public void service(HttpServletRequest req, HttpServletResponse res)
throws IOException, ServletException {
HttpSession sess = req.getSession(false);
sess.invalidate();
System.out.println("Session Closed");
res.sendRedirect("index.html");
}
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
res.setContentType("text/html");
PrintWriter out = res.getWriter();
Enumeration values = req.getParameterNames();
String name = "";
String value = "";
String id = "";
while (values.hasMoreElements()) {
name = ((String) values.nextElement()).trim();
value = req.getParameter(name).trim();
if (name.equals("id")) id = value;
}
if (url.equals("")) {
url = getServletContext().getInitParameter("url");
cas_url = getServletContext().getInitParameter("cas_url");
}
HttpSession session = null;
session = req.getSession(false);
if (session != null) {
session.invalidate();
}
res.sendRedirect(cas_url);
return;
}
/**
* this is the main method of the servlet that will service all get requests.
*
* @param request HttpServletRequest
* @param responce HttpServletResponce
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
HttpSession session = null;
try {
try {
session = request.getSession(true);
} catch (Exception e) {
Log.error(e, "PingSession2.doGet(...): error getting session");
// rethrow the exception for handling in one place.
throw e;
}
// Get the session data value
Integer ival = (Integer) session.getAttribute("sessiontest.counter");
// if there is not a counter then create one.
if (ival == null) {
ival = new Integer(1);
} else {
ival = new Integer(ival.intValue() + 1);
}
session.setAttribute("sessiontest.counter", ival);
// if the session count is equal to five invalidate the session
if (ival.intValue() == 5) {
session.invalidate();
}
try {
// Output the page
response.setContentType("text/html");
response.setHeader("SessionTrackingTest-counter", ival.toString());
PrintWriter out = response.getWriter();
out.println(
"<html><head><title>Session Tracking Test 2</title></head><body><HR><BR><FONT size=\"+2\" color=\"#000066\">HTTP Session Test 2: Session create/invalidate <BR></FONT><FONT size=\"+1\" color=\"#000066\">Init time: "
+ initTime
+ "</FONT><BR><BR>");
hitCount++;
out.println(
"<B>Hit Count: " + hitCount + "<BR>Session hits: " + ival + "</B></body></html>");
} catch (Exception e) {
Log.error(e, "PingSession2.doGet(...): error getting session information");
// rethrow the exception for handling in one place.
throw e;
}
} catch (Exception e) {
// log the excecption
Log.error(e, "PingSession2.doGet(...): error.");
// set the server responce to 500 and forward to the web app defined error page
response.sendError(500, "PingSession2.doGet(...): error. " + e.toString());
}
} // end of the method
/** @service the servlet service request. called once for each servlet request. */
public void service(HttpServletRequest servReq, HttpServletResponse servRes) throws IOException {
String name;
String value[];
String val;
servRes.setHeader("AUTHORIZATION", "user fred:mypassword");
ServletOutputStream out = servRes.getOutputStream();
HttpSession session = servReq.getSession(true);
session.setAttribute("timemilis", new Long(System.currentTimeMillis()));
if (session.isNew()) {
out.println("<p> Session is new ");
} else {
out.println("<p> Session is not new ");
}
Long l = (Long) session.getAttribute("timemilis");
out.println("<p> Session id = " + session.getId());
out.println("<p> TimeMillis = " + l);
out.println("<H2>Servlet Params</H2>");
Enumeration e = servReq.getParameterNames();
while (e.hasMoreElements()) {
name = (String) e.nextElement();
value = servReq.getParameterValues(name);
out.println(name + " : ");
for (int i = 0; i < value.length; ++i) {
out.println(value[i]);
}
out.println("<p>");
}
out.println("<H2> Request Headers : </H2>");
