Java/Velocity/Output

Combine StringWriter with template

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import java.io.StringWriter;
import java.io.Writer;
import org.apache.velocity.Template;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.Velocity;
public class HelloWorldWithVariable {
  public static void main(String[] args) throws Exception {
    Velocity.init();
    Template template = Velocity.getTemplate("src/HelloWorldWithVariable.vm");
    VelocityContext context = new VelocityContext();
    context.put("name", "Joe Wang");
    Writer writer = new StringWriter();
    template.merge(context, writer);
    System.out.println(writer.toString());
  }
}
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Hello $name!

Output a string from Velocity

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import java.io.StringWriter;
import java.io.Writer;
import org.apache.velocity.Template;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.Velocity;
public class HelloWorld {
  public static void main(String[] args) throws Exception {
    Velocity.init();
    Template template = Velocity.getTemplate("./src/HelloWorld.vm");
    VelocityContext context = new VelocityContext();
    Writer writer = new StringWriter();
    template.merge(context, writer);
    System.out.println(writer.toString());
  }
}
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Hello World!