引用 http://www.cnblogs.com/jack204/archive/2012/09/11/2680106.html
主要解决方向，JAVA与MYSQL中编码要统一。通常采用UTF-8.
这里虽然你在项目中设置了数据库采用UTF-8，但是那里不包括连接方式之类的。
1.查询自身MYSQL编码方式
代码语言：javascript复制MySQL默认编码是latin1
mysql> show variables like 'character%';
-------------------------- --------------------------
| Variable_name | Value |
-------------------------- --------------------------
| character_set_client | latin1 |
| character_set_connection | latin1 |
| character_set_database | latin1 |
| character_set_filesystem | binary |
| character_set_results | latin1 |
| character_set_server | latin1 |
| character_set_system | utf8 |
| character_sets_dir | D:MySQLsharecharsets |
-------------------------- -------------------------- 2.若项目用UTF8编码，则将MYSQL也改为UTF8编码。通过修改my.ini文件。添加如下几项，再重启MYSQL服务就好。
代码语言：javascript复制[mysql]
default-character-set = utf8
[mysql.server]
default-character-set = utf8
[mysqld_safe]
default-character-set = utf8
[client]
default-character-set = utf8
[mysqld]
character-set-server=utf8
collation-server=utf8_general_ci 
