除0错误修改

src/main/java/com/neotel/smfcore/core/dashboard/mimo/SmdBoxMimoController.java

@@ -230,7 +230,11 @@ public class SmdBoxMimoController {
             } else {
                 dto.setType(1);
             }
-            int usage = (storage.getTotalSlots() - storage.getEmptySlots()) * 100 / storage.getTotalSlots();
+
+            int usage = 0;
+            if(storage.getTotalSlots()>0){
+                usage= (storage.getTotalSlots() - storage.getEmptySlots()) * 100 / storage.getTotalSlots();
+            }
             dto.setUsage(usage);
 
             int inCount = getTodayInOutCount(storage.getId(), inOutDataList, true);