利用Qt實(shí)現(xiàn)FTP服務(wù)器并支持多客戶端登錄
更新時(shí)間：2024年12月28日 14:49:43 作者：小灰灰搞電子
這篇文章主要為大家詳細(xì)介紹了如何利用Qt實(shí)現(xiàn)FTP服務(wù)器并支持多客戶端登錄,文中的示例代碼講解詳細(xì),感興趣的小伙伴可以跟隨小編一起學(xué)習(xí)一下
一、效果展示
二、源碼實(shí)現(xiàn)
由于源碼較多，只分享其中一部分
ftpserverwidget.h
#ifndef FTPSERVERWIDGET_H
#define FTPSERVERWIDGET_H
#include <QWidget>
#include <QGridLayout>
#include <QHBoxLayout>
#include <QLabel>
#include <QLineEdit>
#include <QPushButton>
#include <QToolButton>
#include <QFileDialog>
#include <QRegularExpression>
#include <QRegularExpressionValidator>
#include <QMessageBox>
#include <QFileInfo>
#include <QHostInfo>
#include "ftpServer/ftpserver.h"
class FtpServerWidget : public QWidget
{
Q_OBJECT
Q_PROPERTY(QString ip READ get_ip WRITE set_ip)
Q_PROPERTY(QString port READ get_port WRITE set_port)
Q_PROPERTY(QString userName READ get_user_name WRITE set_user_name)
Q_PROPERTY(QString password READ get_password WRITE set_password)
Q_PROPERTY(QString path READ get_path WRITE set_path)
signals:
void para_changed();
public:
explicit FtpServerWidget(QWidget *parent = nullptr);
~FtpServerWidget();
bool set_ftp_para(QString ip,QString port,QString userName,QString password,QString path);
bool ftp_start_server();
bool ftp_stop_server();
QString get_ip();
void set_ip(QString val);
QString get_port();
void set_port(QString val);
QString get_user_name();
void set_user_name(QString val);
QString get_password();
void set_password(QString val);
QString get_path();
void set_path(QString val);
protected:
void showEvent(QShowEvent *event) override;
void closeEvent(QCloseEvent *event) override;
private:
void value_init();
void control_init();
private slots:
void btn_click_slot();
void dir_select_slot(const QString &directory);
private:
QGridLayout *gridLayout;
QHBoxLayout *horizontalLayout;
QLabel *label;
QLineEdit *lineEditIp;
QHBoxLayout *horizontalLayout_2;
QLabel *label_2;
QLineEdit *lineEditPort;
QHBoxLayout *horizontalLayout_3;
QLabel *label_3;
QLineEdit *lineEditUser;
QHBoxLayout *horizontalLayout_4;
QLabel *label_4;
QLineEdit *lineEditPassward;
QHBoxLayout *horizontalLayout_6;
QLabel *label_6;
QLineEdit *lineEditPath;
QPushButton *btnSelectPath;
QHBoxLayout *horizontalLayout_7;
QPushButton *btnCancel;
QPushButton *btnConfirm;
QFileDialog *dirSelectDlg;
QMessageBox *paraMessageBox;
QString ftpIp = nullptr;
QString ftpPort = nullptr;
QString ftpUserName = nullptr;
QString ftpPassword = nullptr;
QString ftpPath = nullptr;
FtpServer *ftpServer = nullptr;
};
#endif // FTPSERVERWIDGET_H
ftpserverwidget.cpp
#include "ftpserverwidget.h"
FtpServerWidget::FtpServerWidget(QWidget *parent)
: QWidget{parent}
{
this->value_init();
this->control_init();
}
FtpServerWidget::~FtpServerWidget()
{
this->ftp_stop_server();
}
void FtpServerWidget::value_init()
{
this->ftpIp = "127.0.0.1";
}
void FtpServerWidget::control_init()
{
this->resize(450, 330);
this->setMinimumSize(QSize(450, 330));
this->setMaximumSize(QSize(500, 380));
this->setWindowTitle(tr("FTP服務(wù)器參數(shù)設(shè)置"));
gridLayout = new QGridLayout();
gridLayout->setObjectName(QString::fromUtf8("gridLayout"));
horizontalLayout = new QHBoxLayout();
horizontalLayout->setObjectName(QString::fromUtf8("horizontalLayout"));
label = new QLabel();
label->setText(tr("服務(wù)器IP:"));
label->setObjectName(QString::fromUtf8("label"));
label->setAlignment(Qt::AlignCenter);
horizontalLayout->addWidget(label);
lineEditIp = new QLineEdit();
lineEditIp->setObjectName(QString::fromUtf8("lineEditIp"));
horizontalLayout->addWidget(lineEditIp);
horizontalLayout->setStretch(0, 1);
horizontalLayout->setStretch(1, 4);
gridLayout->addLayout(horizontalLayout, 0, 0, 1, 1);
