diff --git a/bonus-modules/bonus-material-mall/src/main/java/com/bonus/material/iot/controller/IotDataController.java b/bonus-modules/bonus-material-mall/src/main/java/com/bonus/material/iot/controller/IotDataController.java
index b30265a..0c16935 100644
--- a/bonus-modules/bonus-material-mall/src/main/java/com/bonus/material/iot/controller/IotDataController.java
+++ b/bonus-modules/bonus-material-mall/src/main/java/com/bonus/material/iot/controller/IotDataController.java
@@ -18,7 +18,7 @@ import java.util.concurrent.ConcurrentMap;
 public class IotDataController {
 
     // 使用线程安全的Map临时存储最新数据
-    private static final ConcurrentMap<String, GpsData> latestData = new ConcurrentHashMap<>();
+    private static final ConcurrentMap<String, GpsData> LATEST_DATA = new ConcurrentHashMap<>();
 
     // 接收MQTT数据的接口
     @PostMapping("/api/mqtt/data")
@@ -26,7 +26,7 @@ public class IotDataController {
         try {
             GpsData gpsData = parseMqttData(mqttData);
             // 存储最新数据，key可以用设备UUID
-            latestData.put(gpsData.getUuid(), gpsData);
+            LATEST_DATA.put(gpsData.getUuid(), gpsData);
             return "数据接收并存储成功";
         } catch (Exception e) {
             return "数据解析失败: " + e.getMessage();
@@ -35,13 +35,15 @@ public class IotDataController {
 
     // 新增接口供HTML页面获取数据
     @GetMapping("/api/mqtt/latest-data")
-    public AjaxResult getLatestData(@RequestParam(required = false) String uuid) {
-        if (uuid == null && !latestData.isEmpty()) {
+    public Object[] getLatestData(@RequestParam(required = false) String uuid) {
+        if (uuid == null && !LATEST_DATA.isEmpty()) {
             // 如果没有指定UUID，返回第一个设备的数据
-            GpsData data = latestData.values().iterator().next();
-            return AjaxResult.success(data);
+            //return LATEST_DATA.values().iterator().next();
+
+            // 如果没有指定UUID, 返回全部数据
+            return LATEST_DATA.values().toArray();
         }
-        return AjaxResult.warn("", latestData.get(uuid));
+        return new GpsData[]{LATEST_DATA.get(uuid)};
     }
 
     private GpsData parseMqttData(String rawData) {