压缩工具类 - ZipUtils.java
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 - ZipUtils.java 、FolderUtils.java、ant-1.7.0.jar、commons-io-2.4.jar、commons-lang-2.6.jar)
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<ZipEntry> 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); } } } } }
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