// ���طţ����put��־
final AppendMessageCommand appendCmd =
AppendMessageCommand.newBuilder().setMessageId(msgId)
.setPutCommand(ByteString.copyFrom(putCmd.encode().array())).build();
final TxCommand txCommand =
TxCommand.newBuilder().setCmdType(TxCommandType.APPEND_MSG).setCmdContent(appendCmd.toByteString())
.build();
final Tx tx = this.getInflyTx(putCmd.getTransactionId());
if (tx != null) {
location = this.journalStore.write(txCommand, null, tx.location, false);
}