HttpServletRequest Problem
Hi,
I have this code:
--------- BEGIN SERVLET CODE ------------
import javax.servlet.*;
import javax.servlet.http.*;
import java.text.*;
import java.io.*;
import java.util.*;
public class MyServlet extends HttpServlet implements Consts {
public void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException
StringBuffer htmlOut;
Enumeration en = req.getParameterNames();
htmlOut = new StringBuffer();
htmlOut.append("<html><body>Parameter Names:<br/>");
for (;en.hasMoreElements();) {
htmlOut.append((String)en.nextElement() + "<br/>");
htmlOut.append("Attribute Names:<br/>");
en = req.getAttributeNames();
for (;en.hasMoreElements();) {
htmlOut.append((String)en.nextElement() + "<br/>");
htmlOut.append("</body></html>");
PrintWriter respOut = resp.getWriter();
respOut.println(htmlOut);
respOut.close();
--------- END SERVLET CODE ------------... and this page:
--------- BEGIN PAGE SOURCE -----------
<html>
<body>
<form method="post" action="MyServlet" enctype="multipart/form-data">
<input type="hidden" name="hidden1" value="hidden1"/>
<input type="hidden" name="hidden2" value="hidden2"/>
<input type="submit"/>
</form>
</body>
</html>
--------- END PAGE SOURCE -------------What I want is to list the parameter names (and later the values). But the output I'm getting from these is:
Parameter Names:
Attribute Names:
I am expecting something like:
Parameter Names:
hidden1
hidden2
Attribute Names:
What's wrong with my codes? I'm using Tomcat on Debian Linux.
Please help! I'm getting desperate...
TIA
mat
Hi,
Thanks for pointing that out. Yes it worked fine without the enctype. And yes, I really need the multipart enctype (yes again, for uploading data).
Thanks again,
mat
The problem is that you use a multipart/form-data
enctype. If you remove it, it should work.
Now if you really need it (if you want to upload a
file for example), you'll have to use another method
to retrieve parameters. If this is the case, take a
look here : http://www.servlets.com/cos/index.html
it's the easiest way I know to deal with file upload.
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else
validateForExistingCourses();
function validateForExistingCourses()
flag="wait";
var trainerId=document.getElementById("trainerId").value;
var fromDate=document.getElementById("fromDate").value;
var toDate=document.getElementById("toDate").value;
var activityId=document.getElementById("activitySelect").value;
url="ajaxList.htm?actionType=checkBookedCoursesActivities&trainerId="+trainerId+"&fromDate="+fromDate+"&toDate="+toDate+"&activitySelect="+activityId;
what = "checkForPreBookedCoursesActivities(req.responseXML)";
doCallback(null);
function checkForPreBookedCoursesActivities(theXmlResponse)
// alert("in here in checking prebookedCourses");
if(theXmlResponse != null)
var isActivityExisting = theXmlResponse.getElementsByTagName('existingActivity')[0].text;
var isCourseExisting = theXmlResponse.getElementsByTagName('existingbookedcourse')[0].text;
if(isActivityExisting=="Y")
alert("Activity You are trying to book for Trainer already exists");
return false;
else if(isCourseExisting=="Y")
if(confirm('Conflict Message. The dates choosen conflict with a current booking. Do you want to override'))
window.open("/training1.1/secure/prebookedEvents.htm","clientwindow",'StatusBar', 'toolbar=yes,resizable=yes,scrollbars=yes,width=500,height=400,left=0,top=0');
return false;
else
document.bookActivityController.action="/training1.1/secure/bookActivityTrainer.htm?actionType=submitForm";
document.bookActivityController.submit();
function goHomePage()
window.location="/training1.1/secure/welcome.htm";
function showHideAmPm(divId)
if(document.bookActivityController.halfday.checked==true)
showDiv(divId);
else
hideDiv(divId);
function showDiv(divId)
var item = document.getElementById(divId);
alert("show item"+item);
if (item)
item.className='unhidden';
function hideDiv(divId)
var item = document.getElementById(divId);
alert("unhide item"+item);
if (item)
item.className='hidden';
function getActivitiesPm()
if(document.bookActivityController.am.checked==true)
document.bookActivityController.pm.checked=false;
flag="wait";
url="ajaxList.htm?actionType=activities&keyword=PM";
what = "setActivities(req.responseXML)";
doCallback(null);
document.bookActivityController.activityTimeSelect.value="halfday";
document.bookActivityController.activityTimeSubType.value="pm";
// alert("subType"+document.bookActivityController.activityTimeSubType.value);
function getActivitiesAm()
if(document.bookActivityController.pm.checked==true)
document.bookActivityController.am.checked=false;
flag="wait";
url="ajaxList.htm?actionType=activities&keyword=AM";
what = "setActivities(req.responseXML)";
doCallback(null);
document.bookActivityController.activityTimeSelect.value="halfday";
document.bookActivityController.activityTimeSubType.value="pm";
function getSingleDayActivities()
if(document.bookActivityController.singleday.checked==true)
document.bookActivityController.moredays.checked=false;
document.bookActivityController.halfday.checked=false;
hideDiv('partofhalfday');
document.bookActivityController.activityTimeSelect.value="fullday";
flag="wait";
url="ajaxList.htm?actionType=activities&keyword=FullDay";
what = "setActivities(req.responseXML)";
doCallback(null);
else
hideDiv('activitySelect');
function getMoreDaysActivities()
alert();
if(document.bookActivityController.moredays.checked==true)
document.bookActivityController.singleday.checked=false;
document.bookActivityController.halfday.checked=false;
hideDiv('partofhalfday');
document.bookActivityController.activityTimeSelect.value="moredays";
flag="wait";
url="ajaxList.htm?actionType=activities&keyword=FullDay";
what = "setActivities(req.responseXML)";
doCallback(null);
else
hideDiv('activitySelect');
showDiv('dateTo');
function setActivities(theXmlResponse)
//start filling the Venues Select boxes now
if(theXmlResponse != null)
var coursesBox=document.getElementById("activitySelect");
coursesBox.options.length=0;
var activityElementsLength=theXmlResponse.getElementsByTagName('activity').length;
var activityElementsArray=theXmlResponse.getElementsByTagName('activity');
//alert("length"+activityElementsLength+activityElementsArray);
for(x = 0; x < activityElementsLength; x++)
//coursesBox.options[coursesBox.options.length] = new Option(coursesElementsArray[x].firstChild.text, coursesElementsArray[x].lastChild.text);
var optn = document.createElement("OPTION");
optn.text = activityElementsArray[x].firstChild.text;
optn.value = activityElementsArray[x].lastChild.text;
coursesBox.options.add(optn);
if (activityElementsLength>0)
showDiv('activityTD');
flag="release";
</script>
<div id="content"><!-- Top story -->
<div id="topstory" class="box">
<div id="topstory-img"></div>
<!-- /topstory-img -->
<div id="topstory-desc">
<div id="topstory-title"><strong>BOOK Activity</strong></div>
<!-- /topstory-title -->
<div id="topstory-desc-in"></div>
<!-- /topstory-desc-in --></div>
<!-- /topstory-desc --></div>
<!-- /topstory -->
<div id="bodycontent">
<% int errorCount=0; %>
<spring:bind path="bookactivityevent.*">
<c:forEach items="${status.errorMessages}" var="error">
<B><font color="red">Error: <c:out value="${error}"/></font><B/>
<% errorCount++; %>
</c:forEach>
</spring:bind>
<form method="post" name="bookActivityController" action="<c:url value="/secure/bookActivityTrainer.htm"/>">
<table align="right" width="50%" border=0>
<input type="hidden" name="activityTimeSelect"/>
<input type="hidden" name="activityTimeSubType"/>
<tr>
<td align="left">
<INPUT TYPE="checkbox" NAME="halfday" onclick="showHideAmPm('partofhalfday')">Half Day
<div align="left "id="partofhalfday" class="hidden">
<INPUT TYPE="RADIO" NAME="am" onClick="getActivitiesAm()" value="am">AM <INPUT TYPE="RADIO" NAME="pm" onClick="getActivitiesPm()">PM <BR>
</div>
</td>
</tr>
<tr><td><INPUT TYPE="checkbox" NAME="singleday" onClick="getSingleDayActivities()"> Single Day</td>
</tr>
<tr>
<td><INPUT TYPE="checkbox" NAME="moredays" onClick="getMoreDaysActivities()"> More Days</td>
</tr>
<tr>
<td align="left" id="activityTD">Activity :
<c:set var="activityMap" value=${requestScope.activityMap}/>
<c:choose>
<c:when test="${activityMap = null}"
<spring:bind path="bookactivityevent.userSuppliedActivity.activity.activityId">
<select name="activitySelect" id="activitySelect" size="1"
STYLE="width: 150px">
<option value="Choose Activity" default>Choose Activity</option>
</select>
</spring:bind>
</c:when>
<c:otherwise>
<spring:bind path="bookactivityevent.userSuppliedActivity.activity.activityId">
<select name="activitySelect" id="activitySelect"
size="1" STYLE="width: 150px">
<option value="" default>Choose Activity</option>
<c:forEach var="activity" items="${activityMap}" varStatus="a">
<c:choose>
<c:when
test="${(bookactivityevent !=null) && (bookactivityevent.userSuppliedActivity.activity.activityId == activity.activityId)}">
<option value="<c:out value="${activity.activityId}"/>" selected><c:out
value="${activity.activityId}" /></option>
</c:when>
<c:otherwise>
<option value="<c:out value="${activity.activityId}"/>"><c:out
value="${activity.activity}"/>
</c:otherwise>
</c:choose>
</c:forEach>
</select>
</spring:bind>
</c:otherwise>
</c:choose>
</td>
</tr>
<tr>
<td align="left">Trainer:
<spring:bind path="bookactivityevent.userSuppliedActivity.trainer.trainerId">
