MySQL8.0 caching_sha2_password报错问题

在bin目录下执行mysql -uroot -p123456

登录后执行：

use mysql;

select host, user, plugin from user;

打印：

+-----------+------------------+-----------------------+
| host | user | plugin |
+-----------+------------------+-----------------------+
| localhost | mysql.infoschema | caching_sha2_password |
| localhost | mysql.session | caching_sha2_password |
| localhost | mysql.sys | caching_sha2_password |
| localhost | root | caching_sha2_password |
+-----------+------------------+-----------------------+
4 rows in set (0.00 sec)

发现新版MySQL都是默认用caching_sha2_password这个plugin来加密密码了，HeidiSQL无法接入。现改成原生密码的加密方式。

执行：

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '123456';
 
flush privileges;

就可以了。再执行上面的查询语句，返回：

+-----------+------------------+-----------------------+
| host | user | plugin |
+-----------+------------------+-----------------------+
| localhost | mysql.infoschema | caching_sha2_password |
| localhost | mysql.session | caching_sha2_password |
| localhost | mysql.sys | caching_sha2_password |
| localhost | root | mysql_native_password |
+-----------+------------------+-----------------------+
4 rows in set (0.00 sec)

可知，已经改mysql_native_password插件了。