QtTcpService与QtTcpClient

相关资料：

https://www.cnblogs.com/ybqjymy/p/13683899.html

https://download.csdn.net/download/zhujianqiangqq/20429592    代码包下载

 

服务端实例：

QtTcpService.pro

 1 QT       += core gui
 2 QT += network
 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     Server.cpp \
21     TcpClientSocket.cpp \
22     Tcpserver.cpp \
23     main.cpp
24 
25 HEADERS += \
26     Server.h \
27     TcpClientSocket.h \
28     Tcpserver.h
29 
30 FORMS += \
31     tcpserver.ui
32 
33 # Default rules for deployment.
34 qnx: target.path = /tmp/$${TARGET}/bin
35 else: unix:!android: target.path = /opt/$${TARGET}/bin
36 !isEmpty(target.path): INSTALLS += target
View Code

main.cpp

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

Tcpserver.h

 1 #ifndef TCPSERVER_H
 2 #define TCPSERVER_H
 3 
 4 #include <QWidget>
 5 #include "Server.h"
 6 
 7 namespace Ui {
 8 class TcpServer;
 9 }
10 
11 class TcpServer : public QWidget
12 {
13     Q_OBJECT
14 
15 public:
16     explicit TcpServer(QWidget *parent = 0);
17     ~TcpServer();
18 
19 private slots:
20     void on_CreateChattingRoom_clicked();
21     void slotupdateserver(QString, int);//接收到server发过来的信号就更新界面的信息
22 private:
23     Ui::TcpServer *ui;
24     int port;
25     Server *server;
26 };
27 
28 #endif // TCPSERVER_H
View Code

Tcpserver.cpp

 1 #include "Tcpserver.h"
 2 #include "ui_tcpserver.h"
 3 
 4 TcpServer::TcpServer(QWidget *parent) :
 5     QWidget(parent),
 6     ui(new Ui::TcpServer)
 7 {
 8     ui->setupUi(this);
 9     port = 8888;
10 }
11 
12 TcpServer::~TcpServer()
13 {
14     delete ui;
15 }
16 
17 void TcpServer::slotupdateserver(QString msg, int length)
18 {
19     ui->textEdit->append(msg);
20 }
21 
22 void TcpServer::on_CreateChattingRoom_clicked()
23 {
24     server  = new Server(this, port);
25     connect(server, &Server::updateserver, this, &TcpServer::slotupdateserver);
26     ui->CreateChattingRoom->setEnabled(false);
27 }
View Code

Server.h

 1 #ifndef SERVER_H
 2 #define SERVER_H
 3 
 4 
 5 #include <QTcpServer>
 6 #include <QObject>
 7 #include <QList>
 8 #include "TcpClientSocket.h"
 9 
10 class Server : public QTcpServer
11 {
12     Q_OBJECT //为了实现信号和槽的通信
13 public:
14     Server(QObject *parent = 0, int port = 0);
15     QList<TcpClientSocket*> tcpclientsocketlist;
16 protected:
17     void incomingConnection(qintptr socketDescriptor);//只要出现一个新的连接，就会自动调用这个函数
18 protected slots:
19     void sliotupdateserver(QString, int);//用来处理tcpclient发过来的信号
20     void slotclientdisconnect(int);
21 
22 signals:
23     void updateserver(QString, int);//发送信号给界面，让界面更新信息
24 };
25 
26 
27 #endif // SERVER_H
View Code

