FileDocCategorySizeDatePackage
SessionExample.javaAPI DocApache Tomcat 6.0.145246Fri Jul 20 04:20:32 BST 2007None

SessionExample

public class SessionExample extends HttpServlet
Example servlet showing request headers
author
James Duncan Davidson

Fields Summary
ResourceBundle
rb
Constructors Summary
Methods Summary
public voiddoGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)

    
       
                       
          
    
        response.setContentType("text/html");

        PrintWriter out = response.getWriter();
        out.println("<html>");
        out.println("<body bgcolor=\"white\">");
        out.println("<head>");

        String title = rb.getString("sessions.title");
        out.println("<title>" + title + "</title>");
        out.println("</head>");
        out.println("<body>");

        // img stuff not req'd for source code html showing
	// relative links everywhere!

        // XXX
        // making these absolute till we work out the
        // addition of a PathInfo issue 
	
        out.println("<a href=\"../sessions.html\">");
        out.println("<img src=\"../images/code.gif\" height=24 " +
                    "width=24 align=right border=0 alt=\"view code\"></a>");
        out.println("<a href=\"../index.html\">");
        out.println("<img src=\"../images/return.gif\" height=24 " +
                    "width=24 align=right border=0 alt=\"return\"></a>");

        out.println("<h3>" + title + "</h3>");

        HttpSession session = request.getSession(true);
        out.println(rb.getString("sessions.id") + " " + session.getId());
        out.println("<br>");
        out.println(rb.getString("sessions.created") + " ");
        out.println(new Date(session.getCreationTime()) + "<br>");
        out.println(rb.getString("sessions.lastaccessed") + " ");
        out.println(new Date(session.getLastAccessedTime()));

        String dataName = request.getParameter("dataname");
        String dataValue = request.getParameter("datavalue");
        if (dataName != null && dataValue != null) {
            session.setAttribute(dataName, dataValue);
        }

        out.println("<P>");
        out.println(rb.getString("sessions.data") + "<br>");
        Enumeration names = session.getAttributeNames();
        while (names.hasMoreElements()) {
            String name = (String) names.nextElement(); 
            String value = session.getAttribute(name).toString();
            out.println(HTMLFilter.filter(name) + " = " 
                        + HTMLFilter.filter(value) + "<br>");
        }

        out.println("<P>");
        out.print("<form action=\"");
	out.print(response.encodeURL("SessionExample"));
        out.print("\" ");
        out.println("method=POST>");
        out.println(rb.getString("sessions.dataname"));
        out.println("<input type=text size=20 name=dataname>");
        out.println("<br>");
        out.println(rb.getString("sessions.datavalue"));
        out.println("<input type=text size=20 name=datavalue>");
        out.println("<br>");
        out.println("<input type=submit>");
        out.println("</form>");

        out.println("<P>GET based form:<br>");
        out.print("<form action=\"");
	out.print(response.encodeURL("SessionExample"));
        out.print("\" ");
        out.println("method=GET>");
        out.println(rb.getString("sessions.dataname"));
        out.println("<input type=text size=20 name=dataname>");
        out.println("<br>");
        out.println(rb.getString("sessions.datavalue"));
        out.println("<input type=text size=20 name=datavalue>");
        out.println("<br>");
        out.println("<input type=submit>");
        out.println("</form>");

        out.print("<p><a href=\"");
	out.print(response.encodeURL("SessionExample?dataname=foo&datavalue=bar"));
	out.println("\" >URL encoded </a>");
	
        out.println("</body>");
        out.println("</html>");
        
        out.println("</body>");
        out.println("</html>");
    
public voiddoPost(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)

        doGet(request, response);