grails + mysql 中文乱码的问题

如有中文乱码,需要修改:
1.mysql目录下的my.ini,在[mysqld]和[mysql]下面添加:
default_character_set=utf8
2.修改Datasource.groovy中的数据库url
url = "jdbc:mysql://localhost/mydb?useUnicode=true&characterEncoding=utf-8"
添加后面的useUnicode=true&characterEncoding=utf-8参数.

在mysql命令行输入下面的命令
show variables like 'character%';
会得到如下的效果:
mysql> show variables like 'character%';
+--------------------------+-------------------------------------+
| Variable_name            | Value                               |
+--------------------------+-------------------------------------+
| character_set_client     | utf8                                |
| character_set_connection | utf8                                |
| character_set_database   | utf8                                |
| character_set_filesystem | binary                              |
| character_set_results    | utf8                                |
| character_set_server     | utf8                                |
| character_set_system     | utf8                                |
| character_sets_dir       | D:\MySQL Server 5.0\share\charsets\ |
+--------------------------+-------------------------------------+
8 rows in set (0.00 sec)