QT Websocket实现服务器客户端通信（客户端部分）

一 界面

客户端

服务端

二 源码
1.客户端部分
Clientdialog.cc

#include 
#include 
#include 
#include 
#include 
#include 
#include 

ClientDialog::ClientDialog(const QUrl &url,bool debug,QWidget *parent)
    : QWidget(parent),m_url(url),m_debug(debug)
{
    //layout1
    QLabel *iplabel = new QLabel("IP地址");
    m_iplineedit =new QLineEdit;
    QLabel *portlabel =new QLabel("端口");
    m_portspinbox = new QSpinBox;
    m_portspinbox->setRange(0,65535);
    m_linkbutton = new QPushButton("连接");
    m_disconnectbutton = new QPushButton("断开");
    pButtonGroup = new QButtonGroup();
    pButtonGroup->setExclusive(true);
    m_linkbutton->setCheckable(true);
    m_disconnectbutton->setCheckable(true);
    pButtonGroup->addButton(m_linkbutton,0);
    pButtonGroup->addButton(m_disconnectbutton,1);

    QHBoxLayout *qhboxlayout1 = new QHBoxLayout;
    qhboxlayout1->addWidget(iplabel);
    qhboxlayout1->addWidget(m_iplineedit);
    qhboxlayout1->addWidget(portlabel);
    qhboxlayout1->addWidget(m_portspinbox);
    qhboxlayout1->addWidget(m_linkbutton);
    qhboxlayout1->addWidget(m_disconnectbutton);

    //layout2
    QLabel *sendmessagelabel = new QLabel("发送消息");
    QHBoxLayout *qhboxlayout2 = new QHBoxLayout;
    qhboxlayout2->addWidget(sendmessagelabel);

    //layout3
    m_sendmessagetextedit = new QTextEdit;
    m_sendmessagetextedit->setFixedHeight(50);
    m_sendbutton = new QPushButton("发送");
    m_sendbutton->setFixedHeight(50);
    QHBoxLayout *qhboxlayout3 = new QHBoxLayout;
    qhboxlayout3->addWidget(m_sendmessagetextedit);
    qhboxlayout3->addWidget(m_sendbutton);

    //layout4
    QLabel *receivemessagelabel = new QLabel("接收消息");
    QHBoxLayout *qhboxlayout4 = new QHBoxLayout;
    qhboxlayout4->addWidget(receivemessagelabel);

    //layout5
    m_receivemessageTextEdit = new QTextEdit;
    QHBoxLayout *qhboxlayout5 = new QHBoxLayout;
    qhboxlayout5->addWidget(m_receivemessageTextEdit);
    m_receivemessageTextEdit->setReadOnly(true);

    //layout6
    statusLabel = new QLabel("连接状态");
    m_clean = new QPushButton("清除");
    QHBoxLayout *qhboxlayout6 = new QHBoxLayout;
    qhboxlayout6->addWidget(statusLabel);
    qhboxlayout6->addStretch();
    qhboxlayout6->addWidget(m_clean);
    //
    QVBoxLayout *mainlayout = new QVBoxLayout;
    mainlayout->addLayout(qhboxlayout1,1);
    mainlayout->addLayout(qhboxlayout2,0.5);
    mainlayout->addLayout(qhboxlayout3,1);
    mainlayout->addLayout(qhboxlayout4,0.5);
    mainlayout->addLayout(qhboxlayout5,3);
    mainlayout->addLayout(qhboxlayout6,1);
    setLayout(mainlayout);
    setWindowTitle("Websocket Client");

    connect(m_linkbutton,SIGNAL(clicked(bool)),this,SLOT(connectToServer()));
    connect(m_disconnectbutton,SIGNAL(clicked(bool)),this,SLOT(stopClicked()));
    connect(m_sendbutton,SIGNAL(clicked(bool)),this,SLOT(onSendButtonClicked()));
    connect(m_clean,SIGNAL(clicked(bool)),this,SLOT(onCleanButtonClicked()));
    connect(&m_websocket,SIGNAL(connected()),this,SLOT(onconnected()));
    connect(&m_websocket,SIGNAL(disconnected()),this,SLOT(closeConnection()));
    connect(&m_websocket,SIGNAL(textMessageReceived(QString)),this,SLOT(onTextMessageReceived(QString)));
}

