Qt-Qt使用QWebsocket实现服务端和客户端通信

 

相关资料：

https://blog.csdn.net/qq_40110291/article/details/103734258      Qt websocket 服务端和客户端通信

实例代码(服务端)：

.pro

 1 QT       += core gui
 2 QT += websockets
 3 
 4 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
 5 
 6 CONFIG += c++11
 7 
 8 # The following define makes your compiler emit warnings if you use
 9 # any Qt feature that has been marked deprecated (the exact warnings
10 # depend on your compiler). Please consult the documentation of the
11 # deprecated API in order to know how to port your code away from it.
12 DEFINES += QT_DEPRECATED_WARNINGS
13 
14 # You can also make your code fail to compile if it uses deprecated APIs.
15 # In order to do so, uncomment the following line.
16 # You can also select to disable deprecated APIs only up to a certain version of Qt.
17 #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
18 
19 SOURCES += \
20     main.cpp \
21     mainwindow.cpp
22 
23 HEADERS += \
24     mainwindow.h
25 
26 FORMS += \
27     mainwindow.ui
28 
29 # Default rules for deployment.
30 qnx: target.path = /tmp/$${TARGET}/bin
31 else: unix:!android: target.path = /opt/$${TARGET}/bin
32 !isEmpty(target.path): INSTALLS += target
View Code

main.cpp

 1 #include "mainwindow.h"
 2 
 3 #include <QApplication>
 4 
 5 int main(int argc, char *argv[])
 6 {
 7     QApplication a(argc, argv);
 8     MainWindow w;
 9     w.show();
10     return a.exec();
11 }
View Code

mainwindow.h

 1 #ifndef MAINWINDOW_H
 2 #define MAINWINDOW_H
 3 
 4 #include <QMainWindow>
 5 
 6 #include <QWebSocketServer>
 7 #include <QWebSocket>
 8 
 9 QT_BEGIN_NAMESPACE
10 namespace Ui { class MainWindow; }
11 QT_END_NAMESPACE
12 
13 class MainWindow : public QMainWindow
14 {
15     Q_OBJECT
16 
17 public:
18     MainWindow(QWidget *parent = nullptr);
19     ~MainWindow();
20 
21 public slots:
22     void onStartButtonClick();
23     void onStopButtonClick();
24     void onSendButtonClick();
25     void onCleanButtonClick();
26 
27 Q_SIGNALS:
28     void closed();
29     private Q_SLOTS:
30     void onNewConnection();
31     void processTextMessage(QString message);
32     void socketDisconnected();
33 
34 private:
35     Ui::MainWindow *ui;
36 
37     QWebSocketServer *m_WebSocketServer;
38     QList<QWebSocket *> m_clients;
39     bool m_debug;
40     QWebSocket *pSocket;
41     QDateTime *current_date_time;
42 
43 };
44 #endif // MAINWINDOW_H
View Code

