网站有哪些功能,如何制作餐馆网站,长沙市建设厅官方网站,seo需要掌握哪些技术到官网下载qssh的源码QSsh-botan-1#xff0c;使用qtcreator打开后#xff0c;直接编译#xff0c;即可得到qssh的库 头文件将QSsh-botan-1\src\libs\ssh目录下的.h文件拷到include文件夹下#xff0c;即为库头文件。
qssh有个问题#xff0c;如果你将qssh的类放在子线程…到官网下载qssh的源码QSsh-botan-1使用qtcreator打开后直接编译即可得到qssh的库 头文件将QSsh-botan-1\src\libs\ssh目录下的.h文件拷到include文件夹下即为库头文件。
qssh有个问题如果你将qssh的类放在子线程中调用将获取不到服务器发送回来的数据。故只能放在主线程调用。如有需要从子线程调用的话可通过在子线程发送信号来调用主线程的槽从而调用到qssh的功能使得qssh在主线程调用即能正常使用。 封装如下 // .h
#ifndef SSHCLIENT_H
#define SSHCLIENT_H
#include qobject.h
#include sshconnection.h
#include sshremoteprocess.hclass SshClient : public QObject
{Q_OBJECT
public:SshClient();~SshClient();void ConnectToHost(const QString host, const QString user, const QString pwd);void DisConnectFromHost();void SendCmd(const QByteArray data);signals:void SendDataRecv(const QByteArray data);void SendConnected(bool bConned);void SendShellStarted(bool bStarted);void SendRetMsg(const QString msg);private slots:void OnConnected();void onConnectionError(QSsh::SshError);void OnShellStarted();void OnShellDataRecieved();void OnShellError();private:QString mIp;QString mUserName;QString mPwd;QSsh::SshConnection *mpConnection Q_NULLPTR; // 连接ssh服务器QSharedPointerQSsh::SshRemoteProcess mpShell; // ssh的shell用于发送与回显消息
};#endif // SSHCLIENT_H// .cpp
#include qcoreapplication.h
#include sshclient.h
#include log.hSshClient::SshClient()
{}SshClient::~SshClient()
{DisConnectFromHost();
}void SshClient::ConnectToHost(const QString host, const QString username, const QString pwd)
{QSsh::SshConnectionParameters params;params.setHost(host);params.setUserName(username);params.setPassword(pwd);params.authenticationType QSsh::SshConnectionParameters::AuthenticationTypePassword;params.timeout 10;//30;params.setPort(22);if(mpConnection Q_NULLPTR){mpConnection new QSsh::SshConnection(params, this); // TODO free this pointer!}connect(mpConnection, SIGNAL(connected()), SLOT(OnConnected()));connect(mpConnection, SIGNAL(error(QSsh::SshError)), SLOT(onConnectionError(QSsh::SshError)));mpConnection-disconnectFromHost();mpConnection-connectToHost();LOG_INFO(conneting to host:%s user:%s pwd:%s,qPrintable(host),qPrintable(username),qPrintable(pwd));
}void SshClient::DisConnectFromHost()
{if(mpShell){emit SendShellStarted(false);mpShell-close();mpShell.reset();}if(mpConnection ! Q_NULLPTR){emit SendConnected(false);mpConnection-disconnectFromHost();delete mpConnection;mpConnection Q_NULLPTR;}
}void SshClient::OnConnected()
{emit SendConnected(true);LOG_INFO(ssh is connected);mpShell mpConnection-createRemoteShell();connect(mpShell.get(), SIGNAL(started()), SLOT(OnShellStarted()));connect(mpShell.get(), SIGNAL(readyReadStandardOutput()), SLOT(OnShellDataRecieved()));connect(mpShell.get(), SIGNAL(readyReadStandardError()), SLOT(OnShellError()));mpShell-start();
}void SshClient::onConnectionError(QSsh::SshError)
{QString errStr mpConnection-errorString();emit SendRetMsg(QString::fromLocal8Bit(连接出错:%1).arg(errStr));LOG_ERROR(ssh connected err:%s,mpConnection-errorString().toLocal8Bit().data());//mpConnection-disconnectFromHost();// mpConnection-connectToHost();
}void SshClient::OnShellStarted()
{LOG_INFO(shell is started);SendShellStarted(true);
}void SshClient::OnShellDataRecieved()
{QByteArray data mpShell-readAll();if (data.isEmpty())return;emit SendDataRecv(data);LOG_DEBUG(recv from shell data:%s,data.data());
}void SshClient::OnShellError()
{emit SendRetMsg(QString::fromLocal8Bit(错误:%1).arg(mpShell-errorString()));LOG_ERROR(recv from shell err:%s,mpShell-errorString().toLocal8Bit().data());
}// 发送了命令后shell会回复两条同样的命令用于回显
void SshClient::SendCmd(const QByteArray data)
{if(!mpShell){LOG_ERROR(shell is not start, cant sendmsg:%s,data.data());return;}qint64 n mpShell-write(data);LOG_DEBUG(write shell data, len:%d, data:%s,n,data.data());static const int timeoutMs 3000;int index 0;bool bsucc mpShell-waitForReadyRead(10);while(!bsucc index timeoutMs){ index 10;QCoreApplication::processEvents();if (!mpShell) break;bsucc mpShell-waitForReadyRead(10);} /*if (bsucc){QByteArray data mpShell-readAll();if (data.isEmpty())return;emit SendDataRecv(data);LOG_DEBUG(recv from shell data:%s, data.data());}*/
}
