diff --git a/xymanager_service/src/main/java/com/shxy/xymanager_service/impl/MntnServiceImpl.java b/xymanager_service/src/main/java/com/shxy/xymanager_service/impl/MntnServiceImpl.java
index 8d7d342..0ac6fa0 100644
--- a/xymanager_service/src/main/java/com/shxy/xymanager_service/impl/MntnServiceImpl.java
+++ b/xymanager_service/src/main/java/com/shxy/xymanager_service/impl/MntnServiceImpl.java
@@ -4,6 +4,7 @@ package com.shxy.xymanager_service.impl;
 import com.shxy.xymanager_common.entity.*;
 import com.shxy.xymanager_common.exception.ApiException;
 import com.shxy.xymanager_common.util.JSONUtil;
+import com.shxy.xymanager_common.util.StringUtils;
 import com.shxy.xymanager_dao.dao.*;
 import com.shxy.xymanager_service.service.CmdService;
 import com.shxy.xymanager_service.service.TerminalExtService;
@@ -105,10 +106,12 @@ public class MntnServiceImpl implements MntnService {
 
     private HashMap<String, Object> buildCmdMap(MntnCmds cmd) throws Exception {
         HashMap<String, Object> result = new HashMap<>();
-        HashMap<String, Object> data = JSONUtil.json2Object(cmd.getCmd(), HashMap.class);
-        result.putAll(data);
-        result.put("cid", cmd.getId());
-        result.put("cmd", cmd.getName());
+        if (StringUtils.isNotBlank(cmd.getCmd())) {
+            HashMap<String, Object> data = JSONUtil.json2Object(cmd.getCmd(), HashMap.class);
+            result.putAll(data);
+            result.put("cid", cmd.getId());
+            result.put("cmd", cmd.getName());
+        }
         if ("upgrade".equalsIgnoreCase(cmd.getName())) {
             result.put("isUpgrade", 1);
             result.put("sj", 1);