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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><br /> <HTML><br /> <HEAD><br /> <%@ page<br /> language="java"<br /> contentType="text/html; charset=ISO-8859-1"<br /> pageEncoding="ISO-8859-1"<br /> %><br /> <META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><br /> <META name="GENERATOR" content="IBM WebSphere Studio"><br /> <TITLE>SessionObjects.jsp</TITLE><br /> </HEAD></p> <p><BODY><br /> <H1>Session Object List JSP</H1></p> <p>This JSP will dump information about the current HTTPSession.<br><br></p> <p><%@ page import="java.io.*,java.util.*,javax.servlet.*" session="false" %><br /> <%! public void dumpSession(HttpServletRequest request, JspWriter out) throws IOException {<br /> HttpSession session = request.getSession(false);<br /> Object ro = null ;</p> <p> out.println("Session ID from session.getID : "<br /> + session.getId() + "<br>");</p> <p> out.println("Session ID from getHeader: "<br /> + request.getHeader("Cookie") + "<br>"); </p> <p> Enumeration enum = session.getAttributeNames();<br /> if ( enum.hasMoreElements() )<br /> {<br /> int totalSize = 0;</p> <p> out.println("<h3>Session Objects:</h3>");<br /> out.println("<TABLE Border=/"2/" WIDTH=/"65%/" BGCOLOR=/"#DDDDFF/">");<br /> out.println("<tr><th>Name</th>");//<th>Object.toString()</th>");<br /> out.println("<th>Raw Bytes</th><th>Size (bytes)</th></tr>");<br /> while ( enum.hasMoreElements() )<br /> {<br /> String name = (String)enum.nextElement();</p> <p> Object sesobj = session.getAttribute(name) ;</p> <p> ObjectOutputStream oos = null;<br /> ByteArrayOutputStream bstream = new ByteArrayOutputStream();<br /> try {</p> <p> oos = new ObjectOutputStream(bstream);<br /> oos.writeObject(sesobj);<br /> }<br /> catch (Exception e) {<br /> e.printStackTrace();<br /> }<br /> finally {<br /> if (oos != null) {<br /> try {oos.flush();}<br /> catch (IOException ioe) {}<br /> try {oos.close();}<br /> catch (IOException ioe) {}<br /> }<br /> }</p> <p> ObjectInputStream ois = null;<br /> ro = null ;</p> <p> try {<br /> ois = new ObjectInputStream(new ByteArrayInputStream(bstream.toByteArray()));<br /> ro = ois.readObject();<br /> }<br /> catch (Exception e) {<br /> e.printStackTrace();<br /> }<br /> finally {<br /> if (ois != null) {<br /> try {ois.close();}<br /> catch (IOException ioe) {}<br /> }<br /> }</p> <p> totalSize += bstream.size();<br /> out.println("<tr>");<br /> out.println("<td>" + name + "</td>");<br /> // out.println("<td>" + session.getAttribute(name) + "</td>");<br /> out.println("<td>" + ro + "</td>");<br /> out.println("<td>" + bstream.size() + " bytes </td></tr>");<br /> }<br /> out.println("</table>");<br /> out.println("Total Bytes: " + totalSize + "<br><br>");<br /> } else {<br /> out.println("No objects in session");<br /> }<br /> }<br /> %><br /> <%<br /> response.setHeader("Pragma", "No-cache");<br /> response.setHeader("Cache-Control", "no-cache");<br /> response.setDateHeader("Expires",0);</p> <p> HttpSession session = request.getSession(false);<br /> if (session == null) {<br /> out.println("No session");<br /> } else {<br /> dumpSession(request, out);<br /> }</p> <p>%><br /> </BODY><br />
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