Qt实现 实时监控文件夹状态

####Qt实现 实时监控文件夹状态：文件夹内容增删、重命名、删除等

//重建服务器请求监测类 #ifndef QRECONREQUESTLISTENER_H #define QRECONREQUESTLISTENER_H #include <QObject> #include <QFileInfoList> class QFileSystemWatcher; class QReconRequestMonitor : public QObject { Q_OBJECT public: QReconRequestMonitor( const QString& strDirectory ); ~QReconRequestMonitor(); signals: void sigCommitReconRequest( const QString& strFilePath ); protected slots: void slotDirectoryChanged( const QString& strDirectory ); private: QStringList GetFileNames( const QFileInfoList& fileInfoList ); private: QString m_strMonitorDirectory; QStringList m_strListFileNames; QFileSystemWatcher* m_pDirectoryWatcher; }; #endif // QRECONREQUESTLISTENER_H

#include "QReconRequestMonitor.h" #include <QDir> #include <QStringList> #include <QFileSystemWatcher> QReconRequestMonitor::QReconRequestMonitor( const QString& strDirectory ) { m_strListFileNames.clear(); m_strListFileNames = QDir( strDirectory ).entryList(); m_strMonitorDirectory = strDirectory; m_pDirectoryWatcher = new QFileSystemWatcher( this ); m_pDirectoryWatcher->addPath( strDirectory ); connect( m_pDirectoryWatcher, SIGNAL( directoryChanged( const QString& ) ), this, SLOT( slotDirectoryChanged( const QString& ) ) ); } QReconRequestMonitor::~QReconRequestMonitor() { m_strListFileNames.clear(); } void QReconRequestMonitor::slotDirectoryChanged( const QString& ) { QStringList strListFileNames; //To save new file names QFileInfoList fileInfoList = QDir( m_strMonitorDirectory ).entryInfoList(); for( int n = 0; n < fileInfoList.size(); n++ ) { QFileInfo fileInfo = fileInfoList[ n ]; if( fileInfo.fileName().compare( "." ) == 0 || fileInfo.fileName().compare( ".." ) == 0 ) continue; if( fileInfo.isDir() ) continue; QString strFileName = fileInfo.fileName(); if( !m_strListFileNames.contains( strFileName ) ) strListFileNames << strFileName; } if( strListFileNames.isEmpty() ) { m_strListFileNames.clear(); m_strListFileNames = GetFileNames( fileInfoList ); return; } for( int n = 0; n < strListFileNames.size(); n++ ) { //commit recon request QString strFilePath = m_strMonitorDirectory + "/" + strListFileNames[ n ]; emit sigCommitReconRequest( strFilePath ); } m_strListFileNames.clear(); m_strListFileNames = GetFileNames( fileInfoList ); return; } QStringList QReconRequestMonitor::GetFileNames( const QFileInfoList& fileInfoList ) { QStringList strLstNames; int nFileNum = fileInfoList.size(); for( int n = 0; n < nFileNum; n++ ) { QFileInfo fileInfo = fileInfoList[ n ]; strLstNames << fileInfo.fileName(); } return strLstNames; }