java的 zip 工具类，javazip工具类,import java.

java的 zip 工具类，javazip工具类,import java.

import java.io.*;import java.util.logging.Logger;import java.util.zip.*;/** * Created by sunyameng on 14-3-10. */public class ZipUtil {    private final static Logger logger = Logger.getLogger(ZipUtil.class.getName());    private static final int BUFFER = 1024 * 10;    /**     * 将指定目录压缩到和该目录同名的zip文件，自定义压缩路径     *     * @param sourceFilePath 目标文件路径     * @param zipFilePath    指定zip文件路径     * @return     */    public static boolean zip(String sourceFilePath, String zipFilePath,String zipFileName) {        boolean result = false;        File source = new File(sourceFilePath);        if (!source.exists()) {            logger.info(sourceFilePath + " doesn't exist.");            return result;        }        if (!source.isDirectory()) {            logger.info(sourceFilePath + " is not a directory.");            return result;        }        File zipFile = new File(zipFilePath + File.separator + zipFileName + ".zip");        if (zipFile.exists()) {            logger.info(zipFile.getName() + " is already exist.");            return result;        } else {            if (!zipFile.getParentFile().exists()) {                if (!zipFile.getParentFile().mkdirs()) {                    logger.info("cann't create file " + zipFileName);                    return result;                }            }        }        logger.info("creating zip file...");        FileOutputStream dest = null;        ZipOutputStream out = null;        try {            dest = new FileOutputStream(zipFile);            CheckedOutputStream checksum = new CheckedOutputStream(dest, new Adler32());            out = new ZipOutputStream(new BufferedOutputStream(checksum));            out.setMethod(ZipOutputStream.DEFLATED);            compress(source, out, source.getName());            result = true;        } catch (FileNotFoundException e) {            e.printStackTrace();        } finally {            if (out != null) {                try {                    out.closeEntry();                } catch (IOException e) {                    e.printStackTrace();                }                try {                    out.close();                } catch (IOException e) {                    e.printStackTrace();                }            }        }        if (result) {            logger.info("done.");        } else {            logger.info("fail.");        }        return result;    }    private static void compress(File file, ZipOutputStream out, String mainFileName) {        int index = file.getAbsolutePath().indexOf(mainFileName);        String entryName = file.getAbsolutePath().substring(index);        //System.out.println(entryName);        if (file.isFile()) {            FileInputStream fi = null;            BufferedInputStream origin = null;            try {                fi = new FileInputStream(file);                origin = new BufferedInputStream(fi, BUFFER);                ZipEntry entry = new ZipEntry(entryName);                out.putNextEntry(entry);                byte[] data = new byte[BUFFER];                int count;                while ((count = origin.read(data, 0, BUFFER)) != -1) {                    out.write(data, 0, count);                }            } catch (FileNotFoundException e) {                e.printStackTrace();            } catch (IOException e) {                e.printStackTrace();            } finally {                if (origin != null) {                    try {                        origin.close();                    } catch (IOException e) {                        e.printStackTrace();                    }                }            }        } else if (file.isDirectory()) {            try {                out.putNextEntry(new ZipEntry(entryName+File.separator));            } catch (IOException e) {                e.printStackTrace();            }            File[] fs = file.listFiles();            if (fs != null && fs.length > 0) {                for (File f : fs) {                    compress(f, out, mainFileName);                }            }        }    }    /**     * 将zip文件解压到指定的目录，该zip文件必须是使用该类的zip方法压缩的文件     *     * @param zipFile   要解压的zip文件     * @param destPath  指定解压到的目录     * @return     */    public static boolean unzip(File zipFile, String destPath) {        boolean result = false;        if (!zipFile.exists()) {            logger.info(zipFile.getName() + " doesn't exist.");            return result;        }        File target = new File(destPath);        if (!target.exists()) {            if (!target.mkdirs()) {                logger.info("cann't create file " + target.getName());                return result;            }        }        String mainFileName = zipFile.getName().replace(".zip", "");        File targetFile = new File(destPath + File.separator + mainFileName);        if (targetFile.exists()) {            logger.info(targetFile.getName() + " already exist.");            return result;        }        ZipInputStream zis = null;        logger.info("start unzip file ...");        try {            FileInputStream fis = new FileInputStream(zipFile);            CheckedInputStream checksum = new CheckedInputStream(fis, new Adler32());            zis = new ZipInputStream(new BufferedInputStream(checksum));            ZipEntry entry;            while ((entry = zis.getNextEntry()) != null) {                int count;                byte data[] = new byte[BUFFER];                String entryName = entry.getName();                //logger.info(entryName);                String newEntryName = destPath + File.separator + entryName;                newEntryName=newEntryName.replaceAll("\\\\", "/");                File f = new File(newEntryName);                if(newEntryName.endsWith("/")){                    if(!f.exists()){                        if(!f.mkdirs()) {                            throw new RuntimeException("can't create directory " + f.getName());                        }                    }                }else{                    File temp=f.getParentFile();                    if (!temp.exists()) {                        if (!temp.mkdirs()) {                            throw new RuntimeException("create file " + temp.getName() + " fail");                        }                    }                    FileOutputStream fos = new FileOutputStream(f);                    BufferedOutputStream dest = new BufferedOutputStream(fos, BUFFER);                    while ((count = zis.read(data, 0, BUFFER)) != -1) {                        dest.write(data, 0, count);                    }                    dest.flush();                    dest.close();                }            }            result = true;        } catch (FileNotFoundException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        } finally {            if (zis != null) {                try {                    zis.close();                } catch (IOException e) {                    e.printStackTrace();                }            }        }        if (result) {            logger.info("done.");        } else {            logger.info("fail.");        }        return result;    }    public static void main(String[] args) throws IOException {//        String path="D:\\temp\\B";//        ZipUtil.zip(path,"d:/temp/c","anhuigs123");        String zipfile ="D:\\temp\\c\\B.zip";        File zipFile = new File(zipfile);        String output="D:\\temp\\c";        ZipUtil.unzip(zipFile, output);    }}