private boolean checkmsgsum(Object data, String touser, String userenc, String checksum) { String sdata = JSON.serialize(data); sdata = sdata.replaceAll("[ \\n\\r\\t]", ""); log.info(sdata); if (CommonUtil.eq(checksum, EncodeHelper.digest(sdata + touser + userenc, "SHA"))) return true; else return false; }