JSP Webdynpro communication

Hi all,
i'm new to web dynpro. My requirement is to call an web dynpro application from a normal J2EE web application running on the SAP Server. Is there any way to call via normal jsp. is it possible. if so will the session attributes will be visible inside the webdynpro application. How to get those session attributes?
will u please help me out in this.
Thnx & Regards
Ilan

Hi
Try
WDProtocolAdapter.getProtocolAdapter().getRequestObject();
to get the request related
Regards
Ayyapparaj

Similar Messages

JSP- EJB Communication

I have a client-server application where my client is an applet and the server is an EJB.
The HTML code to launch the applet is dynamically generated by a JSP page. Now i want this JSP page to be able to communicate with the EJB.
What i need is that the JSP page will pass a parameter to the Applet and the same parameter will be notified to the EJB. So that when the Applet accesses the EJB, the EJB could verify whether the parameter is correct.
Could someone show me a way to achieve this.
I am doing all these bcos since it the applet that acceses the EJB anyone who could manage to get the Applet jar file can access the EJB unauthorizedly,with the help of a decompiler.
If anyone has a better solution to this problem, kindly let me know
regards
Raees

Greetings,
What i need is that the JSP page will pass a parameter
to the Applet and the same parameter will be notified
to the EJB. So that when the Applet accesses the EJB,
the EJB could verify whether the parameter is correct.Unless you're using a database to hold the verification parameter you're looking at several problems here, especially if your EJB is a Session Bean. Firstly, if your bean is Stateful (SB) you will get an exception when your Applet tries to access the bean since Session Beans are not shareable among multiple threads (meaning, in this case, "clients"). If your bean is Stateless it can store the parameter internally, however, Stateless beans are poolable. This means when your Applet tries to verify itself there's no guarantee that the bean holding the parameter from the JSP is the same bean the Applet verifies against. However...
Could someone show me a way to achieve this. One way this can be handled is with a "verification" Stateless SB and a temporary database table. The bean can have a method to generate a temporary "key" which it stores in the temporary table and passes back to the caller (JSP). The JSP then passes this as a parameter to the Applet which invokes a method to validate the key. This method would then check the table for the specified key and delete it upon successful verification. However, since you would be embedding a security construct within the web page it is advisable to perform the page loading over SSL...
I hope this helps.
regards
Raees Regards,
Tony "Vee Schade" Cook

JSP page communicating with a MySQL db throw a Glassfih RESTful web service

Hello;
I am en newbie in servlet/JSP stuffs, and as I said in the subject, i'm looking for the best way to make my JSP pages communicate with my db. My application already consists in a RESTful web service that, just for the record, communicates with a JavaFX Client.
(>What i'm looking for is to write datas in my database through this JavaFX client, and it seems like this can only works by passing through a intermediate scripting language like JSP).
To get back on my issue, I don't really know about JSP. I read many tutorials but it still seems confusing to me. Can somebody show me, by a detailed example, how I can do that ? (Preferably by using jsp beans like "usebean", that i find very useful).
Thanks a lot.

don't make your JSP 'communicate' with a database. These tasks are for servlets and specific business logic classes which you can use in your servlets.
To connect to a database, use the JDBC API. Plenty of tutorials about that around the net.
I don't really know about JSPYeah well, you already identified your problem then. The solution is very simple: learn. To be able to learn, get a good resource, such as a book and not some vague tutorials that you find on the net. For example, I always recommend this free online book:
[core servlets 2nd edition|http://pdf.coreservlets.com]

JSP Applet communication

Hi all ,
I know this question has been asked so many times and I have read all the posts but still i was unsuccessful.
I am trying to send a string from a jsp to another jsp which is loading the applet to display that string.
In my first jsp:
<form method=post action="hello.jsp">
<input type="text" name="formDesc" value="IBMTR/ABMTR Form" size="20" maxlength="20">
<input type=submit name="Go" class="submituttontext" value="Go">
</form>
in my seccond jsp:
<APPLET CODE="ParamTest.class" WIDTH="400" HEIGHT="50">
<PARAM NAME="font" VALUE="Dialog">
<PARAM NAME="size" VALUE="24">
<PARAM NAME="string" VALUE="Hello, world ... it's me. :)">
<PARAM NAME="formDesc" VALUE="<%=request.getParameter("formDesc");%>">
</APPLET>
in my applet:
String myFont = getParameter("font");
String myString = getParameter("string");
int mySize = Integer.parseInt(getParameter("size"));
String desc =getParameter("formDesc");
Font f = new Font(myFont, Font.BOLD, mySize);
g.setFont(f);
g.setColor(Color.red);
g.drawString(myString, 20, 20);
g.drawString(desc, 40, 40);
but nope i cannot see...formDesc ..I jus see the <%=getParameter%>
Thanx

