压缩工具类，提供压缩文件、解压文件的方法。

 

源码如下：(点击下载 -  、、、、)

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 java.util.Enumeration;import org.apache.commons.io.FilenameUtils;import org.apache.commons.io.IOUtils;import org.apache.commons.lang.ArrayUtils;import org.apache.commons.lang.StringUtils;import org.apache.tools.zip.ZipEntry;import org.apache.tools.zip.ZipFile;import org.apache.tools.zip.ZipOutputStream;/** * 压缩工具类 *  */public class ZipUtils {    private static final String DEFAULT_CHARSET = "UTF-8";    /**     * 压缩文件夹     *     * @param zipFileName     *            打包后文件的名称，含路径     * @param sourceFolder     *            需要打包的文件夹或者文件的路径     * @param zipPathName     *            打包目的文件夹名,为空则表示直接打包到根     */    public static void zip(String zipFileName, String sourceFolder, String zipPathName) throws Exception {        ZipOutputStream out = null;        try {            File zipFile = new File(zipFileName);            FolderUtils.mkdirs(zipFile.getParent());            out = new ZipOutputStream(zipFile);            out.setEncoding(DEFAULT_CHARSET);            if (StringUtils.isNotBlank(zipPathName)) {                zipPathName = FilenameUtils.normalizeNoEndSeparator(zipPathName, true) + "/";            } else {                zipPathName = "";            }            zip(out, sourceFolder, zipPathName);        } catch (IOException e) {            e.printStackTrace();            throw new Exception(e);        } finally {            IOUtils.closeQuietly(out);        }    }    /**     * 压缩文件夹     *     * @param zipFile     *            a {
    @link java.lang.String} object.     * @param source     *            a {
    @link java.lang.String} object.     */    public static void zip(String zipFile, String source) throws Exception {        File file = new File(source);        zip(zipFile, source, file.isFile() ? StringUtils.EMPTY : file.getName());    }    /**     * 压缩文件夹     *     * @param zipFile     *            a {
    @link java.io.File} object.     * @param source     *            a {
    @link java.io.File} object.     */    public static void zip(File zipFile, File source) throws Exception {        zip(zipFile.getAbsolutePath(), source.getAbsolutePath());    }    private static void zip(ZipOutputStream zos, String file, String pathName) throws IOException {        File file2zip = new File(file);        if (file2zip.isFile()) {            zos.putNextEntry(new ZipEntry(pathName + file2zip.getName()));            IOUtils.copy(new FileInputStream(file2zip.getAbsolutePath()), zos);            zos.flush();            zos.closeEntry();        } else {            File[] files = file2zip.listFiles();            if (ArrayUtils.isNotEmpty(files)) {                for (File f : files) {                    if (f.isDirectory()) {                        zip(zos, FilenameUtils.normalizeNoEndSeparator(f.getAbsolutePath(), true),                                 FilenameUtils.normalizeNoEndSeparator(pathName + f.getName(), true) + "/");                    } else {                        zos.putNextEntry(new ZipEntry(pathName + f.getName()));                        IOUtils.copy(new FileInputStream(f.getAbsolutePath()), zos);                        zos.flush();                        zos.closeEntry();                    }                }            }        }    }    /**     * 解压     *     * @param fromZipFile     *            zip文件路径     * @param unzipPath     *            解压路径     */    @SuppressWarnings("unchecked")    public static final void unzip(String fromZipFile, String unzipPath) throws Exception {        FileOutputStream fos = null;        InputStream is = null;        String path1 = StringUtils.EMPTY;        String tempPath = StringUtils.EMPTY;        if (!new File(unzipPath).exists()) {            new File(unzipPath).mkdir();        }        ZipFile zipFile = null;        try {            zipFile = new ZipFile(fromZipFile, DEFAULT_CHARSET);        } catch (IOException e1) {            e1.printStackTrace();            throw new Exception(e1);        }        File temp = new File(unzipPath);        String strPath = temp.getAbsolutePath();        Enumeration
     
       enu = zipFile.getEntries();        ZipEntry zipEntry = null;        while (enu.hasMoreElements()) {            zipEntry = (ZipEntry) enu.nextElement();            path1 = zipEntry.getName();            if (zipEntry.isDirectory()) {                tempPath = FilenameUtils.normalizeNoEndSeparator(strPath + File.separator + path1, true);                File dir = new File(tempPath);                dir.mkdirs();                continue;            } else {                BufferedInputStream bis = null;                BufferedOutputStream bos = null;                try {                    is = zipFile.getInputStream(zipEntry);                    bis = new BufferedInputStream(is);                    path1 = zipEntry.getName();                    tempPath = FilenameUtils.normalizeNoEndSeparator(strPath + File.separator + path1, true);                    FolderUtils.mkdirs(new File(tempPath).getParent());                    fos = new FileOutputStream(tempPath);                    bos = new BufferedOutputStream(fos);                    IOUtils.copy(bis, bos);                } catch (IOException e) {                    e.printStackTrace();                    throw new Exception(e);                } finally {                    IOUtils.closeQuietly(bis);                    IOUtils.closeQuietly(bos);                    IOUtils.closeQuietly(is);                    IOUtils.closeQuietly(fos);                }            }        }    }}