配置HTTPS證書

private HttpsURLConnection httpsConfig() throws Exception{
    CertificateFactory cf = CertificateFactory.getInstance("X.509");
 InputStream in = activity.getAssets().open("new-jzbank.cer");//new-jzbank.cer爲證書文件
 Certificate cartificate = cf.generateCertificate(in);
 in.close();
 KeyStore keystore = KeyStore.getInstance(KeyStore.getDefaultType());
 keystore.load(null, null);
 keystore.setCertificateEntry("trust", cartificate);

 TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
 trustManagerFactory.init(keystore);

 SSLContext context = SSLContext.getInstance("TLS"); context.init(null, trustManagerFactory.getTrustManagers(), null); HttpsURLConnection urlConnection = (HttpsURLConnection) url.openConnection(); urlConnection.setSSLSocketFactory(context.getSocketFactory()); return urlConnection;}