/**
   * 
   * @param inputByte
   *      待解壓縮的字節(jié)數(shù)組
   * @return 解壓縮后的字節(jié)數(shù)組
   * @throws IOException
   */
  public static byte[] uncompress(byte[] inputByte) throws IOException {
    int len = 0;
    Inflater infl = new Inflater();
    infl.setInput(inputByte);
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    byte[] outByte = new byte[1024];
    try {
      while (!infl.finished()) {
        // 解壓縮并將解壓縮后的內(nèi)容輸出到字節(jié)輸出流bos中
        len = infl.inflate(outByte);
        if (len == 0) {
          break;
        }
        bos.write(outByte, 0, len);
      }
      infl.end();
    } catch (Exception e) {
      //
    } finally {
      bos.close();
    }
    return bos.toByteArray();
  }

  /**
   * 壓縮.
   * 
   * @param inputByte
   *      待壓縮的字節(jié)數(shù)組
   * @return 壓縮后的數(shù)據(jù)
   * @throws IOException
   */
  public static byte[] compress(byte[] inputByte) throws IOException {
    int len = 0;
    Deflater defl = new Deflater();
    defl.setInput(inputByte);
    defl.finish();
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    byte[] outputByte = new byte[1024];
    try {
      while (!defl.finished()) {
        // 壓縮并將壓縮后的內(nèi)容輸出到字節(jié)輸出流bos中
        len = defl.deflate(outputByte);
        bos.write(outputByte, 0, len);
      }
      defl.end();
    } finally {
      bos.close();
    }
    return bos.toByteArray();
  }

  public static void main(String[] args) {
    try {
      FileInputStream fis = new FileInputStream("D:\\testdeflate.txt");
      int len = fis.available();
      byte[] b = new byte[len];
      fis.read(b);
      byte[] bd = compress(b);
      // 為了壓縮后的內(nèi)容能夠在網(wǎng)絡上傳輸，一般采用Base64編碼
      String encodestr = Base64.encodeBase64String(bd);
      byte[] bi = uncompress(Base64.decodeBase64(encodestr));
      FileOutputStream fos = new FileOutputStream("D:\\testinflate.txt");
      fos.write(bi);
      fos.flush();
      fos.close();
      fis.close();
    } catch (Exception e) {
      //
    }
  }