苹果手机解压rar文件

项目开发中，遇到许多文件操作，特别是压缩或解压。大多使用开源的ZIP、7Z方案，已有大量第三方库可用，在这不多重复。

如果项目中，需要解压rar文件，相信你会在心里骂千万遍SB，然后熟练的cmd调用winrar...

本文另辟蹊径，使用开源的sevenzipjbinding进行rar5文件解压。（注意：是现流行的rar5,非rar4）

上代码：

net.sf.sevenzipjbindingsevenzipjbinding16.02-2.01net.sf.sevenzipjbindingsevenzipjbinding-all-platforms16.02-2.01//随机 通行 文件，较多用于大文件处理RandomAccessFile randomAccessFile = null;IInArchive inArchive = null;try {//只读打开文件randomAccessFile = new RandomAccessFile(file, "r");inArchive = SevenZip.openInArchive(null, new RandomAccessFileInStream(randomAccessFile));final int[] in = new int[inArchive.getNumberOfItems()];for (int i = 0; i < in.length; i++) {in[i] = i;}//savePath输出路径inArchive.extract(in, false, new MyArchiveExtractCallback(inArchive, savePath)); } catch (Exception e) { //记录或抛出错误 } finally {//别忘了closeable}

MyArchiveExtractCallback:

public class MyArchiveExtractCallback implements IArchiveExtractCallback {private int index;private IInArchive inArchive;private String ourDir;public MyArchiveExtractCallback(final IInArchive newinArchive, final String newourDir) {this.inArchive = newinArchive;this.ourDir = newourDir;}/** * Return sequential output stream for the file with index index. * 详细请看接口说明 */@Overridepublic ISequentialOutStream getStream(final int newindex, final ExtractAskMode newextractAskMode)throws SevenZipException {this.index = newindex;final String path = (String) inArchive.getProperty(index, PropID.PATH);final boolean isFolder = (Boolean) inArchive.getProperty(index, PropID.IS_FOLDER);return new ISequentialOutStream() {public int write(final byte[] data) throws SevenZipException {try {if (!isFolder) {final File file = new File(ourDir + File.separator + path);FileUtils.writeByteArrayToFile(file, data);}} catch (Exception e) {e.printStackTrace();}return data.length;}};} @Overridepublic void setCompleted(final long arg0) throws SevenZipException {}@Overridepublic void setTotal(final long arg0) throws SevenZipException {}@Overridepublic void prepareOperation(final ExtractAskMode arg0) throws SevenZipException {}@Overridepublic void setOperationResult(final ExtractOperationResult extractOperationResult) throws SevenZipException {}}

但是很可惜，目前还不支持RAR5的压缩。官网功能介绍如下：

Extract

7-Zip Zip Rar Tar Split Lzma Iso HFS GZip

Cpio BZip2 Z Arj Chm Lhz Cab Nsis

Ar/A/Lib/Deb Rpm Wim Udf Fat Ntfs

Create/ｕｐｄａｔｅ

7-Zip Zip GZip Tar BZip2

It‘s cross-platform. Binaries are available for

› MS-Windows 32/64 › Darwin Mac OS X

› Linux:

Intel 32/64

ARMv5 (armel) *

ARMv6 (RaspberryPi 2) *

ARMv7 (armhf) *

ARM64 *