ClientDialog::~ClientDialog()
{
    m_websocket.errorString();
    m_websocket.close();
}
//断开连接操作
void ClientDialog::closeConnection(){
    m_linkbutton->setEnabled(true);
    m_disconnectbutton->setEnabled(false);
    m_sendmessagetextedit->setEnabled(false);
    m_sendbutton->setEnabled(false);
    m_receivemessageTextEdit->setEnabled(false);
    m_clean->setEnabled(false);
    statusLabel->setText(tr("disconnected"));
}
//连接服务器
void ClientDialog::connectToServer()
{
    QString path = QString("ws://%1:%2").arg(m_iplineedit->text()).arg(m_portspinbox->text());
    QUrl url = QUrl(path);
    m_websocket.open(url);
}
//连接上之后
void ClientDialog::onconnected(){
    qDebug() << "hello word!";
    statusLabel->setText(tr("connected"));
    m_linkbutton->setEnabled(false);
    m_disconnectbutton->setEnabled(true);
    m_sendmessagetextedit->setEnabled(true);
    m_sendbutton->setEnabled(true);
    m_receivemessageTextEdit->setEnabled(true);
    m_clean->setEnabled(true);
}
//收到消息
void ClientDialog::onTextMessageReceived(const QString &message)
{
    QString time = current_date_time->currentDateTime().toString("yyyy.MM.dd hh:mm:ss.zzz ddd");
    m_receivemessageTextEdit->setText(time + "\n" + message);
}
//断开
void ClientDialog::stopClicked()
{
    m_websocket.close();
}
//发送消息
void ClientDialog::onSendButtonClicked()
{
    QString msg= m_sendmessagetextedit->document()->toPlainText();
    m_websocket.sendTextMessage(msg);
}
//清除内容
void ClientDialog::onCleanButtonClicked()
{
    m_receivemessageTextEdit->clear();
}

main.cc

#include "Clientdialog.hpp"
#include 
#include 
#include 
#include 

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    QDir::setCurrent(QApplication::applicationDirPath());
    QTextCodec::setCodecForCStrings(QTextCodec::codecForName("UTF-8"));//set QString codec
    QUrl url;
    ClientDialog w(url);
    w.show();
    return a.exec();
}

Clientdialog.hpp

#ifndef CLIENTDIALOG_HPP
#define CLIENTDIALOG_HPP
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include "qwebsocket.hpp"
#include 
#include 

class ClientDialog : public QWidget
{
    Q_OBJECT

public:
    explicit ClientDialog(const QUrl &url,bool debug = false, QWidget *parent=0);
    ~ClientDialog();

Q_SIGNALS:
void closed();

private Q_SLOTS:
 void connectToServer();
 void onTextMessageReceived(const QString &message);
 void closeConnection();

public slots:
    void stopClicked();
    void onconnected();
    void onSendButtonClicked();
    void onCleanButtonClicked();

private:
     QLineEdit *m_iplineedit;
     QSpinBox *m_portspinbox;
     QPushButton *m_linkbutton;
     QPushButton *m_disconnectbutton;
     QTextEdit *m_sendmessagetextedit;
     QPushButton *m_sendbutton;
     QTextEdit *m_receivemessageTextEdit;
     QPushButton *m_clean;
     QLabel *statusLabel;
     QButtonGroup *pButtonGroup;
     QUrl m_url;
     QWebSocket m_websocket;
     bool m_debug;
     QDateTime *current_date_time;
};
#endif // CLIENTDIALOG_HPP

由于本人用的是QT4.5.0版本没有QWebsocket类，所以所需类是自己下载添加的，需要在
pro文件里添加源文件路径。本人
Client.pro

#-------------------------------------------------
#
# Project created by QtCreator 2018-05-10T16:24:00
#
#-------------------------------------------------

QT       += core gui network

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = Client
TEMPLATE = app

# The following define makes your compiler emit warnings if you use
# any feature of Qt which has been marked as deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS QT_VERSION_LESS_FIVE

INCLUDEPATH += $$PWD/../QtWebsocket

# You can also make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0


SOURCES += \
        main.cc \
        Clientdialog.cc

HEADERS += \
        Clientdialog.hpp


DESTDIR = $$PWD/../Bin

LIBS +=-L$$DESTDIR -lQtWebsocket

各文件及目录如下：

源文件目录

程序及库目录

QWebsocket类文件目录