Java爬蟲--Https繞過認證

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　　https網站伺服器都是有認證的。 是由網站自己的伺服器簽發的，並不被瀏覽器或作業系統廣泛接受。

　　在使用CloseableHttpClient時經常遇到認證錯誤(知乎的網站就是這樣)

　　現在需要SSL繞過認證，下面直接貼出代碼，調用時只需要在發送請求後  new  HttpsBerBer(檔案的位元組碼) ; 

 1 import javax.net.ssl.HostnameVerifier; 2 import javax.net.ssl.HttpsURLConnection; 3 import javax.net.ssl.SSLSession; 4 import java.util.logging.Logger; 5  6 public class HttpsBerBer { 7     public HttpsBerBer(String name) throws Exception { 8         logger = Logger.getLogger(name); 9         trustAllHttpsCertificates();10         HostnameVerifier hv = new HostnameVerifier() {11             public boolean verify(String urlHostName, SSLSession session) {12                 logger.info("Warning: URL Host: " + urlHostName + " vs. " + session.getPeerHost());13                 return true;14             }15         };16         HttpsURLConnection.setDefaultHostnameVerifier(hv);17     }18     private static Logger logger ;19     private static void trustAllHttpsCertificates() throws Exception {20         javax.net.ssl.TrustManager[] trustAllCerts = new javax.net.ssl.TrustManager[1];21         javax.net.ssl.TrustManager tm = new miTM();22         trustAllCerts[0] = tm;23         javax.net.ssl.SSLContext sc = javax.net.ssl.SSLContext24                 .getInstance("SSL");25         sc.init(null, trustAllCerts, null);26         javax.net.ssl.HttpsURLConnection.setDefaultSSLSocketFactory(sc27                 .getSocketFactory());28     }29     static class miTM implements javax.net.ssl.TrustManager,30             javax.net.ssl.X509TrustManager {31         public java.security.cert.X509Certificate[] getAcceptedIssuers() {32             return null;33         }34 35         public boolean isServerTrusted(36                 java.security.cert.X509Certificate[] certs) {37             return true;38         }39 40         public boolean isClientTrusted(41                 java.security.cert.X509Certificate[] certs) {42             return true;43         }44 45         public void checkServerTrusted(46                 java.security.cert.X509Certificate[] certs, String authType)47                 throws java.security.cert.CertificateException {48             return;49         }50 51         public void checkClientTrusted(52                 java.security.cert.X509Certificate[] certs, String authType)53                 throws java.security.cert.CertificateException {54             return;55         }56     }57 }

  

     

Java爬蟲--Https繞過認證