目錄

1、QZipWriter

2、主要功能

3、示例

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1、QZipWriter

QZipWriter 是 Qt 提供的一個類，用于創建和管理 ZIP 文件。它屬于 Qt 的 QtGui 模塊，雖然在 Qt 6 中已經被移除，但在早期的 Qt 版本中，它被用作一種簡便的方式來創建 ZIP 壓縮包。QZipWriter 允許你創建一個 ZIP 文件，并向其中添加文件或目錄。

2、主要功能

• 創建 ZIP 文件：可以創建新的 ZIP 文件并向其中添加文件和目錄。
• 設置壓縮策略：可以設置是否壓縮文件。
• 寫入數據：可以向 ZIP 文件中寫入任意數據。

3、示例

#include <QCoreApplication>
#include <QFile>
#include <QDir>
#include <QDebug>
#include <QTextStream>
#include <QFileInfo>
#include "qzipwriter_p.h"void addFileToZip(QZipWriter &zipWriter, const QString &filePath, const QString &zipPath) {QFile file(filePath);if (file.open(QIODevice::ReadOnly)) {QZipWriter::FileInfo fileInfo;fileInfo.isDir = false;fileInfo.isFile = true;fileInfo.filePath = zipPath;fileInfo.size = file.size();zipWriter.addFile(fileInfo.filePath, file.readAll());file.close();qDebug() << "Added file to zip:" << zipPath;} else {qWarning() << "Failed to open file for reading:" << filePath;}
}void addDirToZip(QZipWriter &zipWriter, const QString &dirPath, const QString &zipPath) {QDir dir(dirPath);if (!dir.exists()) {qWarning() << "Directory does not exist:" << dirPath;return;}QFileInfoList entries = dir.entryInfoList(QDir::Files | QDir::Dirs | QDir::NoDotAndDotDot);for (const QFileInfo &entry : entries) {QString newZipPath = zipPath.isEmpty() ? entry.fileName() : zipPath + "/" + entry.fileName();if (entry.isDir()) {zipWriter.addDirectory(newZipPath);addDirToZip(zipWriter, entry.absoluteFilePath(), newZipPath);} else {addFileToZip(zipWriter, entry.absoluteFilePath(), newZipPath);}}
}int main(int argc, char *argv[]) {QCoreApplication app(argc, argv);QString sourceDirPath = "path/to/source/folder";QString zipFilePath = "path/to/target/zipfile.zip";QFile zipFile(zipFilePath);if (!zipFile.open(QIODevice::WriteOnly)) {qWarning() << "Cannot open zip file for writing:" << zipFilePath;return -1;}QZipWriter zipWriter(&zipFile);zipWriter.setCompressionPolicy(QZipWriter::AutoCompress);addDirToZip(zipWriter, sourceDirPath, "");zipWriter.close();zipFile.close();qDebug() << "Folder successfully compressed to" << zipFilePath;return 0;
}