At first glance the only error I see is:
<PARAM NAME="formDesc" VALUE="<%=request.getParameter("formDesc");%>">
should be changed to:
<PARAM NAME="formDesc" VALUE="<%=request.getParameter("formDesc") %>">
No semicolon in expressions. This should give you JSP compile error, so maybe that was just a typo in your post and not the real problem.
Let me know.

JSP/Servlet communication

Hi all
I want to populate a list containing domain objects in a servlet and then send the list to a JSP but without storing them in a HttpSession. I'm leaning toward storing the list as a ServletRequest attribute and then reading the attribute from the JSP - is this a good convention?
Thanks!

let me rephrase that, what's the best way of sending domain objects via a servlet to a JSP without using http sessions?

JSP-HTML communication

          I have a HTML form that supplies 3 parameters to a jsp file. Inside the Jsp file,
          I validate those 3 parameters and throw an exception if any of them are null.
          How would I tell the HTML file if there happens an exception in the Jsp file.?Thanks


one approach is inform thru the query string the posting page.
          other appraach is use the server variables collection to determine the
          referrer(i.e the calling page)
          Oscar Dash <[email protected]> wrote in message
          news:[email protected]..
          >
          > Ok, I converted my form into a jsp as well. When an exception occurs, I am
          doing
          > sendError(500) from the target jsp. How does the first jsp (one who is
          posting
          > the data) knows about that error code?
          >
          > Michael Young <[email protected]> wrote:
          > >Hi.
          > >
          > >You can't tell the html file anything, really. HTML files are static
          > >and dumb. To do
          > >anything intelligent in a form you will probably need to convert it to
          > >a JSP as well in
          > >order to code some intelligence into it.
          > >
          > >Regards,
          > >Michael
          > >
          > >Oscar Dash wrote:
          > >
          > >> I have a HTML form that supplies 3 parameters to a jsp file. Inside
          > >the Jsp file,
          > >> I validate those 3 parameters and throw an exception if any of them
          > >are null.
          > >> How would I tell the HTML file if there happens an exception in the
          > >Jsp file.?Thanks
          > >
          > >--
          > >Michael Young
          > >Developer Relations Engineer
          > >BEA Support
          > >
          > >
          >

Jsp-beans communication

hello all,
i have set up jsp and it works fine.
i have written a jsp which includes action tags i.e. useBean , setProperty and getProperty .
on execution it gives an error.
any special path to be set.
i was trying it on jswdk 1.0
thanx for help.

Hi, it will be really helpful is you're more precise in your description. I can't figure it out which is your problem... Anyway, you may take a look in the search field of this forum with some keywords. Besides, you can change it to the JSP forum.
If you can solve your problem afterwards, you can post some code as advice.
Regards,
JP

Problem while jsp Servlet communication

dear,
i made a login.jsp and Validate.java (servlet), jsp is front-end while validate.java is backend servlet connect to database and check the login from the database, but when i run the example, i didnt show any result eventhough i have generated html page from servlet. Error is validate unreachable but i have coppied it inot correct directory (webapp/web-inf/classes)

Vijay,
Actually I looking for the same answer... I created an applet that connects to a servlet to do some database process.
The problem is that I got an java.security socket error when the client try to create an HttpServletConnection with the servlet...
Luis

Blackberry issues with WebDynpro application

We are testing a webdynpro application via a blackberry. The webdynpro application works fine from IE. With the blackberry, we see the following:
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- User executes a line item transaction in the Blackberry. This item executes fine. However, we get a communication error on the next lineitem.
Is there Blackberry Browser and/or Blackberry server settings that need to be applied to allow the sessions and WebDynpro communication to work properly?

