httpclient请求报错javax.net.ssl.SSLException

public class HttpClientHelper {

    private static HttpClient httpClient;

    private HttpClientHelper() {
    }

    public static synchronized HttpClient getHttpClient() {

        if (null == httpClient) {
            // 初始化工作
            try {
                KeyStore trustStore = KeyStore.getInstance(KeyStore
                        .getDefaultType());
                trustStore.load(null, null);
                SSLSocketFactory sf = new SSLSocketFactoryEx(trustStore);
                sf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);  //允许所有主机的验证

                HttpParams params = new BasicHttpParams();

                HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
                HttpProtocolParams.setContentCharset(params,
                        HTTP.DEFAULT_CONTENT_CHARSET);
                HttpProtocolParams.setUseExpectContinue(params, true);

                // 设置连接管理器的超时
                ConnManagerParams.setTimeout(params, 10000);
                // 设置连接超时
                HttpConnectionParams.setConnectionTimeout(params, 10000);
                // 设置socket超时
                HttpConnectionParams.setSoTimeout(params, 10000);

                // 设置http https支持
                SchemeRegistry schReg = new SchemeRegistry();
                schReg.register(new Scheme("http", PlainSocketFactory
                        .getSocketFactory(), 80));
                schReg.register(new Scheme("https", sf, 443));

                ClientConnectionManager conManager = new ThreadSafeClientConnManager(
                        params, schReg);

                httpClient = new DefaultHttpClient(conManager, params);
            } catch (Exception e) {
                e.printStackTrace();
                return new DefaultHttpClient();
            }
        }
        return httpClient;
    }

}

class SSLSocketFactoryEx extends SSLSocketFactory {

    SSLContext sslContext = SSLContext.getInstance("TLS");

    public SSLSocketFactoryEx(KeyStore truststore)
            throws NoSuchAlgorithmException, KeyManagementException,
            KeyStoreException, UnrecoverableKeyException {
        super(truststore);

        TrustManager tm = new X509TrustManager() {

            @Override
            public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                return null;
            }

            @Override
            public void checkClientTrusted(
                    java.security.cert.X509Certificate[] chain, String authType)
                    throws java.security.cert.CertificateException {

            }

            @Override
            public void checkServerTrusted(
                    java.security.cert.X509Certificate[] chain, String authType)
                    throws java.security.cert.CertificateException {

            }
        };

        sslContext.init(null, new TrustManager[] { tm }, null);
    }

    @Override
    public Socket createSocket(Socket socket, String host, int port,
            boolean autoClose) throws IOException, UnknownHostException {
        return sslContext.getSocketFactory().createSocket(socket, host, port,
                autoClose);
    }

    @Override
    public Socket createSocket() throws IOException {
        return sslContext.getSocketFactory().createSocket();
    }
}