更新

src/main/java/com/template/controller/WelcomeBedController.java

@@ -679,7 +679,8 @@ public class WelcomeBedController implements WelcomeBedControllerAPI {
     public CommonResult isCheck(String studentCard) {
         WelcomeBedCheckVo vo=welcomeBedService.isCheck(studentCard);
         if (ObjectUtils.isEmpty(vo)) {
-            vo.setIsCheck(0);
+           vo=new WelcomeBedCheckVo();
+           vo.setIsCheck(0);
         }
         return CommonResult.ok(vo);
     }