第2頁共12頁課程設(shè)計說明書此設(shè)計模板的紅色部分都是你要修改的，小標(biāo)題可以酌情增刪這句話刪掉學(xué)生信息課程設(shè)計信息課程名稱計算機視覺課程設(shè)計課程設(shè)計題目智能相冊課程設(shè)計時間1~8周小組情況一人一組指導(dǎo)教師董帥批改情況目錄TOC\o"1-4"\h\z\u1. 課程設(shè)計內(nèi)容 32. 課程設(shè)計目的 33. 背景知識 34. 工具/準(zhǔn)備工作 35. 設(shè)計步驟與方法 45.1. 步驟1：設(shè)計客戶端與服務(wù)器端的通信協(xié)議 45.1.1. 步驟1.1：客戶端與服務(wù)器端的交互協(xié)議設(shè)計 45.1.2. 步驟1.2：服務(wù)器端與客戶端數(shù)據(jù)交互協(xié)議 45.2. 步驟2：編寫服務(wù)器端 45.2.1. 步驟2.1：設(shè)計服務(wù)器的多用戶響應(yīng) 45.2.2. 步驟2.2：設(shè)計服務(wù)器服務(wù)線程 55.3. 步驟3：客戶端設(shè)計 75.4. 步驟3：設(shè)計程序的界面 106. 軟件測試截圖 117. 設(shè)計結(jié)果及分析 118. 設(shè)計結(jié)論 129. 問題及心得體會 1210. 對本設(shè)計過程及方法、手段的改進建議 1211. 任務(wù)分配 1212. 參考文獻 1213. 課程設(shè)計評價(教師) 12如果你修改了下面的標(biāo)題，請更新目錄的域，并刪掉這句話

課程設(shè)計報告課程設(shè)計內(nèi)容本課程設(shè)計的內(nèi)容是設(shè)計一個基于QT的文件傳輸軟件，支持多用戶以及文件的斷點續(xù)傳。課程設(shè)計目的考察自己對課程的掌握程度，以及自己實際的動手能力，編程能力。背景知識TCP/IP協(xié)議的原理QT軟件的應(yīng)用工具/準(zhǔn)備工作硬件：安裝有VS2012的PC機一臺軟件： Windows10操作系統(tǒng) VS2012 Opencv3.1.4設(shè)計步驟與方法步驟1：設(shè)計客戶端與服務(wù)器端的通信協(xié)議1、客戶端與服務(wù)器端的請求協(xié)議2、服務(wù)器端與客戶端數(shù)據(jù)交互協(xié)議步驟1.1：客戶端與服務(wù)器端的交互協(xié)議設(shè)計|幀總長|請求類型|參數(shù)…|說明：請求下載列表|幀總長|列表|X|請求下載文件|幀總長|文件|文件路徑|文件傳輸起始位|步驟1.2：服務(wù)器端與客戶端數(shù)據(jù)交互協(xié)議|幀總長|列表/文件|數(shù)據(jù)|步驟2：編寫服務(wù)器端步驟2.1：設(shè)計服務(wù)器的多用戶響應(yīng)重寫了QTcpServer的虛函數(shù)，實現(xiàn)了每當(dāng)一個客戶端訪問服務(wù)器是，開啟一個線程響應(yīng)客戶端的請求。voidDownloadServer::incomingConnection(inthandle){DownloadThread*Thread=newDownloadThread(handle,this);Thread->start();}步驟2.2：設(shè)計服務(wù)器服務(wù)線程在這個函數(shù)中，線程主要負(fù)責(zé)兩件事情，一、完成對客戶端 請求的解析；二、響應(yīng)客戶端請求。voidDownloadThread::run(){qint64nextBlockSize;QStringReqFileName;qint64ReqFileStartPos,BytesRemaining;QTcpSocketToClient;ToClient.setSocketDescriptor(handel);ToClient.waitForReadyRead();nextBlockSize=0;QByteArrayOutBlock;QDataStreamout(&OutBlock,QIODevice::WriteOnly);out.setVersion(QDataStream::Qt_4_6);QDataStreamin(&ToClient);in.setVersion(QDataStream::Qt_4_6);if(nextBlockSize==0){if(ToClient.bytesAvailable()<sizeof(qint64))return;in>>nextBlockSize;}if(ToClient.bytesAvailable()<nextBlockSize)return;qint64ReqType;in>>ReqType;switch(ReqType)//確定客戶端的請求{caseReq_List://下載列表請求OutBlock.clear();out<<qint64(0)<<qint64(0)<<Server_List;out.device()->seek(0);out<<qint64(OutBlock.size()-sizeof(qint64));ToClient.write(OutBlock);ToClient.flush();ToClient.waitForBytesWritten();in<<qint64(0xFFFFFFFF);ToClient.flush();ToClient.waitForBytesWritten();break;caseReq_File://文件傳輸請求in>>ReqFileName;in>>ReqFileStartPos;printf(ReqFileName+":"+QString::number(ReqFileStartPos)+"\n");QFile*ReqFile=newQFile(ReqFileName);ReqFile->open(QIODevice::ReadOnly);ReqFile->seek(ReqFileStartPos);BytesRemaining=ReqFile->size();OutBlock.clear();out<<qint64(0)<<qint64(2)<<BytesRemaining;out.device()->seek(0);out<<qint64(OutBlock.size()-sizeof(qint64));ToClient.write(OutBlock);ToClient.waitForBytesWritten();while(!ReqFile->atEnd()){