代码调整

pqs-advance/advance-boot/src/main/java/com/njcn/advance/controller/govern/voltage/SgEventController.java

@@ -106,6 +106,13 @@ public class SgEventController extends BaseController {
     @OperateInfo(info = LogEnum.BUSINESS_COMMON, operateType = OperateType.ADD)
     public HttpResult<String> importEventData(@RequestParam("file") MultipartFile file, @RequestParam("incomingLineId") String incomingLineId, @RequestParam("productLineId") String productLineId, HttpServletResponse response) {
         String methodDescribe = getMethodDescribe("importEventData");
+
+        // 检查文件MIME类型是否为csv
+        String contentType = file.getContentType();
+        if (!"text/csv".equals(contentType)) {
+            throw new BusinessException(AdvanceResponseEnum.INVALID_FILE_TYPE);
+        }
+
         ImportParams params = new ImportParams();
         params.setHeadRows(1);
         params.setNeedVerify(true);