之前只总结了透明、无边框、可移动窗口的UI处理，为了给某位同学提供些学习资料，我再总结些功能要点。

原则：少说废话，多上代码。

✿登录窗口

登录操作TcpSocket，如果你非要问我为什么不是UDP Socket ，我只能说因为tcp可靠。

❀登录

在确保设置IP端口后，通过QDataStream 写 QIODevice

void login::on_loginButton()
{usrname = ui->usrnamelineEdit->text().trimmed();password = ui->passwordlineEdit->text().trimmed();QRegExp rx("^[1-9]{1,2}[0-9]{4,7}{1}quot;);rx.setPatternSyntax(QRegExp::RegExp);if (!rx.exactMatch(usrname)){QMessageBox::warning(NULL, tr("提示"), tr("请输入QQ号."));}else{tcpSocket->abort();tcpSocket->connectToHost(QHostAddress(ip), (quint16)port.toUInt());QString msgType = "MSG_USER_LOGIN";QByteArray block;QDataStream out(&block, QIODevice::WriteOnly);out.setVersion(QDataStream::Qt_4_6);out << (quint16)0 << msgType << usrname << password;out.device()->seek(0);out << (quint16)(block.size() - sizeof(quint16));tcpSocket->write(block);}}

登录反馈

void login::on_Read()
{QByteArray block = tcpSocket->readAll();QDataStream in(&block, QIODevice::ReadOnly);     //QDataStream in(tcpSocket);quint16 dataGramSize;QString msgType;in >> dataGramSize >> msgType;if ( "MSG_ID_NOTEXIST" == msgType ){QMessageBox::warning(NULL, tr("提示"), tr("该号码不存在，请先注册."));ui->usrnamelineEdit->clear();ui->passwordlineEdit->clear();}else if ( "MSG_PWD_ERROR" == msgType ){QMessageBox::information(NULL, tr("提示"), tr("密码错误."));ui->usrnamelineEdit->clear();}else if ( "MSG_LOGIN_ALREADY" == msgType ){QMessageBox::information(NULL, tr("提示"), tr("请不要重复登录."));ui->usrnamelineEdit->clear();ui->passwordlineEdit->clear();}else if ( "MSG_LOGIN_SUCCESS" == msgType){qqpanel = new panel(usrname, ip, port);qqpanel->setWindowTitle(tr("QQcopy"));qqpanel->setWindowFlags(Qt::FramelessWindowHint);qqpanel->setAttribute(Qt::WA_TranslucentBackground);qqpanel->show();this->close();}

❀服务器端的监听

首先Tcp server

void TcpSockServer::incomingConnection(int socketDescriptor)
{TcpConThread *thread = new TcpConThread(socketDescriptor, this);connect(thread, SIGNAL(finished()), thread, SLOT(deleteLater()));thread->start();
}

窗口构造

Daemon::Daemon(QWidget *parent) :QMainWindow(parent),ui(new Ui::Daemon)
{ui->setupUi(this);this->setWindowTitle("QQ");ui->startListenButton->setText("开始监听");ui->ipLineEdit->setEnabled(true);ui->portLineEdit->setEnabled(true);ip.clear();port.clear();db = new SqliteDB;tableViewRefresh();}

数据信息的refresh

void Daemon::tableViewRefresh()
{db->connectDB();this->myModel = new MySqlQueryModel;this->myModel->setQuery(QObject::tr("select id, name, logstat from user order by logstat desc"));myModel->setHeaderData(0, Qt::Horizontal, tr("QQ号"));myModel->setHeaderData(1, Qt::Horizontal, tr("昵称"));myModel->setHeaderData(2, Qt::Horizontal, tr("状态"));ui->tableView->setModel(myModel);ui->tableView->setColumnWidth(0, 71);ui->tableView->setColumnWidth(1, 71);ui->tableView->setColumnWidth(2, 71);ui->tableView->show();db->closeDB();
}

系统广播和聊天UDP即可

void Daemon::on_send()
{QByteArray sysMsg;QDataStream tosend(&sysMsg,QIODevice::WriteOnly);tosend.setVersion(QDataStream::Qt_4_6);QString mytype="MSG_SERVER_INFO";tosend<<(quint16)0<<mytype<<ui->servTextEdit->toPlainText();tosend.device()->seek(0);tosend<<(quint16)(sysMsg.size()-sizeof(quint16));if(!udpSocket->writeDatagram(sysMsg.data(),sysMsg.size(),QHostAddress("192.168.1.255"),6666))QMessageBox::warning(NULL,"message broadcast","error");ui->servTextEdit->clear();
}