Server.cpp

 1 #include "Server.h"
 2 #include <QHostAddress>
 3 
 4 Server::Server(QObject *parent, int port):QTcpServer(parent)
 5 {
 6     listen(QHostAddress::Any, port); //监听
 7 }
 8 
 9 void Server::incomingConnection(qintptr socketDescriptor)
10 {
11     TcpClientSocket *tcpclientsocket = new TcpClientSocket(this);//只要有新的连接就生成一个新的通信套接字
12     //将新创建的通信套接字描述符指定为参数socketdescriptor
13     tcpclientsocket->setSocketDescriptor(socketDescriptor);
14 
15     //将这个套接字加入客户端套接字列表中
16     tcpclientsocketlist.append(tcpclientsocket);
17 
18 
19     //接收到tcpclientsocket发送过来的更新界面的信号
20     connect(tcpclientsocket, &TcpClientSocket::updateserver, this, &Server::sliotupdateserver);
21     connect(tcpclientsocket, &TcpClientSocket::clientdisconnected, this, &Server::slotclientdisconnect);
22 
23 }
24 
25 void Server::sliotupdateserver(QString msg, int length)
26 {
27     //将这个信号发送给界面
28     emit updateserver(msg, length);
29 
30     //将收到的信息发送给每个客户端,从套接字列表中找到需要接收的套接字
31     for(int i = 0; i < tcpclientsocketlist.count(); i++)
32     {
33         QTcpSocket *item = tcpclientsocketlist.at(i);
34 //        if(item->write((char*)msg.toUtf8().data(), length) != length)
35 //        {
36 //            continue;
37 //        }
38         item->write(msg.toUtf8().data());
39     }
40 
41 }
42 
43 void Server::slotclientdisconnect(int descriptor)
44 {
45     for(int i = 0; i < tcpclientsocketlist.count(); i++)
46     {
47         QTcpSocket *item = tcpclientsocketlist.at(i);
48         if(item->socketDescriptor() == descriptor)
49         {
50             tcpclientsocketlist.removeAt(i);//如果有客户端断开连接， 就将列表中的套接字删除
51             return;
52         }
53     }
54     return;
55 }
View Code

TcpClientSocket.h

 1 #ifndef TCPCLIENTSOCKET_H
 2 #define TCPCLIENTSOCKET_H
 3 
 4 
 5 #include <QTcpSocket>
 6 
 7 class TcpClientSocket : public QTcpSocket
 8 {
 9     Q_OBJECT //添加这个宏是为了实现信号和槽的通信
10 public:
11     TcpClientSocket(QObject *parent = 0);
12 protected slots:
13     void receivedata();//处理readyRead信号读取数据
14     void slotclientdisconnected();//客户端断开连接触发disconnected信号，这个槽函数用来处理这个信号
15 
16 signals:
17     void updateserver(QString, int);//用来告诉tcpserver需要跟新界面的显示
18     void clientdisconnected(int); //告诉server有客户端断开连接
19 };
20 
21 #endif // TCPCLIENTSOCKET_H
View Code

TcpClientSocket.cpp

 1 #include "tcpclientsocket.h"
 2 
 3 TcpClientSocket::TcpClientSocket(QObject *parent)
 4 {
 5     //客户端发送数据过来就会触发readyRead信号
 6     connect(this, &TcpClientSocket::readyRead, this, &TcpClientSocket::receivedata);
 7     connect(this, &TcpClientSocket::disconnected, this, &TcpClientSocket::slotclientdisconnected);
 8 }
 9 
10 void TcpClientSocket::receivedata()
11 {
12 //    while(bytesAvailable() > 0)
13 //    {
14 //        int length = bytesAvailable();
15 //        char buf[1024]; //用来存放获取的数据
16 //        read(buf, length);
17 //        QString msg = buf;
18 //        //发信号给界面，让界面显示登录者的信息
19 //        emit updateserver(msg, length);
20 //    }
21     int length = 10;
22     QByteArray array = readAll();
23     QString msg = array;
24     emit updateserver(msg, length);
25 }
26 
27 void TcpClientSocket::slotclientdisconnected()
28 {
29     emit clientdisconnected(this->socketDescriptor());
30 }
View Code

