一、Navicat无法链接
1、命令行模式下进入mysql
2、输入命令:ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '数据库密码';
3、输入命令:FLUSH PRIVILEGES;
4、navicat链接mysql成功
二、PHPmyadmin无法访问
1、修改my.ini 路径C:\ProgramData\MySQL\MySQL Server 8.0
[mysqld]
port=3306
character-set-server=utf8
default_authentication_plugin=mysql_native_password
[mysql]
default-character-set=utf8
[client]
default-character-set=utf8
2、重启mysql80服务