Hi Stephen,
I'm working on creating Blackberry application for online Purchase requisition Approval process, using PR workflow.
Workflow configurations have been done in ECC.
can u guide me how to get "Approve/ Reject" option on the BB device?

EPCF in webdynpro

Hi all
Does epcf can be applied to webdynpro
How the scripting and eventing done in webpro
Useful links pls
Itti

check these related ones
WebDynpro Portal Eventing
WebDynpro or JSPDynPage with HTMLB
WebDynPro communication....
Passing Data Back from a WebDynpro App to a Portal App
Portal Eventing with Web Dynpro
Swathi

Dyanmic csv file downloading with out writing a copy to server

Hi,
Here is my problem, any help most appriciated..
I want to download dynamically created CSV file from the weblogic server, using jsp/servlet communication.
I developed a servlet for this and i called that servlet from my jsp page, when user clicks on download button, my servlet works fine, but it writes a copy of CSV file into c:\bea\wlserver6.0 of the server, My intention is just it's has to dowload file to the client system, with out writing a copy in the server.
Here is my code snnipits..
public void doGet(HttpServletRequest req, HttpServletResponse res) throws IOException, ServletException {
HttpSession session = req.getSession(true);
try {
resultMessageLastBalance = mtdRetrieveLastBalance(req);
rsTrxnDetailLastBalance = resultMessageLastBalance.getRecordSet("lasttentrxn");
} catch (Exception e) {
e.printStackTrace();
e.getMessage();
File csvFile;
FileOutputStream file;
//codes to generate a file in local server for downloading
Calendar calendar = Calendar.getInstance();
String strFileName = Integer.toString(calendar.get(Calendar.YEAR))+Integer.toString(calendar.get(Calendar.MONTH))+Integer.toString(calendar.get(Calendar.DATE))+Integer.toString(calendar.get(Calendar.HOUR))+Integer.toString(calendar.get(Calendar.MINUTE))+Integer.toString(calendar.get(Calendar.SECOND))+Integer.toString(calendar.get(Calendar.MILLISECOND));
try {
strFileName = DeformatAcctNo(req.getParameter("acct_trxn__acctselected")) + strFileName + ".csv";
} catch (Exception e) {}
calendar = null;
csvFile = new File(strFileName);
if (!csvFile.exists()) {
csvFile.createNewFile();
file = new FileOutputStream(csvFile);
res.setContentType("application/download");
res.setHeader("Content-Disposition","attachment;filename=" + strFileName);
javax.servlet.ServletOutputStream servletoutputstream1 = res.getOutputStream();
String s = strFileName;
dumpFile(s, servletoutputstream1);
servletoutputstream1.flush();
servletoutputstream1.close();

