Velocity 使用 java.util.Properties 來配置 Velocity

HelloWorldProperties.java

import java.io.StringWriter;
import java.io.Writer;
import java.util.Properties;

import org.apache.velocity.Template;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.Velocity;

public class HelloWorldProperties {

  public static void main(String[] args) throws Exception {
    Properties props = new Properties();
    props.put("input.encoding", "utf-8");

    Velocity.init(props);

    Template template = Velocity.getTemplate("./src/HelloWorld.vm");

    VelocityContext context = new VelocityContext();

    Writer writer = new StringWriter();
    template.merge(context, writer);

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

HelloWorld.vm

//File: HelloWorld.vm
Hello World!