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    java zip批量压缩
    发布时间: 2020-06-19 浏览次数:
    /**
     * java zip批量压缩
     *
     * @param files 多文件
     * @param zipFilePath 目标压缩文件路径
     * @throws IOException
     */
    
    static final int BUFFER = 8192;
    
    private File zipFile= new File("C:\\iauto\\svn_project\\test_windows_test2\\11.zip");
    
    
    public void compress(String... pathName) {
        ZipOutputStream out = null;
        try {
    
            FileOutputStream fileOutputStream = new FileOutputStream(zipFile);
            CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream,
                    new CRC32());
            out = new ZipOutputStream(cos);
            String basedir = "";
            for (int i=0;i<pathName.length;i++){
                compress(new File(pathName[i]), out, basedir);
            }
            out.close();
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
    public void compress(String srcPathName) {
        File file = new File(srcPathName);
        if (!file.exists()){
            throw new RuntimeException(srcPathName + "不存在!");
        }
        try {
            FileOutputStream fileOutputStream = new FileOutputStream(zipFile);
            CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream,
                    new CRC32());
            ZipOutputStream out = new ZipOutputStream(cos);
            String basedir = "";
            compress(file, out, basedir);
            out.close();
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
    
    private void compress(File file, ZipOutputStream out, String basedir) {
        /* 判断是目录还是文件 */
        if (file.isDirectory()) {
            System.out.println("压缩:" + basedir + file.getName());
            this.compressDirectory(file, out, basedir);
        } else {
            System.out.println("压缩:" + basedir + file.getName());
            this.compressFile(file, out, basedir);
        }
    }
    
    /** 压缩一个目录 */
    private void compressDirectory(File dir, ZipOutputStream out, String basedir) {
        if (!dir.exists())
           { return;}
    
        File[] files = dir.listFiles();
        for (int i = 0; i < files.length; i++) {
            /* 递归 */
            compress(files[i], out, basedir + dir.getName() + "/");
        }
    }
    
    /** 压缩一个文件 */
    private void compressFile(File file, ZipOutputStream out, String basedir) {
        if (!file.exists()) {
            return;
        }
        try {
            BufferedInputStream bis = new BufferedInputStream(
                    new FileInputStream(file));
            ZipEntry entry = new ZipEntry(basedir + file.getName());
            out.putNextEntry(entry);
            int count;
            byte data[] = new byte[BUFFER];
            while ((count = bis.read(data, 0, BUFFER)) != -1) {
                out.write(data, 0, count);
            }
            bis.close();
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
    
    //调用
    ServicePP10 zc = new ServicePP10();
    zc.compress("C:\\\\iauto\\\\svn_project\\\\test_windows_test2\\\\_Myeclipse.rar","C:\\iauto\\svn_project\\test_windows_test2\\asas");


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