java使用tar算法压缩解压缩文件、数据流、byte[]字节数组

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全栈工程师开发手册（作者：栾鹏）

java教程全解

需要添加org.apache.commons.compress包，下载

测试代码

public static void main(String[] args) {        try {            String inputStr="111111111111111111111111111111111";            //压缩文件测试            byte[] contentOfEntry = inputStr.getBytes();              FileOutputStream fos = new FileOutputStream("test.txt");              fos.write(contentOfEntry);              fos.flush();              fos.close();              //压缩文件            TarUtils.archive("test.txt");              //解压缩文件            TarUtils.dearchive("test.txt" + ".tar");              File file = new File("test.txt");              FileInputStream fis = new FileInputStream(file);              DataInputStream dis = new DataInputStream(fis);              byte[] data = new byte[(int) file.length()];              dis.readFully(data);              fis.close();              String outputStr = new String(data);            System.out.println(outputStr);            //测试压缩目录            String path = "d:/srcdir";              TarUtils.archive(path);              TarUtils.dearchive(path + ".tar", "d:/desdir");          } catch (Exception e) {            e.printStackTrace();        }    }

tar压缩解压缩工具类的实现

package com.lp.app.io;import java.io.BufferedInputStream;  import java.io.BufferedOutputStream;  import java.io.DataInputStream;import java.io.File;  import java.io.FileInputStream;  import java.io.FileOutputStream;  import org.apache.commons.compress.archivers.tar.TarArchiveEntry;  import org.apache.commons.compress.archivers.tar.TarArchiveOutputStream;  import org.apache.commons.compress.archivers.tar.TarArchiveInputStream;  //TAR工具 public class TarUtils {      private static final String BASE_DIR = "";      // 符号"/"用来作为目录标识判断符      private static final String PATH = "/";      //归档     public static void archive(String srcPath, String destPath)  throws Exception {          File srcFile = new File(srcPath);          archive(srcFile, destPath);      }      //归档     public static void archive(File srcFile, File destFile) throws Exception {          TarArchiveOutputStream taos = new TarArchiveOutputStream(new FileOutputStream(destFile));          archive(srcFile, taos, BASE_DIR);          taos.flush();          taos.close();      }      //归档     public static void archive(File srcFile) throws Exception {          String name = srcFile.getName();          String basePath = srcFile.getParent();          String destPath = basePath +"\\"+ name + ".tar";          if (basePath==null) {            destPath = name + ".tar";        }        archive(srcFile, destPath);      }      //归档文件     public static void archive(File srcFile, String destPath) throws Exception {          archive(srcFile, new File(destPath));      }      //归档     public static void archive(String srcPath) throws Exception {          File srcFile = new File(srcPath);          archive(srcFile);      }      //归档     private static void archive(File srcFile, TarArchiveOutputStream taos,  String basePath) throws Exception {          if (srcFile.isDirectory()) {              archiveDir(srcFile, taos, basePath);          } else {              archiveFile(srcFile, taos, basePath);          }      }      //目录归档     private static void archiveDir(File dir, TarArchiveOutputStream taos,  String basePath) throws Exception {          File[] files = dir.listFiles();          if (files.length < 1) {              TarArchiveEntry entry = new TarArchiveEntry(basePath+ dir.getName() + PATH);              taos.putArchiveEntry(entry);              taos.closeArchiveEntry();          }          for (File file : files) {              // 递归归档              archive(file, taos, basePath + dir.getName() + PATH);          }      }      //数据归档      private static void archiveFile(File file, TarArchiveOutputStream taos,   String dir) throws Exception {          /**          * 归档内文件名定义          *           * <pre>          * 如果有多级目录，那么这里就需要给出包含目录的文件名          * 如果用WinRAR打开归档包，中文名将显示为乱码          * </pre>          */          TarArchiveEntry entry = new TarArchiveEntry(dir + file.getName());          entry.setSize(file.length());          taos.putArchiveEntry(entry);          BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));          int count;          byte data[] = new byte[1024];          while ((count = bis.read(data, 0, 1024)) != -1) {              taos.write(data, 0, count);          }          bis.close();          taos.closeArchiveEntry();      }      //解归档    public static void dearchive(File srcFile) throws Exception {          String basePath = srcFile.getParent();        if (basePath==null) {            basePath="";        }        dearchive(srcFile, basePath);      }      //解归档     public static void dearchive(File srcFile, File destFile) throws Exception {          TarArchiveInputStream tais = new TarArchiveInputStream(new FileInputStream(srcFile));          dearchive(destFile, tais);          tais.close();      }      //解归档     public static void dearchive(File srcFile, String destPath)throws Exception {          dearchive(srcFile, new File(destPath));      }      //文件 解归档     private static void dearchive(File destFile, TarArchiveInputStream tais)  throws Exception {          TarArchiveEntry entry = null;          while ((entry = tais.getNextTarEntry()) != null) {              // 文件              String dir = destFile.getPath() + File.separator + entry.getName();              File dirFile = new File(dir);              // 文件检查              fileProber(dirFile);              if (entry.isDirectory()) {                  dirFile.mkdirs();              } else {                  dearchiveFile(dirFile, tais);              }          }      }      //文件 解归档     public static void dearchive(String srcPath) throws Exception {          File srcFile = new File(srcPath);          dearchive(srcFile);      }      //文件 解归档     public static void dearchive(String srcPath, String destPath)  throws Exception {          File srcFile = new File(srcPath);          dearchive(srcFile, destPath);      }      //文件解归档      private static void dearchiveFile(File destFile, TarArchiveInputStream tais)  throws Exception {          BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(destFile));          int count;          byte data[] = new byte[1024];          while ((count = tais.read(data, 0, 1024)) != -1) {              bos.write(data, 0, count);          }          bos.close();      }      //文件探针 ,当父目录不存在时，创建目录！       private static void fileProber(File dirFile) {          File parentFile = dirFile.getParentFile();          if (!parentFile.exists()) {              // 递归寻找上级目录              fileProber(parentFile);              parentFile.mkdir();          }      }  }

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