java压缩文件和解压文件

package cn.eeepay.pub.utils;import java.io.BufferedInputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.InputStream;import java.io.OutputStream;import java.util.ArrayList;import java.util.Arrays;import java.util.Enumeration;import java.util.List;import org.apache.tools.ant.Project;import org.apache.tools.ant.taskdefs.Expand;import org.apache.tools.zip.ZipEntry;import org.apache.tools.zip.ZipFile;import org.apache.tools.zip.ZipOutputStream;import cn.toruk.pub.Log;public class ZipUtils {/** * @param inputFileName *            输入一个文件夹 * @param zipFileName *            输出一个压缩文件夹，打包后文件名字 * @throws Exception */public static void zip(String inputFileName, String zipFileName)throws Exception {zip(zipFileName, new File(inputFileName));}private static void zip(String zipFileName, File inputFile)throws Exception {ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFileName));out.setEncoding("UTF-8");// 解决linux乱码 根据linux系统的实际编码设置,可以使用命令// vi/etc/sysconfig/i18n 查看linux的系统编码zip(out, inputFile, "");out.close();}private static void zip(ZipOutputStream out, File f, String base)throws Exception {if (f.isDirectory()) { // 判断是否为目录File[] fl = f.listFiles();// out.putNextEntry(new org.apache.tools.zip.ZipEntry(base + "/"));// out.putNextEntry(new ZipEntry(base + "/"));ZipEntry zipEntry = new ZipEntry(base+ System.getProperties().getProperty("file.separator"));zipEntry.setUnixMode(755);// 解决linux乱码out.putNextEntry(zipEntry);// base = base.length() == 0 ? "" : base + "/";base = base.length() == 0 ? "" : base+ System.getProperties().getProperty("file.separator");for (int i = 0; i < fl.length; i++) {zip(out, fl[i], base + fl[i].getName());}} else { // 压缩目录中的所有文件// out.putNextEntry(new org.apache.tools.zip.ZipEntry(base));ZipEntry zipEntry = new ZipEntry(base);zipEntry.setUnixMode(644);// 解决linux乱码out.putNextEntry(zipEntry);FileInputStream in = new FileInputStream(f);int b;while ((b = in.read()) != -1) {out.write(b);}in.close();}}public static void unzip(String sourceZip, String destDir) throws Exception {try {Project p = new Project();Expand e = new Expand();e.setProject(p);e.setSrc(new File(sourceZip));e.setOverwrite(false);e.setDest(new File(destDir));e.setEncoding("GBK");e.execute();} catch (Exception e) {throw e;}}public static void unZip(String zipFile, String outputFolder)throws Exception {Log.print("解压缩文件开始.........");byte[] buffer = new byte[1024];String[] fileTypes = new String[] { "gif", "jpg", "jpeg", "png", "bmp","txt", "xls", "zip" };// 允许解压出来的文件类型File folder = new File(outputFolder);if (!folder.exists()) {folder.mkdir();}java.util.zip.ZipInputStream zis = new java.util.zip.ZipInputStream(new FileInputStream(zipFile));java.util.zip.ZipEntry ze = null;while ((ze = zis.getNextEntry()) != null) {String fileName = ze.getName();File newFile = new File(outputFolder + File.separator + fileName);String fileExt = fileName.substring(fileName.lastIndexOf(".") + 1).toLowerCase();// 文件扩展名if (Arrays.<String> asList(fileTypes).contains(fileExt)) {new File(newFile.getParent()).mkdirs();FileOutputStream fos = new FileOutputStream(newFile);int len;while ((len = zis.read(buffer)) > 0) {fos.write(buffer, 0, len);}fos.close();} else {// 不允许解压出来的文件已文件夹形式展示newFile.mkdirs();}}zis.closeEntry();zis.close();Log.print("解压缩文件结束.........");}public static final int BUFFER = 1024;// 缓存大小/** * @Title: compress * @Description: 压缩处理 * @param * @return void */@SuppressWarnings("unchecked")public static void compress(String baseDir, String filePath)throws Exception {List fileList = getSubFiles(new File(baseDir));ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(filePath));ZipEntry ze = null;byte[] buf = new byte[BUFFER];int readLen = 0;for (int i = 0; i < fileList.size(); i++) {File f = (File) fileList.get(i);ze = new ZipEntry(getAbsFileName(baseDir, f));ze.setSize(f.length());ze.setTime(f.lastModified());zos.putNextEntry(ze);InputStream is = new BufferedInputStream(new FileInputStream(f));while ((readLen = is.read(buf, 0, BUFFER)) != -1) {zos.write(buf, 0, readLen);}is.close();}zos.close();}/** * @Title: decompress * @Description: 解压缩处理 * @param * @return void */public static void decompress(String filePath, String destDir)throws Exception {decompress(new File(filePath), destDir);}/** * @Title: decompress * @Description: 解压缩处理 * @param * @param zip * @param * @param destDir * @param * @throws Exception * @return void */@SuppressWarnings("unchecked")public static void decompress(File zip, String destDir) throws Exception {destDir = destDir.endsWith("//") ? destDir : destDir + "//";byte b[] = new byte[BUFFER];int length;ZipFile zipFile;zipFile = new ZipFile(zip);Enumeration enumeration = zipFile.getEntries();ZipEntry zipEntry = null;while (enumeration.hasMoreElements()) {zipEntry = (ZipEntry) enumeration.nextElement();File loadFile = new File(destDir + zipEntry.getName());if (zipEntry.isDirectory()) {// 这段都可以不要，因为每次都貌似从最底层开始遍历的loadFile.mkdirs();} else {if (!loadFile.getParentFile().exists())loadFile.getParentFile().mkdirs();OutputStream outputStream = new FileOutputStream(loadFile);InputStream inputStream = zipFile.getInputStream(zipEntry);while ((length = inputStream.read(b)) > 0)outputStream.write(b, 0, length);inputStream.close();outputStream.close();}}zipFile.close();}/** * 给定根目录，返回另一个文件名的相对路径，用于zip文件中的路径. *  * @param baseDir *            java.lang.String 根目录 * @param realFileName *            java.io.File 实际的文件名 * @return 相对文件名 */private static String getAbsFileName(String baseDir, File realFileName) {File real = realFileName;File base = new File(baseDir);String ret = real.getName();while (true) {real = real.getParentFile();if (real == null)break;if (real.equals(base))break;elseret = real.getName() + "/" + ret;}return real.getName() + "/" + ret;}/** * 取得指定目录下的所有文件列表，包括子目录 *  * @param baseDir *            File 指定的目录 * @return 包含java.io.File的List */@SuppressWarnings("unchecked")private static List getSubFiles(File baseDir) {List ret = new ArrayList();File[] tmp = baseDir.listFiles();for (int i = 0; i < tmp.length; i++) {if (tmp[i].isFile())ret.add(tmp[i]);if (tmp[i].isDirectory())ret.addAll(getSubFiles(tmp[i]));}return ret;}public static void main(String[] args) {try {// unZip("E:\\batch\\pics.zip", "E:\\batch");// ZipUtils.decompress("f:\\测试父目录.zip", "F:\\TDDOWNLOAD");;unzip("f:\\测试父目录.zip", "F:\\TDDOWNLOAD");} catch (Exception e) {e.printStackTrace();}}}