How to use List in velocity

This Example shows you how to use List in velocity.

This Example shows you how to use List in velocity.

How to use List in velocity

This Example shows you how to use List in velocity. The method used in this example are described below:-

1:- Initialize velocity run time engine through method init().
2:- Create object of VelocityContext Class.
3:- Create Template class object, Template class object is used for controlling template methods and properties.

template.merge(context, writer): Merge method of the Template class is used here for merging the VelocityContext class object to produce the output. Template class object is used for controlling template methods and properties.

#foreach( $stu in $stuList ): This is like the for loop statement but it has some different and enhanced functionality.

java.MapClass.java



import java.io.*;

import java.util.*;

import org.apache.velocity.*;

import org.apache.velocity.app.*;



public class
ListClass
{



  public static void main(String[] args)

  throws Exception {

  VelocityEngine ve = new VelocityEngine();

  ve.init();



  ArrayList list = new ArrayList();

  Map map = new HashMap();



  map.put("rno", "1");

  map.put("name", "komal");

  map.put("libno", 1001);

  list.add(map);



  map = new HashMap();

  map.put("rno", "2");

  map.put("name", "santosh");

  map.put("libno", 1002);

  list.add(map);



  map = new HashMap();

  map.put("rno", "3");

  map.put("name", "ajay");

  map.put("libno", 1003);

  list.add(map);



  VelocityContext context = new VelocityContext();

  context.put("stuList", list);

  Template t = ve.getTemplate("./src/velocity/XMLOutput/xml.vm");

  StringWriter writer = new StringWriter();



  t.merge(context, writer);

  System.out.println(writer.toString());

  }

}

map.vm

Student:



#foreach( $stu in $stuList )

    $stu.rno

  $stu.name

  $stu.libno



#end

Output :

Student:

1

komal

1001



2

Santosh

1002



3

Ajay

1003

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