<select name="trainerId" id="trainerId"
size="1" STYLE="width: 150px">
<option value="" default>Choose Trainer</option>
<c:forEach var="trainer" items="${trainers}" varStatus="a">
<c:choose>
<c:when
test="${(bookactivityevent !=null) && (bookactivityevent.userSuppliedActivity.trainer.trainerId == trainer.trainerId)}">
<option value="<c:out value="${trainer.trainerId}"/>" selected>
<c:out value="${trainer.firstName}"/> <c:out
value="${trainer.surName}" /></option>
</c:when>
<c:otherwise>
<option value="<c:out value="${trainer.trainerId}"/>"><c:out
value="${trainer.firstName}"/> <c:out
value="${trainer.surName}" /></option>
</c:otherwise>
</c:choose>
</c:forEach>
</select>
</spring:bind>
</td>
</tr>
<tr>
<td align="left" id="dateFrom">From Date
<spring:bind path="bookactivityevent.userSuppliedActivity.dateFrom">
<input type="text" name="dateFrom" value=""/>
</spring:bind>
<img
src="../design/cal.gif" width="16" height="16" border="0"
alt="Click Here to Pick up the date"></td>
</tr>
<tr>
<td align="left" id="dateTo" class="hidden">To Date
<spring:bind path="bookactivityevent.userSuppliedActivity.dateTo">
<input type="text" name="dateTo" value=""/>
</spring:bind>
<img
src="../design/cal.gif" width="16" height="16" border="0"
alt="Click Here to Pick up the date"></td>
</tr>
<tr>
<td align="left" colspan="2"><input type="submit" name="_target1" value="BookActivity"/></td>
<c:if test="${(bookactivityevent != null) && (not empty bookactivityevent.conflictBookings)}">
<td align="left" colspan="2"><input type="submit" name="_target2" value="OverRideBookings"/></td>
</c:if>
<td align="left" colspan="2"><input type="button" name="Cancel"
value="Cancel" onClick="goHomePage();" /></td>
</tr>
</table>
</form>
</div>
<hr class="noscreen"/>
<div class="content-padding"></div>
<script language="JavaScript">
var cal1 = new calendar1(document.bookActivityController.elements['dateFrom']);
cal1.year_scroll = true;
cal1.time_comp = false;
var cal2 = new calendar1(document.bookActivityController.elements['dateTo']);
cal2.year_scroll = true;
cal2.time_comp = false;
</script></div>
<!-- /content -->
package com.uk.nhs.training.controller;
import java.beans.PropertyEditorSupport;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.swing.text.html.HTMLDocument;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.util.StringUtils;
import org.springframework.validation.BindException;
import org.springframework.validation.Errors;
import org.springframework.validation.ValidationUtils;
import org.springframework.web.bind.ServletRequestDataBinder;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractWizardFormController;
import org.springframework.web.servlet.view.RedirectView;
import com.uk.nhs.training.contractUtility.ContractHtmlReader;
import com.uk.nhs.training.data.Activity;
import com.uk.nhs.training.data.ActivityMatrix;
import com.uk.nhs.training.data.BookActivityEvent;
import com.uk.nhs.training.data.Booking;
import com.uk.nhs.training.data.BookingDetails;
import com.uk.nhs.training.data.Client;
import com.uk.nhs.training.data.Course;
import com.uk.nhs.training.data.Trainer;
import com.uk.nhs.training.data.Venue;
import com.uk.nhs.training.data.ActivityTimeConstants;
import com.uk.nhs.training.service.ActivityMatrixService;
import com.uk.nhs.training.service.ActivityService;
import com.uk.nhs.training.service.BookingDetailsService;
import com.uk.nhs.training.service.BookingService;
import com.uk.nhs.training.service.ClientService;
import com.uk.nhs.training.service.CourseService;
import com.uk.nhs.training.service.TrainersService;
import com.uk.nhs.training.service.VenueService;
public class BookActivityController extends AbstractWizardFormController {
protected final Log logger = LogFactory.getLog(getClass());
private BookingService bookingFacade;
private BookingDetailsService bookingDetailsFacade;
private CourseService courseFacade;
private VenueService venueFacade;
private ClientService clientFacade;
private ActivityMatrixService activityMatrixFacade;
private ActivityService activityFacade;
private TrainersService trainersFacade;
private SimpleDateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy");
public BookActivityController() {
setCommandClass(BookActivityEvent.class);
setCommandName("bookactivityevent");
setBindOnNewForm(true);
protected Object formBackingObject(HttpServletRequest request)
throws Exception {
BookActivityEvent bookActivityEvent = new BookActivityEvent();
ActivityMatrix activityMatrix = new ActivityMatrix();
activityMatrix.setActivity(new Activity());
activityMatrix.setTrainer(new Trainer());
List<Booking> bookingList = new ArrayList<Booking>();
bookActivityEvent.setUserSuppliedActivity(activityMatrix);
bookActivityEvent.setConflictBookings(bookingList);
return bookActivityEvent;
public Map referenceData(HttpServletRequest request, Object command, Errors errors, int Page)
List trainers = trainersFacade.loadTrainers();
Map trainersActivitiesMap = new HashMap();
trainersActivitiesMap.put("trainers", trainers);
return trainersActivitiesMap;
protected ModelAndView processFinish(HttpServletRequest request,
HttpServletResponse response, Object command, BindException errors) {
try {
ActivityMatrix activity = (ActivityMatrix) command;
activityMatrixFacade.saveActivityMatrix(activity);
logger.info("Activity is successfully saved for the trainer");
} catch (Exception e) {
e.getClass();
e.printStackTrace();
return new ModelAndView("bookSuccess");
@Override
protected void initBinder(HttpServletRequest request, ServletRequestDataBinder binder) throws Exception {
dateFormat.setLenient(true);
binder.registerCustomEditor(java.sql.Date.class, "dateFrom", new SqlDateEditor(true));
binder.registerCustomEditor(java.sql.Date.class, "dateTo", new SqlDateEditor(false));
binder.registerCustomEditor(java.sql.Date.class, null, new SqlDateEditor(true));
protected ModelAndView handleInvalidSubmit(HttpServletRequest request,
HttpServletResponse response) throws Exception {
return new ModelAndView("bookInvalidSubmit");
@Override
protected ModelAndView processCancel(HttpServletRequest request,
HttpServletResponse response, Object command, BindException errors)
throws Exception {
return new ModelAndView(new RedirectView("welcome.htm"));
@Override
protected void onBindAndValidate(HttpServletRequest request,
Object command, BindException errors, int page) throws Exception {
BookActivityEvent bookActivityEvent = (BookActivityEvent) command;
System.out.println(" PAGE : " + page);
try {
switch (page) {
case 0:
if (request.getParameter("_target1") != null) {
ActivityMatrix userActivityMatrix = bookActivityEvent.getUserSuppliedActivity();
buildActivityMatrix(request, bookActivityEvent);
validateActivityMatrix(bookActivityEvent, errors);
if (errors.getErrorCount() == 0)
Trainer trainer = (Trainer) trainersFacade.loadTrainersById(userActivityMatrix.getTrainer().getTrainerId());
bookActivityEvent.getUserSuppliedActivity().setTrainer(trainer);
Activity activity= (Activity) activityFacade.loadActivitiesById(userActivityMatrix.getActivity().getActivityId());
bookActivityEvent.getUserSuppliedActivity().setActivity(activity);
boolean activityExists = checkForExistingActivities(userActivityMatrix, errors);
if(!activityExists)
boolean bookingsExist = checkForBookedCourses(request, bookActivityEvent, errors);
if(bookingsExist)
// inject an error code so that it can be used in GUI
errors.rejectValue("dateFrom","invalid dates","Trainer has Bookings in conflict with the Supplied Activity Dates");
else
errors.rejectValue("dateFrom","Activity Dates supplied already exist");
break;
case 1:
if (request.getParameter("_target2") != null)
* Get the user supplied activitymatrix and try to get all the bookings which are in conflict for the trainer
List<Booking> conflictBookingsList = (List<Booking>)request.getSession().getAttribute("conflictBookingsList");
break;
default:
} catch (Exception e) {
System.err.println("Exception :" + e.getMessage());
super.onBindAndValidate(request, command, errors, page);
* @param request
* @param userActivity
* @param bookActivityEvent TODO
private ActivityMatrix buildActivityMatrix(HttpServletRequest request, BookActivityEvent bookActivityEvent) {
ActivityMatrix userActivity = bookActivityEvent.getUserSuppliedActivity();
userActivity.getTrainer().setTrainerId((String)(request.getParameter("trainerId")));
userActivity.getActivity().setActivityId((String)(request.getParameter("activitySelect")));
String activityTime = (String)request.getParameter("activityTimeSelect");
String activitySubType = (String)request.getParameter("activityTimeSubType");
if("fullday".equals(activityTime))
userActivity.getActivity().setTime(ActivityTimeConstants.FULLDAY.toString());
else if("moredays".equals(activityTime))
userActivity.getActivity().setTime(ActivityTimeConstants.MOREDAYS.toString());
else if("halfday".equals(activityTime)&& "am".equals(activitySubType))
userActivity.getActivity().setTime(ActivityTimeConstants.AM.toString());
else if("halfday".equals(activityTime)&& "pm".equals(activitySubType))
userActivity.getActivity().setTime(ActivityTimeConstants.PM.toString());
if(!("moredays".equals(activityTime)))
userActivity.setDateTo(bookActivityEvent.getDateFrom());
userActivity.setDateFrom(bookActivityEvent.getDateFrom());
bookActivityEvent.setUserSuppliedActivity(userActivity);
return userActivity;
* Create an empty Booking details for client and course...
