I can't see anything wrong with your code. If you
want, you can download the source code from the book's
website at www.wiley.com/compbooks/goodwill
rc
--- Rama [EMAIL PROTECTED] wrote:
Hi,
I have been trying to implement Struts for a simple
applicaiton.
I am using WLS 6.1 and Struts 1.02.
Application: User enters a stock symbol and clicks
submit button in the index page.
if the value is SUNW , it is success and value is
displayed,
else it is failure , user is forwarded to starting
index page.
Here is the following code
index.jsp
%@ page language =java %
%@ taglib uri=/WEB-inf/struts-html.tld
prefix=html %
html:form action=Lookup name=lookupForm
type=LookupForm
Symbol : html:text property=symbol /
html:submit /
/html:form
.
LookupAction.java
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import org.apache.struts.action.*;
public class LookupAction extends Action
{
protected Double getQuote(String symbol)
{
if (symbol.equalsIgnoreCase(SUNW) )
{
return new Double(25.00);
}
return null;
}
public ActionForward execute(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response) throws
ServletException,IOException
{
Double price = null;
// set default target to success
String target = new String(success);
if (form != null)
{
// use the LookupFoprm to get request parameters.
LookupForm lookupForm = (LookupForm)form;
String symbol = lookupForm.getSymbol();
price = getQuote(symbol);
}
// set the target to failure
if (price == null)
{
target = new String(failure);
}
else
{
request.setAttribute(PRICE, price);
}
// forward to the appropriate view
return(mapping.findForward(target) );
}
}
LookupForm.java
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
public class LookupForm extends ActionForm
{
private String symbol = null;
public String getSymbol()
{
return (symbol);
}
public void setSymbol(String symbol)
{
this.symbol = symbol;
}
public void reset(ActionMapping mapping,
HttpServletRequest request)
{
this.symbol=null;
}
}
struts-config.xml
?xml version=1.0 encoding=ISO-8859-1 ?
!DOCTYPE struts-config PUBLIC -//Apache Software
Foundation//DTD Struts Configuration 1.0//EN
http://jakarta.apache.org/struts/dtds/struts-config_1_0.dtd;
struts-config
form-beans
form-bean name=lookupForm type=LookupForm /
/form-beans
action-mappings
action path=/Lookup type= LookupAction
name=lookupForm input=/index.jsp
forward name=success path=/quote.jsp /
forward name=failure path=/index.jsp /
/action
/action-mappings
/struts-config
This is the excerpt from web.xml
taglib
taglib-uri/WEB-INF/struts-html.tld/taglib-uri
taglib-location/WEB-INF/struts-html.tld/taglib-location
/taglib
servlet
servlet-nameaction/servlet-name
servlet-classorg.apache.struts.action.ActionServlet/servlet-class
init-param
param-nameconfig/param-name
param-value/WEB-INF/struts-config.xml/param-value
/init-param
load-on-startup1/load-on-startup
/servlet
servlet-mapping
servlet-nameaction/servlet-name
url-pattern*.do/url-pattern
/servlet-mapping
quote.jsp
.
Current Price : %= request.getAttribute(PRICE)
%
...
When I entered the SUNW in the text box, I am
forwarded to a blank page.
I am not seeing any results... why???
Please anyone let me know what I am missing?
Any ideas are really appreciated
Thanks in Advance
Rama
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