diff --git a/ruoyi-admin/src/main/java/org/dromara/web/service/IotService.java b/ruoyi-admin/src/main/java/org/dromara/web/service/IotService.java
index 37ae5dfc6..acd262a95 100644
--- a/ruoyi-admin/src/main/java/org/dromara/web/service/IotService.java
+++ b/ruoyi-admin/src/main/java/org/dromara/web/service/IotService.java
@@ -38,7 +38,7 @@ public class IotService {
      */
     public String httpCtlPostSend(String deviceCode,String cmd){
         DeviceCtlDto dto = new DeviceCtlDto();
-        DeviceCtlDto.Params params = dto.getParams();
+        DeviceCtlDto.Params params = new DeviceCtlDto.Params();
         params.setCommand(cmd);
         dto.setParams(params);
         Map<String, String> paramMap = new HashMap<>();
diff --git a/ruoyi-admin/src/test/java/org/dromara/test/IotHttpTest.java b/ruoyi-admin/src/test/java/org/dromara/test/IotHttpTest.java
index 691820c2a..3c8b6e137 100644
--- a/ruoyi-admin/src/test/java/org/dromara/test/IotHttpTest.java
+++ b/ruoyi-admin/src/test/java/org/dromara/test/IotHttpTest.java
@@ -69,10 +69,10 @@ public class IotHttpTest {
     @Test
     public void testMethod(){
         String deviceCode = "4cd72020-2b11-11ef-890f-e7ba493dc999";
-        String cmd = "";
+        String cmd = "{\"method\":\"zzctest\",\"params\":{\"switch\":\"on\"}}";
 
-//        String result = httpCtlPostSend(deviceCode,cmd);
-//        System.out.println(result);
+        String result = httpCtlPostSend(deviceCode,cmd);
+        System.out.println(result);
 
         String result2 = httpTelemetryGetSend(deviceCode);
         System.out.println(result2);
@@ -93,7 +93,7 @@ public class IotHttpTest {
      */
     public String httpCtlPostSend(String deviceCode,String cmd){
         DeviceCtlDto dto = new DeviceCtlDto();
-        DeviceCtlDto.Params params = dto.getParams();
+        DeviceCtlDto.Params params = new DeviceCtlDto.Params();
         params.setCommand(cmd);
         dto.setParams(params);
         Map<String, String> paramMap = new HashMap<>();