diff --git a/src/main/java/com/ycwl/basic/service/pc/impl/StatisticsServiceImpl.java b/src/main/java/com/ycwl/basic/service/pc/impl/StatisticsServiceImpl.java
index 8d64bc2f..b7775169 100644
--- a/src/main/java/com/ycwl/basic/service/pc/impl/StatisticsServiceImpl.java
+++ b/src/main/java/com/ycwl/basic/service/pc/impl/StatisticsServiceImpl.java
@@ -111,21 +111,21 @@ public class StatisticsServiceImpl implements StatisticsService {
             List<HashMap<String, String>> statsData,
             List<HashMap<String, String>> orderData) {
 
-        // 将订单数据转为 Map 以便快速查找
+        // 将订单数据转为 Map 以便快速查找（使用 Object 类型处理数值）
         Map<String, HashMap<String, String>> orderMap = orderData.stream()
                 .collect(Collectors.toMap(
-                        m -> m.get("t"),
+                        m -> String.valueOf(m.get("t")),
                         m -> m,
                         (existing, replacement) -> existing
                 ));
 
         // 合并数据
         for (HashMap<String, String> stat : statsData) {
-            String timeKey = stat.get("t");
+            String timeKey = String.valueOf(stat.get("t"));
             HashMap<String, String> order = orderMap.get(timeKey);
             if (order != null) {
-                stat.put("orderCount", order.get("orderCount"));
-                stat.put("orderAmount", order.get("orderAmount"));
+                stat.put("orderCount", String.valueOf(order.get("orderCount")));
+                stat.put("orderAmount", String.valueOf(order.get("orderAmount")));
             } else {
                 stat.put("orderCount", "0");
                 stat.put("orderAmount", "0");