????return result;

????}

????/**

????* @param uri

????* @param nameValuePairs

????* @return

????*/

????public static PostMethod createPostMethod(String uri?? NameValuePair[] nameValuePairs) {

????PostMethod method = new PostMethod(uri);

????method.addParameters(nameValuePairs);

????method.getParams().setContentCharset(charsetName);

????return method;

????}

????/**

????* @param uri

????* @param nameValuePairs

????* @return

????*/

????public static GetMethod createGetMethod(String uri?? NameValuePair[] nameValuePairs) {

????GetMethod method = new GetMethod(uri);

????List list = Lists.newArrayList();

????if (nameValuePairs != null) {

????Collections.addAll(list?? nameValuePairs);

????method.setQueryString(list.toArray(new NameValuePair[nameValuePairs.length]));

????}

????method.getParams().setContentCharset(charsetName);

????return method;

????}

????public static HttpClient createHttpClient() {

????//1.

????HttpClient httpClient = new HttpClient(new MultiThreadedHttpConnectionManager());

????//2.

????HttpConnectionManagerParams httpConnectionManagerParams = httpClient

????.getHttpConnectionManager().getParams();

????httpConnectionManagerParams.setConnectionTimeout(connectionTimeout);

????httpConnectionManagerParams.setTcpNoDelay(true);//Nagle's algorithm

????httpConnectionManagerParams.setSoTimeout(timeOut);

????httpConnectionManagerParams.setDefaultMaxConnectionsPerHost(maxHostConnections);

????httpConnectionManagerParams.setMaxTotalConnections(maxTotalConnections);

????//3.

????HttpClientParams httpClientParam = httpClient.getParams();

????//httpClientParam.setConnectionManagerTimeout(connectionTimeout);//????????????????????????????????????

????httpClientParam.setParameter(HttpMethodParams.RETRY_HANDLER??

????new DefaultHttpMethodRetryHandler(retryCount?? false));

????httpClientParam.setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);

????return httpClient;

????}

????public static JSONObject doGet(String url?? NameValuePair[] params) {

????return executeMethod(createHttpClient()?? createGetMethod(url?? params));

????}

????public static JSONObject doPost(String url?? NameValuePair[] params) {

????return executeMethod(createHttpClient()?? createPostMethod(url?? params));

????}

????protected HttpClientUtils() {

????}

????public void setTimeOut(int timeOut) {

????HttpClientUtils.timeOut = timeOut;

????}

????public static int getTimeOut() {

????return timeOut;

????}

????public static int getRetryCount() {

????return retryCount;

????}

????public void setRetryCount(int retryCount) {

????HttpClientUtils.retryCount = retryCount;

????}

????public static int getConnectionTimeout() {

????return connectionTimeout;

????}

????public void setConnectionTimeout(int connectionTimeout) {

????HttpClientUtils.connectionTimeout = connectionTimeout;

????}

????public static int getMaxHostConnections() {

????return maxHostConnections;

????}

????public void setMaxHostConnections(int maxHostConnections) {

????HttpClientUtils.maxHostConnections = maxHostConnections;

????}

????public static int getMaxTotalConnections() {

????return maxTotalConnections;

????}

????public void setMaxTotalConnections(int maxTotalConnections) {

????HttpClientUtils.maxTotalConnections = maxTotalConnections;

????}

????public static String getCharsetName() {

????return charsetName;

????}

????public void setCharsetName(String charsetName) {

????HttpClientUtils.charsetName = charsetName;

????}

????}

???????????????????????????????????httpClient?????????????????Щ????ɡ????????????????????????????????棺

????(1)????????????????finally??collection????????????????????????????????????????????????????????????????;

????(2)Retry?????ж???????????????????httpClient4?У?put??post??????δ????http?淶???￡??????????????;

????(3)SSL??TLS??????????;

????(4)?????????????????????Concurrency in practice?е????annotation????????????????????????????SureLogic?????????license????????????apache?????????developer?;

????(5)????????header?????;

????(6)collection stale check????;

????(7)Cookie specification choose??????????????;