Hi,
Thanx a lot for ur solution..it's helful for me to send data with a file format,but i need t send data in csv file foramt.
hav a look at my complete servelt and try to suggesst some thing..
In this case csv file is creating in c:\bea\wlserver directory.my intensions sre just it jas to download to client, no copy in the server.
public class AcctStmtD2 extends HttpServlet {
     public void doGet(HttpServletRequest req, HttpServletResponse res) throws IOException, ServletException {
     //variables for retrieving last balance
     Message resultMessageLastBalance = null;
     RecordSet rsTrxnDetailLastBalance = null;
     double dblDebitTotal = 0.00;
     double dblCreditTotal = 0.00;
     HttpSession session = req.getSession(true);
Enumeration ea = session.getAttributeNames();
     while(ea.hasMoreElements()) {
     Object name = ea.nextElement();
     System.out.println("values = " + session.getAttribute((String)name));
     try {
     resultMessageLastBalance = mtdRetrieveLastBalance(req);
     rsTrxnDetailLastBalance = resultMessageLastBalance.getRecordSet("formonthtrxn");
     } catch (Exception e) {
     e.printStackTrace();
     e.getMessage();
     File csvFile;
     FileOutputStream file;
     //codes to generate a file in local server for downloading
     Calendar calendar = Calendar.getInstance();
     String strFileName = Integer.toString(calendar.get(Calendar.YEAR))+Integer.toString(calendar.get(Calendar.MONTH))+Integer.toString(calendar.get(Calendar.DATE))+Integer.toString(calendar.get(Calendar.HOUR))+Integer.toString(calendar.get(Calendar.MINUTE))+Integer.toString(calendar.get(Calendar.SECOND))+Integer.toString(calendar.get(Calendar.MILLISECOND));
     try {
          strFileName = DeformatAcctNo(req.getParameter("acct_stmt__acctselected")) + strFileName + ".csv";
     } catch (Exception e) {}
     calendar = null;
     csvFile = new File(strFileName);
     if (!csvFile.exists()) {
     csvFile.createNewFile();
     file = new FileOutputStream(csvFile);
     if (rsTrxnDetailLastBalance.getTotalRowCount() >= 1) {
     String strLastBal = "";
     String strCurrCd = "";
          try {
                    rsTrxnDetailLastBalance.moveLast();
     strLastBal = rsTrxnDetailLastBalance.getValue("bal");
                    rsTrxnDetailLastBalance.moveFirst();
     strCurrCd = "(" + GetCurrCdFromSession(session, req.getParameter("acct_stmt__acctselected")) + ")";
     file.write(("\""+req.getParameter("acct_stmt__acctselected")+"\"").getBytes());
     file.write(',');
     file.write(',');
     file.write(',');
     file.write(',');
     file.write(',');
     file.write(("\""+"Last Balance "+strCurrCd+" = "+strLastBal+"\"").getBytes());
     file.write('\n');
     file.write(("\""+"Date"+"\"").getBytes());
     file.write(',');
     file.write(("\""+"Slip No"+"\"").getBytes());
     file.write(',');
     file.write(("\""+"Description"+"\"").getBytes());
     file.write(',');
     file.write(("\""+"Debit"+" "+strCurrCd+"\"").getBytes());
     file.write(',');
     file.write(("\""+"Credit"+" "+strCurrCd+"\"").getBytes());
     file.write(',');
     file.write(("\""+"Balance"+" "+strCurrCd+"\"").getBytes());
     file.write('\n');
     } catch (Exception e) {System.out.println("!");}
while(rsTrxnDetailLastBalance.moveNext()) {
     try {
     file.write(("\""+rsTrxnDetailLastBalance.getValue("txn_dt").substring(0,12)+"\"").getBytes());
file.write(',');
     file.write(("\""+rsTrxnDetailLastBalance.getValue("slip_no")+"\"").getBytes());
     file.write(',');
     file.write(("\""+rsTrxnDetailLastBalance.getValue("dscp")+"\"").getBytes());
     file.write(',');
     file.write(("\""+rsTrxnDetailLastBalance.getValue("debit")+"\"").getBytes());
     file.write(',');
     file.write(("\""+rsTrxnDetailLastBalance.getValue("credit")+"\"").getBytes());
     file.write(',');
     file.write(("\""+rsTrxnDetailLastBalance.getValue("bal")+"\"").getBytes());
     file.write('\n');
     } catch(Exception e) {}
     try {
                         dblDebitTotal += Double.parseDouble(rsTrxnDetailLastBalance.getValue("debit"));
     } catch (Exception e) {
                         dblDebitTotal = 0;
     try {