mainwindow.cpp

 1 #include "mainwindow.h"
 2 #include "ui_mainwindow.h"
 3 
 4 MainWindow::MainWindow(QWidget *parent)
 5     : QMainWindow(parent)
 6     , ui(new Ui::MainWindow)
 7 {
 8     ui->setupUi(this);
 9 
10     m_WebSocketServer = new QWebSocketServer("server", QWebSocketServer::NonSecureMode);
11     connect(m_WebSocketServer, SIGNAL(newConnection()), this, SLOT(onNewConnection()));
12     connect(ui->startButton, SIGNAL(clicked(bool)), this, SLOT(onStartButtonClick()));
13     connect(ui->stopButton, SIGNAL(clicked(bool)), this, SLOT(onStopButtonClick()));
14     connect(ui->cleanButton, SIGNAL(clicked(bool)), this, SLOT(onCleanButtonClick()));
15     connect(ui->sendButton, SIGNAL(clicked(bool)), this, SLOT(onSendButtonClick()));
16 
17 }
18 
19 MainWindow::~MainWindow()
20 {
21     delete ui;
22 }
23 
24 void MainWindow::onStartButtonClick()
25 {
26     int i_port = ui->monitorSpinBox->text().toInt();
27     m_WebSocketServer->listen(QHostAddress::Any, i_port);
28     ui->startButton->setEnabled(false);
29     ui->stopButton->setEnabled(true);
30 }
31 
32 void MainWindow::onStopButtonClick()
33 {
34     ui->startButton->setEnabled(true);
35     ui->stopButton->setEnabled(false);
36     m_WebSocketServer->close();
37 }
38 
39 void MainWindow::onSendButtonClick()
40 {
41     QString msg = ui->sendTextedit->document()->toPlainText();
42     for (int i=0;i<m_clients.size();i++)
43     {
44         m_clients.at(i)->sendTextMessage(msg);
45     }
46 }
47 
48 void MainWindow::onCleanButtonClick()
49 {
50     ui->receiveTextEdit->clear();
51 }
52 
53 void MainWindow::onNewConnection()
54 {
55     ui->startButton->setEnabled(false);
56     ui->stopButton->setEnabled(true);
57     ui->sendTextedit->setEnabled(true);
58     ui->sendButton->setEnabled(true);
59     ui->cleanButton->setEnabled(true);
60 
61     pSocket = m_WebSocketServer->nextPendingConnection();
62 
63     connect(pSocket, SIGNAL(textMessageReceived(QString)), this, SLOT(processTextMessage(QString)));
64     connect(pSocket, SIGNAL(disconnected()), this, SLOT(socketDisconnected()));
65 
66     QString item = pSocket->peerAddress().toString();
67     ui->linkclientListWidget->addItem(item);
68     m_clients << pSocket;
69 }
70 
71 void MainWindow::processTextMessage(QString message)
72 {
73     QString time = current_date_time->currentDateTime().toString("yyyy.MM.dd hh:mm:ss.zzz ddd");
74     QString item = pSocket->peerAddress().toString();
75     ui->receiveTextEdit->append(time + "" + item + "\n" + message);
76 }
77 
78 void MainWindow::socketDisconnected()
79 {
80     ui->startButton->setEnabled(true);
81     ui->stopButton->setEnabled(false);
82     ui->sendButton->setEnabled(false);
83     ui->sendTextedit->setEnabled(false);
84     ui->receiveTextEdit->setEnabled(false);
85     ui->cleanButton->setEnabled(false);
86 }
View Code

