no message

@@ -140,6 +140,7 @@ public class CourseController extends BaseController {
                             byte[] fileBytes = null;
                             try {
                                 InputStream inputStream = storage.getObjectContent(sysOss.getUrl());
+                                log.info("======inputStream===="+inputStream.available());
                                 ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
                                 byte[] buffer = new byte[8192]; // 或者根据实际情况选择合适的缓冲区大小
                                 int bytesRead;
@@ -148,6 +149,7 @@ public class CourseController extends BaseController {
                                 }
                                 byteArrayOutputStream.flush();
                                 fileBytes = byteArrayOutputStream.toByteArray();
+                                log.info("======fileBytes.length===="+fileBytes.length);
                                 byte[] encryptBytes = EncryptUtils.encryptByAes(fileBytes);
                                 uploadResult = storage.uploadSuffix(encryptBytes, suffix, "text/plain");
                             } catch (Exception e) {