could not display java values in velocity vm template

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could not display java values in velocity vm template

by newbie-gero :: Rate this Message:

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Greetings,
i have just started out velocity and i not able to put the java values on the vm template.

I have upload my file here. I'm using Jboss and dunmping the file into the server should work instantly
this is the file: velocity.war.zip

This is the java file where i have written the codes and to be pass to the velocity

package com.velocityData.velocityObj;

import java.io.StringWriter;

import java.util.*;
import java.util.ArrayList;
import java.util.Map;
import java.util.HashMap;

import org.apache.velocity.Template;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.VelocityEngine;
import org.apache.velocity.app.Velocity;
import org.apache.velocity.context.Context;
import org.apache.velocity.exception.ParseErrorException;
import org.apache.velocity.exception.ResourceNotFoundException;
//import org.apache.velocity.servlet.VelocityServlet;

import javax.servlet.ServletConfig;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Properties;

public class velocityTest {

static String vmPath = "";
static String language = "";
public String handleRequest(ArrayList velocityList, ArrayList notificationList) throws Exception {

vmPath = (String)velocityList.get(0);
language = (String)velocityList.get(1);

Properties p = new Properties();
p.setProperty( "resource.loader", "class" );
p.setProperty( "class.resource.loader.class", "org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader" );

VelocityEngine ve = new VelocityEngine();
ve.init(p);
System.out.println("Inside the velocityTest_________________________");
ArrayList list = new ArrayList();
Map map = new HashMap();

//map.put("name", "horse");
//map.put("price", "$100.00");
//list.add(map);

for ( int i=0; i < notificationList.size(); i++) {
map.put("Variable"+i,notificationList.get(i));

}

list.add(map);

Collection c = map.values();
Iterator itr = c.iterator();
while(itr.hasNext())
System.out.println(itr.next());

VelocityContext context = new VelocityContext();

context.put("emailList", list);
Template t = null;
try
{
t = ve.getTemplate( vmPath + language);
}
catch (ResourceNotFoundException e)
{
e.printStackTrace();
}
catch (ParseErrorException e)
{
e.printStackTrace();
}
catch (Exception e)
{
e.printStackTrace();
}
StringWriter writer = new StringWriter();
t.merge( context, writer );
// System.out.println( writer.toString() );
return writer.toString();
}
}

This is the vm template i create

<HTML>
<HEAD>
<TITLE> Booking Confirmation</TITLE>
</HEAD>

<BODY>
 
#set( $count = 1 )

#foreach ( $email in $emailList)
Transaction No: $email.variable0
 

Date: $email.variable1
 
 

Total purchased: $email.variable2
 

Total amount charged: $email.variable3
 
 

=============================================================================
 

Dear $email.variable4 ,
$email.variable2
 
 

Delivery: $email.variable5
 
 

Your Internet Account number is $email.variable6 
#set( $count = $count + 1 )

#end

Thank you
</BODY>
</HTML>

I want to replace the $email.variable1, $email.variable2, $email.variable3 and so with the java values. But instead of display the value it display $email.variable1, $email.variable2 etc on the client browser.

Please do give me guidance

Thanks

Re: could not display java values in velocity vm template

by Christopher Schultz-2 :: Rate this Message:

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To whom it may concern,

newbie-gero wrote:
> ArrayList list = new ArrayList();
> Map map = new HashMap();
>
> for ( int i=0; i < notificationList.size(); i++) {
> map.put("Variable"+i,notificationList.get(i));
> }

Note: key values start with "Variable" (with a leading capital letter).

> list.add(map);

Ok.

[snip]

> context.put("emailList", list);

Ok.

> #foreach ( $email in $emailList)
> Transaction No: $email.variable0
> 

I think you want:

Transation No: $email.Variable0

Velocity first looks for a method called "getVaraiable0()" on whatever
object "email" is. Since "email" is a map, that method does not exist.
Then, Velocity looks for a method called "get" that takes a String
argument (which Map does), and calls get with the String from the
reference (in this case, "varaiable0"). Note that the lookup is
case-sensitive.

I think you just need to capitalize "Variable0" and you'll be good to go.

-chris

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