wordpress acg站,下载网页设计素材,电商平台网站技术开发,私人装修接单网站一、实现方式
通过Qt自带的库来实现#xff0c;使用多线程方式#xff0c;通过信号和槽来触发压缩与解压缩#xff0c;并将压缩和解压缩结果回传过来。 使用的类#xff1a;
#include QtGui/private/qzipreader_p.h
#include QtGui/private/qzipwriter…一、实现方式
通过Qt自带的库来实现使用多线程方式通过信号和槽来触发压缩与解压缩并将压缩和解压缩结果回传过来。 使用的类
#include QtGui/private/qzipreader_p.h
#include QtGui/private/qzipwriter_p.h二、环境准备
1、在.pro文件中添加模块gui-private
QT core gui gui-private若未cmake工程需要在CMakeList.txt中添加
includeinclude_directories(${Qt5Gui_PRIVATE_INCLUDE_DIRS}))三、实现示例
#include QFileInfoList
#include QDir
#include QFileInfo#define FILE_MAX_SIZE 1024QFileInfoList ergodic_compression_file(QZipWriter *writer, const QString rootPath, QString dirPath)
{QDir crrDir(dirPath);///解压失败的文件QFileInfoList errFileList;///添加文件QFileInfoList fileList crrDir.entryInfoList(QDir::Files | QDir::Hidden | QDir::NoSymLinks);for (const QFileInfo fileInfo : fileList){QString subFilePath fileInfo.absoluteFilePath();QString zipWithinfilePath subFilePath.mid(rootPath.size() 1);QFile file(subFilePath);qint64 size file.size() / 1024 / 1024;if (!file.open(QIODevice::ReadOnly) || size FILE_MAX_SIZE){///打开文件失败或者大于1GB导致无法解压的文件errFileList.append(fileInfo);continue;}writer-addFile(zipWithinfilePath, file.readAll());file.close();}///添加文件夹QFileInfoList folderList crrDir.entryInfoList(QDir::Dirs | QDir::NoDotAndDotDot);for (const QFileInfo folderInfo : folderList){QString subDirPath folderInfo.absoluteFilePath();QString zipWithinDirPath subDirPath.mid(rootPath.size() 1);writer-addDirectory(zipWithinDirPath);QFileInfoList child_file_list ergodic_compression_file(writer, rootPath, subDirPath);errFileList.append(child_file_list);}return errFileList;
}bool compression_zip_file(const QString selectFile2DirPath, const QString savePath)
{if (selectFile2DirPath.isEmpty() || savePath.isEmpty()){return false;}if (!QFile::exists(selectFile2DirPath) || !QFileInfo(savePath).isDir()){return false;}if (QFileInfo(selectFile2DirPath).isFile())///压缩的是一个文件{QString fileName QFileInfo(selectFile2DirPath).baseName();QString writerFilePath savePath / fileName .zip;QFile selectFile(selectFile2DirPath);qint64 size selectFile.size() / 1024 / 1024;if (!selectFile.open(QIODevice::ReadOnly) || size FILE_MAX_SIZE){///打开文件失败或者大于1GB导致无法压缩的文件return false;}QString addFileName QFileInfo(selectFile2DirPath).fileName();QZipWriter writer(writerFilePath);writer.addFile(addFileName, selectFile.readAll());selectFile.close();return true;}else///压缩的是一个文件夹{QString zipRootFolder selectFile2DirPath.mid(selectFile2DirPath.lastIndexOf(/) 1);QString selectDirUpDir selectFile2DirPath.left(selectFile2DirPath.lastIndexOf(/));QString saveFilePath savePath / zipRootFolder .zip;QZipWriter writer(saveFilePath);writer.addDirectory(zipRootFolder);QFileInfoList fileList ergodic_compression_file(writer, selectDirUpDir, selectFile2DirPath);writer.close();if (0 fileList.size())return true;return false;}
}bool decompression_zip_file(const QString selectZipFilePath, const QString savePath)
{if (selectZipFilePath.isEmpty() || savePath.isEmpty()){return false;}if (!QFileInfo(selectZipFilePath).isFile() || !QFileInfo(savePath).isDir()){return false;}bool ret true;QZipReader zipReader(selectZipFilePath);QVectorQZipReader::FileInfo zipAllFiles zipReader.fileInfoList();for (const QZipReader::FileInfo zipFileInfo : zipAllFiles){const QString currDir2File savePath / zipFileInfo.filePath;if (zipFileInfo.isSymLink){QString destination QFile::decodeName(zipReader.fileData(zipFileInfo.filePath));if (destination.isEmpty()){ret false;continue;}QFileInfo linkFi(currDir2File);if (!QFile::exists(linkFi.absolutePath()))QDir::root().mkpath(linkFi.absolutePath());if (!QFile::link(destination, currDir2File)){ret false;continue;}}if (zipFileInfo.isDir){QDir(savePath).mkpath(currDir2File);}if (zipFileInfo.isFile){QByteArray dt zipFileInfo.filePath.toUtf8();QString strtmp QString::fromLocal8Bit(dt);QFile currFile(currDir2File);if (!currFile.isOpen()){currFile.open(QIODevice::WriteOnly);}else {ret false;continue;}qint64 size zipFileInfo.size / 1024 / 1024;if (size FILE_MAX_SIZE){ret false;continue;}QByteArray byteArr zipReader.fileData(strtmp);currFile.write(byteArr);currFile.setPermissions(zipFileInfo.permissions);currFile.close();}}zipReader.close();return ret;
}待完善 1、中文路径文件名含有中文 2、快捷文件隐藏文件 3、隐藏文件夹.dir和…dir例如.vs 4、单个超大文件的支持1G以上
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