                         dblCreditTotal += Double.parseDouble(rsTrxnDetailLastBalance.getValue("credit"));
     } catch (Exception e) {
                         dblCreditTotal = 0;
     file.write(',');
     file.write(',');
     file.write(("\""+"Total"+"\"").getBytes());
     file.write(',');
     file.write(("\""+Double.toString(dblDebitTotal)+"\"").getBytes());
     file.write(',');
     file.write(("\""+Double.toString(dblCreditTotal)+"\"").getBytes());
     } else {
     file.write(("\""+"No Record Found!"+"\"").getBytes());
     file.close();
     res.setContentType("application/download");
     res.setHeader("Content-Disposition","attachment;filename=" + strFileName);
               javax.servlet.ServletOutputStream servletoutputstream1 = res.getOutputStream();
     String s = strFileName;
     dumpFile(s, servletoutputstream1);
     servletoutputstream1.flush();
     servletoutputstream1.close();
public void doPost(HttpServletRequest req, HttpServletResponse res) throws IOException, ServletException {
          doGet(req, res);
private void dumpFile(String s, OutputStream outputstream) {
byte abyte0[] = new byte[4096];
     boolean flag = true;
     try {
     FileInputStream fileinputstream = new FileInputStream(s);
     int i;
     while((i = fileinputstream.read(abyte0)) != -1)
     outputstream.write(abyte0, 0, i);
     fileinputstream.close();
     } catch(Exception e) {}
private Message mtdRetrieveLastBalance(HttpServletRequest req) throws Exception {
     Message msgMessage = new Message();
     DAC.Parser.RecordSet objFund_Tx = msgMessage.createRecordSet("formonthtrxn");
     //Set the header fields for the record
     objFund_Tx.addHeaderFields("acctselected","String");
     objFund_Tx.addHeaderFields("formonth","String");
     objFund_Tx.addHeaderFields("foryear","String");
     //Add a new row to the recordset
     objFund_Tx.addRow();
     msgMessage.setData("recordnm", "string", "formonthtrxn");
     //Set the required fields into the recordset
     objFund_Tx.setValue("acctselected", DeformatAcctNo(req.getParameter("acct_stmt__acctselected")));
     objFund_Tx.setValue("formonth", req.getParameter("acct_stmt__formonth"));
     objFund_Tx.setValue("foryear", req.getParameter("acct_stmt__foryear"));
     objFund_Tx.setStatus("select");
     System.out.println("JSP IN :"+msgMessage);
     msgMessage = mtdOpenConnection(msgMessage);
     System.out.println("JSP OUT :"+msgMessage);
     return msgMessage;
private Message mtdOpenConnection(Message objMessage) throws Exception {
java.util.Hashtable ht = new java.util.Hashtable();
     ht.put(javax.naming.Context.INITIAL_CONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory");
     ht.put(javax.naming.Context.PROVIDER_URL, "t3://localhost:7001");
javax.naming.InitialContext ic = new javax.naming.InitialContext(ht);
DAC.BusinessObjects.RIB.Account.AccountHome pmHome = (DAC.BusinessObjects.RIB.Account.AccountHome)PortableRemoteObject.narrow(ic.lookup("AccountEJB"),Class.forName("DAC.BusinessObjects.RIB.Account.AccountHome"));
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private String convertSingleDigitMonthDayToDouble(String param) throws Exception {
     if (param.length() > 1) {
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     //remove dashes and product name and branch code from string
     private String DeformatAcctNo(String strAcctNo) throws Exception {
          strAcctNo.trim();
          return strAcctNo.substring(0,3)+strAcctNo.substring(4,6)+strAcctNo.substring(7,12)+strAcctNo.substring(13,14);
     private     String GetCurrCdFromSession(HttpSession session, String acct_no) throws Exception {
          String strAcctDetail = "";
          String strCurrCd = "";
          Vector vList = (Vector)session.getAttribute("accountlist");
          for (int i = 0; i < vList.size(); i++) {
               strAcctDetail = (String)vList.get(i);
               if ((strAcctDetail.substring(0, acct_no.length()).equals(acct_no))) {
                    strCurrCd = strAcctDetail.substring(strAcctDetail.indexOf(":") + 1, (strAcctDetail.indexOf(":") + 4));
                    break;
          vList = null;
          strAcctDetail = null;
          return strCurrCd;
}

