Rfc call from html page

i wrote html code for entering username and password.
then i got output in html page as
SAP LOGON SCREEN
USER NAME
PASSWORD
ENTER
when the user press enter button both username and password has to check with data in ztable in sap.
validation has to done.
if input not match with sap ztable it should produce error message when user press enter buuton in html
please give me some steps to do rfc

Hi,
It is not possible to intract backend system from html alone, even we are not able to write java scripts too. So try to SAPNW to develope your application.
If you decide to create application via SAPNW then you can go with following steps,
1. Create application (Application, component, window and view)
2. Import model (it needs JCo details)
3. In controller create an object for function module which one you imported, bind it to model node, assign user name and password and use "exec" function to execute and get return values from backend system through another model node and display result as you wish.
4. Build, Deploy and Run your application
Good Luck!

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import java.lang.*;
import java.util.*;
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import java.io.*;
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I am trying to do an RFC call from Excel to SAP using VBA. RFC is working fine for most the RFC enabled Function Modules except DDIF_FIELDINFO_GET and DDIF_FIELDLABEL_GET.
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<REMOVED BY MODERATOR - REQUEST OR OFFER POINTS ARE FORBIDDEN>
Edited by: Alvaro Tejada Galindo on Nov 12, 2008 9:14 AM

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'* Sub     : Call FM /ZOPTION/LIVE_DDIF_FIELDINFO                         *
'* Author : Holger Köhn                                                  *
'* Created : 23.08.2014                                                   *
'* Changed :                                                              *
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'* create RFC-Connection                                                  *
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'* run FM /ZOPTION/LIVE_DDIF_FIELDINFO                                    *
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'* clear tblFIELDTAB                                                      *
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PS. Reward useful answers and earn points yourself

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Hello to everybody,
I am trying to parse the A tags & the Frame tags from HTML pages. I have developed the code below, which works for the A tags but it does not work for the Frame tags. Is there any idea about this?
private void getLinks() throws Exception {
     System.out.println(diskName);
links=new ArrayList();
frames=new ArrayList();
BufferedReader rd = new BufferedReader(new FileReader(diskName));
// Parse the HTML
EditorKit kit = new HTMLEditorKit();
HTMLDocument doc = (HTMLDocument)kit.createDefaultDocument();
doc.putProperty("IgnoreCharsetDirective", new Boolean(true));
try {
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// Find all the FRAME elements in the HTML document, It finds nothing
     HTMLDocument.Iterator it = doc.getIterator(HTML.Tag.FRAME);
while(it.isValid()) {
SimpleAttributeSet s = (SimpleAttributeSet)it.getAttributes();
String frameSrc = (String)s.getAttribute(HTML.Attribute.SRC);
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it = doc.getIterator(HTML.Tag.A);
while (it.isValid()) {
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String link = (String)s.getAttribute(HTML.Attribute.HREF);
int endOfSet=it.getEndOffset(),
startOfSet=it.getStartOffset();
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if (link != null)
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