HttpClient_httpclient中使用HTTPS的方法

import javax.net.ssl.SSLContext;

import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.conn.ClientConnectionManager;

import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.conn.scheme.SchemeSocketFactory;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.ClientParamsStack;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.DefaultedHttpParams;
import org.apache.http.params.HttpParams;

public class HttpClientTest {

    public static void main(String args[]) {

        try {

            HttpClient httpclient = new DefaultHttpClient();
                        //Secure Protocol implementation.
            SSLContext ctx = SSLContext.getInstance("SSL");
                        //Implementation of a trust manager for X509 certificates
            X509TrustManager tm = new X509TrustManager() {

                public void checkClientTrusted(X509Certificate[] xcs,
                        String string) throws CertificateException {

                }

                public void checkServerTrusted(X509Certificate[] xcs,
                        String string) throws CertificateException {
                }

                public X509Certificate[] getAcceptedIssuers() {
                    return null;
                }
            };
            ctx.init(null, new TrustManager[] { tm }, null);
            SSLSocketFactory ssf = new SSLSocketFactory(ctx);

            ClientConnectionManager ccm = httpclient.getConnectionManager();
                        //register https protocol in httpclient's scheme registry
            SchemeRegistry sr = ccm.getSchemeRegistry();
            sr.register(new Scheme("https", 443, ssf));

            HttpGet httpget = new HttpGet("");
            HttpParams params = httpclient.getParams();

            params.setParameter("param1", "paramValue1");

            httpget.setParams(params);
            System.out.println("REQUEST:" + httpget.getURI());
            ResponseHandler responseHandler = new BasicResponseHandler();
            String responseBody;

            responseBody = httpclient.execute(httpget, responseHandler);

            System.out.println(responseBody);

            // Create a response handler

        } catch (NoSuchAlgorithmException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (Exception ex) {
            ex.printStackTrace();

        }
    }
}