Servlet to JSP

Suppose I have 2 frames (leftFrame and mainFrame)
Can I forward a request to a particular frame, for example:
getServletConfig().getServletContext().getRequestDispatcher("/some.jsp", TARGET="mainFrame").forward(request, response);
PLS HELP

Sorry, you can't do it that way, from the server you can only pass on the request to another page or servlet.
The server cannot decide to browser frame it is going to send it's output.
What you need to do is set the target attribute of the anchor tag or form post etc etc in your leftFrame to be the mainFrame.
Hope that helps.
Jon

Similar Messages

How to get an ArrayList Object in servlet from JSP?

How to get an ArrayList Object in servlet from JSP?
hi all
please give the solution for this without using session and application...
In test1.jsp file
i am setting values for my setter methods using <jsp:usebean> <jsp:setproperty> tags as shown below.
After that i am adding the usebean object to array list, then using request.setAttribute("arraylist object")
---------Code----------
<jsp:useBean id="payment" class="com.common.PaymentHandler" scope="request" />
<jsp:setProperty name="payment" property="strCreditCardNo" param="creditCardNumber" />
<%-- <jsp:setProperty name="payment" property="iCsc" param="securityCode" /> --%>
<jsp:setProperty name="payment" property="strDate" param="expirationDate" />
<jsp:setProperty name="payment" property="strCardType" param="creditCardType" />
<%--<jsp:setProperty name="payment" property="cDeactivate" param="deactivateBox" />
<jsp:setProperty name="payment" property="fAmount" param="depositAmt" />
<jsp:setProperty name="payment" property="fAmount" param="totalAmtDue" /> --%>
<jsp:useBean id="lis" class="java.util.ArrayList" scope="request">
<%
lis.add(payment);
%>
</jsp:useBean>
<%
request.setAttribute("lis1",lis);
%>
-----------Code in JSP-----------------
In testServlet.java
i tried to get the arraylist object in servlet using request.getAttribute
But I unable to get that arrayObject in servlet.....
So if any one help me out in this, it will be very helpfull to me..
Thanks in Advance
Edward

Hi,
Im also facing the similar problen
pls anybody help..
thax in advance....
Litty

How do I lookup an EJB 3.0 Session bean from servlet or JSP?

Does anyone knows how can I invoke an EJB from a servlet or JSP ?
I deployed a simple EJB on a Oracle Application Server 10g release 10.1.3 and I'm working with JDeveloper 10.1.3. I deployed the files via JDeveloper, and I didn´t specify any orion-ejb-jar.xml or ejb-jar.xml file
After deployment, the orion-ejb-jar.xml look like this in the server:
<?xml version="1.0" encoding="utf-8"?>
<orion-ejb-jar xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://xmlns.oracle.com/oracleas/schema/orion-ejb-jar-10_0.xsd" deployment-version="10.1.3.0.0" deployment-time="10b49516c8f" schema-major-version="10" schema-minor-version="0" >
<enterprise-beans>
<session-deployment name="HolaMundoEJB" location="HolaMundoEJB" local-location="HolaMundoEJB_HolaMundoEJBLocal" local-wrapper-name="HolaMundoEJBLocal_StatelessSessionBeanWrapper6" remote-wrapper-name="HolaMundoEJB_StatelessSessionBeanWrapper7" persistence-filename="HolaMundoEJB.home_default_group_1">
</session-deployment>
</enterprise-beans>
<assembly-descriptor>
<default-method-access>
<security-role-mapping name="<default-ejb-caller-role>" impliesAll="true" />
</default-method-access>
</assembly-descriptor>
</orion-ejb-jar>
I'm trying to invoke the ejb in a servlet by doing the following:
public void doGet(HttpServletRequest request, ....
Context context = new InitialContext();
HolaMundoEJB helloWorld =
(HolaMundoEJB)context.lookup("java:com/env/ejb/HolaMundoEJB");
String respuesta = helloWorld.sayHello("David");
When i invoke the servlet I catch a NamingException whose message says something
like this ....java:com/env/ejb/HolaMundoEJB not found in webLlamaEJB
I tried different paths for the lookup but nothing....
Can anyone help me with this topic? Thank you.

