diff --git a/src_core/com/tenwa/util/SerialNumberUtil.java b/src_core/com/tenwa/util/SerialNumberUtil.java
index 3feea96ac..09166d3e5 100644
--- a/src_core/com/tenwa/util/SerialNumberUtil.java
+++ b/src_core/com/tenwa/util/SerialNumberUtil.java
@@ -330,6 +330,7 @@ public class SerialNumberUtil {
 	 * **/
 	protected static synchronized String getSerialNumberByDay(String serialNumberPattern,int numberCount,Map<String,String> model,String type,Integer queryYear,Integer queryMonth,Integer queryDay,JBOTransaction tx) throws Exception
 	{
+		JBOTransaction newTx=JBOFactory.createJBOTransaction();
 		String currentDateTime = DateAssistant.getTodayNow();
 		String currentYear = currentDateTime.substring(0,4);
 		String monthStr =  currentDateTime.substring(5,7);
@@ -358,7 +359,7 @@ public class SerialNumberUtil {
 		paramMap.put("minute", minute+"");
 		paramMap.put("second", second+"");
 		
-		int maxOrderNumber = getMaxOrderNumberByDay(type, year,month,day, tx);
+		int maxOrderNumber = getMaxOrderNumberByDay(type, year,month,day, newTx);
 		StringBuffer numberFormat = new StringBuffer();
 		for(int i=0;i<numberCount;i++)
 		{
@@ -373,7 +374,7 @@ public class SerialNumberUtil {
 		}
 		
 		String serialNumberString = getSerialNumber(paramMap, serialNumberPattern);
-		
+		newTx.commit();
 		return serialNumberString;
 	}
 	//考虑并发情况必须采用同步机制