Index: ssts-packing/src/main/java/com/forgon/disinfectsystem/packing/service/PackingManagerImpl.java
===================================================================
diff -u -r34953 -r34954
--- ssts-packing/src/main/java/com/forgon/disinfectsystem/packing/service/PackingManagerImpl.java	(.../PackingManagerImpl.java)	(revision 34953)
+++ ssts-packing/src/main/java/com/forgon/disinfectsystem/packing/service/PackingManagerImpl.java	(.../PackingManagerImpl.java)	(revision 34954)
@@ -8771,14 +8771,9 @@
 					if (materialAmount == 0) {
 						throw new RuntimeException("数据异常，请联系管理员！");
 					}
-					String mdKey = "_" + md.getName() + "_";
-					if(StringUtils.isNotBlank(md.getUnit())){
-						mdKey += md.getUnit();
-					}
-					mdKey += "_";
-					if(StringUtils.isNotBlank(md.getSpecification())){
-						mdKey += md.getSpecification();
-					}
+					String mdKey = "_" + md.getName() + "_" 
+					+ (StringUtils.isBlank(md.getUnit())?null:md.getUnit()) + "_" 
+					+ (StringUtils.isBlank(md.getSpecification())?null:md.getSpecification());
 					for (MaterialErrorDamageDetail detail : result) {
 						if(materialAmount <= 0){
 							break;
@@ -8834,11 +8829,11 @@
 				String type = keyArr[0];
 				String materialName = keyArr[1];
 				String unit = keyArr[2];
-				if(unit == null){
+				if("null".equals(unit)){
 					unit = "";
 				}
 				String specification = keyArr[3];
-				if(StringUtils.isNotBlank(specification)){
+				if(!"null".equals(specification)){
 					materialName += "[" + specification + "]";;
 				}
 				if(MaterialErrorDamageDetail.TYPE_ERROR.equals(type)){