HttpClientにて自己証明書や、ルート証明書なしでのSSLアクセスを可能とする

単純に証明書のチェックを無効化させる

DefaultHttpClient

/*
 * 証明書のチェック処理を無効化する
 */
SSLContext sslContext = SSLContext.getInstance("SSL");
sslContext.init(null, new TrustManager[]{new X509TrustManager() {
        
    @Override
    public X509Certificate[] getAcceptedIssuers() {
        return null;
    }
    
    @Override
    public void checkClientTrusted(X509Certificate[] certs, String authType) {
        // 何もしない
    }
    
    @Override
    public void checkServerTrusted(X509Certificate[] certs, String authType) {
        // 何もしない
    }
}}, new SecureRandom());

Scheme sch = new Scheme("https", new SSLSocketFactory(sslContext), 443);

DefaultHttpClient httpClient = new DefaultHttpClient();
httpClient.getConnectionManager().getSchemeRegistry().register(sch);

HttpsURLConnection

SSLContext sslContext = SSLContext.getInstance("SSL");
TrustManager tm = new X509TrustManager() {

    @Override
    public X509Certificate[] getAcceptedIssuers() {
        return null;
    }

    @Override
    public void checkServerTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
    }

    @Override
    public void checkClientTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
    }
};
sslContext.init(null, new TrustManager[]{tm}, null);
SSLSocketFactory socketFactory = sslContext.getSocketFactory();

HttpsURLConnection.setDefaultSSLSocketFactory(socketFactory);
Client client = Client.create();