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;
}