* @param booking
private void setInitialBookingDetails(Booking booking, BindException errors) {
if (booking.getBookingType().equals("Client-Based")) {
if (booking.getClient() == null
|| booking.getClient().getClientId() == null) {
booking.setClient(new Client());
} else if (booking.getBookingType().equals("Staff")) {
booking.setClient(null);
if (booking.getBookingDetails() == null) {
List<BookingDetails> bkDetailsList = new ArrayList<BookingDetails>();
BookingDetails bkDetails = new BookingDetails();
bkDetails.setCourse(new Course());
bkDetailsList.add(bkDetails);
booking.setBookingDetails(bkDetailsList);
} else {
List bkDetList = booking.getBookingDetails();
if (bkDetList.size() < 1
|| (bkDetList.size() > 0 && !((bkDetList.get(0)) instanceof BookingDetails))) {
BookingDetails bkDetails = new BookingDetails();
bkDetails.setCourse(new Course());
bkDetList.add(0, bkDetails);
booking.setBookingDetails(bkDetList);
} else if (((BookingDetails) bkDetList.get(0)).getCourse() == null
|| ((BookingDetails) bkDetList.get(0)).getCourse()
.getCourseId() == null) {
((BookingDetails) bkDetList.get(0)).setCourse(new Course());
@Override
protected void validatePage(Object command, Errors errors, int page,
boolean finish) {
BookActivityEvent activityEvent = (BookActivityEvent) command;
if (finish) {
super.validatePage(command, errors, page);
* Validate client
* @param booking
* @param err
private boolean checkForExistingActivities(ActivityMatrix userSuppliedActivity, Errors err)
boolean exist = false;
List<ActivityMatrix> trainerActivityMatrixList = activityMatrixFacade.getActivityMatrixBetweenDateRange(userSuppliedActivity.getTrainer().getTrainerId(),
userSuppliedActivity.getDateFrom(), userSuppliedActivity.getDateTo());
if(ActivityTimeConstants.MOREDAYS.equals(userSuppliedActivity.getActivity().getTime()))
//checkForDates(trainerActivityMatrixList,);
else if(ActivityTimeConstants.FULLDAY.equals(userSuppliedActivity.getActivity().getTime()))
// checkForDates(trainerActivityMatrixList,);
else if(ActivityTimeConstants.AM.equals(userSuppliedActivity.getActivity().getTime()) ||
ActivityTimeConstants.PM.equals(userSuppliedActivity.getActivity().getTime()))
// checkForDates(trainerActivityMatrixList,);
return exist;
* Check for existing bookings for a trainer and sets them on event object
* @param request request.
* @param event event.
* @param err err.
* @return true- bookings exist else false.
private boolean checkForBookedCourses(HttpServletRequest request, BookActivityEvent event, Errors err)
List<Booking> conflictBookingsList = bookingFacade.loadBookingsByTrainerIdDateRange(event.getUserSuppliedActivity().getTrainer().getTrainerId(),
event.getUserSuppliedActivity().getDateFrom(),
event.getUserSuppliedActivity().getDateTo());
request.getSession().setAttribute("conflictBookingsList",conflictBookingsList);
if(conflictBookingsList!=null && conflictBookingsList.size()!=0)
event.setConflictBookings(conflictBookingsList);
return true;
else
return false;
* Validate client
* @param booking
* @param err
private void validateActivityMatrix(final BookActivityEvent activity, Errors err) {
// ValidationUtils.rejectIfEmptyOrWhitespace(err, "trainer.trainerId",
// "required.trainer.trainerId", "Valid trainer needs to be selected.");
//// ValidationUtils.rejectIfEmptyOrWhitespace(err, "activity.activityId",
//// "required.activity.activityId", "Valid activity needs to be selected.");
// if (err.getErrorCount() < 1)
// if (activity.getDateFrom() == null) {
// err.rejectValue("dateFrom", "required.dateFrom",
// "Valid Activity Start Date is required");
// try
// if (activity.getDateFrom() != null && activity.getDateTo() != null
// && (activity.getDateTo().before(activity.getDateFrom())))
// err.rejectValue("dateTo", "required.dateTo",
// "Activity End Date Should be after start date.");
// } catch (Exception ex) {
// err.rejectValue("dateFrom",
// "dateFrom",
// "Improper dates, please provide valid dates.");
* Validate Trainer
* @param booking
* @param e
private void validateTrainer(final Booking booking, Errors e) {
ValidationUtils.rejectIfEmptyOrWhitespace(e,
"bookingDetails[0].startDate",
"required.bookingDetails[0].startDate",
"Valid Booking Details startDate required.");
ValidationUtils.rejectIfEmptyOrWhitespace(e,
"bookingDetails[0].trainer.trainerId",
"required.bookingDetails[0].trainer.trainerId",
"Valid Booking Details Trainer required.");
if (e.getErrorCount() < 1)
for (BookingDetails bd : booking.getBookingDetails()) {
if (bd.getStartDate() == null) {
e.rejectValue("startDate", "required.bbb0",
"Valid Booking details Start Date is required");
try {
if (bd.getStartDate() != null && bd.getEndDate() != null
&& (bd.getEndDate().before(bd.getStartDate())))
e.rejectValue("endDate", "required.bbb0",
"End Date Should be after starting date.");
} catch (Exception ex) {
e.rejectValue("bookingDetails[0].startDate",
"before.bookingDetails[0].startDate",
"Improper dates, please provide valid dates.");
if (bd.getTrainer() != null) {
e.rejectValue("trianerId", "required.trianerId",
"Valid Trainer details required.");
public BookingService getBookingFacade() {
return bookingFacade;
public void setBookingFacade(BookingService bookingFacade) {
this.bookingFacade = bookingFacade;
public CourseService getCourseFacade() {
return courseFacade;
public void setCourseFacade(CourseService courseFacade) {
this.courseFacade = courseFacade;
public VenueService getVenueFacade() {
return venueFacade;
public void setVenueFacade(VenueService venueFacade) {
this.venueFacade = venueFacade;
public ClientService getClientFacade() {
return clientFacade;
public void setClientFacade(ClientService clientFacade) {
this.clientFacade = clientFacade;
public TrainersService getTrainersFacade() {
return trainersFacade;
public void setTrainersFacade(TrainersService trainersFacade) {
this.trainersFacade = trainersFacade;
* getter method for activityFacade.
