| Hongqing Liu | fd5ee81 | 2014-05-10 16:32:51 +0800 | [diff] [blame] | 1 | <!--
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| 2 | Licensed to the Apache Software Foundation (ASF) under one or more
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| 3 | contributor license agreements. See the NOTICE file distributed with
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| 4 | this work for additional information regarding copyright ownership.
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| 5 | The ASF licenses this file to You under the Apache License, Version 2.0
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| 6 | (the "License"); you may not use this file except in compliance with
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| 7 | the License. You may obtain a copy of the License at
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| 8 |
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| 9 | http://www.apache.org/licenses/LICENSE-2.0
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| 10 |
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| 11 | Unless required by applicable law or agreed to in writing, software
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| 12 | distributed under the License is distributed on an "AS IS" BASIS,
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| 13 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 14 | See the License for the specific language governing permissions and
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| 15 | limitations under the License.
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| 16 | -->
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| 17 | <html>
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| 18 | <head>
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| 19 | <title>Untitled Document</title>
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| 20 | <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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| 21 | </head>
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| 22 |
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| 23 | <body bgcolor="#FFFFFF">
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| 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>
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| 25 | <h3>Source Code for Session Example<font color="#0000FF"><br>
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| 26 | </font> </h3>
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| 27 | <font color="#0000FF"></font>
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| 28 | <pre><font color="#0000FF">import</font> java.io.*;
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| 29 | <font color="#0000FF">import</font> java.util.*;
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| 30 | <font color="#0000FF">import</font> javax.servlet.*;
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| 31 | <font color="#0000FF">import</font> javax.servlet.http.*;
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| 32 |
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| 33 | <font color="#0000FF">public class</font> SessionExample <font color="#0000FF">extends</font> HttpServlet {
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| 34 |
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| 35 | <font color="#0000FF">public void</font> doGet(HttpServletRequest request, HttpServletResponse response)
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| 36 | <font color="#0000FF">throws</font> IOException, ServletException
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| 37 | {
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| 38 | response.setContentType("<font color="#009900">text/html</font>");
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| 39 | PrintWriter out = response.getWriter();
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| 40 |
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| 41 | HttpSession session = request.getSession(true);
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| 42 |
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| 43 | <font color="#CC0000">// print session info</font>
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| 44 |
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| 45 | Date created = new Date(session.getCreationTime());
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| 46 | Date accessed = new Date(session.getLastAccessedTime());
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| 47 | out.println("<font color="#009900">ID </font>" + session.getId());
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| 48 | out.println("<font color="#009900">Created: </font>" + created);
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| 49 | out.println("<font color="#009900">Last Accessed: </font>" + accessed);
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| 50 |
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| 51 | <font color="#CC0000">// set session info if needed</font>
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| 52 |
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| 53 | String dataName = request.getParameter("<font color="#009900">dataName</font>");
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| 54 | if (dataName != null && dataName.length() > 0) {
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| 55 | String dataValue = request.getParameter("<font color="#009900">dataValue</font>");
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| 56 | session.setAttribute(dataName, dataValue);
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| 57 | }
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| 58 |
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| 59 | // print session contents
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| 60 |
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| 61 | Enumeration e = session.getAttributeNames();
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| 62 | while (e.hasMoreElements()) {
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| 63 | String name = (String)e.nextElement();
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| 64 | String value = session.getAttribute(name).toString();
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| 65 | out.println(name + " <font color="#009900">= </font>" + value);
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| 66 | }
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| 67 | }
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| 68 | }</pre>
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| 69 | </body>
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| 70 | </html>
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