feat(credit): 改进用户导入功能并过滤空行

- 在尝试导入时增加对空行的过滤处理
- 添加 filterEmptyRows 方法以移除完全空白的导入行
- 扩展 fallback 导入逻辑至三种表头情况
- 移除对唯一标识字段非空的强制校验
- 提升导入稳定性与容错能力

src/main/java/com/gxwebsoft/credit/controller/CreditUserController.java

@@ -146,13 +146,16 @@ public class CreditUserController extends BaseController {
         int successCount = 0;
 
         try {
-            List<CreditUserImportParam> list = tryImport(file, 1, 1);
+            List<CreditUserImportParam> list = filterEmptyRows(tryImport(file, 1, 1));
           System.out.println("list = " + list);
             if (CollectionUtils.isEmpty(list)) {
-                list = tryImport(file, 0, 1); // fallback：无标题行，只有表头
+                list = filterEmptyRows(tryImport(file, 0, 1)); // fallback：无标题行，只有表头
             }
             if (CollectionUtils.isEmpty(list)) {
-                list = tryImport(file, 0, 2); // fallback：两行表头
+                list = filterEmptyRows(tryImport(file, 0, 2)); // fallback：两行表头
+            }
+            if (CollectionUtils.isEmpty(list)) {
+                list = filterEmptyRows(tryImport(file, 0, 3)); // fallback：三行表头
             }
             if (CollectionUtils.isEmpty(list)) {
                 return fail("未读取到数据，请确认模板表头与示例格式一致", null);
@@ -191,10 +194,6 @@ public class CreditUserController extends BaseController {
                         errorMessages.add("第" + (i + 1) + "行：项目名称不能为空");
                         continue;
                     }
-                    if (item.getCode() == null || item.getCode().trim().isEmpty()) {
-                        errorMessages.add("第" + (i + 1) + "行：唯一标识不能为空");
-                        continue;
-                    }
                   System.out.println("item = " + item);
 
                     if (creditUserService.save(item)) {
@@ -260,6 +259,35 @@ public class CreditUserController extends BaseController {
         return ExcelImportUtil.importExcel(file.getInputStream(), CreditUserImportParam.class, importParams);
     }
 
+    /**
+     * 过滤掉完全空白的导入行，避免空行导致导入失败
+     */
+    private List<CreditUserImportParam> filterEmptyRows(List<CreditUserImportParam> rawList) {
+        if (CollectionUtils.isEmpty(rawList)) {
+            return rawList;
+        }
+        rawList.removeIf(this::isEmptyImportRow);
+        return rawList;
+    }
+
+    private boolean isEmptyImportRow(CreditUserImportParam param) {
+        if (param == null) {
+            return true;
+        }
+        return isBlank(param.getName())
+                && isBlank(param.getCode())
+                && isBlank(param.getRole())
+                && isBlank(param.getInfoType())
+                && isBlank(param.getAddress())
+                && isBlank(param.getProcurementName())
+                && isBlank(param.getWinningName())
+                && isBlank(param.getWinningPrice());
+    }
+
+    private boolean isBlank(String value) {
+        return value == null || value.trim().isEmpty();
+    }
+
     /**
      * 将CreditUserImportParam转换为CreditUser实体
      */