httpClient发送https请求

httpclient版本：4.5.2

package com.maven.httpclient.util;import java.io.IOException;import java.nio.charset.Charset;import java.security.KeyManagementException;import java.security.KeyStoreException;import java.security.NoSuchAlgorithmException;import java.security.cert.CertificateException;import java.security.cert.X509Certificate;import java.util.ArrayList;import java.util.List;import java.util.Map;import javax.net.ssl.SSLContext;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.HttpStatus;import org.apache.http.NameValuePair;import org.apache.http.client.ClientProtocolException;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.conn.ssl.SSLConnectionSocketFactory;import org.apache.http.conn.ssl.SSLContextBuilder;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClients;import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;import org.apache.http.message.BasicNameValuePair;import org.apache.http.util.EntityUtils;import org.apache.http.conn.ssl.TrustStrategy; public class HttpUitl {private static PoolingHttpClientConnectionManager conMgr;private static RequestConfig requestConfig;private static final int MAX_TIMEOUT = 7000;static{//设置连接池conMgr = new PoolingHttpClientConnectionManager();conMgr.setMaxTotal(100);conMgr.setDefaultMaxPerRoute(conMgr.getMaxTotal());RequestConfig.Builder configBuilder = RequestConfig.custom();configBuilder.setConnectTimeout(MAX_TIMEOUT);configBuilder.setSocketTimeout(MAX_TIMEOUT);configBuilder.setConnectionRequestTimeout(MAX_TIMEOUT);requestConfig = configBuilder.build();}/** * 发送get请求 * @param url * @param headers * @param params * @param isHttps * @return */public static String doGet(String url, Map<String, Object> headers, Map<String, Object> params,boolean isHttps){HttpResponse response = null;String apiUrl = url;StringBuffer param = new StringBuffer();int i = 0;if(params != null && !params.isEmpty()){for(String key : params.keySet()){if(i == 0){param.append("?");}else{param.append("&");}param.append(key).append("=").append(params.get(key));}}apiUrl += param;System.out.println("ss:"+apiUrl);String result = null;CloseableHttpClient httpclient = null;if(isHttps){httpclient = createSSLClientDefault();}else{httpclient = HttpClients.createDefault();}HttpGet httpGet = new HttpGet(apiUrl);if(headers != null && !headers.isEmpty()){for(String key : headers.keySet()){httpGet.setHeader(key, headers.get(key).toString());}}try {response = httpclient.execute(httpGet);int statusCode = response.getStatusLine().getStatusCode();System.out.println("执行状态码: " + statusCode);HttpEntity entity = response.getEntity();if(entity != null){result = EntityUtils.toString(entity, "UTF-8");}} catch (ClientProtocolException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} finally{if(response != null){try {EntityUtils.consume(response.getEntity());} catch (IOException e) {e.printStackTrace();}}}return result;}public static String doPost(String apiUrl, Map<String, Object> headers, Map<String, Object> params,boolean isHttps){CloseableHttpClient httpclient = createSSLClientDefault();HttpPost httpPost = new HttpPost(apiUrl);CloseableHttpResponse response = null;String httpStr = null;httpPost.setConfig(requestConfig);if(headers != null && !headers.isEmpty()){for(String key : headers.keySet()){httpPost.setHeader(key, headers.get(key).toString());}}if(params != null && !params.isEmpty()){List<NameValuePair> pairList = new ArrayList<NameValuePair>(params.size());for(Map.Entry<String, Object> entry : params.entrySet()){NameValuePair pair = new BasicNameValuePair(entry.getKey(), entry.getValue().toString());pairList.add(pair);}httpPost.setEntity(new UrlEncodedFormEntity(pairList, Charset.forName("UTF-8")));}try {response = httpclient.execute(httpPost);int statusCode = response.getStatusLine().getStatusCode();if(statusCode != HttpStatus.SC_OK){return null;}HttpEntity entity = response.getEntity();if(entity != null){return null;}httpStr = EntityUtils.toString(entity, "UTF-8");} catch (ClientProtocolException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} finally{if (response != null) {                  try {                      EntityUtils.consume(response.getEntity());                  } catch (IOException e) {                      e.printStackTrace();                  }              } }return httpStr;}/** * 创建SSL连接 * @return */public static CloseableHttpClient createSSLClientDefault(){try {@SuppressWarnings("deprecation")SSLContext sslContext = new SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy() {      //信任所有      public boolean isTrusted(X509Certificate[] chain,                               String authType) throws CertificateException {          return true;      }  }).build();SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslContext);return HttpClients.custom().setSSLSocketFactory(sslsf).build();} catch (KeyManagementException e) {e.printStackTrace();} catch (NoSuchAlgorithmException e) {e.printStackTrace();} catch (KeyStoreException e) {e.printStackTrace();}return HttpClients.createDefault();}}

在代码测试中发现发送HTTPS请求时会报一个异常：

# Exception in thread "main" javax.net.ssl.SSLException: hostname in certificate didn't match: <w03gca01a> != <localhost>    #     at org.apache.http.conn.ssl.AbstractVerifier.verify(AbstractVerifier.java:220)    #     at org.apache.http.conn.ssl.BrowserCompatHostnameVerifier.verify(BrowserCompatHostnameVerifier.java:54)  

查找资料后，只要将创建SSL连接的

SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslContext); 

修改成

SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslContext, SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);

就可以了

参考网址：

http://blog.csdn.net/happylee6688/article/details/47148227

http://blog.csdn.net/liufang1991/article/details/51595952

http://blog.csdn.net/blue_jjw/article/details/8768624

http://jinnianshilongnian.iteye.com/blog/2089792

http://blog.csdn.net/jbgtwang/article/details/38303183