mainwindow.ui

  1 <?xml version="1.0" encoding="UTF-8"?>
  2 <ui version="4.0">
  3  <class>MainWindow</class>
  4  <widget class="QMainWindow" name="MainWindow">
  5   <property name="geometry">
  6    <rect>
  7     <x>0</x>
  8     <y>0</y>
  9     <width>800</width>
 10     <height>600</height>
 11    </rect>
 12   </property>
 13   <property name="windowTitle">
 14    <string>MainWindow</string>
 15   </property>
 16   <widget class="QWidget" name="centralwidget">
 17    <widget class="QLabel" name="label">
 18     <property name="geometry">
 19      <rect>
 20       <x>30</x>
 21       <y>40</y>
 22       <width>54</width>
 23       <height>12</height>
 24      </rect>
 25     </property>
 26     <property name="text">
 27      <string>TextLabel</string>
 28     </property>
 29    </widget>
 30    <widget class="QSpinBox" name="monitorSpinBox">
 31     <property name="geometry">
 32      <rect>
 33       <x>100</x>
 34       <y>30</y>
 35       <width>101</width>
 36       <height>22</height>
 37      </rect>
 38     </property>
 39     <property name="maximum">
 40      <number>50000</number>
 41     </property>
 42    </widget>
 43    <widget class="QPushButton" name="startButton">
 44     <property name="geometry">
 45      <rect>
 46       <x>220</x>
 47       <y>30</y>
 48       <width>80</width>
 49       <height>20</height>
 50      </rect>
 51     </property>
 52     <property name="text">
 53      <string>启动</string>
 54     </property>
 55    </widget>
 56    <widget class="QPushButton" name="stopButton">
 57     <property name="geometry">
 58      <rect>
 59       <x>320</x>
 60       <y>30</y>
 61       <width>80</width>
 62       <height>20</height>
 63      </rect>
 64     </property>
 65     <property name="text">
 66      <string>停止</string>
 67     </property>
 68    </widget>
 69    <widget class="QTextEdit" name="sendTextedit">
 70     <property name="geometry">
 71      <rect>
 72       <x>30</x>
 73       <y>80</y>
 74       <width>361</width>
 75       <height>70</height>
 76      </rect>
 77     </property>
 78    </widget>
 79    <widget class="QPushButton" name="sendButton">
 80     <property name="geometry">
 81      <rect>
 82       <x>410</x>
 83       <y>80</y>
 84       <width>80</width>
 85       <height>20</height>
 86      </rect>
 87     </property>
 88     <property name="text">
 89      <string>发送</string>
 90     </property>
 91    </widget>
 92    <widget class="QTextEdit" name="receiveTextEdit">
 93     <property name="geometry">
 94      <rect>
 95       <x>30</x>
 96       <y>220</y>
 97       <width>351</width>
 98       <height>211</height>
 99      </rect>
100     </property>
101    </widget>
102    <widget class="QLabel" name="label_2">
103     <property name="geometry">
104      <rect>
105       <x>30</x>
106       <y>200</y>
107       <width>54</width>
108       <height>12</height>
109      </rect>
110     </property>
111     <property name="text">
112      <string>TextLabel</string>
113     </property>
114    </widget>
115    <widget class="QLabel" name="label_3">
116     <property name="geometry">
117      <rect>
118       <x>390</x>
119       <y>200</y>
120       <width>54</width>
121       <height>12</height>
122      </rect>
123     </property>
124     <property name="text">
125      <string>TextLabel</string>
126     </property>
127    </widget>
128    <widget class="QPushButton" name="cleanButton">
129     <property name="geometry">
130      <rect>
131       <x>630</x>
132       <y>190</y>
133       <width>80</width>
134       <height>20</height>
135      </rect>
136     </property>
137     <property name="text">
138      <string>清除</string>
139     </property>
140    </widget>
141    <widget class="QListWidget" name="linkclientListWidget">
142     <property name="geometry">
143      <rect>
144       <x>410</x>
145       <y>230</y>
146       <width>256</width>
147       <height>192</height>
148      </rect>
149     </property>
150    </widget>
151   </widget>
152   <widget class="QMenuBar" name="menubar">
153    <property name="geometry">
154     <rect>
155      <x>0</x>
156      <y>0</y>
157      <width>800</width>
158      <height>22</height>
159     </rect>
160    </property>
161   </widget>
162   <widget class="QStatusBar" name="statusbar"/>
163  </widget>
164  <resources/>
165  <connections/>
166 </ui>
View Code

客户端：

 .pro

 1 QT       += core gui
 2 QT += websockets
 3 
 4 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
 5 
 6 CONFIG += c++11
 7 
 8 # The following define makes your compiler emit warnings if you use
 9 # any Qt feature that has been marked deprecated (the exact warnings
10 # depend on your compiler). Please consult the documentation of the
11 # deprecated API in order to know how to port your code away from it.
12 DEFINES += QT_DEPRECATED_WARNINGS
13 
14 # You can also make your code fail to compile if it uses deprecated APIs.
15 # In order to do so, uncomment the following line.
16 # You can also select to disable deprecated APIs only up to a certain version of Qt.
17 #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
18 
19 SOURCES += \
20     main.cpp \
21     mainwindow.cpp
22 
23 HEADERS += \
24     mainwindow.h
25 
26 FORMS += \
27     mainwindow.ui
28 
29 # Default rules for deployment.
30 qnx: target.path = /tmp/$${TARGET}/bin
31 else: unix:!android: target.path = /opt/$${TARGET}/bin
32 !isEmpty(target.path): INSTALLS += target
View Code

 main.cpp

 1 #include "mainwindow.h"
 2 
 3 #include <QApplication>
 4 
 5 int main(int argc, char *argv[])
 6 {
 7     QApplication a(argc, argv);
 8     MainWindow w;
 9     w.show();
10     return a.exec();
11 }
View Code

