:\mysql-8.0.31-winx64
# 设置mysql数据库的数据的存放目录
datadir=D:\mysql-8.0.31-winx64\data
# 允许最大连接数
max_connections=200
# 设置mysql服务端默认字符集
character-set-server=utf8
# 创建新表时将使用的默认存储引擎
default-storage-engine=INNODB

4配置环境变量

右键--属性--高级系统设置--环境变量--选择系统变量path--编辑--新建--D:\mysql-8.0.31-winx64

5初始化mysql

注意用管理员身份运行cmd

C:\Windows\system32>d:
D:\>cd D:\mysql-8.0.31-winx64\bin
D:\mysql-8.0.31-winx64\bin>mysqld --initialize --user=mysql --console

6初始化并记住密码

D:\mysql-8.0.31-winx64\bin>mysqld --initialize --user=mysql --console
password is generated for root@localhost: /EIJfQtNZ8?a

7初始化并启动

D:\mysql-8.0.31-winx64\bin>mysqld install MySQL --defaults-file="D:\mysql-8.0.31-winx64\my.ini"
Service successfully installed.

D:\mysql-8.0.31-winx64\bin>net start mysql
MySQL 服务正在启动 .
MySQL 服务已经启动成功。

如遇报错的解决办法如下

D:\mysql-8.0.31-winx64\bin>mysqld install MySQL
The service already exists!
The current server installed: "D:\Program Files\mysql-8.0.31-winx64\bin\mysqld" MySQL

D:\mysql-8.0.31-winx64\bin>sc query mysql

SERVICE_NAME: mysql
TYPE : 10 WIN32_OWN_PROCESS
STATE : 1 STOPPED
WIN32_EXIT_CODE : 0 (0x0)
SERVICE_EXIT_CODE : 0 (0x0)
CHECKPOINT : 0x0
WAIT_HINT : 0x7d0

D:\mysql-8.0.31-winx64\bin>sc delete mysql
[SC] DeleteService 成功

 

8修改登录密码

mysql -u root -p/EIJfQtNZ8?a
alter user 'root'@'localhost' identified by '123456';