private static HttpClient httpClient;

    static {

 

        HttpParams params = new BasicHttpParams();

        HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);

        HttpProtocolParams.setContentCharset(params,

                HTTP.DEFAULT_CONTENT_CHARSET);

        HttpProtocolParams.setUseExpectContinue(params, true);

 

        // 设置timeout

        HttpConnectionParams.setConnectionTimeout(params, 5 * 1000);

        HttpConnectionParams.setSoTimeout(params, 5 * 1000);

        SchemeRegistry schReg = new SchemeRegistry();

        schReg.register(new Scheme("http", PlainSocketFactory

                .getSocketFactory(), 80));

        schReg.register(new Scheme("https",

                SSLSocketFactory.getSocketFactory(), 443));

 

        // 线程安全的

        ClientConnectionManager conMgr = new ThreadSafeClientConnManager(

                params, schReg);

 

        httpClient = new DefaultHttpClient(conMgr, params);

    }