如何高效解压zip、rar、.tar.gz等多种格式压缩文件？

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解压zip、rar、tar.gz压缩包，代码如下：

javapackage com.hisign;

import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.BufferedReader;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.InputStreamReader;

public class Unzip { public static void main(String[] args) { File zipFile=new File(path/to/your/file.zip); unzip(zipFile); }

public static void unzip(File zipFile) { try (BufferedInputStream bis=new BufferedInputStream(new FileInputStream(zipFile)); BufferedReader br=new BufferedReader(new InputStreamReader(bis))) { String line; while ((line=br.readLine()) !=null) { File file=new File(zipFile.getParent(), line); if (file.isDirectory()) { file.mkdirs(); } else { try (BufferedOutputStream bos=new BufferedOutputStream(new FileOutputStream(file))) { byte[] buffer=new byte[1024]; int len; while ((len=bis.read(buffer)) > 0) { bos.write(buffer, 0, len); } } } } } catch (Exception e) { e.printStackTrace(); } }}

zip,rar.tar.gz压缩包的解压

package com.hisign; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.Enumeration; import java.util.List; import java.util.Map; import java.util.zip.GZIPInputStream; import java.util.zip.GZIPOutputStream; import org.apache.commons.compress.archivers.ArchiveInputStream; import org.apache.commons.compress.archivers.ArchiveStreamFactory; import org.apache.commons.compress.archivers.tar.TarArchiveEntry; import org.apache.commons.compress.archivers.tar.TarArchiveInputStream; import org.apache.tools.zip.ZipEntry; import org.apache.tools.zip.ZipFile; import com.alibaba.fastjson.JSON; import com.google.common.collect.Lists; import com.google.common.collect.Maps; import de.innosystec.unrar.Archive; import de.innosystec.unrar.rarfile.FileHeader; public class decompressionUtil { public static void main(String[] args) { } private static final int buffer = 2048; /** * Tar文件解压方法 * * @param tarGzFile * 要解压的压缩文件名称（绝对路径名称） * @param destDir * 解压后文件放置的路径名（绝对路径名称） * @return 解压出的文件列表 */ public static void unGZ(String tarGzFile, String destDir) { // List fileList = new ArrayList (); File file = new File(tarGzFile); OutputStream out = null; // 建立输出流，用于将从压缩文件中读出的文件流写入到磁盘 FileInputStream fis = null; // 建立输入流，用于从压缩文件中读出文件 GZIPInputStream gis = null; TarArchiveInputStream taris = null; TarArchiveEntry entry = null; TarArchiveEntry[] subEntries = null; File entryFile = null; File subEntryFile = null; String entryFileName = null; // int entryNum = 0; try { fis = new FileInputStream(tarGzFile); gis = new GZIPInputStream(fis); taris = new TarArchiveInputStream(gis); while ((entry = taris.getNextTarEntry()) != null) { // entryFileName = destDir + File.separatorChar + // file.getName().replace(".tar.gz", "") // + File.separatorChar + entry.getName(); entryFileName = destDir + File.separatorChar + entry.getName(); entryFile = new File(entryFileName); // entryNum++; if (entry.isDirectory()) { if (!entryFile.exists()) { entryFile.mkdir(); } subEntries = entry.getDirectoryEntries(); for (int i = 0; i < subEntries.length; i++) { try { subEntryFile = new File(entryFileName + File.separatorChar + subEntries[i].getName()); // fileList.add(entryFileName + File.separatorChar + // subEntries[i].getName()); out = new FileOutputStream(subEntryFile); byte[] buf = new byte[1024]; int len = 0; while ((len = taris.read(buf)) != -1) { out.write(buf, 0, len); } } catch (Exception e) { e.printStackTrace(); } finally { out.close(); out = null; } } } else { // fileList.add(entryFileName); out = new FileOutputStream(entryFile); try { byte[] buf = new byte[1024]; int len = 0; while ((len = taris.read(buf)) != -1) { out.write(buf, 0, len); } } catch (Exception e) { e.printStackTrace(); } finally { out.close(); out = null; } } } // if (entryNum == 0) { // log.warn("there is no entry in " + tarGzFile); // } } catch (Exception e) { e.printStackTrace(); } finally { if (taris != null) { try { taris.close(); } catch (Exception ce) { taris = null; } } if (gis != null) { try { gis.close(); } catch (Exception ce) { gis = null; } } if (fis != null) { try { fis.close(); } catch (Exception ce) { fis = null; } } if (out != null) { try { out.close(); } catch (Exception ce) { out = null; } } } // return fileList; } /** * 解压rar * * @param sourceRar * @param destDir * @throws Exception */ public static void unrar(File sourceRar, File destDir) throws Exception { String name = sourceRar.getName().substring(0, sourceRar.getName().lastIndexOf(".")); List fileList = new ArrayList<>(); Archive archive = null; FileOutputStream fos = null; try { archive = new Archive(sourceRar); FileHeader fh = archive.nextFileHeader(); int count = 0; File destFileName = null; while (fh != null) { String compressFileName = null; if (fh.isUnicode()) { compressFileName = fh.getFileNameW().trim(); } else { compressFileName = fh.getFileNameString().trim(); } // String compressFileName = fh.getFileNameString().trim(); destFileName = new File( destDir.getAbsolutePath() + File.separatorChar + name + File.separatorChar + compressFileName); if (fh.isDirectory()) { if (!destFileName.exists()) { destFileName.mkdirs(); } fh = archive.nextFileHeader(); continue; } if (!destFileName.getParentFile().exists()) { destFileName.getParentFile().mkdirs(); } fos = new FileOutputStream(destFileName); archive.extractFile(fh, fos); fos.close(); fos = null; fh = archive.nextFileHeader(); } archive.close(); archive = null; } catch (Exception e) { throw e; } finally { if (fos != null) { try { fos.close(); fos = null; } catch (Exception e) { e.printStackTrace(); } } if (archive != null) { try { archive.close(); archive = null; } catch (Exception e) { e.printStackTrace(); } } } } /** * 解压Zip文件 * * @param path * 文件目录 */ public static void unZip(String path) { int count = -1; String savepath = ""; File file = null; InputStream is = null; FileOutputStream fos = null; BufferedOutputStream bos = null; Date date = new Date(); SimpleDateFormat s = new SimpleDateFormat("yyMMdd"); // System.out.println(s.format(date)); savepath = path.substring(0, path.lastIndexOf(".")) + s.format(date) + File.separator; // 保存解压文件目录 new File(savepath).mkdir(); // 创建保存目录 ZipFile zipFile = null; try { zipFile = new ZipFile(path, "utf-8"); // 解决中文乱码问题 Enumeration entries = zipFile.getEntries(); while (entries.hasMoreElements()) { byte buf[] = new byte[buffer]; ZipEntry entry = (ZipEntry) entries.nextElement(); String filename = entry.getName(); boolean ismkdir = false; if (filename.lastIndexOf("/") != -1) { // 检查此文件是否带有文件夹 ismkdir = true; } filename = savepath + filename; if (entry.isDirectory()) { // 如果是文件夹先创建 file = new File(filename); file.mkdirs(); continue; } file = new File(filename); if (!file.exists()) { // 如果是目录先创建 if (ismkdir) { new File(filename.substring(0, filename.lastIndexOf("/"))).mkdirs(); // 目录先创建 } } file.createNewFile(); // 创建文件 is = zipFile.getInputStream(entry); fos = new FileOutputStream(file); bos = new BufferedOutputStream(fos, buffer); while ((count = is.read(buf)) > -1) { bos.write(buf, 0, count); } bos.flush(); bos.close(); fos.close(); is.close(); } zipFile.close(); } catch (IOException ioe) { ioe.printStackTrace(); } finally { try { if (bos != null) { bos.close(); } if (fos != null) { fos.close(); } if (is != null) { is.close(); } if (zipFile != null) { zipFile.close(); } } catch (Exception e) { e.printStackTrace(); } } } }