* @return Returns the activityFacade.
public ActivityService getActivityFacade() {
return activityFacade;
* setter method for activityFacade.
* @param activityFacade The activityFacade to set.
public void setActivityFacade(ActivityService activityFacade) {
this.activityFacade = activityFacade;
* getter method for activityMatrixFacade.
* @return Returns the activityMatrixFacade.
public ActivityMatrixService getActivityMatrixFacade() {
return activityMatrixFacade;
* setter method for activityMatrixFacade.
* @param activityMatrixFacade The activityMatrixFacade to set.
public void setActivityMatrixFacade(ActivityMatrixService activityMatrixFacade) {
this.activityMatrixFacade = activityMatrixFacade;
* getter method for bookingDetailsFacade.
* @return Returns the bookingDetailsFacade.
public BookingDetailsService getBookingDetailsFacade() {
return bookingDetailsFacade;
* setter method for bookingDetailsFacade.
* @param bookingDetailsFacade The bookingDetailsFacade to set.
public void setBookingDetailsFacade(BookingDetailsService bookingDetailsFacade) {
this.bookingDetailsFacade = bookingDetailsFacade;
class SqlDateEditor extends PropertyEditorSupport {
private boolean isRequired = false;
SqlDateEditor(boolean isRequired) {
this.isRequired = isRequired;
public void setAsText(String text) throws IllegalArgumentException {
java.util.Date d = null;
if (!this.isRequired && !StringUtils.hasText(text)) {
setValue(null);
else
try {
d = dateFormat.parse(text);
setValue(new java.sql.Date(d.getTime()));
} catch (ParseException ex) {
throw new IllegalArgumentException("Could not parse date: " + ex.getMessage());
public String getAsText() {
Date value = (java.sql.Date)getValue();
if (value != null) {
java.util.Date d = new java.util.Date(value.getTime());
return dateFormat.foThis topic is hopeless. Too much unnecessary code. Unformatted code. No question. No requirements. No step-by-step explanation how to reproduce problem. No expectations. No unexpectations/errors.
Please read this how to get better help. -
Problem With Deploying a very simple Servlet
HELP REQUIRED:
Hi,
I'm including code of a very simple Servlet application (I shd not call it an application):
index.html
==========
<html><body bgcolor="#FFFFFF">
<head>
<title> Rajeev Asthana </title>
<form action = "/HelloWorldApp/HelloWorld" method = "POST" >
Please press Submit
<input type = "submit" value = "Press Me!">
</form>
</body></html>
HelloWorld.java
===============
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class HelloWorld extends HttpServlet {
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<html><body bgcolor=\"#FFFFFF\">");
out.println("<p>Hello World!</p>");
out.println("</body></html>");
out.close();
web.xml
========
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" version="2.4" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>HelloWorldApp</display-name>
<servlet>
<display-name>HelloWorld</display-name>
<servlet-name>HelloWorld</servlet-name>
<servlet-class>HelloWorld</servlet-class>
</servlet>
</web-app>
sun-web.xml
===========
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sun-web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Application Server 8.0 Servlet 2.4//EN" "http://www.sun.com/software/appserver/dtds/sun-web-app_2_4-0.dtd">
<sun-web-app xmlns="http://java.sun.com/xml/ns/j2ee">
<context-root>/HelloWorldApp</context-root>
<session-config>
<session-manager persistence-type="memory">
<manager-properties/>
<store-properties/>
</session-manager>
<session-properties/>
<cookie-properties/>
</session-config>
<cache enabled="false" max-entries="4096" timeout-in-seconds="30">
<default-helper/>
</cache>
<class-loader delegate="true"/>
<jsp-config/>
</sun-web-app>
I have deployed it in following directory structure:
C:\Sun\AppServer\domains\domain1\applications\j2ee-modules\HelloWorldApp\
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META-INF WEB-INF HelloWorld.java index.html
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classes sun-web.xml web.xml sun-j2ee-ri-project
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HelloWorld.class
While generating HelloWorldApp.war (which is the war file for this app), I specifies /HelloWorldApp as context root (sun specific).
Now, when I deployed it thru Admin Tool and then clicked on "Launch", it displays a page with :
Please press Submit Press Me!
But when I click the button "Press Me!", it says:
"The requested resource (/HelloWorldApp/HelloWorld) is not available."
What should I do to correct the problem?
Thanks in advance.
Yes, you need to add a servlet -mapping element and adjust your form to submit to the appropriate URL mapping.
<servlet-mapping>
<servlet-name>HelloWorldServlet</servlet-name>
<url-pattern>/servlet/Hello</url-pattern>
</servlet-mapping> -
I don't know where the problem originate, the only thing in my memory is that the program worked very well on my PC yesterday, but today, without even slightest change, it doesn't work anymore. As to debug it, I simplified the codes to the least, but it still refuse to work. I was beaten down by this problem totally, and cannot make out any solution for it, so, I come here, hoping to find a warrior to kill this damned bug for me.
My program is a Servlet, but for the purpose of debugging, I have recode it to an Application/Servlet. When run as a application, I can get the result expected, but as a Servlet, :-(, maybe you should see it by yourself. My server software is Tomcat 4.1.15, and the JDK version is 1.4.0. To excute this program, you should add Data Source "Test" to ODBC.
///////////////////////code begins/////////////////////////
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
public class Ex extends HttpServlet
int ErrorType = 0;
String err = new String("");
public static void main(String args[]) throws Exception{
Ex cEx = new Ex();
cEx.init();
System.out.println(cEx.ErrorType);
public void init() {
String url = "jdbc:odbc:Test";
ErrorType = 3; //passed
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
} catch (ClassNotFoundException e) {
e.printStackTrace();
ErrorType = 1; //trapped in Class.forName
try{
Connection c = DriverManager.getConnection(url);
} catch (SQLException e) {
e.printStackTrace();
ErrorType = 2; //trapped in DriverManager.getConnection
err = e.getMessage();
public void service(HttpServletRequest req, HttpServletResponse res)
throws IOException {
res.setContentType("text/html; charset=GB2312");
PrintWriter out = res.getWriter();
out.println("Success " + "<p>" + ErrorType + "<p>" +err);
out.close();
//////////////////////////code ends///////////////////////////////
The result from the Servlet tell me that the problem occurred within the connection process, I don't know who should be responsible to this - Tomcat or JDBC?If you could print the exception that you got then that would help :) In the mean time, I could make a guess. It is unlikely that your application server (in this case, Tomcat) is blocking connections from your servlet. So the problem is either with JDBC directly or with the underlying datasource. It seems unlikely that it is JDBC given that you have stated that the code has not changed and it works in application form.
My guess would be that you are coming up against some sort of security constraint (eg: your DBMS is letting you log in from one IP but not another?, your Java plug-in security policy is disallowing the connection?). It's hard to say.
But if it works as an application but not via a servlet then you could try putting this in your java.policy file, which is located in the directory where your plug-ins are installed (eg: "C:\Program Files\Java\<version>\lib\security\") on Windows systems;
permission java.net.SocketPermission "bend xp:1099", "listen,connect,accept";
Try that, see if it works :)
Ben -
Problem with languages in a servlet
I've created a guestbook servlet that receives requests from an HTML page. When checked it worked fine.
The problems started then I tried to add entries in other languages to the Database. I've noticed that my characters for some reason were replaced with question-marks (?).
The funny part is that when I try to print the '?'s to the response, it gets converted back to letters. The problem is that if I want to work with the text (for instance using String.charAt()) I get only '?'s.
Even worse, when added to the Database and retrieved back, the '?'s don't get converted back to letters anymore! So my output page is full of ????????-???? ???-?????.
I am clueless! maybe it's something with the HTML form, maybe the character-set, I don't know.
Please help, it's urgent. (P.S. The other language is Hebrew)sorry for nagging , but i seem to have a similar problem , and i am looking for more detaied solution:
the problem is with encoding and decoding, from a servlet , running on Tomcat , to Oracle DB.
I hope it is the right forum for that , and i appologize if ti is not ..
The problem:
I am using Oracle 8.1.7 DB , in a Charest ISU 8859-9-8 ( Hebrew ), I use a thin client as the JDBC driver .
I have a servlet that all it does is getting and updating one of the table
The character set in the servlet is too , ISO 8859-8 . This is done this way:
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("ISO-8859-8");
response.setContentType("Text/html; ISO-8859-8");
I use the doGet method of a servlet to get parameters to retrieve from Oracle. this is done through the URL, for example :
I send the parameters like this : http://localhost:8080/myapp/myapp?name=yair&family=fine
for name= yair, family = fine
There is no problem in getting and inserting English characters.
