Java多层目录打包和解压代码(apache commons compress, io, lang)
package zip; import java.io.BufferedOutputStream; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStream; import java.util.Enumeration; import org.apache.commons.compress.archivers.zip.ZipArchiveEntry; import org.apache.commons.compress.archivers.zip.ZipArchiveOutputStream; import org.apache.commons.compress.archivers.zip.ZipFile; import org.apache.commons.io.FileUtils; import org.apache.commons.io.IOUtils; import org.apache.commons.lang.StringUtils; public class Main { public static void main(String[] args) throws FileNotFoundException, Exception { Main main = new Main("c:/test1.zip"); main.createZipOut(); main.packToolFiles("C:/test", ""); main.closeZipOut(); main = new Main("c:/test2.zip"); main.createZipOut(); main.packToolFiles("C:/test", "test"); main.closeZipOut(); Main.unZipToFolder("c:/test1.zip", "c:/test1"); Main.unZipToFolder("c:/test2.zip", "c:/test2"); } private OutputStream out = null; private BufferedOutputStream bos = null; private ZipArchiveOutputStream zaos = null; private String zipFileName = null; public Main(String zipname) { this.zipFileName = zipname; } public void createZipOut() throws FileNotFoundException, IOException { File f = new File(zipFileName); out = new FileOutputStream(f); bos = new BufferedOutputStream(out); zaos = new ZipArchiveOutputStream(bos); zaos.setEncoding("GBK"); } public void closeZipOut() throws Exception { zaos.flush(); zaos.close(); bos.flush(); bos.close(); out.flush(); out.close(); } /** * 把一个目录打包到zip文件中的某目录 * @param dirpath 目录绝对地址 * @param pathName zip中目录 */ public void packToolFiles(String dirpath, String pathName) throws FileNotFoundException, IOException { if (StringUtils.isNotEmpty(pathName)) { pathName = pathName + File.separator; } packToolFiles(zaos, dirpath, pathName); } /** * 把一个目录打包到一个指定的zip文件中 * @param dirpath 目录绝对地址 * @param pathName zip文件抽象地址 */ public void packToolFiles(ZipArchiveOutputStream zaos, String dirpath, String pathName) throws FileNotFoundException, IOException { ByteArrayOutputStream tempbaos = new ByteArrayOutputStream(); BufferedOutputStream tempbos = new BufferedOutputStream(tempbaos); File dir = new File(dirpath); //返回此绝对路径下的文件 File[] files = dir.listFiles(); if (files == null || files.length < 1) { return; } for (int i = 0; i < files.length; i++) { //判断此文件是否是一个文件夹 if (files[i].isDirectory()) { packToolFiles(zaos, files[i].getAbsolutePath(), pathName + files[i].getName() + File.separator); } else { zaos.putArchiveEntry(new ZipArchiveEntry(pathName + files[i].getName())); IOUtils.copy(new FileInputStream(files[i].getAbsolutePath()), zaos); zaos.closeArchiveEntry(); } } tempbaos.flush(); tempbaos.close(); tempbos.flush(); tempbos.close(); } /** * 把一个zip文件解压到一个指定的目录中 * @param zipfilename zip文件抽象地址 * @param outputdir 目录绝对地址 */ public static void unZipToFolder(String zipfilename, String outputdir) throws IOException { File zipfile = new File(zipfilename); if (zipfile.exists()) { outputdir = outputdir + File.separator; FileUtils.forceMkdir(new File(outputdir)); ZipFile zf = new ZipFile(zipfile, "GBK"); Enumeration zipArchiveEntrys = zf.getEntries(); while (zipArchiveEntrys.hasMoreElements()) { ZipArchiveEntry zipArchiveEntry = (ZipArchiveEntry) zipArchiveEntrys.nextElement(); if (zipArchiveEntry.isDirectory()) { FileUtils.forceMkdir(new File(outputdir + zipArchiveEntry.getName() + File.separator)); } else { IOUtils.copy(zf.getInputStream(zipArchiveEntry), FileUtils.openOutputStream(new File(outputdir + zipArchiveEntry.getName()))); } } } else { throw new IOException("指定的解压文件不存在:\t" + zipfilename); } } }
下载地址:http://mirror.bit.edu.cn/apache//commons/compress/binaries/commons-compress-1.8.1-bin.zip
Java多层目录打包和解压代码(apache commons compress, io, lang),布布扣,bubuko.com
时间: 2024-10-14 12:53:39