Action & Java class

Question

Experts,
  I have a button called 'Go' in JSP.
1. When I click on the button, how can I capture the events?
2. After clicking on the event, I need to call the Java class to perform some backend activity. Pls guide me how?
3. After this, goto next page called result.jsp.
I've gone thro, "Development and Extension Guide u2013 SAP E-Commerce 7.0", but I dont understand how to intergrate the JSP & actions.
Please advise with steps & code..Appreciate your help..
BM

Answer 1

Hi Bharathi,
If you can open JSP file code in text editor then you can see what JavaScript function is called when you click Go.
Suppose you do not know JSP file name on which Go button is then call your application by below URL with parameter to display JSP File name.
http://<server>:<port>/b2b/b2b/init.do?showmodulename=true
Suppose your go button is on xyz.jsp file and your Go button call submitXYZform() JavaScript function. If submitXYZform() javascript function not define in the file xyz.jsp then try to find out in included Javascript file in xyz.jsp
If java script function just submit the form then check <form> element in xyz.jsp file.
Suppose you use below form.
<form action="<isa:webappsURL name="b2b/xyzformAction.do"/>"
            id="form_positions"
            name="form_positions"
            method="post">
Go to config.xml file and try to find action as below
<action path="/b2b/xyzformAction" type="com.sap.isa.isacore.action.order.xyzformAction">
               <forward name="success" path="/b2b/result.do"/>
          </action>
If you want to add some custom code then you have to extend standard action class xyzformAction to Z_xyzformAction and update config.xml file
<!--<action path="/b2b/xyzformAction" type="com.sap.isa.isacore.action.order.xyzformAction">
               <forward name="success" path="/b2b/result.do"/>
          </action>-->
<action path="/b2b/xyzformAction" type="com.sap.isa.isacore.action.orderZ_.xyzformAction">
               <forward name="success" path="/b2b/result.do"/>
          </action>
As you have mentioned that you want to perform backend activity then you have to follow below step.
1. Create Backend Interface
2. Create Backend Object which Implement Backend Interface created in Step 1. Here you will use JCO API to call RFC, Set import parameter and get value and set value in Java varialbe from Export parameter
3. Add your backend Object class in "backend-config.xml file
4 Create Business Object to access Back end object
5 Create Business Object Manager to manage Business Object created in Step 4
6 Update "bom-config.xml" file for Business Object Manager created in Step 5
7 Use Busines Object in Action class or in JSP page to access data from Backend
After going through above step read Dev and Ext. Guide or Dev and Ext. Tutorial you will understand how to do it.
I hope this information will help you.
Regards.
eCommerce Developer