There is a problem when i try to get or to insert Hebrew characters.
i get ???? in DB , for both if i write yair in the url in Hebrew , or i write yair in %E9%E9%E9%F8 which is the decimal representation
For example , if i insert a string in Hebrew , it looks like this "?????" ( in SQL +)
this is how i get the requests from the url
Enumeration paramEnum = request.getParameterNames(); // get request parameters from the url , in param/value pairs
String myParam = (String) paramEnum.nextElement(); //get parameter
String myValue = request.getParameter(myParam); //get value
String myStatment = "insert into mytable values('19', '"+myValue+"')" insert to table 19 , myvalue
ResultSet rs = stmt.executeQuery(myStatment);
does any one have a solution for that ? -
Problems with the Proxy Programme--Please help
Hi All,
I have written a simple proxy server in the form of a servlet. I changed the proxy config of my browser to connect to this servlet hosted on the default context(http://localhost:8080) of the Tomcat 5.0.25 . Well , this servlet internally connects to the proxy of the corporate LAN . The logic that I have applied is as follows. The servlet gets the request from the client (ie the browser in this case) , extracts the headers and contents from the request, sets them to a new request that it forms and finally send this new request to the proxy. When the proxy responds, the servlet collects the response headers and contents adn writes them in its response. To sum up , this servlet transparently carries the requests and responses between the client(browser) and the corporate LAN proxy. Now the problem is this. Let's say , now I am accessing http://www.google.com.The browser sends a request to my servlet with the following headers as they are extracted by my servlet.
ProxyServer:::>posting request
ProxyServer:::>headerValue::> headerName = accept : headerValue=*/*
ProxyServer:::>headerValue::> headerName = referer : headerValue=http://www.google.com/
ProxyServer:::>headerValue::> headerName = accept-language : headerValue=en-us
ProxyServer:::>headerValue::> headerName = proxy-connection : headerValue=Keep-Alive
ProxyServer:::>headerValue::> headerName = user-agent : headerValue=Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; UB1.4_IE6.0_SP1; .NET CLR 1.0.3705; .NET CLR 1.1.4322)
ProxyServer:::>headerValue::> headerName = host : headerValue=www.google.com
ProxyServer:::>headerValue::> headerName = cookie : headerValue=PREF=ID=1be27c0a74f198ca:TM=1082058853:LM=1082058853:S=bu6ORrygzm8AUkm8
ProxyServer:::>postRequest
I set these headers into a new connection opened to the proxy and post a fresh request to the proxy,which, in turn responds with the following headers.
ProxyServer:::>posted request successfully
ProxyServer:::>writing response
ProxyServer:::>writeResponse-->headerName = Proxy-Connection : headerValue = [close]
ProxyServer:::>writeResponse-->headerName = Content-Length : headerValue = [257]
ProxyServer:::>writeResponse-->headerName = Date : headerValue = [Tue, 13 Jul 2004 14:01:40 GMT]
ProxyServer:::>writeResponse-->headerName = Content-Type : headerValue = [text/html]
ProxyServer:::>writeResponse-->headerName = Server : headerValue = [NetCache appliance (NetApp/5.5R2)]
ProxyServer:::>writeResponse-->headerName = Proxy-Authenticate : headerValue = [Basic realm="Charlotte - napxyclt2"]
ProxyServer:::>writeResponse-->headerName = null : headerValue = [HTTP/1.1 407 Proxy Authentication Required]
ProxyServer:::>writeResponse exiting
ProxyServer:::>wrote response successfully
I write these headers back to the client. According to what I was thinking, the client ie the browser would open a new dialog box asking for username/password owing to the presence of the "Proxy-Authenticate " header. But it does not happen that way. Rather the browser stops responsding and displays a blank page. Does anyone know why it happens this way? I am pasting the server prog below for everybody's reference.
package server.proxy;
//import all servlet related classes
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;
import java.io.*;
import java.net.*;
import server.resources.*;
//My Proxy server --->Currently it is very simplea and relies on
//other proxy servers of an already connected network.
public class ProxyServer extends HttpServlet
//stores the resource bundle
private ServerResBundle resBundle = null;
//checks for the mode of operation
private boolean proxySet = false;
private String proxy = null;
//storing the original System out/err etc
private PrintStream sysOutOrig = null;
private PrintStream sysErrOrig = null;
private InputStream sysInOrig = null;
//initialise certain features that are required later
public void init() throws ServletException
try
//initialise the resource bundle
this.initResBundle();
System.out.println("ProxyServer:::>res bundle init");
//set the mode of operation
this.setMode();
System.out.println("ProxyServer:::>mode set");
//set the system out and err --System.setOut etc
this.setSystemOutErr();
System.out.println("ProxyServer:::>in/out/err set");
}//End try
catch(Exception e)
System.out.println("Exception in init..."+(e.getMessage()));
throw new ServletException(e);
}//Edn
catch(Throwable e)
System.out.println("Irrecoverable Error...");
throw new ServletException(e);
}//End
}//End init
//method to init the resource bundle;
private void initResBundle()
this.resBundle = ServerResBundle.getBundle();
}//End
//method to set the mode of the server--proxy or direct
private void setMode()
//read the target proxy property from the bundle and
//if it is set,take that URL
String temp = (String)(this.resBundle.getResource(ResKeys.PROXY_SERVER));
if ( (temp != null) && (temp.length() > 0) )
this.proxySet = true;
this.proxy = temp;
temp = null;
}//End
}//End
//method to set the system out and err etc
private void setSystemOutErr() throws Exception
//keep a copy of the original system out and error
this.sysOutOrig = System.out;
this.sysErrOrig = System.err;
try
//read the options adn if they are set, take the values directly
String newOutStr = (String)(this.resBundle.getResource(ResKeys.SYSTEM_OUT));
String newErrStr = (String)(this.resBundle.getResource(ResKeys.SYSTEM_ERR));
if ((newOutStr != null) && (newOutStr.length() > 0))
System.setOut(new PrintStream(new FileOutputStream(new File(newOutStr),true),true));
}//End if
if ((newErrStr != null) && (newErrStr.length() > 0))
System.setErr(new PrintStream(new FileOutputStream(new File(newErrStr),true),true));
}//End if
}//End
catch(Exception e)
//restore the stuff
System.setOut(this.sysOutOrig);
System.setErr(this.sysErrOrig);
}//End
}//End
//this is where the proxy functionalities will be embedded
public void service(HttpServletRequest req,HttpServletResponse resp)
throws ServletException,java.io.IOException
//conenction URL
URL target = null;
//conenction to the remote object
URLConnection targetConn = null;
//stores the OOS and the OIS
ObjectOutputStream oos = null;
ObjectInputStream ois = null;
try
//check for the mode of operation
if (proxySet)
URLConnection objects go through two phases: first they are created, then they are connected.
After being created, and before being connected, various options can be specified
(e.g., doInput and UseCaches). After connecting, it is an error to try to set them.
Operations that depend on being connected, like getContentLength, will implicitly perform the connection,
if necessary.
//for the URL to the proxy
target=new URL(this.proxy);
//conenct to the proxy
targetConn = target.openConnection();
//set the details of the connectuon
targetConn.setDoInput(true);
targetConn.setDoOutput(true);
targetConn.setUseCaches(false);
// If true, this URL is being examined in a context in which it makes sense to allow user interactions such as popping up an authentication dialog. If false, then no user interaction is allowed
targetConn.setAllowUserInteraction(true);
//connect to the remote object
// targetConn.connect();//call this only when all the request properties are set
System.out.println("ProxyServer:::>posting request");
//post the received request to the URL
this.postRequest(targetConn,req);
System.out.println("ProxyServer:::>posted request successfully");
System.out.println("ProxyServer:::>writing response");
//receive the response
//write the received response to the client
this.writeResponse(targetConn,resp);
System.out.println("ProxyServer:::>wrote response successfully");
}//End if
else
//currently this functionality is not supported
throw new ServletException(
(String)(this.resBundle.getResource(ResKeys.ERR_FUNC_NOTSUPPORTED)));
}//End
}//End try
catch(Exception e)
if(e instanceof ServletException)
throw (ServletException)e;
}//End
if (e instanceof IOException)
throw (IOException)e;
}//End
//wrap it up in ServletException
throw new ServletException(e);
}//End
}//End
//method to write the response back to the client
private void writeResponse(URLConnection targetConn,HttpServletResponse resp)
throws ServletException
//get all the header fields from the response connection and set them to the
//response of the servlet
Map headerFields = null;
Iterator headerFieldEntries = null;
Map.Entry header = null;
//stores the input stream to the conn
BufferedReader brConn = null;
//stores the writer to the response
PrintWriter prResp = null;
//checks if the proxy authentication needed or not
boolean proxyAuthReqd = false;
try
//juste ensuring that the proxy authentication is reset
proxyAuthReqd = false;
if( (targetConn != null) && (resp != null) )
//Returns an unmodifiable Map of the header fields.