Please try the following code:
HelloEJBBean.java:
@Stateless(name="Hello")
@Remote(value={Hello.class})
public class HelloEJBBean implements Hello { ... }
hello.jsp:
Context ctx = new InitialContext();
Hello h = (Hello)ctx.lookup("ejb/Hello");
web.xml:
<ejb-ref>
<ejb-ref-name>ejb/Hello</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
<remote>fi.kronodoc.test.model.Hello</remote>
</ejb-ref>
i think you should also define jndi mappings for the references in orion-ejb-jar.xml and orion-web.xml but for some reason it seems to be working also without these.

How to convert this Servlet into JSP

I am trying to convert this Servlet into JSP page.
How do I go about doing this?
Thanks.
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;
import java.text.*;
/** Shows all items currently in ShoppingCart. Clients
* have their own session that keeps track of which
* ShoppingCart is theirs. If this is their first visit
* to the order page, a new shopping cart is created.
* Usually, people come to this page by way of a page
* showing catalog entries, so this page adds an additional
* item to the shopping cart. But users can also
* bookmark this page, access it from their history list,
* or be sent back to it by clicking on the "Update Order"
* button after changing the number of items ordered.
* <P>
* Taken from Core Servlets and JavaServer Pages 2nd Edition
* from Prentice Hall and Sun Microsystems Press,
* http://www.coreservlets.com/.
* © 2003 Marty Hall; may be freely used or adapted.
public class OrderPage extends HttpServlet {
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
HttpSession session = request.getSession();
ShoppingCart cart;
synchronized(session) {
cart = (ShoppingCart)session.getAttribute("shoppingCart");
// New visitors get a fresh shopping cart.
// Previous visitors keep using their existing cart.
if (cart == null) {
cart = new ShoppingCart();
session.setAttribute("shoppingCart", cart);
String itemID = request.getParameter("itemID");
if (itemID != null) {
String numItemsString =
request.getParameter("numItems");
if (numItemsString == null) {
// If request specified an ID but no number,
// then customers came here via an "Add Item to Cart"
// button on a catalog page.
cart.addItem(itemID);
} else {
// If request specified an ID and number, then
// customers came here via an "Update Order" button
// after changing the number of items in order.
// Note that specifying a number of 0 results
// in item being deleted from cart.
int numItems;
try {
numItems = Integer.parseInt(numItemsString);
} catch(NumberFormatException nfe) {
numItems = 1;
cart.setNumOrdered(itemID, numItems);
// Whether or not the customer changed the order, show
// order status.
response.setContentType("text/html");
PrintWriter out = response.getWriter();
String title = "Status of Your Order";
String docType =
"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 " +
"Transitional//EN\">\n";
out.println(docType +
"<HTML>\n" +
"<HEAD><TITLE>" + title + "</TITLE></HEAD>\n" +
"<BODY BGCOLOR=\"#FDF5E6\">\n" +
"<H1 ALIGN=\"CENTER\">" + title + "</H1>");
synchronized(session) {
List itemsOrdered = cart.getItemsOrdered();
if (itemsOrdered.size() == 0) {
out.println("<H2><I>No items in your cart...</I></H2>");
} else {
// If there is at least one item in cart, show table
// of items ordered.
out.println
("<TABLE BORDER=1 ALIGN=\"CENTER\">\n" +
"<TR BGCOLOR=\"#FFAD00\">\n" +
" <TH>Item ID<TH>Description\n" +
" <TH>Unit Cost<TH>Number<TH>Total Cost");
ItemOrder order;
// Rounds to two decimal places, inserts dollar
// sign (or other currency symbol), etc., as
// appropriate in current Locale.
NumberFormat formatter =
NumberFormat.getCurrencyInstance();
// For each entry in shopping cart, make
// table row showing ID, description, per-item
// cost, number ordered, and total cost.
// Put number ordered in textfield that user
// can change, with "Update Order" button next
// to it, which resubmits to this same page
// but specifying a different number of items.
for(int i=0; i<itemsOrdered.size(); i++) {
order = (ItemOrder)itemsOrdered.get(i);
out.println
("<TR>\n" +
" <TD>" + order.getItemID() + "\n" +
" <TD>" + order.getShortDescription() + "\n" +
" <TD>" +
formatter.format(order.getUnitCost()) + "\n" +
" <TD>" +
"<FORM>\n" + // Submit to current URL
"<INPUT TYPE=\"HIDDEN\" NAME=\"itemID\"\n" +
" VALUE=\"" + order.getItemID() + "\">\n" +
"<INPUT TYPE=\"TEXT\" NAME=\"numItems\"\n" +
" SIZE=3 VALUE=\"" +
order.getNumItems() + "\">\n" +
"<SMALL>\n" +
"<INPUT TYPE=\"SUBMIT\"\n "+
" VALUE=\"Update Order\">\n" +
"</SMALL>\n" +
"</FORM>\n" +
" <TD>" +
formatter.format(order.getTotalCost()));
String checkoutURL =
response.encodeURL("../Checkout.html");
// "Proceed to Checkout" button below table
out.println
("</TABLE>\n" +
"<FORM ACTION=\"" + checkoutURL + "\">\n" +
"<BIG><CENTER>\n" +
"<INPUT TYPE=\"SUBMIT\"\n" +
" VALUE=\"Proceed to Checkout\">\n" +
"</CENTER></BIG></FORM>");
out.println("</BODY></HTML>");
}

