Android GZip的使用-开发中网络请求的压缩实例详解

  private String getJsonStringFromGZIP(HttpResponse response) {    String jsonString = null;    try {      InputStream is = response.getEntity().getContent();      BufferedInputStream bis = new BufferedInputStream(is);      bis.mark(2);      // 取前两个字节      byte[] header = new byte[2];      int result = bis.read(header);      // reset输入流到开始位置      bis.reset();      // 判断是否是GZIP格式      int headerData = getShort(header);      // Gzip 流 的前两个字节是 0x1f8b      if (result != -1 && headerData == 0x1f8b) {        LogUtil.d("HttpTask", " use GZIPInputStream ");        is = new GZIPInputStream(bis);      } else {        LogUtil.d("HttpTask", " not use GZIPInputStream");        is = bis;      }      InputStreamReader reader = new InputStreamReader(is, "utf-8");      char[] data = new char[100];      int readSize;      StringBuffer sb = new StringBuffer();      while ((readSize = reader.read(data)) > 0) {        sb.append(data, 0, readSize);      }      jsonString = sb.toString();      bis.close();      reader.close();    } catch (Exception e) {      LogUtil.e("HttpTask", e.toString(),e);    }     LogUtil.d("HttpTask", "getJsonStringFromGZIP net output : " + jsonString );    return jsonString;  }   private int getShort(byte[] data) {    return (int)((data[0]<<8) | data[1]&0xFF);  }