e = servReq.getHeaderNames();
while (e.hasMoreElements()) {
name = (String) e.nextElement();
val = (String) servReq.getHeader(name);
out.println("<p>" + name + " : " + val);
}
try {
BufferedReader br = servReq.getReader();
String line = null;
while (null != (line = br.readLine())) {
out.println(line);
}
} catch (IOException ie) {
ie.printStackTrace();
}
session.invalidate();
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
HttpSession session = request.getSession();
String food = (String) session.getAttribute("FOOD");
String animal = request.getParameter("ANIMAL");
session.invalidate();
response.setContentType("text/html;charset=euc-kr");
PrintWriter out = response.getWriter();
out.println("<HEAD><TITLE>성격 테스트</TITLE></HEAD>");
out.println("<BODY>");
out.println("<H3>성격 테스트</H3>");
out.printf("당신은 %s와 %s를 좋아하는 성격입니다.", food, animal);
out.println("</BODY>");
out.println("</HTML>");
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// tengo que eliminar al usuario de la sesión
HttpSession session = request.getSession(false);
String next = "/error.html";
if (session != null) {
User user = (User) session.getAttribute("user");
session.removeAttribute("user");
session.invalidate();
next = "/login.html"; // JSP destino
}
RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(next);
dispatcher.forward(request, response);
}
/**
* Logout a Trade User Dispatch to the Trade Welcome JSP for display
*
* @param userID The User to logout
* @param ctx the servlet context
* @param req the HttpRequest object
* @param resp the HttpResponse object
* @param results A short description of the results/success of this web request provided on the
* web page
* @exception javax.servlet.ServletException If a servlet specific exception is encountered
* @exception javax.io.IOException If an exception occurs while writing results back to the user
*/
void doLogout(ServletContext ctx, HttpServletRequest req, HttpServletResponse resp, String userID)
throws ServletException, IOException {
String results = "";
try {
tAction.logout(userID);
} catch (java.lang.IllegalArgumentException e) { // this is a user error so I will
// forward them to another page, at the end of the page.
req.setAttribute("results", results + "illegal argument:" + e.getMessage());
// log the exception with an error level of 3 which means, handled exception but would
// invalidate a automation run
Log.error(
e,
"TradeServletAction.doLogout(...)",
"illegal argument, information should be in exception string",
"treating this as a user error and forwarding on to a new page");
} catch (Exception e) {
// log the exception and foward to a error page
Log.error(
e,
"TradeServletAction.doLogout(...):",
"Error logging out" + userID,
"fowarding to an error page");
// set the status_code to 500
throw new ServletException(
"TradeServletAction.doLogout(...)" + "exception logging out user " + userID, e);
}
HttpSession session = req.getSession();
if (session != null) {
session.invalidate();
}
Object o = req.getAttribute("TSS-RecreateSessionInLogout");
if (o != null && ((Boolean) o).equals(Boolean.TRUE)) {
// Recreate Session object before writing output to the response
// Once the response headers are written back to the client the opportunity
// to create a new session in this request may be lost
// This is to handle only the TradeScenarioServlet case
session = req.getSession(true);
}
requestDispatch(ctx, req, resp, userID, TradeConfig.getPage(TradeConfig.WELCOME_PAGE));
}
/**
* Creates a db connecton.
*
* @return true if OK, false if there's a problem
*/
private boolean createDbConnection(
HttpSession session, HttpServletRequest req, HttpServletResponse res) throws Exception {
// At this point a driver and connection may already be set
// up. So here it first tests if a connection can be made.
