1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19 package com.acme;
20 import java.io.IOException;
21
22 import javax.servlet.ServletException;
23 import javax.servlet.ServletOutputStream;
24 import javax.servlet.http.Cookie;
25 import javax.servlet.http.HttpServlet;
26 import javax.servlet.http.HttpServletRequest;
27 import javax.servlet.http.HttpServletResponse;
28
29
30
31
32
33
34
35 public class RewriteServlet extends HttpServlet
36 {
37
38 @Override
39 public void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
40 {
41 doGet(req, res);
42 }
43
44
45 @Override
46 public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
47 {
48 ServletOutputStream out = res.getOutputStream();
49 out.println("<html><body><table>");
50 out.println("<tr><th>Original request URI: </th><td>" + req.getAttribute("requestedPath") + "</td></tr>");
51 out.println("<tr><th>Rewritten request URI: </th><td>" + req.getRequestURI() + "</td></tr>");
52
53 Cookie cookie = null;
54 for(Cookie c: req.getCookies())
55 {
56 if (c.getName().equals("visited"))
57 {
58 cookie = c;
59 break;
60 }
61 }
62 if (cookie!=null)
63 out.println("<tr><th>Previously visited: </th></td><td>" + cookie.getValue()+"</td></tr>");
64
65 out.println("</table></body></html>");
66 }
67
68
69 @Override
70 public String getServletInfo()
71 {
72 return "Rewrite Servlet";
73 }
74 }