Sorry.
actually this is my coding on the bottom.
Pleease disregard my previous coding. I got the different one.
My first approach is using <% %> around the whole doGet method such as:
<%
String[] ids = { "hall001", "hall002" };
setItems(ids);
setTitle("All-Time Best Computer Books");
out.println("<HR>\n</BODY></HTML>");
%>
I am not sure how to break between code between
return;
and
response.setContentType("text/html");
Here is my coding:
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException
     String[] ids = { "hall001", "hall002" };
     setItems(ids);
     setTitle("All-Time Best Computer Books");
if (items == null) {
response.sendError(response.SC_NOT_FOUND,
"Missing Items.");
return;
response.setContentType("text/html");
PrintWriter out = response.getWriter();
String docType =
"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 " +
"Transitional//EN\">\n";
out.println(docType +
"<HTML>\n" +
"<HEAD><TITLE>" + title + "</TITLE></HEAD>\n" +
"<BODY BGCOLOR=\"#FDF5E6\">\n" +
"<H1 ALIGN=\"CENTER\">" + title + "</H1>");
CatalogItem item;
for(int i=0; i<items.length; i++) {
out.println("<HR>");
item = items;
if (item == null) {
out.println("<FONT COLOR=\"RED\">" +
"Unknown item ID " + itemIDs[i] +
"</FONT>");
} else {
out.println();
String formURL =
"/servlet/coreservlets.OrderPage";
formURL = response.encodeURL(formURL);
out.println
("<FORM ACTION=\"" + formURL + "\">\n" +
"<INPUT TYPE=\"HIDDEN\" NAME=\"itemID\" " +
" VALUE=\"" + item.getItemID() + "\">\n" +
"<H2>" + item.getShortDescription() +
" ($" + item.getCost() + ")</H2>\n" +
item.getLongDescription() + "\n" +
"<P>\n<CENTER>\n" +
"<INPUT TYPE=\"SUBMIT\" " +
"VALUE=\"Add to Shopping Cart\">\n" +
"</CENTER>\n<P>\n</FORM>");
out.println("<HR>\n</BODY></HTML>");

Error in accessing servlet from JSP

Hello everybody,
When I access a servlet from a JSP page,I am getting the following error message :
Error 404--Not Found
From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:
10.4.5 404 Not Found
The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent.
If the server does not wish to make this information available to the client, the status code 403 (Forbidden) can be used instead. The 410 (Gone) status code SHOULD be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable and has no forwarding address.
I am using Weblogic 7.0 and my web.xml code is as follows:
<web-app>
<servlet>
<servlet-name>TestServlet</servlet-name>
<servlet-class>TestServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>TestServlet</servlet-name>
<url-pattern>/TestServlet</url-pattern>
</servlet-mapping>
</web-app>
I am accessing the servlet from a javascript function in my JSP page.
I am quite new to the Java technology. So any help in this regard would be highly appreciated.
Thanks in advance,

