1.添加依赖

<dependency>
    <groupId>org.apache.velocity</groupId>
    <artifactId>velocity</artifactId>
    <version>1.7</version>
</dependency>

2.新建模版文件

3.classpath方式加载模版文件

public static void main(String[] args) {
        Properties p = new Properties();
        p.setProperty("class.resource.loader.class", "org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader");
        p.setProperty(VelocityEngine.RESOURCE_LOADER, "class");
        p.setProperty(VelocityEngine.INPUT_ENCODING, "UTF8");
        p.setProperty(VelocityEngine.OUTPUT_ENCODING, "UTF8");
        VelocityEngine velocityEngine = new VelocityEngine();
        velocityEngine.init(p);
        VelocityContext context = new VelocityContext();
        context.put("name", new String("Velocity"));
        Template template = null;
        try {
            template = velocityEngine.getTemplate("mytemplate.vm");
        } catch (Exception ignored) {
        }
        StringWriter sw = new StringWriter();
        assert template != null;
        template.merge(context, sw);
        System.out.println(sw.toString());
    }

4.file方式加载模版文件

 public static void main(String[] args) {
        Properties p = new Properties();
        p.setProperty(VelocityEngine.FILE_RESOURCE_LOADER_PATH, "/Users/icefox/Documents/sofastack/singleton/src/main/resources");
        p.setProperty(VelocityEngine.RESOURCE_LOADER, "file");
        p.setProperty(VelocityEngine.INPUT_ENCODING, "UTF8");
        p.setProperty(VelocityEngine.OUTPUT_ENCODING, "UTF8");
        VelocityEngine velocityEngine = new VelocityEngine();
        velocityEngine.init(p);
        VelocityContext context = new VelocityContext();
        context.put("name", "Velocity");
        Template template = null;
        try {
            template = velocityEngine.getTemplate("mytemplate.vm");
        } catch (Exception ignored) {
        }
        StringWriter sw = new StringWriter();
        assert template != null;
        template.merge(context, sw);
        System.out.println(sw.toString());
    }

5.控制台输出