I used qftp in the qthread,but when i upload file ,I Cannot find the uploaded file and the signal code cannot be executed when debug.the following is code
Qt Code: 
  1. //////////////storethread.h/////////
  2. class storescpThread:public QThread
  3. {
  4. Q_OBJECT
  5. public:
  6. 	storescpThread(QTextEdit *txtEdit,QObject *parent = 0);
  7. 	~storescpThread();
  8. private slots:
  9. 	 void connectOrDisconnect();
  10. 	 void ftpListInfo(const QUrlInfo &urlInfo);
  11. 	 void ftpCommandFinished(int commandId, bool error);
  12. 	 void updateDataTransferProgress(qint64 readBytes,qint64 totalBytes);
  13. private :
  14. 	 QTextEdit * textEdit;
  15. 	 QFtp *ftp; 
  16. 	 QFile *file;
  17. 	 QStringList fileList;
  18. }
  19. /////////////////////////storethread.cxx//////////
  20. storescpThread::storescpThread(QTextEdit *txtEdit,QObject *parent): QThread(parent)
  21. {
  22.     ftp=0;
  23. }
  24. void storescpThread::connectOrDisconnect()
  25. {
  26. 	if (ftp) {
  27. 		ftp->abort();
  28. 		ftp->deleteLater();
  29. 		ftp = 0;		
  30. 	}
  31.  
  32. 	ftp = new QFtp(this);
  33.  
  34.                //the SLOT function not be perfomed! why?
  35. 	[FONT="Arial Black"]connect(ftp, SIGNAL(commandFinished(int, bool)),
  36. 		this, SLOT(ftpCommandFinished(int, bool)));
  37. 	connect(ftp, SIGNAL(listInfo(const QUrlInfo &)),
  38. 		this, SLOT(ftpListInfo(const QUrlInfo &)));
  39. 	connect(ftp, SIGNAL(dataTransferProgress(qint64, qint64)),
  40. 		this, SLOT(updateDataTransferProgress(qint64, qint64)));[/FONT]	
  41.  
  42.                ftp->connectToHost("192.168.1.1");
  43. 	ftp->login("ftpuser","ftpuser");
  44. 	ftp->cd("/data"); //init dir
  45. 	fileList.clear();
  46. 	ftp->list();
  47.                 QFile file("c:\\testdata.jpg");
  48. 	if (!file.open(QIODevice::ReadOnly))
  49. 	     return false;
  50. 	QFileInfo fi(filename);
  51. 	ftp->put(&file,"testtest.jpg");   //the file not be uploaded!!!!!
  52.  
  53.  
  54. }
  55. // the following SLOT not be perfomed!where is the emited message?
  56. void storescpThread::ftpCommandFinished(int, bool error)
  57. {
  58.  
  59. 	if (ftp->currentCommand() == QFtp::ConnectToHost) {
  60. 		if (error) {
  61. 			QMessageBox::information(0, tr("FTP"),
  62. 				tr("error"));			
  63. 			return;
  64. 		}		
  65. 		return;
  66. 	}
  67.  
  68. 	if (ftp->currentCommand() == QFtp::Get) {	
  69.  
  70. 	} 
  71. 	if (ftp->currentCommand() == QFtp::List) {
  72. 		QMessageBox::information(0, tr("FTP"),"LIST");		
  73. 	}
  74. 	if (ftp->currentCommand() == QFtp::Put) {
  75.  
  76. 	}
  77. }
  78.  
  79. void storescpThread::updateDataTransferProgress(qint64 readBytes,  qint64 totalBytes)
  80. {
  81. }
  82.  
  83. void storescpThread::ftpListInfo(const QUrlInfo &urlInfo)
  84. {
  85. 	fileList<<urlInfo.name() ;
  86. }
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