為了安全性的要求，有時候http請求需要通過https來訪問，那麼在Android上如何實現一個https的httpClient呢

實現方式如下：

     public static HttpClient getNewHttpClient() {
            try {
                KeyStore trustStore = KeyStore.getInstance(KeyStore
                           . getDefaultType());
                 trustStore.load( null, null);

                 SSLSocketFactory sf = new SSLSocketFactory(trustStore);
                 sf. setHostnameVerifier(SSLSocketFactory .ALLOW_ALL_HOSTNAME_VERIFIER );

                 HttpParams params = new BasicHttpParams();
                 HttpProtocolParams.setVersion(params, HttpVersion. HTTP_1_1);
                 HttpProtocolParams.setContentCharset(params, HTTP.UTF_8) ;

                 SchemeRegistry registry = new SchemeRegistry();
                 registry. register(new Scheme("http", PlainSocketFactory
                           . getSocketFactory(), 80));
                 registry. register(new Scheme("https", sf, 443));

                 ClientConnectionManager ccm = new ThreadSafeClientConnManager(
                            params, registry);

                 return new DefaultHttpClient(ccm, params);
           } catch (Exception e) {
                 return new DefaultHttpClient();
           }
     }