printf("BytesRemaining:"+QString::number(BytesRemaining)+"\n");QByteArray_data,filedat;QDataStreamFileBlock(&_data,QIODevice::WriteOnly);FileBlock.setVersion(QDataStream::Qt_4_6);filedat=ReqFile->read(FileBlockSize);FileBlock<<qint64(0)<<qint64(1)<<filedat;FileBlock.device()->seek(0);FileBlock<<qint64(_data.size()-sizeof(qint64));ToClient.write(_data);ToClient.flush();ToClient.waitForBytesWritten();BytesRemaining-=filedat.size();}in<<qint64(0xFFFFFFFF);ToClient.flush();ToClient.waitForBytesWritten();break;};nextBlockSize=0;ToClient.disconnectFromHost();ToClient.close();}步驟3：客戶端設(shè)計功能實現(xiàn)：1、向服務(wù)器端發(fā)送請求 2、等待接收服務(wù)器傳來的數(shù)據(jù)具體實現(xiàn)代買如下向服務(wù)器端發(fā)送請求：voidMyClient::SendRequest(shortOpt){ToServer=newQTcpSocket(this);SocketState=false;connect(ToServer,SIGNAL(connected()),this,SLOT(isConnected()));connect(ToServer,SIGNAL(readyRead()),this,SLOT(getData()));connect(ToServer,SIGNAL(disconnected()),ToServer,SLOT(deleteLater()));ConnectToServer(HostIP);QByteArrayReqBlock;QDataStreamout(&ReqBlock,QIODevice::WriteOnly);out.setVersion(QDataStream::Qt_4_6);switch(Opt){caseDownload_List:out<<qint64(0)<<qint64(Download_List);out.device()->seek(0);out<<qint64(ReqBlock.size()-sizeof(qint64));break;caseDownload_File:out<<qint64(0)<<qint64(Download_File)<<FileName<<FileStartPos;out.device()->seek(0);out<<qint64(ReqBlock.size()-sizeof(qint64));Target_File=newQFile(FileName.right(FileName.size()-FileName.lastIndexOf('/')-1));Target_File->open(QIODevice::WriteOnly|QIODevice::Append);break;default:break;};ToServer->write(ReqBlock);}等待服務(wù)器傳來的數(shù)據(jù)voidMyClient::getData(){qint64FrameType;QDataStreamin(ToServer);in.setVersion(QDataStream::Qt_4_6);forever{printf(QString::number(ToServer->bytesAvailable())+"\n");if(nextBlockSize==0){if(ToServer->bytesAvailable()<sizeof(qint64)){printf("break1\n");break;}in>>nextBlockSize;printf("size:"+QString::number(nextBlockSize)+"\n");}if(nextBlockSize==qint64(0xFFFFFFFF)){printf("break2\n");QMessageBoxmsgBox;msgBox.setIcon(QMessageBox::Information);msgBox.setText("Transmisiondone!");msgBox.exec();nextBlockSize=0;break;}if(ToServer->bytesAvailable()<nextBlockSize){printf("break3\n");break;}in>>FrameType;printf("type:"+QString::number(FrameType)+"\n");if(Is_List_Item==FrameType){in>>Client_List;if(Client_List.size()==0){}elseemitListUpdataed();}elseif(Is_File_Data==FrameType){printf("writeData\n");QByteArrayFileData;in>>FileData;Target_File->write(FileData);Target_File_Info->open(QIODevice::WriteOnly);Target_File_Info->write(QString::number(Target_File->size()));Target_File_Info->close();NowFileSize=Target_File->size();//emitProgressBarUpdata(Target_File->size(),FileSize);if(Target_File->size()==FileSize){Target_File_Info->remove();Target_File->close();}}elseif(Is_File_Size==FrameType){in>>FileSize;TotalFileSize=FileSize;printf("FileSize:"+QString::numb