1、下载
版本路径：https://dev.mysql.com/downloads/file/?id=485812
2、安装mysql-8.0.16-winx64
安装完毕后，把mysql-8.0.16-winx64\bin目录设置到系统目录。
3、初始化 mysql
执行命令：mysqld --initialize --user=mysql --console
具体为：
D:\tools\DB\mysql-8.0.16-winx64\bin>mysqld --initialize --user=mysql --console
2019-05-29T02:53:44.964834Z 0 [System] [MY-013169] [Server] D:\tools\DB\mysql-8.
0.16-winx64\bin\mysqld.exe (mysqld 8.0.16) initializing of server in progress as
process 3972
2019-05-29T02:54:12.521410Z 5 [Note] [MY-010454] [Server] A temporary password i
s generated for [email protected]: ;o!#/UMer3:B
2019-05-29T02:54:23.912061Z 0 [System] [MY-013170] [Server] D:\tools\DB\mysql-8.
0.16-winx64\bin\mysqld.exe (mysqld 8.0.16) initializing of server has completed
D:\tools\DB\mysql-8.0.16-winx64\bin>
4、启动mysql服务
执行命令：net start MySQL
具体为：
C:\Users\hm>net start mysql
请求的服务已经启动。
5、登录mysql
执行命令：mysql -uroot -p
D:\tools\DB\mysql-8.0.16-winx64\bin>mysql -uroot -p
Enter password: ******
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 11
Server version: 8.0.16 MySQL Community Server - GPL
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
6、查看mysql服务端口号
执行命令：show global variables like ‘port’;
mysql> show global variables like 'port';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| port | 3306 |
+---------------+-------+
1 row in set, 1 warning (0.01 sec)
7、navicat连接本地mysql服务
出现如下报错，
解决办法：
1）删除navicat中的mysql数据库连接。
2）在命令行登录mysql，然后执行下面几步：
ALTER USER ‘root’@‘localhost’ IDENTIFIED BY ‘password’ PASSWORD EXPIRE NEVER;
ALTER USER ‘root’@‘localhost’ IDENTIFIED WITH mysql_native_password BY ‘123456’;
FLUSH PRIVILEGES;
然后再用navicat连接mysql，就可以登录成功了。见下图：
注： navicat工具试用期只有两周，建议使用navicat12018_premium_cs_x64.exe，并用Navicat+Premium+12+**补丁.rar，**其它版本可能无效。