android 客户端（非浏览器）怎么与服务器session保持同步会话

============问题描述============

小弟在做一个客户端的购物车功能，要获取到服务器session中保存的购物车列表，上传了sessionid却依旧没法获取到购物车，代码在下面：

String urlString = "http://192.168.1.128:8080/Pinzhuo04/servlet/ShowCartServlet";

HttpURLConnection httpURLConnection = (HttpURLConnection) new URL(

urlString).openConnection();

httpURLConnection.setRequestProperty("cookie", sessionid);

httpURLConnection.setConnectTimeout(5000);

httpURLConnection.setRequestMethod("POST");

if (httpURLConnection.getResponseCode() != -1) {

InputStream inputStream = httpURLConnection.getInputStream();

return XMLparse(inputStream);

}

============解决方案1============
http://blog.csdn.net/chindroid/article/details/7556363