horizontalLayout_2 = new QHBoxLayout();
horizontalLayout_2->setObjectName(QString::fromUtf8("horizontalLayout_2"));
label_2 = new QLabel();
label_2->setText(tr("服務(wù)器端口:"));
label_2->setObjectName(QString::fromUtf8("label_2"));
label_2->setAlignment(Qt::AlignCenter);
horizontalLayout_2->addWidget(label_2);
lineEditPort = new QLineEdit();
lineEditPort->setObjectName(QString::fromUtf8("lineEditPort"));
horizontalLayout_2->addWidget(lineEditPort);
horizontalLayout_2->setStretch(0, 1);
horizontalLayout_2->setStretch(1, 4);
gridLayout->addLayout(horizontalLayout_2, 1, 0, 1, 1);
horizontalLayout_3 = new QHBoxLayout();
horizontalLayout_3->setObjectName(QString::fromUtf8("horizontalLayout_3"));
label_3 = new QLabel();
label_3->setText(tr("用戶名:"));
label_3->setObjectName(QString::fromUtf8("label_3"));
label_3->setAlignment(Qt::AlignCenter);
horizontalLayout_3->addWidget(label_3);
lineEditUser = new QLineEdit();
lineEditUser->setObjectName(QString::fromUtf8("lineEditUser"));
horizontalLayout_3->addWidget(lineEditUser);
horizontalLayout_3->setStretch(0, 1);
horizontalLayout_3->setStretch(1, 4);
gridLayout->addLayout(horizontalLayout_3, 2, 0, 1, 1);
horizontalLayout_4 = new QHBoxLayout();
horizontalLayout_4->setObjectName(QString::fromUtf8("horizontalLayout_4"));
label_4 = new QLabel();
label_4->setText(tr("登錄密碼:"));
label_4->setObjectName(QString::fromUtf8("label_4"));
label_4->setAlignment(Qt::AlignCenter);
horizontalLayout_4->addWidget(label_4);
lineEditPassward = new QLineEdit();
lineEditPassward->setObjectName(QString::fromUtf8("lineEditPassward"));
horizontalLayout_4->addWidget(lineEditPassward);
horizontalLayout_4->setStretch(0, 1);
horizontalLayout_4->setStretch(1, 4);
gridLayout->addLayout(horizontalLayout_4, 3, 0, 1, 1);
horizontalLayout_6 = new QHBoxLayout();
horizontalLayout_6->setObjectName(QString::fromUtf8("horizontalLayout_6"));
label_6 = new QLabel();
label_6->setText(tr("文件路徑:"));
label_6->setObjectName(QString::fromUtf8("label_6"));
label_6->setAlignment(Qt::AlignCenter);
horizontalLayout_6->addWidget(label_6);
lineEditPath = new QLineEdit();
lineEditPath->setObjectName(QString::fromUtf8("lineEditPath"));
QSizePolicy sizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
sizePolicy.setHorizontalStretch(0);
sizePolicy.setVerticalStretch(0);
sizePolicy.setHeightForWidth(lineEditPath->sizePolicy().hasHeightForWidth());
lineEditPath->setSizePolicy(sizePolicy);
horizontalLayout_6->addWidget(lineEditPath);
btnSelectPath = new QPushButton();
btnSelectPath->setText(tr("..."));
btnSelectPath->setObjectName(QString::fromUtf8("toolBtnSelectPath"));
btnSelectPath->setMinimumSize(QSize(82, 0));
horizontalLayout_6->addWidget(btnSelectPath);
horizontalLayout_6->setStretch(0, 1);
horizontalLayout_6->setStretch(1, 3);
horizontalLayout_6->setStretch(2, 1);
gridLayout->addLayout(horizontalLayout_6, 4, 0, 1, 1);
horizontalLayout_7 = new QHBoxLayout();
horizontalLayout_7->setObjectName(QString::fromUtf8("horizontalLayout_7"));
btnCancel = new QPushButton();
btnCancel->setText(tr("取消"));
btnCancel->setObjectName(QString::fromUtf8("btnCancel"));
QSizePolicy sizePolicy1(QSizePolicy::Minimum, QSizePolicy::Fixed);
sizePolicy1.setHorizontalStretch(0);
sizePolicy1.setVerticalStretch(0);
sizePolicy1.setHeightForWidth(btnCancel->sizePolicy().hasHeightForWidth());
btnCancel->setSizePolicy(sizePolicy1);
btnCancel->setMinimumSize(QSize(0, 50));
horizontalLayout_7->addWidget(btnCancel);
btnConfirm = new QPushButton();
btnConfirm->setText(tr("確定"));
btnConfirm->setObjectName(QString::fromUtf8("btnConfirm"));
sizePolicy1.setHeightForWidth(btnConfirm->sizePolicy().hasHeightForWidth());
