protectedstaticLoglog=LogFactory.getLog(HttpClientUtil.class);protectedstaticHttpClienthttpclient=null;protectedstaticintmaxTotal=200;protectedstaticintmaxPerRoute=20;protectedstaticStringuserAgent="Mozilla/5.0(WindowsNT6.1;WOW64)AppleWebKit/535.7(KHTML,likeGecko)Chrome/16.0