背景
用docker构建mysql容器后连接遇到以下问题
登录提示caching_sha2_password问题解决方法

解决方案：

1.进入容器：docker exec -it 62349aa31687 /bin/bash

2. mysql -u root -p

查看身份验证类型
mysql> use mysql;
Database changed

mysql> SELECT Host, User, plugin from user;
±----------±-----------------±----------------------+
| Host | User | plugin |
±----------±-----------------±----------------------+
| % | root | caching_sha2_password |
| localhost | mysql.infoschema | caching_sha2_password |
| localhost | mysql.session | caching_sha2_password |
| localhost | mysql.sys | caching_sha2_password |
| localhost | root | caching_sha2_password |
±----------±-----------------±----------------------+
5 rows in set (0.00 sec)
t 用户的验证器插件为 caching_sha2_password

修改身份验证类型(修改密码)
mysql> ALTER USER ‘root’@’%’ IDENTIFIED WITH mysql_native_password BY ‘123456’;
Query OK, 0 rows affected (0.00 sec)

mysql> ALTER USER ‘root’@‘localhost’ IDENTIFIED WITH mysql_native_password BY ‘123456’;
Query OK, 0 rows affected (0.01 sec)
使生效
mysql> FLUSH PRIVILEGES;
1
验证是否生效
mysql> SELECT Host, User, plugin from user;
±----------±-----------------±----------------------+
| Host | User | plugin |
±----------±-----------------±----------------------+
| % | root | mysql_native_password |
| localhost | mysql.infoschema | caching_sha2_password |
| localhost | mysql.session | caching_sha2_password |
| localhost | mysql.sys | caching_sha2_password |
| localhost | root | mysql_native_password |
±----------±-----------------±----------------------+
5 rows in set (0.00 sec)