1. 下载MySQL安装包
网盘下载 : https://pan.baidu.com/s/1DzzGRt8ClYzZV0a5vZT9JA 提取码: d6nf
2. 解压到合适的安装位置
- 我的解压位置：D:\MySQL\mysql-8.0.12-winx64
3. 配置环境变量
新建系统变量：MySQL_HOME，值为安装包解压目录：D:\MySQL\mysql-8.0.12-winx64 (此处修改为你的解压目录)
编辑系统变量Path，新增变量值：%MySQL_HOME%\bin
4. 新建my.ini
[mysql]
default-character-set=utf8
[mysqld]
# 以下两处修改为你的实际解压目录
# 设置MySQL的安装目录
basedir=D:\MySQL\mysql-8.0.12-winx64
# 设置MySQL的数据存放目录
datadir=D:\MySQL\mysql-8.0.12-winx64\data
port=3306
character-set-server=utf8
[client]
default-character-set=utf8
- 在MySQL_HOME目录下，复制以上代码，新建my.ini文件。以上只包含最基本配置（其他自定义配置可参考官方文档）
5. 初始化MySQL
- 以管理员身份打开cmd命令窗口，切换到MySQL_HOME目录的bin目录下（重要）
执行初始化指令：mysqld --initialize --user=mysql --console
D:\MySQL\mysql-8.0.12-winx64\bin>mysqld --initialize --user=mysql --console
2018-09-28T01:35:41.013128Z 0 [System] [MY-013169] [Server] D:\MySQL\mysql-8.0.1
2-winx64\bin\mysqld.exe (mysqld 8.0.12) initializing of server in progress as pr
ocess 23840
2018-09-28T01:35:55.823149Z 5 [Note] [MY-010454] [Server] A temporary password i
s generated for root@localhost: dLFFgfFdF1(b
2018-09-28T01:36:03.603160Z 0 [System] [MY-013170] [Server] D:\MySQL\mysql-8.0.1
2-winx64\bin\mysqld.exe (mysqld 8.0.12) initializing of server has completed
- 此处生成的随机密码为：dLFFgfFdF1(b（后续需要用到)
6. 安装并启动MySQL服务
执行安装指令：mysqld --install
启动服务：net start MySQL
D:\MySQL\mysql-8.0.12-winx64\bin>mysqld --install
Service successfully installed.
D:\MySQL\mysql-8.0.12-winx64\bin>net start MySQL
MySQL 服务正在启动 ..
MySQL 服务已经启动成功。
7.修改初始密码
执行指令：mysql -u root -p （回车之后输入随机密码）
修改密码：ALTER USER root@localhost IDENTIFIED BY '123456';
D:\MySQL\mysql-8.0.12-winx64\bin>mysql -u root -p
Enter password: ************
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.12
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> ALTER USER root@localhost IDENTIFIED BY '123456';
Query OK, 0 rows affected (0.17 sec)
- 修改完成之后，可以先退出，再使用新密码重新登录，验证是否修改成功
8.其他
- 解除MySQL只能localhost连接
UPDATE mysql.user set host='%' WHERE user = 'root';
FLUSH PRIVILEGES;
mysql> UPDATE mysql.user SET host='%' WHERE user = 'root';
Query OK, 1 row affected (0.09 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.01 sec)
