1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
public class ControllerServlet extends HttpServlet
{
Hashtable actions;
public void init() throws ServletException
{
initActions();
}
public void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException,IOException
{
doPost(req,resp);
}
public void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException,IOException
{
// Recupération de l'action
String actionName = req.getParameter("action");
if(actionName == null)
{
resp.sendError(HttpServletResponse.SC_NOT_ACCEPTABLE);
return;
}
// Instanciation de l'action à effectuer
Action action = (Action) actions.get(actionName);
if(action == null)
{
resp.sendError(HttpServletResponse.SC_NOT_IMPLEMENTED);
return;
}
// Lancement de l'action
action.perform(this, req, resp);
}
private void initActions()
// Table de hashage comprenant toutes les actions à effectuer
// Chacune de ces actions implémente l'interface Action
{
actions = new Hashtable();
actions.put("authenticate",new AuthenticateAction());
actions.put("logout",new LogoutAction());
actions.put("login",new LoginAction());
actions.put("indexation",new IndexationAction());
}
} |
