Calling a Method in Bean from JSP

Is there a defined jsp tag for calling a method in a Bean? Right now, in a bean named "bean", I would use: <% bean.doSomething(); %>. Is there a tag for this?

I've wondered this too, the getProperty and setProperty tags only allow you call setters and getters. What if you've got a method called doSomething()?

Similar Messages

How to call a method in bean from application module Impl?

i have to call a method which is in a bean from AppmoduleImpl class. Is it possible ?

The model layer should never depend on a specific view layer - this breaks reusability.
What you need to do is expose a service method on your AM. Then your view can call this method and pass a parameter into the model layer.

Calling a method in AbstractPortalComponent from JSP

Hi,
I have an abstract portal component with 2 methods:
1. doContent - in this, I specify the name of the jsp to be included in the response - umlogonPage, and am setting a portal event named 'fireCRMRFC'.
2. dofireCRMRFC - in this, I specify the code to connect to the backend crm and get back some value.
In my umLogonPage.jsp, how can I trigger the method 'doFireCRMRFC'? Is it possible at all?
Thanks
OJ

Hi Praveen
I understand you partially...I have implemented this:
public void doContent(IPortalComponentRequest request, IPortalComponentResponse response)
          IResource jspResource = request.getResource("jsp", "/umLogonPage.jsp");
          response.include(request, jspResource);
          IPortalComponentURI rfcURI = request.createPortalComponentURI();
          rfcURI.setPortalRequestEvent(request.createRequestEvent("fireCRMRFC"));
and
public void dofireCRMRFC(IPortalComponentRequest portalReq, IEvent event){
<Connectivity code to backend.>
And I read in another thread and help site that I can raise an event from the jsp to this method (maybe through the doCOntent), but it said this is possible. Can you give me an example of a code that I would have to use in my jsp?
I am trying to understand how this works so I really appreciate your willingness to help.
Thanks
oj

Calling a method in AbstractPortalComponent from JSP without htmlb

Hi,
I am trying to trigger an event in a java method in an AbstractPortalComponent from a jsp.
The event is caught in method doContent:
IPageContext myContext = PageContextFactory.createPageContext(request, response);
Event lastEvent = myContext.getCurrentEvent();
if ((lastEvent != null) && (lastEvent.getComponentName().equals("Compute"))) {
response.write("Compute");
The problem is that I cannot trigger it from my jsp. In the jsp is used:
<%
IPortalComponentURI uri = componentRequest.createPortalComponentURI();
uri.setPortalRequestEvent(componentRequest.createRequestEvent("Compute"));
String linkEvent = uri.toString();
%>
and
<.a href="<%=linkEvent%>">click</a.>
(i put some dots because otherwise the editor sees it as html)
Please help.
Raymond

Hi Praveen,
It still does not work. presentEvent is null.
In line: if (null != event && "Compute".equalsIgnoreCase(presentEvent.getAction())) you wrote "event" Shouldn't that be presentEvent. I changed it to presentEvent.
I think the problem is in the jsp. It seems to me that the jsp is not sending a correct event.
Please keep in mind that I am not using htmlb in my jsp.
Raymond

Calling Beans from JSP page

hi,
I tried to my best to call java beans from JSP page but it generate error that "unable to load class....", please help me that in which directory jsp file and bean *.class file reside, currently my setting are as follows.
Note: I am using tomcat server and my jsp and servlet files are running seccessfuly, there is any special change in classpath for java beans? if any please tell
My jsp file is in tomcat-->webapps-->jsp--><my file>
My bean (*.class) file-->webapps-->Root-->web-inf-->classes--><my file>
Pleae help me for the above problem.
Mubashar ([email protected])

According to J2EE standards:
The web appl directory structure should be:
WebAppRootDirectory
|
|---html, jsp, images etc
|
|---WEB-INF---
|---classes--
|---lib
|
|
1) Make sure WEB-INF is in capital letters
2) Place all ur beans in classes dir or sub-directory in
classes
3) In Tomcat place WebAppRootDirectory in webapps
directory
[email protected]

How to call java bean from jsp

hi
How to call a java bean from jsp page..
Is any other way to call javabean from jsp page apart from this sample code...
<jsp:useBean id="obj" class="com.devsphere.articles.calltag.TestBean"/>
thnx in advance

If you also use servlets, you can attach beans to the request or session and use them directly in your JSP's. So if you do:
request.setAttribute("name", yourBean);and then forward to a JSP, you can reference the bean like:
${requestScope.name}

How to call Java Beans from JSP (eg.put them in a WAR or package)

Can anyone explain to me what are the steps and ways to call java beans from JSP?

1st, put the javabean classes in the right place:
the web-inf/classes/your_bean.class directory of corresponding web application
2nd in your jsp page:
<jsp:useBean id="obj_var_name" class="your_bean"/>
<jsp:setProperty name="obj_var_name" property="smthg" value="smthg_calue"/>
Micheal

Anyone know the way to call SQLLoader utility or similar from JSP/Servlet?

