- Passing parameters across 2 servers 2007-07-13 - By mat
Back
Hi,
We have created two minimal seam projects based on seam-gen, each on a separate
server, with the following environment:
JBoss-seam 2.0 BETA1, with facelets;
JBoss-4 (See http://oss-4.ora-code.com).2.0.GA;
We need to pass authentication parameters from one server to another:
Users must authenticate in server1, by entering username and password. Upon
successful login; browser should redirect to other servers such as serverMain,
with the username and password passed as parameters.
I have implemented the following which redirects to serverMain home page
correctly:
| String url = "http:// serverMain:8080/MyMainApp/home.seam";
| FacesContext facesContext = FacesContext.getCurrentInstance();
| facesContext.getExternalContext().redirect(url);
|
However, I need to pass the authentication parameters, username and password,
from server1 to serverMain.
In server1, I have tried:
| String url = "http:// serverMain:8080/MyMainApp/home.seam";
| FacesContext facesContext = FacesContext.getCurrentInstance();
| facesContext.getExternalContext().redirect(url);
|
| //passing parameter
| HttpServletRequest req = (HttpServletRequest) facesContext
.getExternalContext().getRequest();
|
| HttpServletResponse res = (HttpServletResponse) facesContext
.getExternalContext().getResponse();
|
| req.setAttribute("username", value);
| //test 1
| //req.getRequestDispatcher(url).forward(req, res);
| //test 2
| req.getSession().getServletContext().getRequestDispatcher(url)
.forward(req, res);
|
To receive the passed parameters, on the serverMain, I have tried:
| @(protected)("userSession")
| @(protected)(ScopeType.SESSION)
| public class UserSession {
|
|
| public void init()
| {
| System.out.println("*** userSession ****** init called.");
|
| try {
|
| FacesContext facesContext = FacesContext.getCurrentInstance();
| HttpServletRequest req = (HttpServletRequest) facesContext
.getExternalContext().getRequest();
| String username = (String) req.getAttribute("username");
| System.out.println("req.getAttribute received == " +username);
|
| } catch (Exception ex) {
| ex.printStackTrace();
| }
| }
| }
|
|
But, when the init() method gets called, I get null for the username. I would
be grateful for any help ? much appreciated.
Many thanks.
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