Fire() and subscribe() not working

Hi
I have a DC which contains 2 Applications, 2 diiferent components.There is a link in the first application's iview which opens the second application in the content area. I did this using WDPortalNavigation.navigateAbsolute(). Now i want to move some data from second application to the first application. For this i m using Subscribe() and Fire() method in both the iviews as follows:
in the sender (second) application:
WDPortalEventing.fire("urn:com.sap.try.cust", "Code", code);
in the receiver (first) application:
in it's wdDoInit() method:
WDPortalEventing.subscribe("urn:com.sap.try.cust", "Code", wdThis.wdGetReceiveCodeAction());
public void onActionReceiveCode(com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent, java.lang.String code )
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the context attribute Ctx_BACode is mapped to UIElement for displaying.
When i run this application, i am able to move from first application to second application, but when i click to send the data to the first application, it doesn't go.
Could anybody please suggest a way about it?
Thanks & regards,
Anupreet

Hello Anupreet,
Did you check this WebDynPro communication.... ?
Best regards, Maksim Rashchynski

Central custom css deklaration in Netweaver?

Hi,
is it possible to apply a costum css file with styles for all elemtents in the Netweaver portal. Like jsp, webdynpro, etc. I know for this issue you should use a motive and the motive editor, but the options in this editor and the functions are sometimes not the best solution.
The best solution would be a central css file in which you have the possibility to style all your elements by stylesheets. Is there an css import in the motives? exists an empty motive so that I can overwrite the generated css files? Are there other controlmechanisms for web dynpro elements? Can I edit the css classnames of the web dynpro elements?
Thanks for your help. Buy.

Hi Jan,
Thanks for answer. Yes a external facing portal fits my needs. I have implemented one, but the central theme is only editable with the helb of the motive editor (http://help.sap.com/saphelp_nw04s/helpdata/EN/43/86b6bce99d72a7e10000000a11466f/content.htm TASK 6). And you have to agree to me that the functionality of this editor isn't exactly brilliant CSS 1, some of the Webdnpro elements are not editable, the support of firefox is bad, you can define padding, color, images, etc. But sometimes that is not enough.
So it would be perfect if there is a way to define my own custom "theme.css" with the styling information for my navigation iviews, siteheader, footer, brand, web dynpro registers, input boxes, etc.
So has anybody ideas or experiences for this area?

BI Reports in Web Dynpro iView

Hi Experts,
I need a favour from you in estimating small requirement with BI reports & Web Dynpro iView.
My first query, is it possible to build horizontal drilldown menus
Second query, is it possible link the BI Reports from Web Dynpro application
third query, is it possible to put both Web Dynpro iView & BI Reports view in one Portal iView.
If all the above are possible, I have a requirement that should fulfil the below
In a portl iView, I have several BI Reports displays based on called report. But at the moment links to the report are in simple hyper link. Instead of hyperlinks, I want a horizontal menus as hierarchical/child structure. To acomplish this I chose, Web Dynpro as the best solution.
I have some development exeperience in Web Dynpro, but never encounterd such a requirement.
If any one can help me out in estimation, posibilites of the solution that would be a great help for me.
Your help will be highly appreciated.
Thanks in Advance,
Chinna.

Hi Chinna,
Check the following threads:
Show BI report in a Web Dynpro App
BI data in Web Dynpro
Re: How to create a Report from WebDympro
Re: BW server details from webdynpro
/community [original link is broken]://Bi,Portal Webdynpro
And a How To Guide:
https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/60f35908-ecd4-2910-6c89-e75e1054d9d1
https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/a303e745-0d01-0010-b280-802bca844b8f
*Second query, is it possible link the BI Reports from Web Dynpro application
third query, is it possible to put both Web Dynpro iView & BI Reports view in one Portal iView.*
You can not assign two types of app in a single iview but you can have multiple iviews assigned to a page.
This will guide you.
Regards.
Rajat

Communication between jsp and abstractportalcomponent

Hello All
Communication between jsp and abstractPortalComponent.
jsp contains one input text field and one submit button.
when the user clicks on submit button it will call the component and that input value will
display in same jsp page.
how this communication will happen?
Rgrds
Sri

Hi Srikanth,
In the JAVA File,
OnSubmit Event,
String inputvalue ;
InputField myInputField = (InputField) getComponentByName("Input_Field_ID");
if (myInputField != null) {
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request.putValue("textvalue", inputvalue);
request is IPORTALCOMPONENTREQUEST Object.
In JSP File,   to retreive the value,
<%
String textstring = (String) ComponentRequest.getValue("textvalue");
%>
In PORTALAPP.XML File,
<component name="component name">
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        <property name="ClassName" value="classname"/>
        <property name="SafetyLevel" value="no_safety"/>
      </component-config>
      <component-profile>
        <property name="tagLib" value="/SERVICE/htmlb/taglib/htmlb.tld"/>
      </component-profile>
    </component>
Using the code above, You can pass and read values between abstract portal component and Jsp Page.
Instead of this, I suggest you to use JSPDYNPAGE Component for Data Exchange.
Check the [Link|http://help.sap.com/saphelp_nw2004s/helpdata/de/ce/e0a341354ca309e10000000a155106/frameset.htm].
Hope this helps you.
Regards,
Eben Joyson

JSP Webdynpro communication

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