From 3859f7679c0eb705ba3312dd60a620d4cd307e89 Mon Sep 17 00:00:00 2001
From: "review512jwy@163.com" <“review512jwy@163.com”>
Date: Wed, 17 Dec 2025 13:04:42 +0800
Subject: [PATCH] =?UTF-8?q?=E6=95=B0=E6=8D=AE=E6=98=A0=E5=B0=84=E7=A9=BA?=
 =?UTF-8?q?=E7=BB=99{}?=
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---
 .../datacenter/business/service/impl/DeviceServiceImpl.java   | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/data-center-business-service/src/main/java/com/techsor/datacenter/business/service/impl/DeviceServiceImpl.java b/data-center-business-service/src/main/java/com/techsor/datacenter/business/service/impl/DeviceServiceImpl.java
index 4c50fe3..2211544 100644
--- a/data-center-business-service/src/main/java/com/techsor/datacenter/business/service/impl/DeviceServiceImpl.java
+++ b/data-center-business-service/src/main/java/com/techsor/datacenter/business/service/impl/DeviceServiceImpl.java
@@ -348,7 +348,7 @@ public class DeviceServiceImpl implements IDeviceService {
                 deviceInfo.setUnit("");
             }
             if (StringUtils.isBlank(deviceUpdateParams.getDataMapping())) {
-                deviceInfo.setDataMapping("");
+                deviceInfo.setDataMapping("{}");
             }
             this.deviceInfoMapperExt.updateByPrimaryKeySelective(deviceInfo);
 
@@ -953,7 +953,7 @@ public class DeviceServiceImpl implements IDeviceService {
                         deviceInfo.setUnit(deviceInfoExcel.getUnit());
                     }
                     if (StringUtils.isBlank(deviceInfoExcel.getDataMapping())){
-                        deviceInfo.setDataMapping("");
+                        deviceInfo.setDataMapping("{}");
                     } else {
                         deviceInfo.setDataMapping(deviceInfoExcel.getDataMapping());
                     }