/*** 压缩数据包** @param code* @param data* @param resp* @throws IOException*/protected void writeZipResult(int code, Object data, HttpServletResponse resp) throws IOException {resp.setHeader("Content-Encoding", "gzip");// write到客户端resp.setContentType("application/json;charset=utf-8");ApiResult ret = new ApiResult();ret.setData(data);ret.setCode(code);byte[] compressedData = null;ByteArrayOutputStream baos = null;GZIPOutputStream gzos = null;byte[] bytes = null;try {baos = new ByteArrayOutputStream();gzos = new GZIPOutputStream(baos);bytes = JSON.toJSONString(ret).getBytes(StandardCharsets.UTF_8);gzos.write(bytes);gzos.finish();compressedData = baos.toByteArray();logger.info("Original data len:{} after compression len:{} compression rate:{}", bytes.length, compressedData.length, compressedData.length * 1.0 * 100 / bytes.length);} catch (Exception e) {logger.error("Compressed data is abnormal", e);} finally {if (gzos != null) {gzos.close();}if (baos != null) {baos.close();}}if (compressedData != null) {// 设置Content-Lengthresp.setContentLength(compressedData.length);resp.getOutputStream().write(compressedData);resp.getOutputStream().flush();}}

压缩结果能达到 90%以上