修复资源无法设置价格的问题

src/main/java/com/ctrip/fun/golf/dao/product/ResourcePriceDao.java

@@ -129,7 +129,7 @@ public class ResourcePriceDao extends GenericHibernateDao<ResourcePrice, Integer
         query.setParameter("priceDate", date);
         query.setParameter("resourceId", resourceId);  
         List<ResourcePrice> list =  (List<ResourcePrice>)query.list();
-        return list.get(0);
+        return list.size()>0?list.get(0):null;
 
     }