public class HttpPostRequestUtil {    public HttpPostRequestUtil() {    }    public static String post(String url, Map
     
       maps) {        // 第一步，创建HttpPost对象        HttpPost httpPost = new HttpPost(url);        // 设置HTTP POST请求参数必须用NameValuePair对象        List
      
        params = new ArrayList
       
        ();        if (params != null) {            Set
        
          keys = maps.keySet();            for (String key : keys) {                System.out.println(maps.get(key));                params.add(new BasicNameValuePair(key, maps.get(key)));                            }        }        //        params.add(new BasicNameValuePair("action", "downloadAndroidApp"));//        params.add(new BasicNameValuePair("packageId",//                "89dcb664-50a7-4bf2-aeed-49c08af6a58a"));//        params.add(new BasicNameValuePair("uuid", "test_ok1"));        HttpResponse httpResponse = null;        try {            // 设置httpPost请求参数            httpPost.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));            httpResponse = new DefaultHttpClient().execute(httpPost);            // System.out.println(httpResponse.getStatusLine().getStatusCode());            if (httpResponse.getStatusLine().getStatusCode() == 200) {                // 第三步，使用getEntity方法活得返回结果                String result = EntityUtils.toString(httpResponse.getEntity());                System.out.println("result:" + result);                return result;            }        } catch (ClientProtocolException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }        return null;    }        public static void main(String[] args) {                System.out.println(post("http://user.qzone.qq.com/876187500", null));    }}