Java爬虫--Https绕过证书

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https网站服务器都是有证书的。是由网站自己的服务器签发的，并不被浏览器或操作系统广泛接受。

在使用CloseableHttpClient时经常遇到证书错误(知乎的网站就是这样)

现在需要SSL绕过证书，下面直接贴出代码，调用时只需要在发送请求后 new HttpsBerBer(文件的字节码) ;

 import javax.net.ssl.HostnameVerifier;

 import javax.net.ssl.HttpsURLConnection;

 import javax.net.ssl.SSLSession;

 import java.util.logging.Logger;

 public class HttpsBerBer {

     public HttpsBerBer(String name) throws Exception {

         logger = Logger.getLogger(name);

         trustAllHttpsCertificates();

         HostnameVerifier hv = new HostnameVerifier() {

             public boolean verify(String urlHostName, SSLSession session) {

                 logger.info("Warning: URL Host: " + urlHostName + " vs. " + session.getPeerHost());

                 return true;

             }

         };

         HttpsURLConnection.setDefaultHostnameVerifier(hv);

     }

     private static Logger logger ;

     private static void trustAllHttpsCertificates() throws Exception {

         javax.net.ssl.TrustManager[] trustAllCerts = new javax.net.ssl.TrustManager[1];

         javax.net.ssl.TrustManager tm = new miTM();

         trustAllCerts[0] = tm;

         javax.net.ssl.SSLContext sc = javax.net.ssl.SSLContext

                 .getInstance("SSL");

         sc.init(null, trustAllCerts, null);

         javax.net.ssl.HttpsURLConnection.setDefaultSSLSocketFactory(sc

                 .getSocketFactory());

     }

     static class miTM implements javax.net.ssl.TrustManager,

             javax.net.ssl.X509TrustManager {

         public java.security.cert.X509Certificate[] getAcceptedIssuers() {

             return null;

         }

         public boolean isServerTrusted(

                 java.security.cert.X509Certificate[] certs) {

             return true;

         }

         public boolean isClientTrusted(

                 java.security.cert.X509Certificate[] certs) {

             return true;

         }

         public void checkServerTrusted(

                 java.security.cert.X509Certificate[] certs, String authType)

                 throws java.security.cert.CertificateException {

             return;

         }

         public void checkClientTrusted(

                 java.security.cert.X509Certificate[] certs, String authType)

                 throws java.security.cert.CertificateException {

             return;

         }

     }

 }