//The Map keys are Strings that represent the response-header field names.
//Each Map value is an unmodifiable List of Strings that represents the corresponding
//field values
headerFields = targetConn.getHeaderFields();
//Returns a set view of the mappings contained in this map
Set temp = headerFields.entrySet();
//Returns an iterator over the elements in this set
headerFieldEntries = temp.iterator();
if (headerFieldEntries != null)
while (headerFieldEntries.hasNext())
Object tempHeader = headerFieldEntries.next();
if (tempHeader instanceof Map.Entry)
header = (Map.Entry)tempHeader;
Object headerName = header.getKey();
Object headerValue=header.getValue();
System.out.println("ProxyServer:::>writeResponse-->headerName = "+headerName+" : headerValue = "+headerValue);
//do not select the key-value pair if both the key adn the value are null
if ( ( headerName == null) && (headerValue == null) )
continue;
}//Enmd
if (headerValue != null)
List headerValList = null;
if (headerValue instanceof List)
headerValList = (List)headerValue;
}//End
if(headerValList != null)
for (int i=0;i<headerValList.size();i++)
Object headerValueStr = headerValList.get(i);
if (headerValueStr instanceof String)
//note that the header-key can not be null for addHeader
//I have made this temporary provision to make the programme work.
resp.addHeader(( (headerName==null)? ("null_header"+i) :(String)headerName),
(String)headerValueStr);
//check if the proxy authentication required or not
if (((String)headerValueStr).
indexOf(resp.SC_PROXY_AUTHENTICATION_REQUIRED+"") != -1)
System.out.println("ProxyServer:::>writeResponse-->proxy auth needed");
//proxy authentication is needed
proxyAuthReqd = true;
}//End
}//Ednd of
else if (headerValueStr == null)
resp.addHeader(( (headerName==null)? null :(String)headerName),
null);
}//End
}//End for
}//End if
}//End if
}//End
}//End while
}//End if
//get the writer to the client
prResp = resp.getWriter();
System.out.println("ProxyServer:::>writeResponse-->proxyAuthReqd="+proxyAuthReqd);
//juste test a simple header
System.out.println("Proxy-Authenticate = "+(resp.containsHeader("Proxy-Authenticate")));
//if the proxy asks you for authentication,pass on the same to the client
//from whom you have received the request.When this flag is true,the connection
//is closed by the remotehost adn hence any attempt to open in input steram
//results in an error ie IOException
if (!proxyAuthReqd)
//now get the content adn write it to the response too
brConn = new BufferedReader(new InputStreamReader(
targetConn.getInputStream()));
String tempStr = null;
while ((tempStr = brConn.readLine())!=null)
prResp.println(tempStr);
}//End while
//close the connections
brConn.close();
}//End if
else
prResp.println("Proxy Authentication needed...");
}//End
//close the streams
prResp.flush();
prResp.close();
}//End if
System.out.println("ProxyServer:::>writeResponse exiting\n");
}//End try
catch(Exception e)
throw new ServletException(e);
}//End
}//End
//method to post request to the internet
private void postRequest(URLConnection targetConn,HttpServletRequest req)
throws ServletException
//extract the header parameters and the body content from the incoming request
//and set them to the new connection
Enumeration reqHeaders = null;
//reads the incoming request's content
BufferedReader brReqRd = null;
PrintWriter prResWt = null;
//stores temp header names and values
String headerName = null;
String headerValue = null;
try
if( (targetConn != null) && (req != null) )
reqHeaders = req.getHeaderNames();
//extract a header adn set it to the new connection
while (reqHeaders.hasMoreElements())
headerName = (String)(reqHeaders.nextElement());
headerValue = req.getHeader(headerName);
targetConn.setRequestProperty(headerName,headerValue);
System.out.println("ProxyServer:::>headerValue::> headerName = "+headerName+" : headerValue="+headerValue);
}//End
System.out.println("ProxyServer:::>postRequest\n");
//establis the actual connection
//calling this method bfore the above loop results in IllegalStateException
targetConn.connect();
//NOTE : try reading from and writing into OIS and OOS respectively
//now read the contents and write them to the connection
// brReqRd = req.getReader(); //this hangs for some reason
brReqRd = new BufferedReader(new InputStreamReader(req.getInputStream()));
System.out.println("Got the reader..brReqRd = "+brReqRd);
if (brReqRd != null)
String temp = null;
//establish the printwriter
// prResWt = new PrintWriter(targetConn.getOutputStream(),true);
prResWt = new PrintWriter(targetConn.getOutputStream());
System.out.println("trying to read in a loop from brReqRd.. ready="+(brReqRd.ready()));
while( (brReqRd.ready()) && ((temp=brReqRd.readLine()) != null) )
System.out.println("In while::>temp = "+temp);
prResWt.println(temp);
}//Emd while
//close the streams adn go back
brReqRd.close();
prResWt.flush();
prResWt.close();
}//End
}//End outer if
System.out.println("ProxyServer:::>postRequest exiting\n");
}//End try
catch(Exception e)
throw new ServletException(e);
}//End
}//End
}//EndHi serlank ,
Thanks for your reply. Well , I initially I thought of not pasting the code,as it was too long. But I could not help it,as I thought I must show in code what I exactly meant. That's why I followed a description of my problem with the code. You could probably have copied the code and pasted it in one of your favourite editors to take a look at it. Did you,by any chance, try to read it on the browser? And as regards reposting the same message, I can say that I did it as I felt the subject was not quite appropriate in the first posting and I was not sure as to how I could delete/alter the posting. I am not asking for a code-fix,but some suggestions from some one who might ever have come across such a thing.Anyway, lemme know if you have any idea on it. Thanks... -
Problem Generating a Report by passing a Resultset as a datasource
I am having troubles generating a report using CR for Eclipse 2.0.
I used the example that shows how do a simple select SQL query to the database and pass the resultset from the query to the report to generate a report from here: https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/201084dc-be66-2b10-64bf-dde4970c9b90
I used a simple rpt file that simply shows the content of two columns from a table: TXN_TYPE_CD and TXN_STATUS_CD from a POLICY_TXN table.
Using the code above, and just modifying it a bit to include my jdbc connection details as well as my select query, I was able to view the report which populated data from my database (Oracle 10g) at runtime of the application. This test proved positive.
However, the problem I am having is that I am trying to make this code into a Servlet for use in a Java EE application running on Websphere 6.1.0.17 using JVM 1.5.0_15 64-bit. Instead of using the DHTML thick client, I export to PDF. When I do this, the crystal report shows as a PDF, but the data is missing for some reason. Only the headers for the two db columns are shown. I don't see any startling differences between the code and am 100% positive that my resultset is being returned with data (I output the data returned in the result set as shown in the code).
Here is the code I am using:
public class CrystalReportGeneratorServlet_WOW extends Servlet {
private static final long serialVersionUID = 768970549082466125L;
protected HttpSession session;
private final String EXPORT_FILE = "myExportedReport.pdf";
private final String CUSTOM_PATH = "/custom/resource/crystalReport/";
private String REPORT_NAME;
public void service(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
Properties loParms = new Properties();
ResultSet resultSet = null;
//Obtain current JDBC Connection
Connection loConn = AppEnvironment.getJDBCConnection();
Statement statement = null;
try {
REPORT_NAME = "Test.rpt";
//Open report
ReportClientDocument reportClientDoc = new ReportClientDocument();
reportClientDoc.open(SystemConfig.getAppHome() + CUSTOM_PATH + REPORT_NAME, 0);
//Create SQL query.
String query = "SELECT \"POLICY_TXN\".\"TXN_TYPE_CD\", \"POLICY_TXN\".\"TXN_STATUS_CD\"" + "FROM \"POLICY_TXN\"";
//Query database and obtain the Resultset that will be pushed into the report.
statement = loConn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
//Execute query and return result set.
resultSet = statement.executeQuery(query);
//Look up existing table in the report to set the datasource for and obtain its alias. This table must
//have the same schema as the Resultset that is being pushed in at runtime. The table could be created
//from a Field Definition File, a Command Object, or regular database table. As long the Resultset
//schema has the same field names and types, then the Resultset can be used as the datasource for the table.
