从下载输出流COSObjectInputStream获取的图片数据错误

[kelincxm]

依赖

SpringBoot 2.4.2
cos_api 5.6.105

WebController

@RestController
public class WebController {
    @GetMapping("/download")
    public void downloadFile(HttpServletResponse response) {
        COSUtil.downloadFileByInputStream("img/flower.png", response);
    }
}

COSUtil

@Slf4j
public class COSUtil {
    private static final String SECRET_ID = "XXX";
    private static final String SECRET_KEY = "XXX";
    private static final String APPID = "XXX";
    private static final String BUCKET_NAME = "XXX-" + APPID;
    private static final String LOCATION_NAME = "XXX";
    
    public void downloadFileByInputStream(String remotePath, HttpServletResponse response) {
        COSCredentials credentials = new BasicCOSCredentials(SECRET_ID, SECRET_KEY);
        ClientConfig clientConfig = new ClientConfig(new Region(LOCATION_NAME));
        COSClient cosClient = new COSClient(credentials, clientConfig);
        GetObjectRequest getObjectRequest = new GetObjectRequest(BUCKET_NAME, remotePath);
        COSObject cosObject = cosClient.getObject(getObjectRequest);
        try (COSObjectInputStream cosObjectInput = cosObject.getObjectContent()) {
            byte[] buffer = new byte[cosObjectInput.available()];
            ServletOutputStream outputStream = response.getOutputStream();
            int read = cosObjectInput.read(buffer);
            while (read != -1) {
                outputStream.write(buffer);
                outputStream.flush();
                read = cosObjectInput.read(buffer);
            }
        } catch (IOException e) {
            log.error(e.getMessage());
        }
        cosClient.shutdown();
    }
}

原图

浏览器访问图片

[Jeffreykzli]

您好，通过您的描述暂时没法准确定位到问题，您可以提交工单，提供request ID等信息便于我们进一步分析问题原因