Use Velocity to generate HTML document
This Example shows you how
to generate HTML document using 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.
In
the HTMLdocument.vm
file we will set products, bgcolor value and use these variable to generate
HTML document
HTMLdocument.java:
import java.io.*;
import org.apache.velocity.*;
import org.apache.velocity.app.*;
import org.apache.velocity.tools.generic.RenderTool;
public class HTMLdocument {
public static void main(String[] args) throws Exception {
Velocity.init();
Template template = Velocity.getTemplate("./src/HTMLdocument.vm");
VelocityContext context = new VelocityContext();
Writer writer = new StringWriter();
template.merge(context, writer);
System.out.println(writer);
}
}
|
HTMLdocument.vm:
<html>
<body>
<table border="1">
#set ($rowCount = 1)
#set ($products = ["one", "two", "three","four"])
#foreach($product in $products)
#if ($rowCount % 2 == 0)
#set ($bgcolor = "#FFFFFF")
#else
#set ($bgcolor = "#CCCCCC")
#end
<tr>
<td bgcolor="$bgcolor">$product</td>
<td bgcolor="$bgcolor">$product</td>
</tr>
#set ($rowCount = $rowCount + 1)
#end
</table>
</body>
</html>
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Output:
<html>
<body>
<table border="1">
<tr>
<td bgcolor="#CCCCCC">one</td>
<td bgcolor="#CCCCCC">one</td>
</tr>
<tr>
<td bgcolor="#FFFFFF">two</td>
<td bgcolor="#FFFFFF">two</td>
</tr>
<tr>
<td bgcolor="#CCCCCC">three</td>
<td bgcolor="#CCCCCC">three</td>
</tr>
<tr>
<td bgcolor="#FFFFFF">four</td>
<td bgcolor="#FFFFFF">four</td>
</tr>
</table>
</body>
</html>
|
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