@Column(name = "message")
    @Lob
    private String message;

        String xml = "";
        try {
            is.reset();

            BufferedReader br = new BufferedReader(new InputStreamReader(is));
            StringBuilder sb = new StringBuilder();
            String line;
            while ((line = br.readLine()) != null) {
                sb.append(line);
            }
            br.close();
            xml = sb.toString();
        } catch (IOException exp) {
            logger.error("read stream error: ", exp);
        }