android https HttpsURLConnection 忽略证书

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLSession;

import android.util.Log;

public class NullHostNameVerifier implements HostnameVerifier {

@Override
public boolean verify(String hostname, SSLSession session) {
Log.i("RestUtilImpl", "Approving certificate for " + hostname);
return true;
}

}

HttpURLConnection conn = null;

// Create a trust manager that does not validate certificate chains
TrustManager[] trustAllCerts = new TrustManager[]{new X509TrustManager(){
public X509Certificate[] getAcceptedIssuers(){return null;}
public void checkClientTrusted(X509Certificate[] certs, String authType){}
public void checkServerTrusted(X509Certificate[] certs, String authType){}
}};

// Install the all-trusting trust manager
try {// 注意这部分一定要
HttpsURLConnection.setDefaultHostnameVerifier(new NullHostNameVerifier());
SSLContext sc = SSLContext.getInstance("TLS");
sc.init(null, trustAllCerts, new SecureRandom());
HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());

URL url = new URL(notifyUrl);
conn = (HttpURLConnection) url.openConnection();
conn.connect();
System.out.println(conn.getResponseCode() + " " + conn.getResponseMessage());
} catch (Exception e) {
e.printStackTrace();
}