Anyone know the way to call SQLLoader utility or similar from JSP or Servlet?
i would like to make a big data load from web interface, using SQL Loader or similar, because this utility allows a great performance.
I think that i can make a JSP or Servlet to open file, and create insert statement into a loop, but the performance is very bad for 30000 inpuits.
Help me please
Thanks
Note: my english is very bad. Sorry.

Hi there,
I tried this codes into a Bean like this:
package com.tuxedo.beans;
import java.io.*;
public class TuxTest
     public void RunTest()
          try{
               Runtime rt = Runtime.getRuntime();
               Process pr = rt.exec("command /k c:\test.bat");
          } catch (IOException e) {
               System.err.println("Error: " + e.getMessage());
}and call it with a JSP like this:
<html>
<head><title>Tuxedo Test</title></head>
<body>
To run a test on local batch file
<jsp:useBean id="test1 " class="com.tuxedo.beans.TuxTest"/>
<jsp: RunTest name="test1"/>
</body>
</html>i had created folder %tomcat%\webapps\ROOT\WEB-INF\classes\com\tuxedo\beans to store the bean.
Yet the JSP file executed, but i dun see any response by calling the batch file, anyone have any idea?
the batch file is like this:
@echo off
echo
echo Hello World!
echo
pausePlease help!

Create Form Beans from JSP/HTML forms

In the Builder certification objectives, there is one called "Create Form Beans from JSP/HTML forms". How can I do that? How can I create a form beam starting from the JSP form or HTML form?

Guys, no one from forum can answer this question?

How to use the same bean from Jsp and Servlet

I want to use the same bean instance from both the servlet and jsp.
for eg. if a create a bean using the jsp:useBean in servlet and if a modify some values, that values should be reflected while i access the same bean from the servlet. But instead of that the servlet is creating a new instance of the bean.
is it possible?
Thanks in advance

Hi,
When you call jsp:useBean you inform a scope (session, request, page...)
This means the bean instance will be stored in that scope.
So, if the informed scope is session, then, in the servlet you could get the bean instance back from the session, this way:
HttpSession session = request.getSession();
Bean b = (Bean) session.getAttribute("bean_id");
Regards,
Filipe Fedalto

Calling PL/SQL stored procedure from JSP tag

Hello,
I need to call a PL/SQL procedure from a JSP tag , I donot want to use any Bean to call the PL/SQL procedure. How would I call PL/SQL stored procedure from within JSP using JSP tag library, need some code.
Thank you
Syed

need to call a PL/SQL procedure from a JSP tag , I donot want to use any Bean to call the PL/SQL procedure. How would I call PL/SQL stored procedure from within JSP using JSP tag library, need some code.
regards
Indira Rani Bandi

Error while calling a method on Bean (EJB 3.0)

