How the Velocity official guide-velocity works

Basic Mode

When you use velocity in an application or a servlet, or anywhere else, it is usually handled as follows: Initialize velocity. Velocity can use two modes as a singleton mode for "separate runtime instances" (described in the following section), and you only need to initialize them once. Create a Context object (this is what is described later). Add your data object to the context. Select a template. The ' merge ' template and your data output.

In the code, using the singleton pattern through the Org.apache.velocity.app.Velocity class, the code is as follows:

01	Import Java.io.StringWriter;

02	Import Org.apache.velocity.VelocityContext;

03	Import Org.apache.velocity.Template;

04	Import org.apache.velocity.app.Velocity;

05	Import org.apache.velocity.exception.ResourceNotFoundException;

06	Import org.apache.velocity.exception.ParseErrorException;

07	Import org.apache.velocity.exception.MethodInvocationException;

08

09	Velocity.init ();

10

11	Velocitycontext context = new Velocitycontext ();