fix bugs
	modified:   src/main/java/com/dms/common/dao/AbstractHibernateDAO.java
	modified:   src/main/java/com/dms/om/controller/OrderController.java
	modified:   src/main/java/com/dms/om/dao/IOrderDAO.java
	modified:   src/main/java/com/dms/om/dao/OrderDAO.java
	modified:   src/main/java/com/dms/om/model/Order.java
	modified:   src/main/java/com/dms/om/service/IOrderService.java
	modified:   src/main/java/com/dms/om/service/OrderService.java
	modified:   src/main/resources/messages_zh_CN.properties
	modified:   src/main/webapp/WEB-INF/jsp/om/createOrder.jsp
	modified:   src/main/webapp/WEB-INF/jsp/om/viewOrder.jsp
	modified:   src/main/webapp/WEB-INF/jsp/om/viewOrders.jsp