feat(xispeak): 新增Excel校验接口，只校验不保存到数据库

- JeecgController 新增 checkExcelByEasyExcel 基类方法，batchHandler 传 null 跳过入库
- ExcelImportListener 支持 batchHandler 为 null 时不攒 batch 内存
- BgXiSpeakController 新增 /checkExcelByEasyExcel 接口

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

jeecg-boot-base-core/src/main/java/org/jeecg/common/system/base/controller/JeecgController.java

@@ -237,6 +237,40 @@ public class JeecgController<T, S extends IService<T>> {
         }
     }
 
+    /**
+     * 通过EasyExcel校验数据，只返回校验结果，不保存到数据库
+     */
+    protected Result<?> checkExcelByEasyExcel(HttpServletRequest request, Class<T> clazz) {
+        MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
+        Map<String, MultipartFile> fileMap = multipartRequest.getFileMap();
+        MultipartFile file = fileMap.values().stream().findFirst().orElse(null);
+        if (file == null) {
+            return Result.error("未找到上传文件！");
+        }
+        try (InputStream inputStream = file.getInputStream()) {
+            long start = System.currentTimeMillis();
+            List<ExcelAnnotationUtils.ValidationError> errors = new ArrayList<>();
+            int total = ExcelAnnotationUtils.read(
+                    inputStream,
+                    clazz,
+                    null,
+                    BATCH_NUM,
+                    errors::addAll,
+                    dictQuery());
+            log.info("【EasyExcel校验】校验完成, 数据行数: {}, 耗时: {}毫秒", total, System.currentTimeMillis() - start);
+            if (!errors.isEmpty()) {
+                for (ExcelAnnotationUtils.ValidationError err : errors) {
+                    log.warn("【EasyExcel校验】校验失败, 行号: {}, 错误: {}", err.row(), err.messages());
+                }
+                return Result.error("文件校验不通过: 存在" + errors.size() + "行数据校验不通过，请修改后重新导入", errors);
+            }
+            return Result.ok("文件校验通过！数据行数：" + total);
+        } catch (IOException e) {
+            log.error("【EasyExcel校验】文件读取失败", e);
+            return Result.error("文件校验失败:" + e.getMessage());
+        }
+    }
+
     /**
      * 通过excel导入数据
      *

jeecg-boot-module/jeecg-module-tools/src/main/java/org/jeecg/common/util/excel/ExcelImportListener.java

@@ -47,7 +47,7 @@ public class ExcelImportListener<T> implements ReadListener<Map<Integer, String>
         this.displayToCode = displayToCode;
         this.batchHandler = batchHandler;
         this.errorHandler = errorHandler;
-        this.batch = new ArrayList<>(batchSize);
+        this.batch = batchHandler != null ? new ArrayList<>(batchSize) : null;
         this.errorBatch = new ArrayList<>(batchSize);
     }
 
@@ -133,12 +133,14 @@ public class ExcelImportListener<T> implements ReadListener<Map<Integer, String>
                 return;
             }
 
-            // 4. 成功加入批次
-            batch.add(obj);
+            // 4. 成功计数
             successCount[0]++;
-            if (batch.size() >= batchSize) {
-                batchHandler.accept(new ArrayList<>(batch));
-                batch.clear();
+            if (batchHandler != null) {
+                batch.add(obj);
+                if (batch.size() >= batchSize) {
+                    batchHandler.accept(new ArrayList<>(batch));
+                    batch.clear();
+                }
             }
 
         } catch (Exception e) {
@@ -158,7 +160,7 @@ public class ExcelImportListener<T> implements ReadListener<Map<Integer, String>
 
     @Override
     public void doAfterAllAnalysed(AnalysisContext context) {
-        if (!batch.isEmpty()) {
+        if (batchHandler != null && batch != null && !batch.isEmpty()) {
             batchHandler.accept(new ArrayList<>(batch));
             batch.clear();
         }

jeecg-module-supervision/src/main/java/org/jeecg/modules/bg/xispeak/controller/BgXiSpeakController.java

@@ -382,6 +382,14 @@ public class BgXiSpeakController extends JeecgController<BgXiSpeak, IBgXiSpeakSe
         return super.importExcelByEasyExcel(request, BgXiSpeak.class);
     }
 
+    /**
+     * 通过EasyExcel校验数据，只返回校验结果，不保存到数据库
+     */
+    @RequiresPermissions("bg.xispeak:bg_xi_speak:importExcel")
+    @RequestMapping(value = "/checkExcelByEasyExcel", method = RequestMethod.POST)
+    public Result<?> checkExcelByEasyExcel(HttpServletRequest request) {
+        return super.checkExcelByEasyExcel(request, BgXiSpeak.class);
+    }
 
 
     /**