tcpserver.ui

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <ui version="4.0">
 3  <class>TcpServer</class>
 4  <widget class="TcpServer" name="TcpServer">
 5   <property name="geometry">
 6    <rect>
 7     <x>0</x>
 8     <y>0</y>
 9     <width>309</width>
10     <height>334</height>
11    </rect>
12   </property>
13   <property name="windowTitle">
14    <string>TcpServer</string>
15   </property>
16   <widget class="QLabel" name="label">
17    <property name="geometry">
18     <rect>
19      <x>10</x>
20      <y>260</y>
21      <width>271</width>
22      <height>16</height>
23     </rect>
24    </property>
25    <property name="text">
26     <string>端口：8888</string>
27    </property>
28   </widget>
29   <widget class="QTextEdit" name="textEdit">
30    <property name="geometry">
31     <rect>
32      <x>10</x>
33      <y>20</y>
34      <width>281</width>
35      <height>231</height>
36     </rect>
37    </property>
38   </widget>
39   <widget class="QPushButton" name="CreateChattingRoom">
40    <property name="geometry">
41     <rect>
42      <x>10</x>
43      <y>280</y>
44      <width>271</width>
45      <height>23</height>
46     </rect>
47    </property>
48    <property name="text">
49     <string>创建聊天室</string>
50    </property>
51   </widget>
52  </widget>
53  <customwidgets>
54   <customwidget>
55    <class>TcpServer</class>
56    <extends>QWidget</extends>
57    <header>tcpserver.h</header>
58    <container>1</container>
59   </customwidget>
60  </customwidgets>
61  <resources/>
62  <connections/>
63 </ui>
View Code

客户端实例：

 QtTcpClient.pro

 1 QT       += core gui
 2 QT += network
 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     TcpClient.cpp \
21     main.cpp
22 
23 HEADERS += \
24     TcpClient.h
25 
26 FORMS += \
27     TcpClient.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 "TcpClient.h"
 2 
 3 #include <QApplication>
 4 
 5 int main(int argc, char *argv[])
 6 {
 7     QApplication a(argc, argv);
 8     TcpClient w;
 9     w.show();
10     return a.exec();
11 }
View Code

TcpClient.h

 1 #ifndef TCPCLIENT_H
 2 #define TCPCLIENT_H
 3 
 4 #include <QWidget>
 5 #include <QTcpSocket>
 6 
 7 namespace Ui {
 8 class TcpClient;
 9 }
10 
11 class TcpClient : public QWidget
12 {
13     Q_OBJECT
14 
15 public:
16     explicit TcpClient(QWidget *parent = 0);
17     ~TcpClient();
18 
19 private slots:
20     void on_pushButtonEnter_clicked();
21     void slotconnectedsuccess();//用来处理连接成功的信号
22     void slotreceive();//接收服务器传过来的信息
23     void on_pushButtonSend_clicked();
24     void slotdisconnected();//用来处理离开聊天室的信号
25 
26 
27 private:
28     Ui::TcpClient *ui;
29     bool status;//用来判断是否进入了聊天室
30     int port;
31     QHostAddress *serverIP;
32     QString userName;
33     QTcpSocket *tcpsocket;
34 };
35 
36 #endif // TCPCLIENT_H
View Code

