Index: ssts-packing/src/main/java/com/forgon/disinfectsystem/packing/dwr/table/TousseInstanceTableManager.java
===================================================================
diff -u -r29529 -r30229
--- ssts-packing/src/main/java/com/forgon/disinfectsystem/packing/dwr/table/TousseInstanceTableManager.java	(.../TousseInstanceTableManager.java)	(revision 29529)
+++ ssts-packing/src/main/java/com/forgon/disinfectsystem/packing/dwr/table/TousseInstanceTableManager.java	(.../TousseInstanceTableManager.java)	(revision 30229)
@@ -749,7 +749,7 @@
 				}
 				List<String> sortOrder = new ArrayList<String>();
 				sortOrder.add("desc");
-				parameterMap.put("grid_sort_urgentLevel.grade desc,po.id", sortOrder);
+				parameterMap.put("grid_sort_case when urgentLevel.grade is null then 0 else urgentLevel.grade end desc,po.id", sortOrder);
 			}
 		}
 		//hql语句:where