// If not, set params up, and test the setup.
if (ConnManager.getConn() == null) {
ConnManager.getInstance()
.setLoginParams(
session.getAttribute("dbtDbDriver"),
session.getAttribute("dbtDbUrl"),
session.getAttribute("dbtDbUser"),
session.getAttribute("dbtDbPassword"));
if (ConnManager.getConn() == null) {
Util.putMessagePage(res, "Cannot login to DBT database");
// Invalidates the session in case connection is "stuck" in error
session.invalidate();
return false;
}
}
return true;
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
boolean orderCompleted = true;
// Get the user's session and shopping cart
HttpSession session = request.getSession(true);
ResourceBundle messages = (ResourceBundle) session.getAttribute("messages");
ShoppingCart cart = (ShoppingCart) session.getAttribute("cart");
if (cart == null) {
cart = new ShoppingCart();
session.setAttribute("cart", cart);
}
// Update the inventory
try {
utx.begin();
bookDB.buyBooks(cart);
utx.commit();
} catch (Exception ex) {
try {
utx.rollback();
} catch (Exception e) {
System.out.println("Rollback failed: " + e.getMessage());
}
System.err.println(ex.getMessage());
orderCompleted = false;
}
// Payment received -- invalidate the session
session.invalidate();
// set content type header before accessing the Writer
response.setContentType("text/html");
response.setBufferSize(8192);
PrintWriter out = response.getWriter();
// then write the response
out.println(
"<html>" + "<head><title>" + messages.getString("TitleReceipt") + "</title></head>");
// Get the dispatcher; it gets the banner to the user
RequestDispatcher dispatcher = getServletContext().getRequestDispatcher("/banner");
if (dispatcher != null) {
dispatcher.include(request, response);
}
if (orderCompleted) {
out.println("<h3>" + messages.getString("ThankYou") + request.getParameter("cardname") + ".");
} else {
out.println("<h3>" + messages.getString("OrderError"));
}
out.println(
"<p> <p><strong><a href=\""
+ response.encodeURL(request.getContextPath())
+ "/bookstore\">"
+ messages.getString("ContinueShopping")
+ "</a> "
+ "</body></html>");
out.close();
}
/** Cracks the command and invokes the appropriate next screen */
public void doPost(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
try {
// Sets up session tracking
ServletContext context = getServletContext();
HttpSession session = req.getSession();
// Gets command, which says what button was pressed
String command = req.getParameter("command");
if (command == null) {
Util.putMessagePage(res, "Please go back and use a button");
return;
}
// "Exit" invalidates the session
if (command.equals("Exit")) {
Util.exitSession(session, res);
return;
}
// "Relogin" invalidates the session and starts over
if (command.equals("Relogin")) {
session.invalidate();
RequestDispatcher dispatcher = context.getRequestDispatcher(Util.BASE + "index.jsp");
dispatcher.forward(req, res);
return;
}
// At this point the session may be new, or may be already
// validated. If session is not valid, or if a login was
// specified, do a dbt database login, and validate the
// user's login.
if (!Util.isSessionValid(session, null) || req.getParameter("Username") != null) {
if (!createDbConnection(session, req, res)) return;
if (!validateLogin(session, req, res)) return;
}
// Shows the DBT_DB records
if (command.indexOf("Databases") > -1) {
RequestDispatcher dispatcher = context.getRequestDispatcher(Util.BASE + "ShowDbs.jsp");
dispatcher.forward(req, res);
return;
}
// Displays all the history records
if (command.indexOf("History") > -1) {
RequestDispatcher dispatcher = context.getRequestDispatcher(Util.BASE + "ShowHistory.jsp");
dispatcher.forward(req, res);
return;
}
// Changes the user's password
if (command.indexOf("Password") > -1) {
RequestDispatcher dispatcher =
context.getRequestDispatcher(Util.BASE + "ChangePassword.jsp");
dispatcher.forward(req, res);
return;
}
// Performs admin functions
if (command.indexOf("Admin") > -1) {
RequestDispatcher dispatcher = context.getRequestDispatcher(Util.BASE + "AdminFnc.jsp");
dispatcher.forward(req, res);
return;
}
Util.putMessagePage(
res, "<p>Dbtracker internal error<p>Unknown command in " + getServletInfo());
} catch (ServletException e) {
throw e;
} catch (IOException e) {
throw e;
} catch (Throwable t) {
Util.putExceptionPage(res, t);
}
}
