qt zip
时间: 2023-07-13 13:17:32 浏览: 56
您需要使用Qt中提供的Zip库来进行zip文件的创建和解压缩。以下是一个简单的示例代码,用于创建一个zip文件:
```cpp
#include <QDir>
#include <QFile>
#include <QFileInfo>
#include <QZipWriter>
void createZip(const QString& zipFilePath, const QString& sourceDirPath)
{
// Create a QFile object for the zip file
QFile zipFile(zipFilePath);
if (!zipFile.open(QIODevice::WriteOnly)) {
qDebug() << "Failed to open zip file: " << zipFilePath;
return;
}
// Create a QZipWriter object for writing to the zip file
QZipWriter zip(&zipFile);
// Iterate through all the files in the source directory
QDir sourceDir(sourceDirPath);
for (const QFileInfo& fileInfo : sourceDir.entryInfoList(QDir::Files)) {
// Get the path of the file relative to the source directory
QString filePath = fileInfo.absoluteFilePath();
QString relativeFilePath = sourceDir.relativeFilePath(filePath);
// Add the file to the zip archive
if (!zip.addFile(filePath, relativeFilePath)) {
qDebug() << "Failed to add file to zip archive: " << filePath;
}
}
// Close the zip archive
zip.close();
}
```
调用`createZip`函数并传入要创建的zip文件路径和源目录路径即可创建一个zip文件。
解压缩zip文件也很简单,使用QZipReader类即可。以下是一个简单的示例代码,用于解压缩一个zip文件:
```cpp
#include <QDir>
#include <QFile>
#include <QFileInfo>
#include <QZipReader>
void extractZip(const QString& zipFilePath, const QString& destinationDirPath)
{
// Create a QZipReader object for reading the zip file
QZipReader zip(zipFilePath);
if (!zip.isValid()) {
qDebug() << "Invalid zip file: " << zipFilePath;
return;
}
// Iterate through all the files in the zip archive
for (const QString& filePath : zip.fileNames()) {
// Get the path of the file relative to the zip archive
QString relativeFilePath = filePath;
// Extract the file to the destination directory
QString destinationFilePath = QDir(destinationDirPath).filePath(relativeFilePath);
if (!zip.extractFile(filePath, destinationFilePath)) {
qDebug() << "Failed to extract file from zip archive: " << filePath;
}
}
// Close the zip archive
zip.close();
}
```
调用`extractZip`函数并传入要解压缩的zip文件路径和目标目录路径即可解压缩zip文件。