前提：

安装MYSQL实例

docker pull mysql

启动mysql(做了端口映射)

[root@localhost ~]# docker run -p 3306:3306 --name mysql02 -e MYSQL_ROOT_PASSWORD=123456 -d mysql

5cf11b6647da2f4d301020934cb8ef750d7215d3c25fb81a56d30fbfd1a24530

言归正传：解决方案如下：

在docker创建mysql容器后使用Navicat远程连接事报错：

操作起来：

先查看user表中的信息：

select host,user,plugin,authentication_string from mysql.user;

host 列中的 % 表示不限制IP ； localhost表示的是本机使用   plugin非mysql_native_password 则需要修改密码

alter user 'root'@'% 'IDENTIFIED WITH mysql_native_password BY '123';

// (注意SQL语句最后加上 ;)

//其中 root用户 密码为123 (按照你的用户 密码对应设置既可)

//最后刷新生效

flush privileges;

[root@localhost ~]# docker run -it --link mysql02:mysql --rm mysql sh -c 'exec mysql -h"$MYSQL_PORT_3306_TCP_ADDR" -P"$MYSQL_PORT_3306_TCP_PORT" -uroot -p"$M

YSQL_ENV_NYSQL_ROOT_PASSWORD"'

Enter password:

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 8

Server version: 8.0.11 MySQL Community Server - GPL

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> select host,user,plugin,authentication_string from mysql.user;

+-----------+------------------+-----------------------+------------------------------------------------------------------------+

| host | user | plugin | authentication_string |

+-----------+------------------+-----------------------+------------------------------------------------------------------------+

| % | root | caching_sha2_password | $A$005$*@A

| localhost | mysql.infoschema | mysql_native_password | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE |

| localhost | mysql.session | mysql_native_password | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE |

| localhost | mysql.sys | mysql_native_password | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE |

| localhost | root | caching_sha2_password | $A$005$vU(<0Km/fNjY\IW8Ma8ktz5xLyByDbtiEVsGqaIa5B/JzXfuXe9ez0d15VC |

+-----------+------------------+-----------------------+------------------------------------------------------------------------+

5 rows in set (0.03 sec)

mysql> Alter user 'root'@'% 'IDENTIFIED WITH mysql_native_password BY '123';

Query OK, 0 rows affected (0.06 sec)

mysql> flush privileges;