Java用戶端串連https伺服器

 import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLSession;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.DataOutputStream;
import java.net.HttpURLConnection;
import org.apache.xerces.impl.dv.util.Base64;

 

 

public class ssltest {

    protected String connect(String strUrl) {

            trustAllHttpsCertificates();

            HostnameVerifier hv = new HostnameVerifier() {
                        public boolean verify(String urlHostName, SSLSession session) {
                                System.out.println("Warning: URL Host: " + urlHostName + " vs. "
                                       + session.getPeerHost());
                                 return true;
                        }
            };

            HttpsURLConnection.setDefaultHostnameVerifier(hv);

          
            URL url = new URL(strUrl);
            HttpURLConnection urlConn = (HttpURLConnection) url.openConnection();
 串連到HTTPS伺服器
          ......

    }

    
    private static void trustAllHttpsCertificates() throws Exception {

        //  Create a trust manager that does not validate certificate chains:

        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());

    }

    public 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;
        }
    }
   
}