The form action event is in a javascript function. I am sorry I mentioned that I am accessing this servlet from JSP. Actually,this servlet is accessed from an HTML document.
The following is the javascript code:
<script language="javascript">
function lfnCallNext()
     alert("In the function");
     frmMain.method="POST";
     frmMain.action="/TestServlet";
     frmMain.hidChoice.value="GetList";
     frmMain.submit();
</script>
And this function is called from an hyperlink as follows:
Work with Employee Database
Thanks,

Change protocol when redirecting a request for a servlet to jsp

Hello,
In my servlet, There is a line of code:
getServletConfig().getServletContext().getRequestDispatcher("/page.jsp").forward(request,response);
My question is: I'd like to change the current protocol (like http) to new protocol (like https) or versa vista before my servlet executes the above line.
Is this possible to implement that? If so, how can I do it?
If not implement, Is there any ways to convert back or forward between http and https protocols in java, servlet or jsp?
I did try to use window.location.href="protocol://myserver/..." in javascript to redirect the jsp page to the right protocol, but the session for the browser was lost, and the jsp page ran into infinite loop.
Thanks in advance for any helps.
Mike.

if (!request.isSecure()) response.sendRedirect("https://me.com/page.jsp");
(or visa versa)

Location of java servlet (not jsp) deployed on Java Stack

Hello,
Why this forum? this post is related to the way of calling a java servlet deployed on the java stack, so it's related to the structure of the stack than to real java programming.
Usually, I develop JSP servlets which are easily called either with a mapping or not. I have deployed now a java servlet and added a mapping to it by modifying the xml source itselft in its descriptor, but after deployement I am not able to reach the resource.
In the windows explorer of the java stack I find in j2ee>cluster>server>apps my application as follows:
app_ear>servlet_jsp>app>root>WEB-INF>classes>my class files
app_ear>servlet_jsp>app>root>app.jsp
This time it's not a jsp that I want to call: app/app.jsp but my java servlet which lies in the classes subdir.
Could someone help my to achieve this or is it the wrong way, we can only request jsp applications?
Kind regards,
Tanguy Mezzano

Hi Vladimir,
here's my web.xml code:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
     <display-name>WEB APP</display-name>
     <description>WEB APP description</description>
     <servlet>
          <servlet-name>SSORedirect3.jsp</servlet-name>
          <jsp-file>/SSORedirect3.jsp</jsp-file>
     </servlet>
     <servlet-mapping>
          <servlet-name>AuthenticatorServlet</servlet-name>
          <url-pattern>/SSOredirect3</url-pattern>
     </servlet-mapping>
     <security-constraint>
          <display-name>SecurityConstraint</display-name>
          <web-resource-collection>
               <web-resource-name>WebResource</web-resource-name>
               <url-pattern>/*</url-pattern>
               <http-method>GET</http-method>
               <http-method>POST</http-method>
          </web-resource-collection>
          <auth-constraint>
               <role-name>DefaultSecurityRole</role-name>
          </auth-constraint>
     </security-constraint>
     <security-role>
          <role-name>DefaultSecurityRole</role-name>
     </security-role>
</web-app>
And in my jsp file, I have a form with this kind of code:
<form name="xyz" method="GET" action="http://j2eeserver:50000/SSOredirect3/SSOredirect3">
I get this error in my logs:
com.sap.engine.services.servlets_jsp.server.exceptions.ServletNotFoundException: Requested resource [SSOredirect3/servlet/AuthenticatorServlet] not found.
Exception id: [000C299F469E00650001D8E900000CCC000458E27823275B]#
Best regards,
Tanguy Mezzano

Creating FOrums with Servlet and JSP

Hi everyone,
Is there a good resource that explains how to build a forum using servlets and JSP technology?
Regards,
Basil Mahdi

please let me know here if you find any useful resources...I am in the process of writing my own searchable threaded forum for my company with JSP's/servlets. It's a very slow process at the moment though...if I ever finish it, I'll gladly share it.

