HttpsTest使用百度证书检验并访问百度

HTTPS由于安全性，在目前的应用中越来越广泛

有很多APP存在安全性问题，对服务器证书验证不重视，使用默认证书跳过等

使用openssl可以很方便获取要访问网站的证书，如百度

openssl s_client -connect www.baidu.com:443

拷贝出里面的数组，就可以在程序中使用。如下


import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.Certificate;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactory;import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManagerFactory;public class HttpsTest {/*** * @return SSLSocketFactory* @throws CertificateException* @throws IOException* @throws KeyStoreException* @throws NoSuchAlgorithmException* @throws KeyManagementException*/public static SSLSocketFactory initSSLHttps() throws CertificateException,IOException, KeyStoreException, NoSuchAlgorithmException,KeyManagementException {// openssl s_client -connect www.baidu.com:443String baidu = "-----BEGIN CERTIFICATE-----\n"+ "MIIIdDCCB1ygAwIBAgIQRgvtzGxo+wBn8JgNuE2/gjANBgkqhkiG9w0BAQsFADB+\n"+ "MQswCQYDVQQGEwJVUzEdMBsGA1UEChMUU3ltYW50ZWMgQ29ycG9yYXRpb24xHzAd\n"+ "BgNVBAsTFlN5bWFudGVjIFRydXN0IE5ldHdvcmsxLzAtBgNVBAMTJlN5bWFudGVj\n"+ "IENsYXNzIDMgU2VjdXJlIFNlcnZlciBDQSAtIEc0MB4XDTE3MDYyOTAwMDAwMFoX\n"+ "DTE4MDgxNzIzNTk1OVowgagxCzAJBgNVBAYTAkNOMRAwDgYDVQQIDAdiZWlqaW5n\n"+ "MRAwDgYDVQQHDAdiZWlqaW5nMTkwNwYDVQQKDDBCZWlKaW5nIEJhaWR1IE5ldGNv\n"+ "bSBTY2llbmNlIFRlY2hub2xvZ3kgQ28uLCBMdGQxJjAkBgNVBAsMHXNlcnZpY2Ug\n"+ "b3BlcmF0aW9uIGRlcGFydG1lbnQuMRIwEAYDVQQDDAliYWlkdS5jb20wggEiMA0G\n"+ "CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDImQ8LQt6/ovSyE1jc5M7knA7yDHOb\n"+ "ZUA8OgG8ciml3aPKDbuVQ0JLcuFkRBb74nVxe9EAwgN7NMrSL0dSTl2pYonMfklj\n"+ "7ymfr+LKUigoO8So1XKUsntq6KU7/qXRI4Tpd9zoWoTXUSMgM3BvjN9tyows9GSm\n"+ "v2foMURsnO00az4YITnM2bVuklui6j4TfkRuA/uypcLPRrZM6XnxRvHrznsMCZ5N\n"+ "wqpOQeDQuQCGaFqkKPFlbi8Rb+LPFAICUmmqFplit6ac7gvQeLBN3BeJx1Pu4Jmg\n"+ "oSTPKU0OtRtQtuXaY6+oqpGGP9gqvE5eWYy2YPA2AeojmiNsSPrzf8bDAgMBAAGj\n"+ "ggTBMIIEvTCCAm8GA1UdEQSCAmYwggJiggsqLmJhaWR1LmNvbYIOKi5iYWlmdWJh\n"+ "by5jb22CEiouYmFpZHVjb250ZW50LmNvbYIRKi5iYWlkdXN0YXRpYy5jb22CDiou\n"+ "YmRzdGF0aWMuY29tggsqLmJkaW1nLmNvbYIMKi5iYWlmYWUuY29tggwqLmhhbzEy\n"+ "My5jb22CCyoubnVvbWkuY29tgg0qLmNodWFua2UuY29tgg0qLnRydXN0Z28uY29t\n"+ "gg4qLmJhaWR1YmNlLmNvbYIMKi5taXBjZG4uY29tgg4qLmJhaWR1cGNzLmNvbYIN\n"+ "Ki5iY2Vob3N0LmNvbYIMKi5haXBhZ2UuY29tggsqLmFpcGFnZS5jboILKi5kbG5l\n"+ "bC5jb22CDyouYmNlLmJhaWR1LmNvbYIQKi5leXVuLmJhaWR1LmNvbYIPKi5tYXAu\n"+ "YmFpZHUuY29tgg8qLm1iZC5iYWlkdS5jb22CECoubmV3cy5iYWlkdS5jb22CESou\n"+ "ZmFueWkuYmFpZHUuY29tgg4qLmltLmJhaWR1LmNvbYIQKi5zYWZlLmJhaWR1LmNv\n"+ "bYIRKi5zc2wyLmR1YXBwcy5jb22CCWJhaWR1LmNvbYIMYmFpZnViYW8uY29tggpi\n"+ "YWlmYWUuY29tggx3d3cuYmFpZHUuY26CEHd3dy5iYWlkdS5jb20uY26CEmNsaWNr\n"+ "LmhtLmJhaWR1LmNvbYIQbG9nLmhtLmJhaWR1LmNvbYIQY20ucG9zLmJhaWR1LmNv\n"+ "bYIQd24ucG9zLmJhaWR1LmNvbYIUdXBkYXRlLnBhbi5iYWlkdS5jb22CD21jdC55\n"+ "Lm51b21pLmNvbTAJBgNVHRMEAjAAMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAU\n"+ "BggrBgEFBQcDAQYIKwYBBQUHAwIwYQYDVR0gBFowWDBWBgZngQwBAgIwTDAjBggr\n"+ "BgEFBQcCARYXaHR0cHM6Ly9kLnN5bWNiLmNvbS9jcHMwJQYIKwYBBQUHAgIwGQwX\n"+ "aHR0cHM6Ly9kLnN5bWNiLmNvbS9ycGEwHwYDVR0jBBgwFoAUX2DPYZBV34RDFIpg\n"+ "KrL1evRDGO8wKwYDVR0fBCQwIjAgoB6gHIYaaHR0cDovL3NzLnN5bWNiLmNvbS9z\n"+ "cy5jcmwwVwYIKwYBBQUHAQEESzBJMB8GCCsGAQUFBzABhhNodHRwOi8vc3Muc3lt\n"+ "Y2QuY29tMCYGCCsGAQUFBzAChhpodHRwOi8vc3Muc3ltY2IuY29tL3NzLmNydDCC\n"+ "AQIGCisGAQQB1nkCBAIEgfMEgfAA7gB1AN3rHSt6DU+mIIuBrYFocH4ujp0B1VyI\n"+ "jT0RxM227L7MAAABXPLl8Q4AAAQDAEYwRAIgYmI+Xnom5nr+k+p8RW/BdqobpmTN\n"+ "ubZW8eM1DTueRfcCIAXdDURAie+w+eZMDfgxHlo/r9wZ8gpQVoTib5w3b/6+AHUA\n"+ "pLkJkLQYWBSHuxOizGdwCjw1mAT5G9+443fNDsgN3BAAAAFc8uXxRAAABAMARjBE\n"+ "AiA+PkSvZOvIBmxaBLXLceHH1NqW+Mcrz+xtXNmJOl2ElQIgfVeG4xeuWrb7bpoU\n"+ "smR+LStIG1TPCwimn3JRE3we/fYwDQYJKoZIhvcNAQELBQADggEBADjrCz8a7cax\n"+ "h7vpyuUFZ/fiKBHE7VLqfppgf3XYNBoqh21qM6gTGzdiSeZj+vx+KOUn38f080Rg\n"+ "N2aEkag3n03cufIXR8Yn8haXcusz5PONSlMQnN5rZBwpZ8obItiO8KGOh5lgHQ+s\n"+ "SloX/j8nDDCQgrNkcG2A78nUT+VxGGENxnPmqajP/O2h/kg02qjcnPoj6Elmm/At\n"+ "5dWWANX374yS7c0fgLZZ1mfZoIqooaRxsSJl5RzyRNU3Bzv5CZCJCGYFqC3RS28Q\n"+ "vTCjde7TMsAQiWkZ97IKlUMXdbHManm7K85aWcG4Wg8isr9d2GPUZYgcUSc8KfWY\n"+ "aP5MzoeU6ug=\n" + "-----END CERTIFICATE-----\n";CertificateFactory cf = CertificateFactory.getInstance("X.509");Certificate ca = cf.generateCertificate(new ByteArrayInputStream(baidu.getBytes()));KeyStore keystore = KeyStore.getInstance(KeyStore.getDefaultType());keystore.load(null, null);keystore.setCertificateEntry("baiducom", ca);TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());tmf.init(keystore);// Create an SSLContext that uses our TrustManagerSSLContext context = SSLContext.getInstance("TLS");context.init(null, tmf.getTrustManagers(), null);URL url = new URL("https://www.baidu.com");HttpsURLConnection urlConnection = (HttpsURLConnection) url.openConnection();urlConnection.setSSLSocketFactory(context.getSocketFactory());InputStream input = urlConnection.getInputStream();BufferedReader reader = new BufferedReader(new InputStreamReader(input,"UTF-8"));StringBuffer result = new StringBuffer();String line = "";while ((line = reader.readLine()) != null) {result.append(line);}System.out.print(result.toString());return context.getSocketFactory();}public static void main(String[] args) throws Exception {initSSLHttps();}
}

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