diff --git a/yudao-module-mes/yudao-module-mes-biz/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/mqtt/MqttServerDataController.java b/yudao-module-mes/yudao-module-mes-biz/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/mqtt/MqttServerDataController.java
index bcbc65917..2df1fcf7e 100644
--- a/yudao-module-mes/yudao-module-mes-biz/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/mqtt/MqttServerDataController.java
+++ b/yudao-module-mes/yudao-module-mes-biz/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/mqtt/MqttServerDataController.java
@@ -85,13 +85,13 @@ public class MqttServerDataController {
     }
     @Resource
     private FormulaRecordMapper formulaRecordMapper;
-    @GetMapping("/getSimulateValue")
+    @PostMapping("/getSimulateValue")
     @Operation(summary = "模拟数据最新值")
-    public CommonResult<String> getSimulateValue(@RequestParam("random")int random,@RequestParam("type")String type
+    public CommonResult<Double> getSimulateValue(@RequestParam("random")int random,@RequestParam("type")String type
             ,@RequestParam("id")Long id,@RequestParam("plusValue") double plusValue) {
         if(id!=null){
             FormulaRecordDO recordDO = formulaRecordMapper.selectById(id);
-            if(recordDO==null)return success("0.000");
+            if(recordDO==null)return success(BigDecimal.ZERO.doubleValue());
             if(random == 1){
                 if(type.equals("int")){
                     int i = RandomUtil.randomInt(1,10);
@@ -106,8 +106,8 @@ public class MqttServerDataController {
                recordDO.setDataValue(recordDO.getDataValue().add(BigDecimal.valueOf(plusValue)));
             }
             formulaRecordMapper.updateById(recordDO);
-            return success(recordDO.getDataValue().toString());
+            return success(recordDO.getDataValue().doubleValue());
         }
-        return success("0.000");
+        return success(BigDecimal.ZERO.doubleValue());
     }
 }
\ No newline at end of file