TcpClient.cpp

  1 #include "TcpClient.h"
  2 #include "ui_tcpclient.h"
  3 #include <QHostAddress>
  4 #include <QMessageBox>
  5 
  6 TcpClient::TcpClient(QWidget *parent) :
  7     QWidget(parent),
  8     ui(new Ui::TcpClient)
  9 {
 10     ui->setupUi(this);
 11     //将进入聊天室的标志位置为false
 12     status = false;
 13     //端口为8888
 14     port = 8888;
 15     ui->lineEditServerPort->setText(QString::number(port));//界面中端口默认显示8888
 16 
 17     serverIP = new QHostAddress();
 18 
 19     //未进入聊天室内不能发送信息
 20     ui->pushButtonSend->setEnabled(false);
 21 }
 22 
 23 TcpClient::~TcpClient()
 24 {
 25     delete ui;
 26 }
 27 
 28 //进入聊天室
 29 void TcpClient::on_pushButtonEnter_clicked()
 30 {
 31     //首先判断这个用户是不是在聊天室中
 32     if(status == false)
 33     {
 34         //不在聊天室中就和服务器进行连接
 35         QString ip = ui->lineEditServerIp->text();//从界面获取ip地址
 36         if(!serverIP->setAddress(ip))//用这个函数判断IP地址是否可以被正确解析
 37         {
 38             //不能被正确解析就弹出一个警告窗口
 39             QMessageBox::warning(this, "错误", "IP地址不正确");
 40             return;
 41         }
 42         if(ui->lineEditUserName->text() == "")
 43         {
 44             //用户名不能为空
 45             QMessageBox::warning(this, "错误", "用户名不能为空");
 46             return;
 47         }
 48 
 49         //从界面获取用户名
 50         userName = ui->lineEditUserName->text();
 51         //创建一个通信套接字，用来和服务器进行通信
 52         tcpsocket = new QTcpSocket(this);
 53 
 54         //和服务器进行连接
 55         tcpsocket->connectToHost(*serverIP, port);
 56 
 57         //和服务器连接成功能会触发connected信号
 58         connect(tcpsocket, &QTcpSocket::connected, this, &TcpClient::slotconnectedsuccess);
 59         //接收到服务器的信息就会触发readyRead信号
 60         connect(tcpsocket, &QTcpSocket::readyRead, this, &TcpClient::slotreceive);
 61 
 62 
 63 
 64         //将进入聊天室的标志位置为true；
 65         status = true;
 66     }
 67     else//已经进入了聊天室
 68     {
 69         int length = 0;
 70         QString msg = userName + ":Leave Chat Room";
 71 //        if((length = tcpsocket->write((char*)msg.toUtf8().data(), msg.length())) != msg.length())
 72 //        {
 73 //            return;
 74 //        }
 75         tcpsocket->write(msg.toUtf8().data());
 76         tcpsocket->disconnectFromHost();
 77         status = false;
 78         //离开聊天室就会触发disconnected信号
 79         connect(tcpsocket, &QTcpSocket::disconnected, this, &TcpClient::slotdisconnected);
 80     }
 81 }
 82 
 83 //用来处理连接成功的信号
 84 void TcpClient::slotconnectedsuccess()
 85 {
 86     //进入聊天室可以发送信息了
 87     ui->pushButtonSend->setEnabled(true);
 88     //将进入聊天的按钮改为离开聊天室
 89     ui->pushButtonEnter->setText(QStringLiteral("离开聊天室"));
 90 
 91     int length = 0;
 92     //将用户名发送给服务器
 93     QString msg= userName + " :Enter Chat Room";
 94 
 95 //    if((length = tcpsocket->write((char*)msg.toUtf8().data(), msg.length())) != msg.length())
 96 //    {
 97 //        return;
 98 //    }
 99     tcpsocket->write(msg.toUtf8().data());
100 }
101 
102 
103 void TcpClient::slotreceive()
104 {
105 //    while(tcpsocket->bytesAvailable() > 0 )
106 //    {
107 //        QByteArray datagram;
108 //        datagram.resize(tcpsocket->bytesAvailable());
109 //        tcpsocket->read(datagram.data(), datagram.size());
110 //        QString msg = datagram.data();
111 //        ui->textEdit->append(msg.left(datagram.size()));
112 //    }
113     QByteArray array = tcpsocket->readAll();
114     ui->textEdit->append(array);
115 }
116 
117 void TcpClient::on_pushButtonSend_clicked()
118 {
119     if(ui->lineEditSend->text() == "")
120     {
121         return;
122     }
123     QString msg = userName + ":" + ui->lineEditSend->text();
124    // tcpsocket->write((char*)msg.toUtf8().data(), msg.length());
125     tcpsocket->write(msg.toUtf8().data());
126     ui->lineEditSend->clear();
127 }
128 
129 void TcpClient::slotdisconnected()
130 {
131     ui->pushButtonSend->setEnabled(false);
132     ui->pushButtonEnter->setText(QStringLiteral("进入聊天室"));
133 }
View Code