Servlet and JSP in OAS

I'm developing web application with OAS
4.0.8.1 and JDeveloper 3.0 and I want to call
JSP from servlet using "RequestDispatcher".
I downloaded JSP for OAS from www.olab.com.
In the Release note, there is a description
about RequestDispatcher, but I cannot
understand about details.
In what configuration can I use servlet and
JSP together with RequestDispatcher. Anyone
scceeded about that?
null

wan (guest) wrote:
: Hi everyone,
: I am using OAS 4.0.8 on Solaris 2.6. After viewing servlet
: and JSP samples, I am kind of confuse whether OAS supports the
: following options
: 1. JSP
: 2. servlet chaining
: 3. running JDeveloper DB Servlet wizard
: (oracle.jdeveloper.servlet.*) and Java Business Objects
: (oracle.jbo.rt.cs)
: Thank you for your time.
I found a white paper 408newfead.pdf, that says under "Future
Directions" that it will add jsp support. I read somewhere (I
can't remember where exactly :( ) that said 4.0.8.1 would
support
JSPs. I don't know if this release is out yet.
I wish Oracle would get with the times and put out a product that
is consistent with the technology they are touting as the
future.
Having us download Suns server to run servlets and JSP is
ridiculous for the worlds second largest software company!
null

JSP- Servlet-- Bean-- JSP how to implement

I have problem.
My JSP will take a emplyee id .
Now I want to show all the values regarding that employee in a JSP(JSP form) from the DB(Oracle).
So Iam planning like
JSP-->Servlet-->Bean-->JSP
So my doubts are.
1. Is it correct approach
2.If it is correct then which part of the flow connects to DB and stores the value before putting to JSP.
Iam using Tomcat 4.31
Plz help me

I have problem.
My JSP will take a emplyee id .
Now I want to show all the values regarding that
employee in a JSP(JSP form) from the DB(Oracle).
So Iam planning like
JSP-->Servlet-->Bean-->JSP
So my doubts are.
1. Is it correct approach
2.If it is correct then which part of the flow
connects to DB and stores the value before putting to
JSP.
Iam using Tomcat 4.31
Plz help meHI
What you are probably proposing is an MVC design pattern. I wonder if u have heard of the struts framework. Sruts uses MVC design pattern wherein the servlet u are talking about acts as a controller(C) and the bean acts as the model(M) .The JSPs present the view(V). Hence the name MVC.
Your approach is right. First get the employee ID from the jsp and get the corresponding data from database(This logic u implement in the servlet). Then save the fetched data in a bean so that the result jsp can fetch data from it.
Now this is not a strict MVC approach.
Learn more about struts. It presents a much more cleaner solution.

Serving Java Servlets and JSP

I have a small hosting company and was wondering what is required to be installed on a Win2k Server to host Java Servlets and JSP pages for a client of mine?

Ah, so you just want to add a servlet engine to IIS5?
Tomcat can be used as a plugin for IIS. Check out the Tomcat FAQs - somewhere in there you should find one relating to using Tomcat as an IIS plugin. They're far more comprehensive than I could ever hope to be on the matter!

InterMedia Java Classes for Servlets and JSPs and Netscape

I am using the interMedia Java Classes for Servlets and JSPs to upload and retrieve multimedia data. I have found that it is much more performant in Internet Explorer (5.5) than in Netscape Communicator (4.7). In fact, I cannot upload images larger than 10K at all using netscape. However, the same image can be uploaded into the same application using IE. Is this a known issue?
Thanks in advance.

