import java.io.IOException;

 import java.nio.charset.Charset;

 import java.security.KeyManagementException;

 import java.security.KeyStoreException;

 import java.security.NoSuchAlgorithmException;

 import java.util.ArrayList;

 import java.util.HashMap;

 import java.util.List;

 import java.util.Map;

 import javax.net.ssl.SSLContext;

 import org.apache.commons.lang.StringUtils;

 import org.apache.http.HttpEntity;

 import org.apache.http.NameValuePair;

 import org.apache.http.client.config.RequestConfig;

 import org.apache.http.client.entity.UrlEncodedFormEntity;

 import org.apache.http.client.methods.CloseableHttpResponse;

 import org.apache.http.client.methods.HttpGet;

 import org.apache.http.client.methods.HttpPost;

 import org.apache.http.client.utils.URIBuilder;

 import org.apache.http.conn.ssl.SSLConnectionSocketFactory;

 import org.apache.http.conn.ssl.SSLContextBuilder;

 import org.apache.http.conn.ssl.TrustStrategy;

 import org.apache.http.entity.StringEntity;

 import org.apache.http.impl.client.CloseableHttpClient;

 import org.apache.http.impl.client.HttpClientBuilder;

 import org.apache.http.message.BasicNameValuePair;

 import org.apache.http.util.EntityUtils;

 import org.slf4j.Logger;

 import org.slf4j.LoggerFactory;

 import com.fasterxml.jackson.databind.ObjectMapper;

 public class HttpClient {

     private final static String ENCODE = "utf-8";

     private final static Charset CHARSET = Charset.forName("utf-8");

     private final static int SOCKET_TIME_OUT = 12000;

     private final static int SOCKET_CONNECT_OUT = 12000;

     private final static int CONNECTION_REQUEST_OUT = 12000;

     private static RequestConfig defaultRequestConfig = RequestConfig.custom().setSocketTimeout(SOCKET_TIME_OUT)

             .setConnectTimeout(SOCKET_CONNECT_OUT).setConnectionRequestTimeout(CONNECTION_REQUEST_OUT).build();

     private static ObjectMapper objectMapper = new ObjectMapper();

     private static final Logger LOG = LoggerFactory.getLogger(HttpClient.class);

     @SuppressWarnings("deprecation")

     public static SSLConnectionSocketFactory sslInit() {

         SSLContext sslContext = null;

         try {

             sslContext = new SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy() {

                 // 信任所有

                 public boolean isTrusted(java.security.cert.X509Certificate[] chain, String authType) throws java.security.cert.CertificateException {

                     return true;

                 }

             }).build();

         } catch (KeyManagementException e) {

             e.printStackTrace();

         } catch (NoSuchAlgorithmException e) {

             e.printStackTrace();

         } catch (KeyStoreException e) {

             e.printStackTrace();

         }

         return new SSLConnectionSocketFactory(sslContext);

     }

     /**

      * @Description     post请求函数

      * @param scheme    http/https

      * @param host      请求域名

      * @param path      请求路径

      * @param params    URL请求参数

      * @param jsonBody  HTTP请求BODY

      * @param headers   HTTP请求头部

      * @return

      */

     public static HashMap post(String scheme, String host, String path, Map<String, String> params, String jsonBody,  Map<String, String> headers) {

         HashMap resultMap = new HashMap();

         CloseableHttpClient closeableHttpClient = null;

         try {

             SSLConnectionSocketFactory sslsf = sslInit();

             closeableHttpClient = HttpClientBuilder.create().setDefaultRequestConfig(defaultRequestConfig).setSSLSocketFactory(sslsf).build();

             //添加URL参数

             List<NameValuePair> values = new ArrayList<NameValuePair>();

             if (params != null && !params.isEmpty()) {

                 for (String s : params.keySet()) {

                     values.add(new BasicNameValuePair(s, params.get(s)));

                 }

             }

             //创建URI

             java.net.URI uri = new URIBuilder()

