解压缩zip

1. 使用hutool工具包中ZipUtil工具类

<dependency><groupId>cn.hutool</groupId><artifactId>hutool-all</artifactId><version>5.7.2</version>
</dependency>

// 参数是压缩包路径和编码
// GBK是为了解决中文解压缩乱码的问题
ZipUtil.unzip(f.getAbsolutePath(), Charset.forName("GBK"));

2. 使用zip4j工具包

<dependency><groupId>net.lingala.zip4j</groupId><artifactId>zip4j</artifactId><version>2.9.1</version>
</dependency>

ZipFile zipFile = new ZipFile(f.getAbsolutePath());
// 中文乱码处理
zipFile.setCharset(Charset.forName("GBK"));
File zdir = new File(f.getAbsolutePath().substring(0, f.getAbsolutePath().indexOf(".")));
if (!zdir.isDirectory()) {zdir.mkdir();
}
try {// 解压到指定文件夹zipFile.extractAll(zdir.getAbsolutePath());
} catch (ZipException e) {e.printStackTrace();
}

解压缩rar

1. 使用junrar工具包

<dependency><groupId>com.github.junrar</groupId><artifactId>junrar</artifactId><version>7.4.0</version>
</dependency>

File zdir = new File(f.getAbsolutePath().substring(0, f.getAbsolutePath().indexOf(".")));
if (!zdir.isDirectory()) {zdir.mkdir();
}
try {Junrar.extract(f.getAbsolutePath(), zdir.getAbsolutePath());
} catch (IOException e) {e.printStackTrace();
} catch (RarException e) {e.printStackTrace();
}

2. 使用sevenzipjbinding

<dependency><groupId>net.sf.sevenzipjbinding</groupId><artifactId>sevenzipjbinding</artifactId><version>16.02-2.01</version>
</dependency>
<dependency><groupId>net.sf.sevenzipjbinding</groupId><artifactId>sevenzipjbinding-all-platforms</artifactId><version>16.02-2.01</version>
</dependency>

try {// f -  压缩文件RandomAccessFile randomAccessFile = new RandomAccessFile(f.getAbsolutePath(), "r");IInArchive archive = SevenZip.openInArchive(ArchiveFormat.RAR5,  new RandomAccessFileInStream(randomAccessFile));// 解压文件路径File zdir = new File( f.getAbsolutePath().substring(0,  f.getAbsolutePath() .indexOf(".")));if (!zdir.isDirectory()) {zdir.mkdir();}int[] in = new int[archive.getNumberOfItems()];for(int i=0;i<in.length;i++){in[i] = i;}archive.extract(in, false, new ExtractCallback(archive, zdir.getAbsolutePath()));archive.close();randomAccessFile.close();
} catch (FileNotFoundException | SevenZipException e) {e.printStackTrace();
} catch (IOException e) {e.printStackTrace();
}

private static class ExtractCallback implements IArchiveExtractCallback {private final IInArchive inArchive;private final String extractPath;public ExtractCallback(IInArchive inArchive, String extractPath) {this.inArchive = inArchive;if (!extractPath.endsWith("/") && !extractPath.endsWith("\\")) {extractPath += File.separator;}this.extractPath = extractPath;}@Overridepublic void setTotal(long total) {}@Overridepublic void setCompleted(long complete) {}@Overridepublic ISequentialOutStream getStream(int index, ExtractAskMode extractAskMode) throws SevenZipException {return data -> {String filePath = inArchive.getStringProperty(index, PropID.PATH);FileOutputStream fos = null;try {File path = new File(extractPath + filePath);if(!path.getParentFile().exists()){path.getParentFile().mkdirs();}if(!path.exists()){path.createNewFile();}fos = new FileOutputStream(path, true);fos.write(data);} catch (IOException e) {log.info("IOException while extracting " + filePath);} finally{try {if(fos != null){fos.flush();fos.close();}} catch (IOException e) {log.error("Could not close FileOutputStream", e);}}return data.length;};}@Overridepublic void prepareOperation(ExtractAskMode extractAskMode) {}@Overridepublic void setOperationResult(ExtractOperationResult extractOperationResult) {}
}