D:\mysql-8.0.15-winx64\bin>mysqld --defaults-file=D:\mysql-8.0.15-winx64\my.ini --initialize --console
2019-03-16T06:11:12.538350Z 0 [System] [MY-013169] [Server] D:\mysql-8.0.15-winx64\bin\mysqld.exe (mysqld 8.0.15) initializing of server in progress as process 11136
2019-03-16T06:11:32.301846Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: K)gt#U*D8b;a
2019-03-16T06:11:41.101367Z 0 [System] [MY-013170] [Server] D:\mysql-8.0.15-winx64\bin\mysqld.exe (mysqld 8.0.15) initializing of server has completed
Navicat 连接mysql 显示 Clinet dose not support authentication protocol request by server
?1 在命令窗口 输入mysql -uroot -p?首先通过cmd进入mysql?
2 更改加密方式?
mysql>?ALTER?USER?‘root‘@‘localhost‘?IDENTIFIED?BY?‘password‘?PASSWORD?EXPIRE NEVER;
Query OK, 0?rows?affected (0.10 sec)
3 更改密码
mysql>?ALTER?USER?‘root‘@‘localhost‘?IDENTIFIED?WITH?mysql_native_password?BY?‘123‘;
Query OK, 0?rows?affected (0.35 sec)
?这个密码是navicat链接mysql 的密码
4刷新
mysql> FLUSH?PRIVILEGES;
Query OK, 0?rows?affected (0.28 sec)
原文：https://blog.51cto.com/357712148/2364006