             .setScheme(scheme)

             .setHost(host)

             .setPath(path)

             .setParameters(values)

             .build();

             HttpPost httpPost = new HttpPost(uri);

             //添加头部

             if (headers != null && !headers.isEmpty()) {

                 for (String s : headers.keySet()) {

                     httpPost.addHeader(s, headers.get(s));

                 }

             }

             //添加URL参数

             /*if (params != null && !params.isEmpty()) {

                 List<NameValuePair> values = new ArrayList<NameValuePair>();

                 for (String s : params.keySet()) {

                     values.add(new BasicNameValuePair(s, params.get(s)));

                 }

                 httpPost.setEntity(new UrlEncodedFormEntity(values, ENCODE));

             }*/

             //添加请求BODY

             if (jsonBody != null) {

                 httpPost.setEntity(new StringEntity(jsonBody, Charset.forName("utf-8")));

             }

             LOG.info("HTTP Request URI:{}",httpPost.getURI().toString());

             LOG.info("HTTP Request Body: {}",jsonBody);

             //发出请求

             CloseableHttpResponse response = closeableHttpClient.execute(httpPost);

             HttpEntity entity = response.getEntity();

             String content = EntityUtils.toString(entity, ENCODE);

             LOG.info("HTTP Response:{}",content);

             if(StringUtils.isNotBlank(content)){

             resultMap = objectMapper.readValue(content, HashMap.class);

             }

         } catch (Exception e) {

             LOG.info("Error msg:[{}]",e.getMessage());

             e.printStackTrace();

         } finally {

             try {

                 if (closeableHttpClient != null) {

                     closeableHttpClient.close();

                 }

             } catch (IOException e) {

                 e.printStackTrace();

             }

         }

         return resultMap;

     }

     /**

      * @Description   http get请求函数

      * @param scheme  http/https

      * @param host    域名

      * @param path    资源路径

      * @param params  请求参数

      * @param headers 请求头部

      * @return

      */

     public static HashMap get(String scheme, String host, String path, Map<String, String> params, Map<String, String> headers) {

         HashMap resultMap = new HashMap();

         CloseableHttpClient closeableHttpClient = null;

         try {

             SSLConnectionSocketFactory sslsf = sslInit();

             closeableHttpClient = HttpClientBuilder.create().setDefaultRequestConfig(defaultRequestConfig).setSSLSocketFactory(sslsf).build();

             //添加URL参数

             List<NameValuePair> values = new ArrayList<NameValuePair>();

             if (params != null && !params.isEmpty()) {

                 for (String s : params.keySet()) {

                     values.add(new BasicNameValuePair(s, params.get(s)));

                 }

             }

             //创建URI

             java.net.URI uri = new URIBuilder()

             .setScheme(scheme)

             .setHost(host)

             .setPath(path)

             .setParameters(values)

             .build();

             LOG.info("URI is:{}",uri.toString());

             //创建GET请求对象

             HttpGet httpGet = new HttpGet(uri);

             //添加头部

             if (headers != null && !headers.isEmpty()) {

                 for (String s : headers.keySet()) {

                     httpGet.addHeader(s, headers.get(s));

                 }

             }

             //发出请求

             LOG.info("HTTP Request:{}",httpGet.getURI().toString());

             CloseableHttpResponse response = closeableHttpClient.execute(httpGet);

             HttpEntity entity = response.getEntity();

             String content = EntityUtils.toString(entity, ENCODE);

              LOG.info("HTTP Response:{}",content);

             if(StringUtils.isNotBlank(content)){

             resultMap = objectMapper.readValue(content, HashMap.class);

             }

         } catch (Exception e) {

             LOG.info("Error msg:[{}]",e.getMessage());

             e.printStackTrace();

         } finally {

             try {

                 if (closeableHttpClient != null) {

                     closeableHttpClient.close();

                 }

             } catch (IOException e) {

             e.printStackTrace();

             }

         }

         return resultMap;

     }

 }