我在我的servlet中有以下代碼段。在這裏,出於某種原因,我無法在創建一個會話後爲同一用戶保留會話。HttpSession不起作用
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.setContentType("text/html");
PrintWriter writer = response.getWriter();
String userName = request.getParameter("userName");
HttpSession session = request.getSession();
if (userName != "" && userName != null) {
session.setAttribute("savedUserName", userName);
}
writer.println("Request parameter has user name as : " + userName + "<br />");
writer.println("Request session has user name as : " + (String) session.getAttribute("savedUserName") + "<br />");
}
你應該接受的答案你前面的問題的人回答你的問題。 – 2011-12-25 21:12:50