HttpClient4.X 升级 入门 + http连接池使用

public class HttpClientMgr {//HttpConnectionManager连接池
    private static ClientConnectionManager cm;
    private static HttpParams params;

    public static final void init() {
        params = new BasicHttpParams();
        // // 设置最大连接数  ,增加最大连接到200
        ConnManagerParams.setMaxTotalConnections(params, 200);
        // 设置每个路由最大连接数  ,增加每个路由的默认最大连接到20
        ConnPerRouteBean connPerRoute = new ConnPerRouteBean(20);
        ConnManagerParams.setMaxConnectionsPerRoute(params, connPerRoute);
        SchemeRegistry schemeRegistry = new SchemeRegistry();
        schemeRegistry.register(new Scheme("http", PlainSocketFactory
                .getSocketFactory(), 80));
        cm = new ThreadSafeClientConnManager(params, schemeRegistry);
    }

    public static final DefaultHttpClient getHttpClient() {
        DefaultHttpClient httpClient = new DefaultHttpClient(cm, params);
        httpClient.getCookieSpecs().register("kds", new CookieSpecFactory() {

            @Override
            public CookieSpec newInstance(HttpParams params) {
                // TODO Auto-generated method stub
                return new KdsCookieSpec();
            }
        });
        //httpClient.getParams().setParameter(ClientPNames.COOKIE_POLICY,
        //        "kds");
        HttpClientParams.setCookiePolicy(httpClient.getParams(), "kds");
        return httpClient;
    }

    public static final void shutdown() {
        cm.shutdown();
    }
    
    public static final String[] DATE_PATTERNS = new String[] {
        "EEE, dd MMM yyyy HH:mm:ss zzz", "EEE, dd-MMM-yy HH:mm:ss zzz",
        "EEE MMM d HH:mm:ss yyyy", "EEE, dd-MMM-yyyy HH:mm:ss z",
        "EEE, dd-MMM-yyyy HH-mm-ss z", "EEE, dd MMM yy HH:mm:ss z",
        "EEE dd-MMM-yyyy HH:mm:ss z", "EEE dd MMM yyyy HH:mm:ss z",
        "EEE dd-MMM-yyyy HH-mm-ss z", "EEE dd-MMM-yy HH:mm:ss z",
        "EEE dd MMM yy HH:mm:ss z", "EEE,dd-MMM-yy HH:mm:ss z",
        "EEE,dd-MMM-yyyy HH:mm:ss z", "EEE, dd-MM-yyyy HH:mm:ss z",
        "E, dd-MMM-yyyy HH:mm:ss zzz", "EEEE, dd-MMM-yy HH:mm:ss zzz" }; 
    
    static class KdsCookieSpec extends BrowserCompatSpec {
        @SuppressWarnings("deprecation")
        public KdsCookieSpec() {
            super();
            registerAttribHandler(ClientCookie.EXPIRES_ATTR,
                    new BasicExpiresHandler(DATE_PATTERNS) {
                @Override
                public void parse(SetCookie cookie, String value)
                        throws MalformedCookieException {
                    super.parse(cookie, value);
                    
                    //Logger.d("tag", "KdsCookieSpec value:"+value);
                }
            });
        }
    }
}