历史统计数据，错误提示

ln_jq_app/lib/pages/b_page/history/controller.dart

@@ -32,6 +32,30 @@ class HistoryController extends GetxController {
     final args = Get.arguments as Map<String, dynamic>;
     stationName = args['stationName'] as String;
     fetchHistoryData();
+    getAllOrderCounts();
+  }
+
+  Future<void> getAllOrderCounts() async {
+    var response = await HttpService.to.post(
+      "appointment/orderAddHyd/getAllOrderCounts",
+      data: {
+        'stationName': stationName, // 加氢站名称
+      },
+    );
+    if (response == null || response.data == null) {
+      totalHydrogen.value = '0 kg';
+      totalCompletions.value = '0 次';
+      return;
+    }
+    try {
+      final baseModel = BaseModel<dynamic>.fromJson(response.data);
+      final dataMap = baseModel.data as Map<String, dynamic>;
+      totalHydrogen.value = '${dataMap['totalAddAmount'] ?? 0} kg';
+      totalCompletions.value = '${dataMap['orderCompleteCount'] ?? 0} 次';
+    } catch (e) {
+      totalHydrogen.value = '0 kg';
+      totalCompletions.value = '0 次';
+    }
   }
 
   Future<void> fetchHistoryData() async {
@@ -60,9 +84,6 @@ class HistoryController extends GetxController {
       if (baseModel.code == 0 && baseModel.data != null) {
         final dataMap = baseModel.data as Map<String, dynamic>;
 
-        totalHydrogen.value = '${dataMap['totalHydrogen'] ?? 0} kg';
-        totalCompletions.value = '${dataMap['totalCompletions'] ?? 0} 次';
-
         final List<dynamic> listFromServer = dataMap['records'] ?? [];
         historyList.assignAll(
           listFromServer
@@ -83,8 +104,6 @@ class HistoryController extends GetxController {
   }
 
   void _resetData() {
-    totalHydrogen.value = '0 kg';
-    totalCompletions.value = '0 次';
     historyList.clear();
     hasData.value = false;
   }