diff --git a/src/main/java/com/supwisdom/dlpay/api/controller/DoorApiAction.java b/src/main/java/com/supwisdom/dlpay/api/controller/DoorApiAction.java
index 6c46563..b79a73d 100644
--- a/src/main/java/com/supwisdom/dlpay/api/controller/DoorApiAction.java
+++ b/src/main/java/com/supwisdom/dlpay/api/controller/DoorApiAction.java
@@ -58,8 +58,9 @@
 
   @RequestMapping("/checkqrcode")
   @ResponseBody
-  public DoorQrcodeResponse resolveQrcode(@RequestParam(value = "qrcode",required = true,defaultValue = "")String qrcode) {
+  public DoorQrcodeResponse resolveQrcode(@RequestParam(value = "qrcode",required = true)String qrcode) {
       DoorQRCodeParam qrparam = new DoorQRCodeParam();
+
       qrparam.setQrcode(qrcode);
       DoorQrcodeResponse qrcoderesp = consumePropxy.qrcodequery(qrparam);
       return qrcoderesp;