String tableAlias = reportClientDoc.getDatabaseController().getDatabase().getTables().getTable(0).getAlias();
/////TESTING: OUTPUT contents of resultSet
while (resultSet.next()) {
System.out.println("TXN_STATUS_CD = " + resultSet.getString("TXN_STATUS_CD"));
System.out.println("TXN_TYPE_CD = " + resultSet.getString("TXN_TYPE_CD"));
//Push the Java ResultSet into the report. This will then be the datasource of the report.
DatabaseController dbc = reportClientDoc.getDatabaseController();
dbc.setDataSource(resultSet, tableAlias , "resultsetTable");
//Export to PDF
ExportToPDF(reportClientDoc, response);
catch(ReportSDKException ex) {
System.out.println(ex);
catch(Exception ex) {
System.out.println(ex);
} finally {
try {
resultSet.close();
} catch (SQLException e) {
e.printStackTrace();
} finally {
AppEnvironment.returnStatement(statement);
AppEnvironment.returnConnection ( loConn ) ;
private void ExportToPDF(ReportClientDocument rcd, HttpServletResponse response)
try {
ByteArrayInputStream byteArrayInputStream = (ByteArrayInputStream)rcd.getPrintOutputController().export(ReportExportFormat.PDF);
rcd.close();
writeToBrowser(byteArrayInputStream, response, "application/pdf", EXPORT_FILE);
catch(ReportSDKException ex) {
System.out.println(ex);
catch(Exception ex) {
System.out.println(ex);
* Utility method that demonstrates how to write an input stream to the server's local file system.
private void writeToBrowser(ByteArrayInputStream byteArrayInputStream, HttpServletResponse response, String mimetype, String exportFile) throws Exception {
//Create a byte[] the same size as the exported ByteArrayInputStream.
byte[] buffer = new byte[byteArrayInputStream.available()];
int bytesRead = 0;
try{
//Set response headers to indicate mime type and inline file.
response.setHeader("Content-disposition", "inline;filename=" + exportFile);
response.setContentType(mimetype);
//Stream the byte array to the client.
while((bytesRead = byteArrayInputStream.read(buffer)) != -1) {
response.getOutputStream().write(buffer, 0, bytesRead);
//Flush and close the output stream.
response.getOutputStream().flush();
response.getOutputStream().close();
} catch (Exception e){
e.printStackTrace();
public static Servlet getInstance()
return new CrystalReportGeneratorServlet_WOW();
Any help would greatly be appreciated.Actually Uzair I came across this thread in trying to find a resolution to my problem. I was wondering if you were able to resolve this issue as it appears as though I may have the same problem.
Thanks. -
NetBeans problem: Issue with servlets and Chinese character encoding
Java Version: JDK1.5.0_01, JRE1.5.0_01 (International version)
Netbeans Version: Netbeans IDE 4.0
OS: Windows XP Personal Edition
Dear Sirs,
First at all thanks for reading this post. I am having the following issue. I am creating an application using html pages and servlets. I am using Chinese and English languages on them (html encoding UTF-8).
I created a project in Netbeans and added an idex.html screen reporting to a servlet. Both index.html and in the servlet generated html page contains the line:
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
Additional, I setup the character code settings in Netbeans:
(tools-options-Java sources-Expert-default encoding=UTF-8
When I run the project, index.html displays itself perfectly, with the Chinese characters displayed properly. The problem comes when the html created servlet is displayed, which instead of the Chinese characters some strange characters are displayed (�� instead of Chinese).
I have tried different encodings from http://java.sun.com/j2se/1.4.2/docs/guide/intl/encoding.doc.html without any luck. I also setup the encoding of the file itself (using right click-properties in the project menu of Netbeans).
Also, when I am editing the servlet, the characters are displayed properly. I type them directly without any issue, but then the display is wrong at runtime.
Also, just in case this have something to do with the problem, my PC was bought in US, therefore the default character set is not Chinese. I had to install the Chinese typing stuff later on. But like I said earlier, the html page is displayed properly, so I really think is some problem with Netbeans.
After a week trying to find a solution, I decided to post it here in the hopes that someone will show me the way of the light.
Thanks in advance for any ideas or help provided
Aral.Ok, I found out some problems with Netbeans as well.
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException
response.setCharacterEncoding("UTF-8");
request.setCharacterEncoding("UTF-8");
response.setContentType("text/html");
PrintWriter out = response.getWriter();
byte[] st = {-25,-75,-124,-27,-100,-106,-17,-68,-102,-27,-80,-113,-27,-72,-125,-26,-118,-75,-26,-105,-91,-27,-82,-93};
out.println("this works: ");
out.println(new String(st,"UTF-8"));
out.println("<br>");
out.println("this doesn't: ");
out.println("some chinese copied from the Internet<br>");Right click the .java file and choose properties -> encoding UTF-8
Then I make a copy of the .java file, rename it to html and open it with IE sure enough
the Chinise is allready unreadable (not it's still readable in the IDE);
When I compile the file with F9 I get the following error:
whatever.java:101: warning: unmappable character for encoding Cp1252
Tried to set the encoding to UNICODE but then the file doesn't compile.
I gues you have to download the Japanese version for it to work correctly. -
A big problem of Generate report with PDF format....Urgent
I want to generate a report with pdf format through one java file, it have two page 1)gen_report.jsp 2) report_gen.java , the compliation was failed. However, i don't what the problem is .... i hope anyone can help me as it is very argent for me ....Thanks a lot
1)gen_report.jsp
<table id="AutoNumber1">
<tr>
<td background="images/top5movie.png">
<p align="center"> </p>
</td>
</tr>
<tr>
<td >
<div align="center">
<table id="AutoNumber2" >
<form method="GET" action="../report_gen" name="report_gen" target="_blank" onSubmit="javascript:return checkr1(this)">
<tr>
<td ><b>Report Description:</b></td>
<td >This report is to show the top five popular movies in cinemix for a period </td>
</tr>
<tr>
<td><b>Data scope:</b></td>
<td >Start from
<input type="text" name="start" value="2003-1-1" >to
<input type="text" name="end" value="2006-1-1" ></td>
</tr>
<tr>
<td><b>Data processing:</b></td>
<td >Show
<select name="order_by">
<option value="desc" selected>top</option>
<option value="asc">bottom</option>
</select>
5 films</td>
</tr>
<tr>
<td> <p align="center">
<input type="submit" value="View_Report" name="subm">
</p></td>
</tr>
<input type="hidden" name="report" value="r1">
</form>
<form method="GET" action="../report_gen" name="report_gen" target="_blank" onSubmit="javascript:return checkr2(this)">
<input type="hidden" name="report" value="r2">
</form>
</table>
</div>
</td>
</tr>
</table>Then my java code is here
report_gen.java
import java.io.*;
import java.net.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;
import java.sql.*;
// chart and pdf out
import java.awt.Graphics2D;
import java.awt.geom.Rectangle2D;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.data.xy.*;
import org.jfree.data.xy.XYBarDataset;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.statistics.SimpleHistogramDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.DefaultFontMapper;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfTemplate;
import com.lowagie.text.pdf.PdfWriter;
import com.lowagie.text.*;
import com.lowagie.text.pdf.*;
import com.lowagie.text.pdf.PdfPCell;
public class report_gen extends HttpServlet
private final String titles[] = {"Top Five popular movies ",
"Financial cirumstance of cinemas",
"Distribution of time segment",
"Distribution of favourite movie type"
private final String descs[] = {"This report is to show the top five popular movies in cinemix for a period ",
"This report is to show the financial circumstance of each cinema site ",
"This report is to analysis the customer when is the most visit time ",
"This report is to analysis the customer which type of movie do they watch the most"
private final String bigTitle = "Cinemix";
private final String driver = "org.gjt.mm.mysql.Driver";
private final String url= "jdbc:mysql://localhost:3306/cinemix";
