source: nutchez-0.1/tomcat/webapps/examples/servlets/sessions.html @ 215

Last change on this file since 215 was 66, checked in by waue, 15 years ago

NutchEz - an easy way to nutch

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17<html>
18<head>
19<title>Untitled Document</title>
20<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
21</head>
22
23<body bgcolor="#FFFFFF">
24<p><font color="#0000FF"><a href="servlet/SessionExample"><img src="images/execute.gif" align="right" border="0"></a><a href="index.html"><img src="images/return.gif" width="24" height="24" align="right" border="0"></a></font></p>
25<h3>Source Code for Session Example<font color="#0000FF"><br>
26  </font> </h3>
27<font color="#0000FF"></font> 
28<pre><font color="#0000FF">import</font> java.io.*;
29<font color="#0000FF">import</font> java.util.*;
30<font color="#0000FF">import</font> javax.servlet.*;
31<font color="#0000FF">import</font> javax.servlet.http.*;
32
33<font color="#0000FF">public class</font> SessionExample <font color="#0000FF">extends</font> HttpServlet {
34
35    <font color="#0000FF">public void</font> doGet(HttpServletRequest request, HttpServletResponse response)
36    <font color="#0000FF">throws</font> IOException, ServletException
37    {
38        response.setContentType(&quot;<font color="#009900">text/html</font>&quot;);
39        PrintWriter out = response.getWriter();
40       
41        HttpSession session = request.getSession(true);
42
43        <font color="#CC0000">// print session info</font>
44
45        Date created = new Date(session.getCreationTime());
46        Date accessed = new Date(session.getLastAccessedTime());
47        out.println(&quot;<font color="#009900">ID </font>&quot; + session.getId());
48        out.println(&quot;<font color="#009900">Created: </font>&quot; + created);
49        out.println(&quot;<font color="#009900">Last Accessed: </font>&quot; + accessed);
50
51        <font color="#CC0000">// set session info if needed</font>
52
53        String dataName = request.getParameter(&quot;<font color="#009900">dataName</font>&quot;);
54        if (dataName != null &amp;&amp; dataName.length() &gt; 0) {
55            String dataValue = request.getParameter(&quot;<font color="#009900">dataValue</font>&quot;);
56            session.setAttribute(dataName, dataValue);
57        }
58
59        // print session contents
60
61        Enumeration e = session.getAttributeNames();
62        while (e.hasMoreElements()) {
63            String name = (String)e.nextElement();
64            String value = session.getAttribute(name).toString();
65            out.println(name + &quot; <font color="#009900">= </font>&quot; + value);
66        }
67    }
68}</pre>
69</body>
70</html>
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