//设置cookie
myApp appCookie = ((myApp)getApplication());
appCookie.setCookie(cookies);
//读取cookie
myApp appCookie = ((myApp)getApplicationContext());
cookies = appCookie.getCookie();
经过以上的步骤，android程序完成一个Web登录后就可以保持登录的状态了。
ps.
从一个httpclient取得statuscode的方法：
HttpResponse response = client.execute(mypost);
int statuscode = response.getStatusLine().getStatusCode();