读书人

java压缩解压缩rar、zip资料

发布时间: 2013-03-21 10:08:17 作者: rapoo

java压缩解压缩rar、zip文件

package com.test;import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import org.apache.tools.tar.TarEntry;import org.apache.tools.tar.TarOutputStream;import org.apache.tools.zip.ZipEntry;import org.apache.tools.zip.ZipFile;import org.apache.tools.zip.ZipOutputStream;import de.innosystec.unrar.Archive;/**  * @author Every E-mail/MSN:mwgjkf@hotmail.com *   QQ:30130942 * @version 创建时间:Feb 26, 2009 6:01:11 PM  * 类说明:压缩、解压文件公用类 * */public class Test {private static final int BUFFEREDSIZE = 1024;public Test() {// TODO Auto-generated constructor stub}/**     * 解压zip格式的压缩文件到当前文件夹     * @param zipFileName     * @throws Exception     */    @SuppressWarnings("unchecked")    public synchronized void unzipFile(String zipFileName) throws Exception {    try {    File f = new File(zipFileName);    ZipFile zipFile = new ZipFile(zipFileName);    if((!f.exists()) && (f.length() <= 0)) {    throw new Exception("要解压的文件不存在!");    }    String strPath, gbkPath, strtemp;    File tempFile = new File(f.getParent());    strPath = tempFile.getAbsolutePath();    java.util.Enumeration e = zipFile.getEntries();    while(e.hasMoreElements()){    org.apache.tools.zip.ZipEntry zipEnt = (ZipEntry) e.nextElement();    gbkPath=zipEnt.getName();    if(zipEnt.isDirectory()){    strtemp = strPath + "/" + gbkPath;    File dir = new File(strtemp);    dir.mkdirs();    continue;    } else {    //读写文件    InputStream is = zipFile.getInputStream(zipEnt);    BufferedInputStream bis = new BufferedInputStream(is);    gbkPath=zipEnt.getName();    strtemp = strPath + "/" + gbkPath;    //建目录    String strsubdir = gbkPath;    for(int i = 0; i < strsubdir.length(); i++) {    if(strsubdir.substring(i, i + 1).equalsIgnoreCase("/")) {    String temp = strPath + "/" + strsubdir.substring(0, i);    File subdir = new File(temp);    if(!subdir.exists())    subdir.mkdir();    }    }    FileOutputStream fos = new FileOutputStream(strtemp);    BufferedOutputStream bos = new BufferedOutputStream(fos);    int c;    while((c = bis.read()) != -1) {    bos.write((byte) c);    }    bos.close();    fos.close();    }    }    } catch(Exception e) {    e.printStackTrace();    throw e;    }    }    /** * 解压zip格式的压缩文件到指定位置 * @param zipFileName 压缩文件 * @param extPlace 解压目录 * @throws Exception */@SuppressWarnings("unchecked")public synchronized void unzip(String zipFileName, String extPlace) throws Exception {try {    (new File(extPlace)).mkdirs();    File f = new File(zipFileName);    ZipFile zipFile = new ZipFile(zipFileName);    if((!f.exists()) && (f.length() <= 0)) {    throw new Exception("要解压的文件不存在!");    }    String strPath, gbkPath, strtemp;    File tempFile = new File(extPlace);    strPath = tempFile.getAbsolutePath();    java.util.Enumeration e = zipFile.getEntries();    while(e.hasMoreElements()){    org.apache.tools.zip.ZipEntry zipEnt = (ZipEntry) e.nextElement();    gbkPath=zipEnt.getName();    if(zipEnt.isDirectory()){    strtemp = strPath + File.separator + gbkPath;    File dir = new File(strtemp);    dir.mkdirs();    continue;    } else {    //读写文件    InputStream is = zipFile.getInputStream(zipEnt);    BufferedInputStream bis = new BufferedInputStream(is);    gbkPath=zipEnt.getName();    strtemp = strPath + File.separator + gbkPath;    //建目录    String strsubdir = gbkPath;    for(int i = 0; i < strsubdir.length(); i++) {    if(strsubdir.substring(i, i + 1).equalsIgnoreCase("/")) {    String temp = strPath + File.separator + strsubdir.substring(0, i);    File subdir = new File(temp);    if(!subdir.exists())    subdir.mkdir();    }    }    FileOutputStream fos = new FileOutputStream(strtemp);    BufferedOutputStream bos = new BufferedOutputStream(fos);    int c;    while((c = bis.read()) != -1) {    bos.write((byte) c);    }    bos.close();    fos.close();    }    }    } catch(Exception e) {    e.printStackTrace();    throw e;    }}/** * 解压zip格式的压缩文件到指定位置 * @param zipFileName 压缩文件 * @param extPlace 解压目录 * @throws Exception */@SuppressWarnings("unchecked")public synchronized void unzip(String zipFileName, String extPlace,boolean whether) throws Exception {try {    (new File(extPlace)).mkdirs();    File f = new File(zipFileName);    ZipFile zipFile = new ZipFile(zipFileName);    if((!f.exists()) && (f.length() <= 0)) {    throw new Exception("要解压的文件不存在!");    }    String strPath, gbkPath, strtemp;    File tempFile = new File(extPlace);    strPath = tempFile.getAbsolutePath();    java.util.Enumeration e = zipFile.getEntries();    while(e.hasMoreElements()){    org.apache.tools.zip.ZipEntry zipEnt = (ZipEntry) e.nextElement();    gbkPath=zipEnt.getName();    if(zipEnt.isDirectory()){    strtemp = strPath + File.separator + gbkPath;    File dir = new File(strtemp);    dir.mkdirs();    continue;    } else {    //读写文件    InputStream is = zipFile.getInputStream(zipEnt);    BufferedInputStream bis = new BufferedInputStream(is);    gbkPath=zipEnt.getName();    strtemp = strPath + File.separator + gbkPath;    //建目录    String strsubdir = gbkPath;    for(int i = 0; i < strsubdir.length(); i++) {    if(strsubdir.substring(i, i + 1).equalsIgnoreCase("/")) {    String temp = strPath + File.separator + strsubdir.substring(0, i);    File subdir = new File(temp);    if(!subdir.exists())    subdir.mkdir();    }    }    FileOutputStream fos = new FileOutputStream(strtemp);    BufferedOutputStream bos = new BufferedOutputStream(fos);    int c;    while((c = bis.read()) != -1) {    bos.write((byte) c);    }    bos.close();    fos.close();    }    }    } catch(Exception e) {    e.printStackTrace();    throw e;    }}/** * 压缩zip格式的压缩文件 * @param inputFilename 压缩的文件或文件夹及详细路径 * @param zipFilename 输出文件名称及详细路径 * @throws IOException */public synchronized void zip(String inputFilename, String zipFilename) throws IOException {zip(new File(inputFilename), zipFilename);}/** * 压缩zip格式的压缩文件 * @param inputFile 需压缩文件 * @param zipFilename 输出文件及详细路径 * @throws IOException */public synchronized void zip(File inputFile, String zipFilename) throws IOException {ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFilename));try {zip(inputFile, out, "");} catch (IOException e) {throw e;} finally {out.close();}}/** * 压缩zip格式的压缩文件 * @param inputFile 需压缩文件 * @param out 输出压缩文件 * @param base 结束标识 * @throws IOException */@SuppressWarnings("unused")private synchronized void zip(File inputFile, ZipOutputStream out, String base) throws IOException {if (inputFile.isDirectory()) {File[] inputFiles = inputFile.listFiles();out.putNextEntry(new ZipEntry(base + "/"));base = base.length() == 0 ? "" : base + "/";for (int i = 0; i < inputFiles.length; i++) {zip(inputFiles[i], out, base + inputFiles[i].getName());}} else {if (base.length() > 0) {out.putNextEntry(new ZipEntry(base));} else {out.putNextEntry(new ZipEntry(inputFile.getName()));}FileInputStream in = new FileInputStream(inputFile);try {int c;byte[] by = new byte[BUFFEREDSIZE];while ((c = in.read(by)) != -1) {out.write(by, 0, c);}} catch (IOException e) {throw e;} finally {in.close();}}}    /**     * 解压tar格式的压缩文件到指定目录下     * @param tarFileName 压缩文件     * @param extPlace 解压目录     * @throws Exception     */public synchronized void untar(String tarFileName, String extPlace) throws Exception{}/** * 压缩tar格式的压缩文件 * @param inputFilename 压缩文件 * @param tarFilename 输出路径 * @throws IOException */public synchronized void tar(String inputFilename, String tarFilename) throws IOException{tar(new File(inputFilename), tarFilename);}/** * 压缩tar格式的压缩文件 * @param inputFile 压缩文件 * @param tarFilename 输出路径 * @throws IOException */public synchronized void tar(File inputFile, String tarFilename) throws IOException{TarOutputStream out = new TarOutputStream(new FileOutputStream(tarFilename));try {tar(inputFile, out, "");} catch (IOException e) {throw e;} finally {out.close();}}/** * 压缩tar格式的压缩文件 * @param inputFile 压缩文件 * @param out 输出文件  * @param base 结束标识 * @throws IOException */@SuppressWarnings("unused")private synchronized void tar(File inputFile, TarOutputStream out, String base) throws IOException {if (inputFile.isDirectory()) {File[] inputFiles = inputFile.listFiles();out.putNextEntry(new TarEntry(base + "/"));base = base.length() == 0 ? "" : base + "/";for (int i = 0; i < inputFiles.length; i++) {tar(inputFiles[i], out, base + inputFiles[i].getName());}} else {if (base.length() > 0) {out.putNextEntry(new TarEntry(base));} else {out.putNextEntry(new TarEntry(inputFile.getName()));}FileInputStream in = new FileInputStream(inputFile);try {int c;byte[] by = new byte[BUFFEREDSIZE];while ((c = in.read(by)) != -1) {out.write(by, 0, c);}} catch (IOException e) {throw e;} finally {in.close();}}} /**     * 解压rar格式的压缩文件到指定目录下     * @param rarFileName 压缩文件     * @param extPlace 解压目录     * @throws Exception     */public synchronized void unrar(String rarFileName, String extPlace) throws Exception{try {(new File(extPlace)).mkdirs();// 构建测解压缩类Archive archive = new Archive();archive.setEnabledLog(false); //不输出日志// 设置rar文件archive.setFile(rarFileName);archive.setExtractPath(extPlace);archive.extractAllFile();} catch (Exception e) {// TODO: handle exception}}/** * 执行实例 * @param args */public static void main(String[] args) throws Exception {Test decompression=new Test();//decompression.unzipFile("d:/Inetpub.zip");//decompression.unzip("d:/Inetpub.zip","d://Inetpub");//decompression.zip("c:/Inetpub", "c:/Inetpub.zip");decompression.unrar("d:/FSCapture62.rar", "d:/FSCapture62");}}

读书人网 >编程

热点推荐