修改用户分配借阅bug

src/main/java/com/emr/controller/distributionManage/DistributionController.java

@@ -337,7 +337,9 @@ public class DistributionController {
                     list.add(roleReader);
                 }
             }
-            roleRearderService.SimpleInsert(list);
+			if(!CollectionUtils.isEmpty(list)) {
+				roleRearderService.SimpleInsert(list);
+			}
         }
         if(null != userId) {
             //与角色分配表对比，多出部分，flag设为1，减少部分flag设为0
@@ -392,7 +394,9 @@ public class DistributionController {
                     }
                 }
             }
-            userRearderService.SimpleInsert(list);
+			if(!CollectionUtils.isEmpty(list)) {
+				userRearderService.SimpleInsert(list);
+			}
         }
         return ResultUtil.ok();
     }