配置如图
root是系统账号 root0是应用登陆的一个只有CURD权限但是没有更改表结构的账号
现在是远程开发应用可以连接 远程可以通过sqlyogg连接 但是在数据库所在的主机上无法连接（root正常）
....www/data$ mysql -uroot0 -p
Enter password:
ERROR 1045 (28000): Access denied for user 'root0'@'localhost' (using password: YES)
有没有 flush privileges ?
我在本机的操作:
MariaDB [test]> create user 'h2'@'%' identified by 'h2';
Query OK, 0 rows affected (0.00 sec)
MariaDB [test]> flush privileges;
Query OK, 0 rows affected (0.00 sec)
MariaDB [test]> select user, password, host from mysql.user where user = 'h2';
+------+-------------------------------------------+------+
| user | password | host |
+------+-------------------------------------------+------+
| h2 | *196646D09F946D08C707DF3A0BCC3C9A2899E21B | % |
+------+-------------------------------------------+------+
1 row in set (0.00 sec)
xxoo@localhost ~ % mysql -uh2 -p
Enter password:
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 969
Server version: 10.0.17-MariaDB-log MariaDB Server
Copyright (c) 2000, 2015, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MariaDB [(none)]> exit
Bye
感觉是不是 localhost和127.0.0.1 那两个重复了，你先试着修改一个看看行不行。