货位号null处理

src/main/java/cn/hnthyy/thmz/controller/yf/YfWardPrescriptionController.java

@@ -152,7 +152,8 @@ public class YfWardPrescriptionController {
             });
             resultMap.put("code", 0);
             resultMap.put("message", "查询病房请领单药品汇总信息成功");
-            resultMap.put("data", yfWardVos.stream().sorted(Comparator.comparing(YfWardVo::getLocation)));
+            resultMap.put("data", yfWardVos.stream().sorted(Comparator.comparing(YfWardVo::getLocation, Comparator.nullsLast(String::compareTo)))
+                    .collect(Collectors.toList()));
             return resultMap;
         } catch (Exception e) {
             e.printStackTrace();