mysql下，怎么利用数据表来实现多个序列的存储及递增

CREATE TABLE `sequence` (
 `seq_val` int(11) NOT NULL AUTO_INCREMENT COMMENT '序列id',
 `seq_name` varchar(128) NOT NULL DEFAULT '' COMMENT '序列名称',
 PRIMARY KEY (`seq_name`,`seq_val`),
 UNIQUE KEY `idx_seqname` (`seq_name`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8

public interfaceSequenceDao {
 @Insert("replace into wm_sequence(seq_name) values(#{seq_name})")
 @Options(useGeneratedKeys = true,keyProperty="seq_val")
 public void getSeqidByName(WmSequence seq);
}