java https url 인증서 없이 호출

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.nio.charset.Charset;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

public class TestData {

	public static void main(String[] args) throws Exception {
		String url 						= "";
        String urlParameters 		= "";
        URL obj = new URL(url);
        ignoreSsl();
        HttpsURLConnection con = (HttpsURLConnection) obj.openConnection();

        //add reuqest header
        con.setRequestMethod("POST");
        con.setConnectTimeout(10000);       //컨텍션타임아웃 10초
        con.setReadTimeout(5000);           //컨텐츠조회 타임아웃 5초
        con.setDoOutput(true);              //항상 갱신된내용을 가져옴.
        DataOutputStream wr = new DataOutputStream(con.getOutputStream());
        wr.writeBytes(urlParameters);
        wr.flush();
        wr.close();

        int responseCode = con.getResponseCode();

        Charset charset = Charset.forName("UTF-8");
        BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream(),charset));
        String inputLine;
        StringBuffer response = new StringBuffer();

        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();
        System.out.println(response.toString());

	}
	public static void ignoreSsl() throws Exception{
        HostnameVerifier hv = new HostnameVerifier() {
        public boolean verify(String urlHostName, SSLSession session) { 
                return true;
            }
        };
        trustAllHttpsCertificates();
        HttpsURLConnection.setDefaultHostnameVerifier(hv);
    }
	public static void trustAllHttpsCertificates() throws Exception {
	    TrustManager[] trustAllCerts = new TrustManager[1];
	    TrustManager tm = new miTM();
	    trustAllCerts[0] = tm;
	    SSLContext sc = SSLContext.getInstance("SSL");
	    sc.init(null, trustAllCerts, null);
	    HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
	}
	
	static class miTM implements TrustManager,X509TrustManager {
	    public X509Certificate[] getAcceptedIssuers() {
	        return null;
	    }
	
	    public boolean isServerTrusted(X509Certificate[] certs) {
	        return true;
	    }
	
	    public boolean isClientTrusted(X509Certificate[] certs) {
	        return true;
	    }
	
	    public void checkServerTrusted(X509Certificate[] certs, String authType)
	            throws CertificateException {
	        return;
	    }
	
	    public void checkClientTrusted(X509Certificate[] certs, String authType)
	            throws CertificateException {
	        return;
	    }
	}

}