SQL Server 单条语句参数上限（官方限制 2100）

src/main/java/com/xujie/sys/modules/ecss/service/impl/CoDelExcelServiceImpl.java

@@ -69,6 +69,20 @@ import java.util.stream.Stream;
 @Service
 @Slf4j
 public class CoDelExcelServiceImpl implements CoDelExcelService {
+    /**
+     * batchSaveEcssCoDelNotifyDetail 每行参数个数（与 CoDelMapper.xml 中 values 字段保持一致）
+     */
+    private static final int NOTIFY_DETAIL_PARAM_COUNT_PER_ROW = 39;
+    /**
+     * 明细分批插入条数，避免单次请求参数超限
+     */
+    private static final int SQL_SERVER_PARAM_SAFE_LIMIT = 2000;
+    /**
+     * 使用安全阈值（2000）而不是理论上限（2100），给 SQL 预留余量
+     */
+    private static final int NOTIFY_DETAIL_BATCH_SIZE =
+            Math.max(1, SQL_SERVER_PARAM_SAFE_LIMIT / NOTIFY_DETAIL_PARAM_COUNT_PER_ROW);
+
     @Autowired
     private QcMapper qcMapper;
     @Autowired
@@ -305,7 +319,7 @@ public class CoDelExcelServiceImpl implements CoDelExcelService {
                     list.get(i).setDelNo(transNo);
                     list.get(i).setItemNo(i + 1);
                 }
-                coDelMapper.batchSaveEcssCoDelNotifyDetail(list);
+                batchSaveNotifyDetailSafely(list);
 
                 // 加入成功列表
                 successList.add("发票号：" + cmcInvoice + " 导入成功");
@@ -321,6 +335,20 @@ public class CoDelExcelServiceImpl implements CoDelExcelService {
         return resultMap;
     }
 
+    /**
+     * 分批保存明细，规避 SQL Server 单次请求 2100 参数上限
+     */
+    private void batchSaveNotifyDetailSafely(List<EcssCoDelNotifyData> detailList) {
+        if (detailList == null || detailList.isEmpty()) {
+            return;
+        }
+        for (int start = 0; start < detailList.size(); start += NOTIFY_DETAIL_BATCH_SIZE) {
+            int end = Math.min(start + NOTIFY_DETAIL_BATCH_SIZE, detailList.size());
+            List<EcssCoDelNotifyData> subList = new ArrayList<>(detailList.subList(start, end));
+            coDelMapper.batchSaveEcssCoDelNotifyDetail(subList);
+        }
+    }
+
 
     /**
      * 安全获取字符串列值（支持可选列）
@@ -1212,7 +1240,7 @@ public class CoDelExcelServiceImpl implements CoDelExcelService {
         boolean hasPnOrQtyModified = excelList.stream()
                 .anyMatch(item -> item.getModifyQtyFlag() != null && item.getModifyQtyFlag());
 
-        coDelMapper.batchSaveEcssCoDelNotifyDetail(excelList);
+        batchSaveNotifyDetailSafely(excelList);
         headerData.setModifyFlag(true);
         // 更新头表字段，包括ReadyDate、ShippingMode、Destination
         coDelMapper.updateEcssDelHeader(headerData);