TcpClient.ui

  1 <?xml version="1.0" encoding="UTF-8"?>
  2 <ui version="4.0">
  3  <class>TcpClient</class>
  4  <widget class="TcpClient" name="TcpClient">
  5   <property name="geometry">
  6    <rect>
  7     <x>0</x>
  8     <y>0</y>
  9     <width>341</width>
 10     <height>463</height>
 11    </rect>
 12   </property>
 13   <property name="windowTitle">
 14    <string>TcpClient</string>
 15   </property>
 16   <widget class="QPushButton" name="pushButtonSend">
 17    <property name="geometry">
 18     <rect>
 19      <x>230</x>
 20      <y>300</y>
 21      <width>75</width>
 22      <height>23</height>
 23     </rect>
 24    </property>
 25    <property name="text">
 26     <string>发送</string>
 27    </property>
 28   </widget>
 29   <widget class="QPushButton" name="pushButtonEnter">
 30    <property name="geometry">
 31     <rect>
 32      <x>40</x>
 33      <y>430</y>
 34      <width>261</width>
 35      <height>23</height>
 36     </rect>
 37    </property>
 38    <property name="text">
 39     <string>加入或离开聊天室</string>
 40    </property>
 41   </widget>
 42   <widget class="QTextEdit" name="textEdit">
 43    <property name="geometry">
 44     <rect>
 45      <x>20</x>
 46      <y>10</y>
 47      <width>271</width>
 48      <height>281</height>
 49     </rect>
 50    </property>
 51   </widget>
 52   <widget class="QLabel" name="label">
 53    <property name="geometry">
 54     <rect>
 55      <x>40</x>
 56      <y>340</y>
 57      <width>54</width>
 58      <height>12</height>
 59     </rect>
 60    </property>
 61    <property name="text">
 62     <string>名字：</string>
 63    </property>
 64   </widget>
 65   <widget class="QLabel" name="label_2">
 66    <property name="geometry">
 67     <rect>
 68      <x>40</x>
 69      <y>370</y>
 70      <width>54</width>
 71      <height>12</height>
 72     </rect>
 73    </property>
 74    <property name="text">
 75     <string>服务地址：</string>
 76    </property>
 77   </widget>
 78   <widget class="QLabel" name="label_3">
 79    <property name="geometry">
 80     <rect>
 81      <x>40</x>
 82      <y>400</y>
 83      <width>54</width>
 84      <height>12</height>
 85     </rect>
 86    </property>
 87    <property name="text">
 88     <string>服务端口：</string>
 89    </property>
 90   </widget>
 91   <widget class="QLineEdit" name="lineEditUserName">
 92    <property name="geometry">
 93     <rect>
 94      <x>100</x>
 95      <y>340</y>
 96      <width>113</width>
 97      <height>20</height>
 98     </rect>
 99    </property>
100   </widget>
101   <widget class="QLineEdit" name="lineEditServerIp">
102    <property name="geometry">
103     <rect>
104      <x>100</x>
105      <y>370</y>
106      <width>113</width>
107      <height>20</height>
108     </rect>
109    </property>
110   </widget>
111   <widget class="QLineEdit" name="lineEditServerPort">
112    <property name="geometry">
113     <rect>
114      <x>100</x>
115      <y>400</y>
116      <width>113</width>
117      <height>20</height>
118     </rect>
119    </property>
120   </widget>
121   <widget class="QLineEdit" name="lineEditSend">
122    <property name="geometry">
123     <rect>
124      <x>20</x>
125      <y>300</y>
126      <width>201</width>
127      <height>20</height>
128     </rect>
129    </property>
130   </widget>
131  </widget>
132  <customwidgets>
133   <customwidget>
134    <class>TcpClient</class>
135    <extends>QWidget</extends>
136    <header>tcpclient.h</header>
137    <container>1</container>
138   </customwidget>
139  </customwidgets>
140  <resources/>
141  <connections/>
142 </ui>
View Code

 

posted on 2021-07-22 17:01  疯狂delphi  阅读(73)  评论(0)  编辑  收藏  举报

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