使用7z完成文件压缩与解压缩

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/**  * <p> * 使用7z进行压缩解压的工具类 * </p> * <p><b>Copyright: All Rights Reserved (c) 2015-2016</b></p> * <p><b>Company:Travelsky</b></p> * @ClassName: Zip7ZUtil  * @date 2015-5-14 下午2:06:25  *   */public class Zip7zUtil {    private static String exePath=SysPropUtil.getValue("7z.path");    private static Logger logger = LogManager.getLogger(Zip7zUtil.class);    public static void zip(String srcRootPath,String zipFile) {        String cmd = "7z a -tzip " + zipFile +  " " + srcRootPath;        try {            Runtime.getRuntime().exec(cmd);        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }    /**     * 同步解压     * @param zipFilePath     * @param unZipPath     */    /*public static boolean syncUnzip(String zipFilePath,String unZipPath) {        logger.info("unzip "+zipFilePath+" to "+unZipPath);        boolean result;        String cmd = exePath+"\\7z x -o" + unZipPath + " -y " + zipFilePath;        logger.info("do syncUnzip exec : "+cmd);        try {            Process p = Runtime.getRuntime().exec(cmd);            BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));            String line = null;            while (true) {                try {                    line = br.readLine();                    if (line == null) {                        result = true;                        break;                    }else{                        System.out.println(line);                    }                } catch (IOException e) {                    // TODO Auto-generated catch block                    e.printStackTrace();                    logger.error(" syncUnzip exception : "+e);                    result = false;                }            }        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();            logger.error(" syncUnzip exception : "+e);            result = false;        }        return result;    }*/    public static boolean syncUnzip(String zipFilePath,String unZipPath) {        logger.info("unzip "+zipFilePath+" to "+unZipPath);        boolean result;        String cmd = exePath+"\\7z x -o" + unZipPath + " -y " + zipFilePath;        logger.info("do syncUnzip exec : "+cmd);        try {            File zipFile=new File(zipFilePath);            long zipSize=zipFile.length();            long unzipSize=0;            Process p = Runtime.getRuntime().exec(cmd);            BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));            String line = null;            while (true) {                try {                    line = br.readLine();                    logger.info("7z info : " + line);                    if (line != null) {                        String[] arr=line.split("=");                        if (arr.length==2) {                            if (arr[0].trim().equals("Physical Size")) {                                zipSize=Long.parseLong(arr[1].trim());                            }                        }                        String[] arr2=line.split(":");                        if (arr2[0].trim().equals("Compressed")) {                            unzipSize=Long.parseLong(arr2[1].trim());                        }                    }else{                        logger.info("unzipSize = "+unzipSize+" , zipSize = "+zipSize);                        if (unzipSize==zipSize) {                            result = true;                        }else{                            result = false;                            logger.error(" syncUnzip "+zipFilePath+" to "+unZipPath+" failed ! ");                        }                        break;                    }                } catch (IOException e) {                    // TODO Auto-generated catch block                    e.printStackTrace();                    logger.error(" syncUnzip exception : "+e);                    result = false;                }            }        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();            logger.error(" syncUnzip exception : "+e);            result = false;        }        return result;    }    /**     * 异步解压，会通过listener回调结果     * @param zipFilePath     * @param unZipPath     * @param listener     */    public static void asyncUnzip(String zipFilePath,String unZipPath,final ICallbackListener listener) {        if (zipFilePath == null || zipFilePath.equals("") || unZipPath == null || unZipPath.equals("")) {            listener.callback("fail");            return;        }        String cmd = exePath+"\\7z x -o" + unZipPath + " -y -tzip " + zipFilePath;        try {            final Process p = Runtime.getRuntime().exec(cmd);            if (listener != null) {                new Thread() {                    public void run() {                        BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));                        String line = null;                        while (true) {                            try {                                line = br.readLine().trim();                                if (line == null) {                                    listener.callback("OK");                                    break;                                }                            } catch (IOException e) {                                // TODO Auto-generated catch block                                e.printStackTrace();                                listener.callback("fail");                            }                        }                    }                };            }        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();            listener.callback("fail");        }    }}
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