mysql 出错了．
java.sql.SQLException: Unknown character set index for field '13105' received from server.
java.sql.SQLException: Unknown character set index for field '12340' received from server.
目标编码：GB2312
java.sql.SQLException: Unknown character set index for field '13106' received from server.
java.sql.SQLException: Unknown character set index for field '13362' received from server.
目标编码：GB2312
java.sql.SQLException: Unknown character set index for field '13617' received from server.
java.sql.SQLException: Unknown character set index for field '13877' received from server.

'13105'　每次查询这个数字会变

以前是正常的，都用了２年了．今天出现这个问题，很奇怪．．．

[解决办法]
按下贴中方法检查一下字符集设置。

http://blog.csdn.net/ACMAIN_CHM/archive/2009/05/12/4174186.aspx
MySQL 中文显示乱码
[解决办法]
还真没见过这个错误
[解决办法]
mysql字符乱码问题。