mysql8.0.11客户端无法登陆

mysql8.0.11 默认加密方式【caching_sha2_password】，Navicat for MySQL和Navicat Premium 12客户端不支持。 

可以使用在数据库服务器上登录： 
mysql>use mysql; 
mysql> select user, host, plugin, authentication_string from user where user='test';
+------+------+-----------------------+------------------------------------------------------------------------+
| user | host | plugin                | authentication_string                                                  |
+------+------+-----------------------+------------------------------------------------------------------------+
| test | %    | caching_sha2_password | $A$005$7\m5O\%K/Y3'[email protected] |
+------+------+-----------------------+------------------------------------------------------------------------+
1 row in set (0.00 sec)

客户端找不到 caching_sha2_password 插件，可以创建新用户使用native加密方式或者修改

ALTER USER 'test'@'%' IDENTIFIED WITH mysql_native_password BY '123456a?'; 

这时候改一下登录密码就行