 mainwindow.h

 1 #ifndef MAINWINDOW_H
 2 #define MAINWINDOW_H
 3 
 4 #include <QMainWindow>
 5 
 6 #include <QWebSocket>
 7 
 8 QT_BEGIN_NAMESPACE
 9 namespace Ui { class MainWindow; }
10 QT_END_NAMESPACE
11 
12 class MainWindow : public QMainWindow
13 {
14     Q_OBJECT
15 
16 public:
17     MainWindow(QWidget *parent = nullptr);
18     ~MainWindow();
19 
20 Q_SIGNALS:
21     void closed();
22 
23     private Q_SLOTS:
24     void connectToServer();
25     void onTextMessageReceived(const QString &message);
26     void closeConnection();
27 
28     public slots:
29     void stopClicked();
30     void onconnected();
31     void onSendButtonClicked();
32     void onCleanButtonClicked();
33 private:
34     Ui::MainWindow *ui;
35 
36     QUrl m_url;
37     QWebSocket m_websocket;
38     bool m_debug;
39     QDateTime *current_date_time;
40 };
41 #endif // MAINWINDOW_H
View Code

 mainwindow.cpp

 1 #include "mainwindow.h"
 2 #include "ui_mainwindow.h"
 3 
 4 MainWindow::MainWindow(QWidget *parent)
 5     : QMainWindow(parent)
 6     , ui(new Ui::MainWindow)
 7 {
 8     ui->setupUi(this);
 9     connect(ui->linkbutton, SIGNAL(clicked(bool)), this, SLOT(connectToServer()));
10         connect(ui->disconnectbutton, SIGNAL(clicked(bool)), this, SLOT(stopClicked()));
11         connect(ui->sendbutton, SIGNAL(clicked(bool)), this, SLOT(onSendButtonClicked()));
12         connect(ui->cleanButton, SIGNAL(clicked(bool)), this, SLOT(onCleanButtonClicked()));
13         connect(&m_websocket, SIGNAL(connected()), this, SLOT(onconnected()));
14         connect(&m_websocket, SIGNAL(disconnected()), this, SLOT(closeConnection()));
15         connect(&m_websocket, SIGNAL(textMessageReceived(QString)), this, SLOT(onTextMessageReceived(QString)));
16 
17 }
18 
19 MainWindow::~MainWindow()
20 {
21     delete ui;
22     m_websocket.errorString();
23     m_websocket.close();
24 }
25 
26 void MainWindow::connectToServer()
27 {
28     QString path = QString("ws://%1:%2").arg(ui->iplineedit->text()).arg(ui->portspinbox->text());
29     QUrl url = QUrl(path);
30     m_websocket.open(url);
31 }
32 
33 void MainWindow::onTextMessageReceived(const QString &message)
34 {
35     QString time = current_date_time->currentDateTime().toString("yyyy.MM.dd hh:mm:ss.zzz ddd");
36     ui->receivemessageTextEdit->append(time + "\n" + message);
37 }
38 
39 void MainWindow::closeConnection()
40 {
41     ui->linkbutton->setEnabled(true);
42     ui->disconnectbutton->setEnabled(false);
43     ui->sendmessagetextedit->setEnabled(false);
44     ui->sendbutton->setEnabled(false);
45     ui->receivemessageTextEdit->setEnabled(false);
46     ui->cleanButton->setEnabled(false);
47     //    ui->statusLabel->setText(tr("disconnected"));
48 }
49 
50 void MainWindow::stopClicked()
51 {
52     m_websocket.close();
53 }
54 
55 void MainWindow::onconnected()
56 {
57     qDebug() << "hello word!";
58 //    ui->statusLabel->setText(tr("connected"));
59     ui->linkbutton->setEnabled(false);
60     ui->disconnectbutton->setEnabled(true);
61     ui->sendmessagetextedit->setEnabled(true);
62     ui->sendbutton->setEnabled(true);
63     ui->receivemessageTextEdit->setEnabled(true);
64     ui->cleanButton->setEnabled(true);
65 }
66 
67 void MainWindow::onSendButtonClicked()
68 {
69     QString msg = ui->sendmessagetextedit->document()->toPlainText();
70     m_websocket.sendTextMessage(msg);
71 }
72 
73 void MainWindow::onCleanButtonClicked()
74 {
75     ui->receivemessageTextEdit->clear();
76 }
View Code

