java从类调用servlet时,我的会话始终为空
我需要检查我的jsp站点上是否存在会话。我创建了一个servlet,在其doPost()
和doGet()方法中检查它
无论是从url(url/Servlet)调用它,还是在提交页面<form action="Servlet" method="post">
之后,它都可以工作
现在我需要从类中调用doPost()或doGet()方法。在这个论坛上阅读一些帖子,我得到了以下代码:
Sessione p = new Sessione(); //sessione is the servlet name
URL urlServlet = null;
urlServlet = new URL("url/Servlet");
HttpURLConnection servletConnection = (HttpURLConnection) urlServlet.openConnection();
servletConnection.setRequestMethod("POST");
servletConnection.setDoOutput(true);
ObjectOutputStream objOut = new ObjectOutputStream(servletConnection.getOutputStream());
objOut.writeObject(p);
objOut.flush();
objOut.close();
InputStream response = servletConnection.getInputStream();
问题是,如果我从一个类中调用这个servlet,我总是会发现我的会话是空的,即使它们不是空的
这是我的servlet的doPost()方法
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
PrintWriter out = response.getWriter();
HttpSession session = request.getSession(true);
out.println(session.getAttribute("loggato"));
}
共 (0) 个答案