public boolean exeSend(AbstractRpcConnector con) { boolean hasSend = false; RpcOioConnector connector = (RpcOioConnector) con; DataOutputStream dos = connector.getOutputStream(); while (connector.isNeedToSend()) { RpcObject rpc = connector.getToSend(); RpcUtils.writeDataRpc(rpc, dos, connector); hasSend = true; } return hasSend; }