btnConfirm->setSizePolicy(sizePolicy1);
btnConfirm->setMinimumSize(QSize(0, 50));
horizontalLayout_7->addWidget(btnConfirm);
gridLayout->addLayout(horizontalLayout_7, 5, 0, 1, 1);
this->setLayout(gridLayout);
//限制lineedit格式輸入
QRegularExpression regIpStr("(\\d{1,2}|1\\d\\d|2[0-4]\\d|25[0-5])\\.(\\d{1,2}|1\\d\\d|2[0-4]\\d|25[0-5])\\.(\\d{1,2}|1\\d\\d|2[0-4]\\d|25[0-5])\\.(\\d{1,2}|1\\d\\d|2[0-4]\\d|25[0-5])");
QValidator * validator = new QRegularExpressionValidator(regIpStr, this->lineEditIp);
this->lineEditIp->setValidator(validator);
this->lineEditPort->setValidator(new QIntValidator(0,65535,this->lineEditPort));
QRegularExpression regUserStr("[a-zA-Z0-9]+$");
validator = new QRegularExpressionValidator(regUserStr, this->lineEditUser);
this->lineEditUser->setValidator(validator);
this->lineEditPassward->setValidator(validator);
this->lineEditUser->setMaxLength(8);
this->lineEditPassward->setMaxLength(8);
this->lineEditIp->setPlaceholderText(tr("請(qǐng)輸入服務(wù)器IP地址！"));
this->lineEditPort->setPlaceholderText(tr("請(qǐng)輸入服務(wù)器端口！"));
this->lineEditUser->setPlaceholderText(tr("請(qǐng)輸入登錄用戶名！"));
this->lineEditPassward->setPlaceholderText(tr("請(qǐng)輸入登錄密碼！"));
this->lineEditPath->setPlaceholderText(tr("請(qǐng)輸入文件路徑！"));
this->lineEditIp->setStyleSheet("border:2px groove gray;border-radius:8px;padding:2px 4px;border-style: outset;");
this->lineEditPort->setStyleSheet("border:2px groove gray;border-radius:8px;padding:2px 4px;border-style: outset;");
this->lineEditUser->setStyleSheet("border:2px groove gray;border-radius:8px;padding:2px 4px;border-style: outset;");
this->lineEditPassward->setStyleSheet("border:2px groove gray;border-radius:8px;padding:2px 4px;border-style: outset;");
this->lineEditPath->setStyleSheet("border:2px groove gray;border-radius:8px;padding:2px 4px;border-style: outset;");
this->lineEditIp->setReadOnly(true);
//路徑選擇dialog初始化
this->dirSelectDlg = new QFileDialog(this);
this->dirSelectDlg->setFileMode(QFileDialog::Directory);
this->dirSelectDlg->setWindowTitle(tr("請(qǐng)選擇一個(gè)文件夾！"));
this->dirSelectDlg->setModal(false);
this->dirSelectDlg->close();
connect(this->dirSelectDlg,&QFileDialog::fileSelected,this,&FtpServerWidget::dir_select_slot);
//錯(cuò)誤提示messagebox初始化
this->paraMessageBox = new QMessageBox(this);
this->paraMessageBox->setModal(false);
this->paraMessageBox->setWindowTitle(tr("參數(shù)錯(cuò)誤！"));
this->paraMessageBox->setIcon(QMessageBox::Warning);
this->paraMessageBox->setMinimumSize(500,100);
this->paraMessageBox->close();
connect(this->btnConfirm,&QPushButton::clicked,this,&FtpServerWidget::btn_click_slot);
connect(this->btnCancel,&QPushButton::clicked,this,&FtpServerWidget::btn_click_slot);
connect(this->btnSelectPath,&QPushButton::clicked,this,&FtpServerWidget::btn_click_slot);
}
bool FtpServerWidget::set_ftp_para(QString ip, QString port, QString userName, QString password, QString path)
{
qDebug()<<"ip:"<<ip<<" port:"<<port<<" userName:"<<userName<<" password:"<<password<<" path:"<<path;
if(ip == nullptr)
{
this->paraMessageBox->setText(tr("IP不能為空！"));
this->paraMessageBox->show();
return false;
}
if(port == nullptr)
{
this->paraMessageBox->setText(tr("端口設(shè)置不能為空！"));
this->paraMessageBox->show();
return false;
}
if(port.toUInt() >65535)
{
this->paraMessageBox->setText(tr("端口值設(shè)置錯(cuò)誤！"));
this->paraMessageBox->show();
return false;
}
if(userName == nullptr)
{
this->paraMessageBox->setText(tr("用戶名不能為空！"));
this->paraMessageBox->show();
return false;
}
if(password == nullptr)
{
this->paraMessageBox->setText(tr("用戶密碼不能為空！"));
this->paraMessageBox->show();
