DispatchAction Example Continued...

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(2) ActionForm Class

package com.visualbuilder;

import org.apache.struts.action.ActionForm;

public class InputForm extends ActionForm{

}

(3) ActionClass

Note:- Now all the action classes must imherit the org.apache.struts.action.DispatchAction Class and not the org.apache.struts.action.Action Class.

package com.visualbuilder;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.ActionMessages;

import org.apache.struts.action.ActionForm;

import org.apache.struts.action.ActionForward;

import org.apache.struts.action.ActionMapping;

import org.apache.struts.action.ActionMessage;

import org.apache.struts.action.ActionMessages;

import org.apache.struts.actions.DispatchAction;

public class DispatchActionExample extends DispatchAction{

protected ActionForward unspecified(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)

throws Exception {

                ActionMessages message = new ActionMessages();

                message.add("unspecified",new ActionMessage("error.unspecified"));

                saveMessages(request, message);

        return mapping.getInputForward();

}

public ActionForward view(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception{

                ActionMessages message = new ActionMessages();

                message.add("unspecified",new ActionMessage("error.view"));

                saveMessages(request, message);

        return mapping.getInputForward();

}

public ActionForward add(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception{

                ActionMessages message = new ActionMessages();

                message.add("unspecified",new ActionMessage("error.add"));

                saveMessages(request, message);

        return mapping.getInputForward();

}

public ActionForward delete(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {

                ActionMessages message = new ActionMessages();

                message.add("unspecified",new ActionMessage("error.delete"));

                saveMessages(request, message);

        return mapping.getInputForward();

}

}

(4) JSP Page

<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>

<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %>

<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html:html>

<logic:messagesPresent>

<html:messages id="msg">

<bean:write name="msg" />

</html:messages>

</logic:messagesPresent>

<logic:messagesPresent message="true">

<html:messages message="true" id="msg">

 <bean:write name="msg" />

</html:messages>

</logic:messagesPresent>

<html:form action="/dispatchActionExample.do?method=add" method="post">

 <html:submit>Submit for add</html:submit>

</html:form>

<html:form action="/dispatchActionExample.do?method=view" method="post">

 <html:submit>Submit for view</html:submit>

</html:form>

<html:form action="/dispatchActionExample.do?method=delete" method="post">

 <html:submit>Submit for delete</html:submit>

</html:form>

<html:form action="/dispatchActionExample.do" method="post">

 <html:submit>Submit for unspecified</html:submit>

</html:form>