long startTime = System.currentTimeMillis();
CloseableHttpClient httpClient = HttpClients.createDefault(); // CloseableHttpClient 是线程安全
long endTime1 = System.currentTimeMillis();
log.info("createDefault耗时:{}毫秒",endTime1-startTime);
httpclients.createdefault() 这一步耗时1300毫秒,哪位大 神可以解释一下