return false;
}
if(path == nullptr)
{
this->paraMessageBox->setText(tr("路徑不能為空！"));
this->paraMessageBox->show();
return false;
}
QFileInfo info(path);
if(!info.exists())
{
this->paraMessageBox->setText(tr("路徑不存在！"));
this->paraMessageBox->show();
return false;
}
this->ftpIp = ip;
this->ftpPort = port;
this->ftpUserName = userName;
this->ftpPassword = password;
this->ftpPath = path;
return true;
}
bool FtpServerWidget::ftp_start_server()
{
if(this->ftpIp == nullptr)
{
return false;
}
if(this->ftpPort == nullptr)
{
return false;
}
if(this->ftpPort.toUInt() >65535)
{
return false;
}
if(this->ftpUserName == nullptr)
{
return false;
}
if(this->ftpPassword == nullptr)
{
return false;
}
if(this->ftpPath == nullptr)
{
return false;
}
QFileInfo info(this->ftpPath);
if(!info.exists())
{
return false;
}
if (this->ftpServer !=nullptr)
{
qDebug() << "服務(wù)器已經(jīng)啟動(dòng)";
return true;
}
this->ftpServer = new FtpServer(this, this->ftpPath, this->ftpPort.toInt(), this->ftpUserName, this->ftpPassword);
//connect(m_server, SIGNAL(newPeerIp(QString)), this, SLOT(onNewPeerIp(QString)));
qDebug() << "服務(wù)器已啟動(dòng)";
return true;
}
bool FtpServerWidget::ftp_stop_server()
{
if(this->ftpServer != nullptr)
{
delete this->ftpServer;
this->ftpServer = NULL;
}
qDebug() << "服務(wù)器已關(guān)閉";
return true;
}
QString FtpServerWidget::get_ip()
{
return this->ftpIp;
}
void FtpServerWidget::set_ip(QString val)
{
this->ftpIp = val;
emit para_changed();
}
QString FtpServerWidget::get_port()
{
return this->ftpPort;
}
void FtpServerWidget::set_port(QString val)
{
this->ftpPort = val;
emit para_changed();
}
QString FtpServerWidget::get_user_name()
{
return this->ftpUserName;
}
void FtpServerWidget::set_user_name(QString val)
{
this->ftpUserName = val;
emit para_changed();
}
QString FtpServerWidget::get_password()
{
return this->ftpPassword;
}
void FtpServerWidget::set_password(QString val)
{
this->ftpPassword = val;
emit para_changed();
}
QString FtpServerWidget::get_path()
{
return this->ftpPath;
}
void FtpServerWidget::set_path(QString val)
{
this->ftpPath = val;
emit para_changed();
}
void FtpServerWidget::btn_click_slot()
{
QPushButton *btn = qobject_cast<QPushButton *>(sender());
if(btn == this->btnConfirm) //確定
{
QString ipStr = this->lineEditIp->text();
QString portStr = this->lineEditPort->text();
QString userStr = this->lineEditUser->text();
QString passwordStr = this->lineEditPassward->text();
QString pathStr = this->lineEditPath->text();
this->set_ftp_para(ipStr,portStr,userStr,passwordStr,pathStr);
this->ftp_start_server();
}
else if(btn == this->btnCancel) //取消
{
this->close();
}
else if(btn == this->btnSelectPath) //選擇路徑
{
this->dirSelectDlg->show();
}
}
void FtpServerWidget::dir_select_slot(const QString &directory)
{
this->lineEditPath->setText(directory);
}
void FtpServerWidget::showEvent(QShowEvent *event)
{
Q_UNUSED(event);
if(this->ftpIp != nullptr)
{
this->lineEditIp->setText(this->ftpIp);
}
if(this->ftpPort != nullptr)
{
this->lineEditPort->setText(this->ftpPort);
}
if(this->ftpUserName !=nullptr)
{
this->lineEditUser->setText(this->ftpUserName);
}
if(this->ftpPassword != nullptr)
{
this->lineEditPassward->setText(this->ftpPassword);
}
if(this->ftpPath != nullptr)
{
this->lineEditPath->setText(this->ftpPath);
}
}
void FtpServerWidget::closeEvent(QCloseEvent *event)
{
Q_UNUSED(event);
this->dirSelectDlg->close();
this->paraMessageBox->close();
}到此這篇關(guān)于利用Qt實(shí)現(xiàn)FTP服務(wù)器并支持多客戶端登錄的文章就介紹到這了,更多相關(guān)Qt FTP服務(wù)器內(nèi)容請(qǐng)搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！
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