web压缩gzip响应

String data = "ggrgrgw4gergergregerge";

byte b[] = data.getBytes();

String gzipValue = request.getHeader("Accept-Encoding"); //是否支持gzip压缩

if(gzipValue.contains("gzip")){

    ByteArrayOutputStream baos = new ByteArrayOutputStream();//带缓存的字节输出流

    GZIPOutputStream gout = new GZIPOutputStream(baos);

    gout.write(b);

    b = baos.toByteArray();

    response.setHeader("Content-Encoding", "gzip");

    reponse.setContentLength(b.length);

}

    response.getOutputStream.write(b);