...

examcloud-exchange-inner-api-provider/src/main/java/cn/com/qmth/examcloud/exchange/inner/api/provider/UpyunCloudServiceProvider.java

@@ -42,8 +42,7 @@ public class UpyunCloudServiceProvider extends ControllerSupport implements Upyu
 	@Override
 	public PutFileResp putFile(PutFileReq req) {
 		HttpServletRequest request = getRequest();
-		String fileName = req.getFileName();
-		String fileSuffix = fileName.substring(fileName.lastIndexOf("."));
+		String fileSuffix = req.getFileSuffix();
 		Long rootOrgId = req.getRootOrgId();
 		Long userId = req.getUserId();
 		String siteId = req.getSiteId();