Index: forgon-core/src/main/java/com/forgon/serialnumber/service/SerialNumManagerImpl.java
===================================================================
diff -u -r12331 -r16472
--- forgon-core/src/main/java/com/forgon/serialnumber/service/SerialNumManagerImpl.java	(.../SerialNumManagerImpl.java)	(revision 12331)
+++ forgon-core/src/main/java/com/forgon/serialnumber/service/SerialNumManagerImpl.java	(.../SerialNumManagerImpl.java)	(revision 16472)
@@ -60,18 +60,28 @@
 		
 		if (StringUtils.isNotBlank(type)) {
 			
-			String sql = "select sn from SerialNum as sn where sn.type = '" + type + "'";
+			String sql = "where po.type = '" + type + "'";
 			
-			Query query = objectDao.getHibernateSession().createQuery(sql);
-			
-			if (withUpdateLock){
-				query.setLockMode("sn",LockMode.UPGRADE); // 加锁
+			Object object = null; 
+			if(withUpdateLock){
+				object = objectDao.getBySql_ForUpdate(SerialNum.class.getSimpleName(), sql);
+			}else{
+				object = objectDao.getBySql(SerialNum.class.getSimpleName(), sql);
 			}
 			
-			List list = query.list();// 执行查询，获取数据
-			if (list != null && list.size() >= 1) {
-				serialNum = (SerialNum) list.get(0);
+			if(object != null && object instanceof SerialNum){
+				serialNum = (SerialNum)object;
 			}
+			//Query query = objectDao.getHibernateSession().createQuery(sql);
+			
+//			if (withUpdateLock){
+//				query.setLockMode("sn",LockMode.FORCE); // 加锁
+//			}
+//			
+//			List list = query.list();// 执行查询，获取数据
+//			if (list != null && list.size() >= 1) {
+//				serialNum = (SerialNum) list.get(0);
+//			}
 		}
 		return serialNum;
 	}
@@ -188,6 +198,7 @@
 					serialNumObj.setSerialNumber("" + (num + PREFENTCH_SIZE));
 					objectDao.saveOrUpdate(serialNumObj);
 					objectDao.flush();
+					vo.setSerialNum(num - 1);
 					vo.setCount(PREFENTCH_SIZE);
 				}
 			}