private final String userID = "abc";
private final String passwd = "abc";
public void init(ServletConfig config) throws ServletException
super.init(config);
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
final int width = 550;
final int height = 200;
/ title font (centre and report title)
final Font fTitle0 = FontFactory.getFont("Helvetica", 42, Font.BOLD);
final Font fTitle1 = FontFactory.getFont("Helvetica", 30, Font.BOLD);
// centre name:
final String title0 = bigTitle;
// Default category for DefaultCategoryDataset
final String cat = "data";
Connection conn;
JFreeChart chart;
String title1 = "xyz Report";
String chartDesc = "description";
String notes[] = new String[4];
String chartTitle = "so bad this is title";
String chartXTitle = "this is x";
String chartYTitle = "this is y.";
String report = request.getParameter("report");
int max=-10000;
int min=10000;
int j=0;
// do some basic checking
if (report == null || report.equals(""))
report = "-1"; // this course unknow report error message
String start = request.getParameter("start");
String end = request.getParameter("end");
String order_by = request.getParameter("order_by"); // ToDo: check invalid string
int topN = 5;
String order = (order_by.equals("desc")) ? "Top" : "Last";
String inv[] = {"08:30", "09:30", "10:30", "11:30", "12:30", "11:30", "12:30", "13:30", "14:30", "15:30", "16:30", "17:30","18:30","19:30","20:30","21:30","22:30","23:30"};
int inv_val[] = new int[inv.length - 1];
try
Class.forName(driver).newInstance();
catch(Exception e)
printE("Cannot load mysql database driver!", response);
e.printStackTrace();
return;
try
conn = DriverManager.getConnection(url, userID, passwd);
if (report.equals("r1")) { // report 1
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
Statement stmt = conn.createStatement();
String sql = "select *,count(f.Name),f.Name from film f, filmDetail fd, ticket t where f.startDate > '" + start + "' and f.endDate < '" + end + "'and fd.filmID = f.filmID and fd.filmDetailID = t.filmDetailID group by f.name order by fd.filmDetailID asc limit '" +topN+"'";
ResultSet rs = stmt.executeQuery(sql);
while (rs.next())
if (rs.getInt("fd.filmDetailID") > max) max = rs.getInt("fd.filmDetailID");
if (rs.getInt("fd.filmDetailID") < min) min = rs.getInt("fd.filmDetailID");
j++;
ataset.setValue(rs.getInt("fd.filmDetailID"), cat,rs.getString("f.Name"));
title1 = titles[0];
chartDesc = descs[0];
chartTitle = order + " " + topN + " popular movie";
chartYTitle = "Box Office record";
chartXTitle = "Film Name";
gender = " ";
chart = ChartFactory.createBarChart(chartTitle, chartXTitle, chartYTitle, dataset,PlotOrientation.VERTICAL, false, true, false);
else
print("Error: I don't inderstand your request!", response);
return;
catch (SQLException e)
printE("Cannot open database connection? <br>", response);
// printE(e.toString);
e.printStackTrace();
return;
response.setContentType("application/pdf");
Document document = new Document(PageSize.A4, 5, 5, 5, 5);
try
PdfWriter writer;
writer = PdfWriter.getInstance(document, response.getOutputStream());
HeaderFooter footer = new HeaderFooter(new Phrase("Page: "), true);
footer.setBorder(Rectangle.NO_BORDER);
document.setFooter(footer);
footer.setAlignment(Element.ALIGN_CENTER);
// step 3
document.open();
document.add(getHeader(title0, title1, start, end, gender, order, topN, chartDesc));
document.add(printChart(chart, writer));
document.add(getFooter(notes));
catch(DocumentException de)
de.printStackTrace();
// step 5
document.close();
return;
}// end doGet()
/** Handles the HTTP <code>POST</code> method.
* @param request servlet request
* @param response servlet response
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
// processRequest(request, response);
/** Returns a short description of the servlet.
public String getServletInfo()
return "Generate reports for " + bigTitle;
/* To print en error and exit(?) */
private void printE(Object obj, HttpServletResponse response) throws IOException
response.setContentType("text/html");
PrintWriter out;
out = response.getWriter();
out.print(obj.toString());
out.close();
// To-Do: how to force exiting?
// create data chart
private PdfPTable getHeader(String title0, String title1, String start, String end, String sex, String order, int topN, String desc)
Font fTitle0 = FontFactory.getFont("Helvetica", 42, Font.BOLD);
Font fTitle1 = FontFactory.getFont("Helvetica", 24, Font.BOLD);
Font fTitle3 = FontFactory.getFont("Helvetica", 12, Font.BOLD);
Font fValue = FontFactory.getFont("Helvetica", 12, Font.UNDERLINE);
Paragraph parStartEnd = new Paragraph();
parStartEnd.add(new Phrase("Data start from: ", fTitle3));
parStartEnd.add(new Phrase(start, fValue));
parStartEnd.add(new Phrase(" to ", fTitle3));
parStartEnd.add(new Phrase(end, fValue));
Paragraph parGenerateDate = new Paragraph();
parGenerateDate.add(new Phrase("Report generated at: ", fTitle3));
parGenerateDate.add(new Phrase(new java.util.Date().toString(), fValue));
Paragraph parGender = new Paragraph();
parGender.add(new Phrase("Current show gender: ", fTitle3));
parGender.add(new Phrase(sex, fValue));
Paragraph parTopN = new Paragraph();
parTopN.add(new Phrase("Now is showing ", fTitle3));
parTopN.add(new Phrase(order, fValue));
parTopN.add(new Phrase(" ", fValue));
parTopN.add(new Phrase(new Integer(topN).toString(), fValue));
parTopN.add(new Phrase(" record(s)", fTitle3));
// Start main table
PdfPTable tblMain = new PdfPTable(1);
tblMain.getDefaultCell().setBorder(0);
// Print title
tblMain.getDefaultCell().setHorizontalAlignment(Element.ALIGN_CENTER);
tblMain.addCell(new Paragraph(title0, fTitle0));
tblMain.addCell(new Paragraph(title1, fTitle1));
tblMain.addCell("");
tblMain.addCell("");
tblMain.addCell("");
// Print headers data
//tblMain.getDefaultCell().setHorizontalAlignment(Element.ALIGN_RIGHT);
//tblMain.addCell(parInvoiceNum);
//tblMain.addCell("");
tblMain.getDefaultCell().setHorizontalAlignment(Element.ALIGN_LEFT);
tblMain.addCell(parStartEnd);
tblMain.addCell("");
tblMain.addCell(parGenerateDate);
tblMain.addCell("");
if (sex != " ")
tblMain.addCell(parGender);
else if(order != null && topN > 0)
tblMain.addCell(parTopN);
else
tblMain.addCell(" \n");
tblMain.addCell("");
tblMain.setWidthPercentage(96);
tblMain.addCell(new Paragraph("Description of this report:", fTitle3));
tblMain.addCell(desc);
tblMain.addCell("\n");
// Finish main table
return tblMain;
// print a chart _directly_ to pdf and return a empty Pdftable...
public PdfPTable printChart(JFreeChart chart, PdfWriter writer)
PdfContentByte cb = writer.getDirectContent();
int width = 550;
int height = 450;
PdfTemplate tp = cb.createTemplate(width, height);
Graphics2D g2d = tp.createGraphics(width, height, new DefaultFontMapper());
Rectangle2D r2d = new Rectangle2D.Double(0, 0, width, height); //->,
chart.draw(g2d, r2d);
g2d.dispose();
cb.addTemplate(tp, 20, 170);
// quick method to push down the footer text
// the only things this method return
PdfPTable tblDownDown = new PdfPTable(1);
tblDownDown.getDefaultCell().setBorder(0);
tblDownDown.addCell(" \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n");
tblDownDown.addCell(" \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n");
tblDownDown.addCell(" \n \n \n \n \n \n");
return tblDownDown;
public PdfPTable getFooter(String notes[])
Font fNote = FontFactory.getFont("Helvetica", 14, Font.UNDERLINE);
Font fComment = FontFactory.getFont("Helvetica", 12, Font.ITALIC);
Font fTitle1 = FontFactory.getFont("Helvetica", 30, Font.ITALIC);
// Start footer table
PdfPTable tblFooter = new PdfPTable(1);
tblFooter.getDefaultCell().setBorder(0);
if (notes != null)
tblFooter.addCell(new Paragraph("Notes:", fNote));
tblFooter.addCell("");
tblFooter.addCell("");
tblFooter.getDefaultCell().setHorizontalAlignment(Element.ALIGN_LEFT);
for (int i=0;i<notes.length;i++)
if (notes[i] != null)
tblFooter.addCell(new Paragraph("" + (i+1) + ". " + notes[i] + "", fComment));
tblFooter.addCell("");
tblFooter.addCell("");
tblFooter.getDefaultCell().setHorizontalAlignment(Element.ALIGN_CENTER);
tblFooter.addCell(new Paragraph("- End of report -", fComment));
return tblFooter;
}Go to the cache directory and see if you can open the report directly from here (not in IE).
I have seen posts on problems with Acrobat Reader Plugin for IE (I believe it was version 6 of Reader).
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