封装HttpClient进行http请求与https请求

/** * 利用HttpClient的工具类 * ?* @author Joey * */public class HttpClientUtil { ???????private static String charSet = "UTF-8"; ???private static CloseableHttpClient httpClient = null; ???private static CloseableHttpResponse response = null; ???????/** ????* https的post请求 ????* @param url ????* @param jsonstr ????* @param charset ????* @return ????*/ ???public static String doHttpsPost(String url, String jsonStr) { ???????try { ???????????httpClient = SSLClient.createSSLClientDefault(); ???????????HttpPost httpPost = new HttpPost(url); ???????????httpPost.setHeader("Content-Type", "application/json"); ???????????????????????StringEntity se = new StringEntity(jsonStr); ???????????se.setContentType("text/json"); ???????????se.setContentEncoding(new BasicHeader("Content-Type", "application/json")); ???????????httpPost.setEntity(se); ???????????????????????response = httpClient.execute(httpPost); ???????????if (response != null) { ???????????????HttpEntity resEntity = response.getEntity(); ???????????????if (resEntity != null) { ???????????????????return EntityUtils.toString(resEntity, charSet); ???????????????} ???????????} ???????} catch (Exception ex) { ???????????ex.printStackTrace(); ???????}finally { ????????????if(httpClient != null){ ???????????????????try { ???????????????????????httpClient.close(); ???????????????????} catch (IOException e) { ???????????????????????e.printStackTrace(); ???????????????????} ???????????????} ???????????????if(response != null){ ???????????????????try { ???????????????????????response.close(); ???????????????????} catch (IOException e) { ???????????????????????e.printStackTrace(); ???????????????????} ???????????????} ???????} ???????return null; ???} ???????/** ????* http的post请求(用于key-value格式的参数) ?????* @param url ????* @param param ????* @return ????*/ ???public static String doHttpPost(String url,Map<String,String> param){ ???????try { ???????????//请求发起客户端 ???????????httpClient = HttpClients.createDefault(); ???????????//参数集合 ???????????List<NameValuePair> postParams = new ArrayList<NameValuePair>(); ???????????//遍历参数并添加到集合 ???????????for(Map.Entry<String, String> entry:param.entrySet()){ ???????????????postParams.add(new BasicNameValuePair(entry.getKey(), entry.getValue())); ???????????} ???????????????????????//通过post方式访问 ???????????HttpPost post = new HttpPost(url); ???????????HttpEntity paramEntity = new UrlEncodedFormEntity(postParams,charSet); ???????????post.setEntity(paramEntity); ???????????response = httpClient.execute(post); ???????????StatusLine status = response.getStatusLine(); ?????????????int state = status.getStatusCode(); ?????????????if (state == HttpStatus.SC_OK) { ?????????????????HttpEntity valueEntity = response.getEntity(); ???????????????String content = EntityUtils.toString(valueEntity); ???????????????//jsonObject = JSONObject.fromObject(content); ???????????????return content; ???????????} ???????} catch (UnsupportedEncodingException e) { ???????????e.printStackTrace(); ???????} catch (ClientProtocolException e) { ???????????e.printStackTrace(); ???????} catch (IOException e) { ???????????e.printStackTrace(); ???????}finally{ ???????????if(httpClient != null){ ???????????????try { ???????????????????httpClient.close(); ???????????????} catch (IOException e) { ???????????????????e.printStackTrace(); ???????????????} ???????????} ???????????if(response != null){ ???????????????try { ???????????????????response.close(); ???????????????} catch (IOException e) { ???????????????????e.printStackTrace(); ???????????????} ???????????} ???????} ???????return null; ???} ????????/** ?????* http的post请求（用于请求json格式的参数） ?????* @param url ?????* @param params ?????* @return ?????*/ ?????public static String doHttpPost(String url, String jsonStr) { ?????????try { ???????????httpClient = HttpClients.createDefault(); ?????????????????????// 创建httpPost ???????????HttpPost httpPost = new HttpPost(url); ????????????????httpPost.setHeader("Accept", "application/json"); ????????????????????????????StringEntity entity = new StringEntity(jsonStr, charSet); ?????????????entity.setContentType("text/json"); ???????????entity.setContentEncoding(new BasicHeader("Content-Type", "application/json")); ???????????httpPost.setEntity(entity); ?????????????????????//发送post请求 ???????????response = httpClient.execute(httpPost); ?????????????if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) { ?????????????????HttpEntity responseEntity = response.getEntity(); ?????????????????String jsonString = EntityUtils.toString(responseEntity); ?????????????????return jsonString; ?????????????} ???????}catch(Exception e) { ?????????????e.printStackTrace(); ???????}finally { ???????????if(httpClient != null){ ???????????????try { ???????????????????httpClient.close(); ???????????????} catch (IOException e) { ???????????????????e.printStackTrace(); ???????????????} ???????????} ???????????if(response != null){ ???????????????try { ???????????????????response.close(); ???????????????} catch (IOException e) { ???????????????????e.printStackTrace(); ???????????????} ???????????} ???????} ?????????return null; ?????} ?????????/** ????* http的Get请求 ????* @param url ????* @param param ????* @return ????*/ ???public static String doHttpGet(String url,Map<String,String> param) { ???????CloseableHttpClient httpclient = null; ???????CloseableHttpResponse response = null; ???????????????try { ???????????httpclient = HttpClients.createDefault(); ???????????if(param != null && !param.isEmpty()) { ???????????????//参数集合 ???????????????List<NameValuePair> getParams = new ArrayList<NameValuePair>(); ???????????????for(Map.Entry<String, String> entry:param.entrySet()){ ???????????????????getParams.add(new BasicNameValuePair(entry.getKey(), entry.getValue())); ???????????????} ???????????????url +="?"+EntityUtils.toString(new UrlEncodedFormEntity(getParams), "UTF-8"); ???????????} ???????????//发送gey请求 ???????????HttpGet httpGet = new HttpGet(url); ?????????????response = httpclient.execute(httpGet); ?????????????if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) { ?????????????????return EntityUtils.toString(response.getEntity()); ?????????????} ????????}catch(Exception e) { ???????????e.printStackTrace(); ???????}finally{ ???????????if(httpclient != null){ ???????????????try { ???????????????????httpclient.close(); ???????????????} catch (IOException e) { ???????????????????e.printStackTrace(); ???????????????} ???????????} ???????????if(response != null){ ???????????????try { ???????????????????response.close(); ???????????????} catch (IOException e) { ???????????????????e.printStackTrace(); ???????????????} ???????????} ???????} ???????return null; ???} ???}