java压缩解压缩rar、zip文件

来源https://www.open-open.com/lib/view/open1363592512046.html

被zip 折腾的要死，特意记录一下来，以后防翻车

package cn.com.servyou.nbxxh.wxadmin.common.utils.file;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;
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();}}}/* <!-- ant -->maven 坐标<dependency><groupId>org.apache.ant</groupId><artifactId>ant</artifactId><version>1.9.7</version></dependency>*/}

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