我正在尝试使用QTcpSocket和QTcpServer制作客户端和服务器。
那么,服务器会发生什么。
- 我运行服务器,它开始收听(成功[我自己检查])
- 我运行客户端,输入
127.0.0.1
forIP address
和30000
forport
- 客户说连接已建立
- 服务器不做任何事情,继续等待
我的程序的一部分:
//server-work.h
#ifndef SERVERWORK_H
#define SERVERWORK_H
#include <QtCore>
#include <QSqlError>
#include <QDebug>
#include <QSqlQuery>
#include <unistd.h>
#include <QtNetwork/QTcpServer>
#include <QtNetwork/QTcpSocket>
#include <QtSql/QSqlDatabase>
#include "lssclient.h"
class LSSClient;
class LTcpServer : public QTcpServer
{
Q_OBJECT
public:
class LTWorkWithClients : public QThread
{
//Q_OBJECT
public:
LTcpServer* server;
LTWorkWithClients(QObject* parent = 0, LTcpServer *server = 0):
QThread(parent)
{
this->server = server;
}
protected:
void run() {
qDebug() << "started";
server->workWithIncomingConnection();
}
};
QSqlDatabase db; // clients in database
LTWorkWithClients* t_workWithClients;
QQueue<quintptr> clientsToBeAttached;
QList<LSSClient*> clients;
LResult workWithIncomingConnection ();
LResult serverInit ();
LResult createDatabase ();
static QTextStream& qStdout ();
void incomingConnection(qintptr socketDescriptor) Q_DECL_OVERRIDE;
protected:
private:
};
#endif // SERVERWORK_H
我知道这个嵌套线程类是非常错误的方式来做这件事,但我没有太多时间来正确地做这件事
// server-work.cpp [PART]
LResult LTcpServer::serverInit()
{
checkError;
db = QSqlDatabase::addDatabase("QSQLITE");
db.setDatabaseName("serverDB");
if (!db.open()) {
qDebug() << "Error opening database...";
qDebug() << db.lastError().text();
return LVError;
} else {
qDebug() << "Database successfully opened";
}
if(!this->listen(QHostAddress::Any, 30000)){
qDebug() << "Error starting listening...";
return LVError;
} else {
qDebug() << "Start listening successfully";
}
t_workWithClients = new LTWorkWithClients(this, this);
t_workWithClients->start();
return LVSuccess;
}
void LTcpServer::incomingConnection(qintptr socketDescriptor)
{
qDebug() << Q_FUNC_INFO << " new connection";
clientsToBeAttached.enqueue(socketDescriptor);
qDebug() << "here1";
}
LResult LTcpServer::workWithIncomingConnection()
{
bool toExit = false;
while (!toExit) {
checkError;
qDebug() << "1";
if (clientsToBeAttached.length() != 0) {
quintptr eachClientDescriptor = clientsToBeAttached.dequeue();
qDebug() << "2";
LSSClient* client = new LSSClient(this);
client->server = this;
client->socket->setSocketDescriptor(eachClientDescriptor);
qDebug() << "3";
client->registered = false;
client->server = this;
qDebug() << client->socket->localAddress();
connect(client->socket, SIGNAL(readyRead()), client, SLOT(onSokReadyRead()));
connect(client->socket, SIGNAL(connected()), client, SLOT(onSokConnected()));
connect(client->socket, SIGNAL(disconnected()), client, SLOT(onSokDisconnected()));
connect(client->socket, SIGNAL(error(QAbstractSocket::SocketError)),client, SLOT(onSokDisplayError(QAbstractSocket::SocketError)));
clients.append(client);
}
usleep(1000000);
}
return LVSuccess;
}
因此,服务器每秒只写 1(仅此而已),但客户端说它已连接到服务器。