Hi,
We have successfully uploaded multimedia data in the giga-byte range (Quicktime and AVI files) at the same speed with both the Netscape (4.7n) and MS IE (4.n and 5.n) browsers. One thing we have noticed is that its very important to set the manual proxy settings correctly if you have an environment with a proxy server. If you don't, then uploads can go via the proxy server and, for some reason, that seems to take considerably longer. For example, suppose you are in the www.xyzco.com domain and are connecting to a host named webserver.www.xyzco.com, then specify webserver and webserver.www.xyzco.com (to cover both cases) in the "Do not use proxy servers for..." box in the manual proxy server configuration screen. Also, if you're using a tool such as JDeveloper that uses the host IP address in the debugger environment, then you also need to add the numeric-based (nnn.nnn.nnn.nnn) IP address to this list.
Hope this helps.
In order to better understand the variety of ways in which our customers are using interMedia, we'd be very interested in knowing a little more about your application, the interMedia functionality that you are using, and how you are developing and deploying your application. If you are able to help us, please send a short email message with some information about your application, together with any comments you may have, to the Oracle interMedia Product Manager, Joe Mauro, at [email protected] Thank you!
Regards,
Simon
null

JDBC installation for servlets and jsp

Hello All,
I am trying to use JDBC for my web application. i have a book but not very detailed and cannot find a good search on google.
they have said that the ODBC-JDBC bridge driver comes with jdk1.2 or forward. and ask me to set up an ODBC data source. so i went in control panel/systems tab and then try to add SQL and then when click finish it asks me how to connect to sql server, i entered my usename and password but says connection failed.
This is my worst nightmare. please help so i can start building web application using servlets and jsp.

Let me tell you right now, you have BORING nightmares.

Eclipse Plugins for Servlets and JSP.

Hi Guys,
Can any one suggest where i can get the eclipse plugins for Servlets and JSP. May i am wrong posting this question in this forum. I already browsed thru all the forum to get the info but in vain. so any help will be appreciated.
Thank You,
cheers,
thrinath.j

[url http://www.eclipse.org/webtools/]http://www.eclipse.org/webtools/
Regards

When to use servlets and jsp in an application like shoping cart?

Hi All
I m going to design and implement a web application using servelts and jsp. I am still at its requirements analyze stage.
The application is almost likely a shopping cart. So if any of you have the deep knowledge about this domain with servlets and jsp please help me for a good design. What I realy need to know is that
1. what are the core requirements for a shoping cart ?
2. use cases ?
3. best way to follow mvc with servlets and jsp for it?
you can answer to this at the abstract level. no need to go in detail.
if you have any documents like design and use cases mail me to [email protected]
your cooperation is highly appreciated in this regards.

Look into this kid
http://www.apl.jhu.edu/~hall/java/Servlet-Tutorial/Servlet-Tutorial-Session-Tracking.htm

Differences between WL or Netscape for Servlets and JSP's

What are the advantages / disadvantages of running Servlets under WL,
          vs. say, running them in Netscape's servlet engine? Assuming EJB
          container is run separately, either one of these could make calls to the
          WL EJB server, so perhaps it would be simpler and faster to run servlets
          and JSP's under Netscape, and have them call via t3 into a weblogic
          server for EJB's?
          Thoughts
          david
          David Michaels <[email protected]>
          Director of Technology
          ShockMarket Corporation (650) 330-4665
          [david.vcf]


David,
          One of the major reasons to run your servlets on Weblogic is that we have an
          optimization that allows us to pass by reference objects when calling from
          servlets to EJB. This makes things much faster.
          A number of our customers, in addition, have seen performance problems when
          using other servlet engines. It just seems to cause problems due to their
          threading models etc.
          Finally, our servlet engine is by far the most mature and robust on the
          market today. Our JSP implementation is also the best in terms of
          performance.
          Thanks,
          Michael
          Michael Girdley
          WLS Product Manager
          David Michaels <[email protected]> wrote in message
          news:[email protected]..
          > What are the advantages / disadvantages of running Servlets under WL,
          > vs. say, running them in Netscape's servlet engine? Assuming EJB
          > container is run separately, either one of these could make calls to the
          > WL EJB server, so perhaps it would be simpler and faster to run servlets
          > and JSP's under Netscape, and have them call via t3 into a weblogic
          > server for EJB's?
          >
          > Thoughts
          >
          > david
          >
          > --
          > David Michaels <[email protected]>
          > Director of Technology
          > ShockMarket Corporation (650) 330-4665
          >
          >

Servlet to JSP

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