fix: 修复员工导入异步方法的实现

## 问题
- importEmployeeAsync方法在返回CompletableFuture之前同步调用了doImport()
- 方法上有@Transactional注解,会导致事务管理问题
- 不是真正的异步执行

## 解决方案
- 移除importEmployeeAsync方法上的@Transactional注解
- 使用CompletableFuture.supplyAsync()在importExecutor线程池中异步执行doImport
- 将@Transactional注解移到doImport方法上
- 注入importExecutor线程池

## 技术细节
- @Async注解会将方法提交到线程池执行
- CompletableFuture.supplyAsync()确保doImport在独立线程中执行
- 事务在doImport方法中管理,避免异步方法事务问题

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/service/impl/CcdiEmployeeServiceImpl.java

@@ -25,6 +25,8 @@ import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
 import java.util.*;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.Executor;
 import java.util.concurrent.TimeUnit;
 import java.util.stream.Collectors;
 
@@ -43,6 +45,9 @@ public class CcdiEmployeeServiceImpl implements ICcdiEmployeeService {
     @Resource
     private RedisTemplate<String, Object> redisTemplate;
 
+    @Resource
+    private Executor importExecutor;
+
     /**
      * 查询员工列表
      *
@@ -235,7 +240,6 @@ public class CcdiEmployeeServiceImpl implements ICcdiEmployeeService {
      */
     @Override
     @Async("importExecutor")
-    @Transactional
     public CompletableFuture<ImportResultVO> importEmployeeAsync(List<CcdiEmployeeExcel> excelList, Boolean isUpdateSupport) {
         String taskId = UUID.randomUUID().toString();
         long startTime = System.currentTimeMillis();
@@ -255,30 +259,40 @@ public class CcdiEmployeeServiceImpl implements ICcdiEmployeeService {
         redisTemplate.opsForHash().putAll(statusKey, statusData);
         redisTemplate.expire(statusKey, 7, TimeUnit.DAYS);
 
-        try {
+        // 使用CompletableFuture.supplyAsync在独立的executor中异步执行doImport
-            // 执行导入
+        return CompletableFuture.supplyAsync(() -> {
-            ImportResult result = doImport(excelList, isUpdateSupport, taskId);
+            try {
+                // 在独立线程中执行导入
+                ImportResult result = doImport(excelList, isUpdateSupport, taskId);
 
-            // 更新最终状态
+                // 更新最终状态
-            String finalStatus = result.getFailureCount() == 0 ? "SUCCESS" : "PARTIAL_SUCCESS";
+                String finalStatus = result.getFailureCount() == 0 ? "SUCCESS" : "PARTIAL_SUCCESS";
-            updateImportStatus(taskId, finalStatus, result, startTime);
+                updateImportStatus(taskId, finalStatus, result, startTime);
 
-        } catch (Exception e) {
+                // 构建返回结果
-            // 处理异常
+                ImportResultVO resultVO = new ImportResultVO();
-            Map<String, Object> errorData = new HashMap<>();
+                resultVO.setTaskId(taskId);
-            errorData.put("status", "FAILED");
+                resultVO.setStatus(finalStatus);
-            errorData.put("message", "导入失败: " + e.getMessage());
+                resultVO.setMessage("导入完成");
-            errorData.put("endTime", System.currentTimeMillis());
-            redisTemplate.opsForHash().putAll(statusKey, errorData);
-        }
 
-        // 立即返回结果,不等待后台任务完成
+                return resultVO;
-        ImportResultVO result = new ImportResultVO();
-        result.setTaskId(taskId);
-        result.setStatus("PROCESSING");
-        result.setMessage("导入任务已提交,正在后台处理");
 
-        return CompletableFuture.completedFuture(result);
+            } catch (Exception e) {
+                // 处理异常
+                Map<String, Object> errorData = new HashMap<>();
+                errorData.put("status", "FAILED");
+                errorData.put("message", "导入失败: " + e.getMessage());
+                errorData.put("endTime", System.currentTimeMillis());
+                redisTemplate.opsForHash().putAll(statusKey, errorData);
+
+                ImportResultVO resultVO = new ImportResultVO();
+                resultVO.setTaskId(taskId);
+                resultVO.setStatus("FAILED");
+                resultVO.setMessage("导入失败: " + e.getMessage());
+
+                return resultVO;
+            }
+        }, importExecutor);
     }
 
     /**
@@ -426,6 +440,7 @@ public class CcdiEmployeeServiceImpl implements ICcdiEmployeeService {
     /**
      * 执行导入逻辑
      */
+    @Transactional
     private ImportResult doImport(List<CcdiEmployeeExcel> excelList, Boolean isUpdateSupport, String taskId) {
         List<CcdiEmployee> newRecords = new ArrayList<>();
         List<CcdiEmployee> updateRecords = new ArrayList<>();