I am getting an error while calling a method on EJB. I am using EJB3.0 and my bean is getting properly deployed(i am sure b'cos i can see the successfullly deployed message). Can any body help me
Error is -->
Error while destroying resource :An I/O error has occured while flushing the output - Exception: java.io.IOException: An established connection was aborted by the software in your host machine
Stack Trace:
java.io.IOException: An established connection was aborted by the software in your host machine
at sun.nio.ch.SocketDispatcher.write0(Native Method)
at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:33)
at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:104)
at sun.nio.ch.IOUtil.write(IOUtil.java:75)
at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:302)
at com.sun.enterprise.server.ss.provider.ASOutputStream.write(ASOutputStream.java:138)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
at org.postgresql.PG_Stream.flush(PG_Stream.java:352)
at org.postgresql.core.QueryExecutor.sendQuery(QueryExecutor.java:159)
at org.postgresql.core.QueryExecutor.execute(QueryExecutor.java:70)
at org.postgresql.jdbc1.AbstractJdbc1Connection.ExecSQL(AbstractJdbc1Connection.java:482)
at org.postgresql.jdbc1.AbstractJdbc1Connection.ExecSQL(AbstractJdbc1Connection.java:461)
at org.postgresql.jdbc1.AbstractJdbc1Connection.rollback(AbstractJdbc1Connection.java:1031)
at org.postgresql.jdbc2.optional.PooledConnectionImpl$ConnectionHandler.invoke(PooledConnectionImpl.java:223)
at $Proxy34.close(Unknown Source)
at com.sun.gjc.spi.ManagedConnection.destroy(ManagedConnection.java:274)
at com.sun.enterprise.resource.LocalTxConnectorAllocator.destroyResource(LocalTxConnectorAllocator.java:103)
at com.sun.enterprise.resource.AbstractResourcePool.destroyResource(AbstractResourcePool.java:603)
at com.sun.enterprise.resource.AbstractResourcePool.resourceErrorOccurred(AbstractResourcePool.java:713)
at com.sun.enterprise.resource.PoolManagerImpl.putbackResourceToPool(PoolManagerImpl.java:424)
at com.sun.enterprise.resource.PoolManagerImpl.resourceClosed(PoolManagerImpl.java:393)
at com.sun.enterprise.resource.LocalTxConnectionEventListener.connectionClosed(LocalTxConnectionEventListener.java:69)
at com.sun.gjc.spi.ManagedConnection.connectionClosed(ManagedConnection.java:618)
at com.sun.gjc.spi.ConnectionHolder.close(ConnectionHolder.java:163)
at oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.closeDatasourceConnection(DatabaseAccessor.java:379)
at oracle.toplink.essentials.internal.databaseaccess.DatasourceAccessor.closeConnection(DatasourceAccessor.java:367)
at oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.closeConnection(DatabaseAccessor.java:402)
at oracle.toplink.essentials.internal.databaseaccess.DatasourceAccessor.afterJTSTransaction(DatasourceAccessor.java:100)
at oracle.toplink.essentials.threetier.ClientSession.afterTransaction(ClientSession.java:104)
at oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.afterTransaction(UnitOfWorkImpl.java:1816)
at oracle.toplink.essentials.transaction.AbstractSynchronizationListener.afterCompletion(AbstractSynchronizationListener.java:161)
at oracle.toplink.essentials.transaction.JTASynchronizationListener.afterCompletion(JTASynchronizationListener.java:87)
at com.sun.ejb.containers.ContainerSynchronization.afterCompletion(ContainerSynchronization.java:174)
at com.sun.enterprise.distributedtx.J2EETransaction.commit(J2EETransaction.java:467)
at com.sun.enterprise.distributedtx.J2EETransactionManagerOpt.commit(J2EETransactionManagerOpt.java:357)
at com.sun.ejb.containers.BaseContainer.completeNewTx(BaseContainer.java:3653)
at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:3431)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1247)
at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:197)
at com.sun.ejb.containers.EJBObjectInvocationHandlerDelegate.invoke(EJBObjectInvocationHandlerDelegate.java:110)
at $Proxy84.addDepartment(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at com.sun.corba.ee.impl.presentation.rmi.ReflectiveTie._invoke(ReflectiveTie.java:121)
at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatchToServant(CorbaServerRequestDispatcherImpl.java:650)
at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatch(CorbaServerRequestDispatcherImpl.java:193)
at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequestRequest(CorbaMessageMediatorImpl.java:1705)
at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:1565)
at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleInput(CorbaMessageMediatorImpl.java:947)
at com.sun.corba.ee.impl.protocol.giopmsgheaders.RequestMessage_1_2.callback(RequestMessage_1_2.java:178)
at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:717)
at com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.dispatch(SocketOrChannelConnectionImpl.java:473)
at com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.doWork(SocketOrChannelConnectionImpl.java:1270)
at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:479)
End of Stack Trace
|#]
RAR5035:Unexpected exception while destroying resource. To get exception stack, please change log level to FINE.
EJB5018: An exception was thrown during an ejb invocation on [DepartmentSessionBean]
javax.ejb.EJBException: Unable to complete container-managed transaction.; nested exception is: javax.transaction.SystemException
javax.transaction.SystemException
at com.sun.enterprise.distributedtx.J2EETransaction.commit(J2EETransaction.java:452)
at com.sun.enterprise.distributedtx.J2EETransactionManagerOpt.commit(J2EETransactionManagerOpt.java:357)
at com.sun.ejb.containers.BaseContainer.completeNewTx(BaseContainer.java:3653)
at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:3431)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1247)
at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:197)
at com.sun.ejb.containers.EJBObjectInvocationHandlerDelegate.invoke(EJBObjectInvocationHandlerDelegate.java:110)
at $Proxy84.addDepartment(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

Means theres an error in XML/ABAP conversion probably due a syntax error...
Regards
Juan

How to call cystal report8 report file from jsp page

hi guys
present i am using cystal report8 already i am having ReportViewer.jar and ReportviewerBean.jar files
using that please send me sample code how to call that report from jsp page..
and how to pass the parameters from jsp page to crystalreport8 report file.
it was very urgent task to me..so please send sample code on above topic..
or send me crystalreport8 API
thanks
regards

Hi,
I also want to work on crystal report but i dont have the ReportViewerBean.jar and ReportViewer.jar. So, please tell from where will i get those jar files.
Thanks in advanced.

Calling a method in Class from webdynpro

Hi All,
I have to perform some action when i click the button created in my webdynpro screen.
However I must not write the code for the button action inside the button event. But I have to create a class and inside the class i have to create the method for this button event.
Can anyone tell me how to call a method in a class created in SE24 from webdynpro on clicking the button.
Thanks in advance.

hi..
When you want to perform some action after clicking a Button, then you have to write the code only in 'Events' - 'On Action' event. From your question, i assume that, you wanna use Assistance class in your webdynpro so as to increase better performance. Here is the link which will guide yuo with screen shot for using assistance class in WD-ABAP.
http://wiki.sdn.sap.com/wiki/display/WDABAP/AssistanceclassfunctionalityinWDA
thanks,
Padma

Calling a method in view from component controller?

Hi,
Is it posible to call a method that is defined in the Component Controller in the View?
If it is posible please give some sample code how to call the method?
Regards,
Padmalatha.K

Padmalatha, all the methods defined in a controller from 'Methods' tab are instance methods. An instance method defined in a component controller is callable from any view controller that holds a reference to the component controller.
Defining methods between the tags
//@@begin others
//@@end
is useful if you want to declare static methods.

Calling a Method in Bean from JSP

Similar Messages

Maybe you are looking for