  mainwindow.ui

  1 <?xml version="1.0" encoding="UTF-8"?>
  2 <ui version="4.0">
  3  <class>MainWindow</class>
  4  <widget class="QMainWindow" name="MainWindow">
  5   <property name="geometry">
  6    <rect>
  7     <x>0</x>
  8     <y>0</y>
  9     <width>561</width>
 10     <height>406</height>
 11    </rect>
 12   </property>
 13   <property name="windowTitle">
 14    <string>MainWindow</string>
 15   </property>
 16   <widget class="QWidget" name="centralwidget">
 17    <widget class="QPushButton" name="linkbutton">
 18     <property name="geometry">
 19      <rect>
 20       <x>330</x>
 21       <y>20</y>
 22       <width>80</width>
 23       <height>20</height>
 24      </rect>
 25     </property>
 26     <property name="text">
 27      <string>连接</string>
 28     </property>
 29    </widget>
 30    <widget class="QLabel" name="label">
 31     <property name="geometry">
 32      <rect>
 33       <x>30</x>
 34       <y>20</y>
 35       <width>54</width>
 36       <height>12</height>
 37      </rect>
 38     </property>
 39     <property name="text">
 40      <string>TextLabel</string>
 41     </property>
 42    </widget>
 43    <widget class="QLineEdit" name="iplineedit">
 44     <property name="geometry">
 45      <rect>
 46       <x>100</x>
 47       <y>20</y>
 48       <width>113</width>
 49       <height>20</height>
 50      </rect>
 51     </property>
 52    </widget>
 53    <widget class="QSpinBox" name="portspinbox">
 54     <property name="geometry">
 55      <rect>
 56       <x>230</x>
 57       <y>20</y>
 58       <width>81</width>
 59       <height>22</height>
 60      </rect>
 61     </property>
 62     <property name="maximum">
 63      <number>50000</number>
 64     </property>
 65    </widget>
 66    <widget class="QPushButton" name="disconnectbutton">
 67     <property name="geometry">
 68      <rect>
 69       <x>430</x>
 70       <y>20</y>
 71       <width>80</width>
 72       <height>20</height>
 73      </rect>
 74     </property>
 75     <property name="text">
 76      <string>断开</string>
 77     </property>
 78    </widget>
 79    <widget class="QLabel" name="label_2">
 80     <property name="geometry">
 81      <rect>
 82       <x>30</x>
 83       <y>80</y>
 84       <width>54</width>
 85       <height>12</height>
 86      </rect>
 87     </property>
 88     <property name="text">
 89      <string>TextLabel</string>
 90     </property>
 91    </widget>
 92    <widget class="QTextEdit" name="sendmessagetextedit">
 93     <property name="geometry">
 94      <rect>
 95       <x>30</x>
 96       <y>110</y>
 97       <width>281</width>
 98       <height>70</height>
 99      </rect>
100     </property>
101    </widget>
102    <widget class="QPushButton" name="sendbutton">
103     <property name="geometry">
104      <rect>
105       <x>330</x>
106       <y>110</y>
107       <width>80</width>
108       <height>20</height>
109      </rect>
110     </property>
111     <property name="text">
112      <string>发送</string>
113     </property>
114    </widget>
115    <widget class="QLabel" name="label_3">
116     <property name="geometry">
117      <rect>
118       <x>30</x>
119       <y>210</y>
120       <width>54</width>
121       <height>12</height>
122      </rect>
123     </property>
124     <property name="text">
125      <string>TextLabel</string>
126     </property>
127    </widget>
128    <widget class="QTextEdit" name="receivemessageTextEdit">
129     <property name="geometry">
130      <rect>
131       <x>30</x>
132       <y>240</y>
133       <width>281</width>
134       <height>101</height>
135      </rect>
136     </property>
137    </widget>
138    <widget class="QPushButton" name="cleanButton">
139     <property name="geometry">
140      <rect>
141       <x>330</x>
142       <y>240</y>
143       <width>80</width>
144       <height>20</height>
145      </rect>
146     </property>
147     <property name="text">
148      <string>清除</string>
149     </property>
150    </widget>
151   </widget>
152   <widget class="QMenuBar" name="menubar">
153    <property name="geometry">
154     <rect>
155      <x>0</x>
156      <y>0</y>
157      <width>561</width>
158      <height>22</height>
159     </rect>
160    </property>
161   </widget>
162   <widget class="QStatusBar" name="statusbar"/>
163  </widget>
164  <resources/>
165  <connections/>
166 </ui>
View Code

 

posted on 2022-03-02 02:19  疯狂delphi  阅读(1108)  评论(0)  编辑  收藏  举报

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