最近使用Velocity模板引擎，寫一個maven項目Coding生成工具。

對基于Java的模板引擎Velocity的demo總結如下：

Step1. 創建Maven項目，添加如下velocity的dependency到pom.xml中

org.apache.velocity

velocity

1.7

Step2. 創建模板文件HelloVelocity.vm

#set( $iAmVariable = "good!" )

Welcome $name to velocity.com

today is $date.

$iAmVariable

Step3. 創建Java文件HelloVelocity.java

package com.bestpay.velocity_demo;

import java.io.StringWriter;

import java.util.Date;

import org.apache.velocity.Template;

import org.apache.velocity.VelocityContext;

import org.apache.velocity.app.VelocityEngine;

import org.apache.velocity.runtime.RuntimeConstants;

import org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader;

/**

* First demo of using velocity

*/

public class HelloVelocity {

public static void main( String[] args ){

VelocityEngine velocityEngine = new VelocityEngine();

velocityEngine.setProperty(RuntimeConstants.RESOURCE_LOADER, "classpath");

velocityEngine.setProperty("classpath.resource.loader.class", ClasspathResourceLoader.class.getName());

velocityEngine.init();

Template template = velocityEngine.getTemplate("com/bestpay/velocity_demo/HelloVelocity.vm", "UTF-8");

VelocityContext context = new VelocityContext();

context.put("name", "liang01.ma");

context.put("date", new Date().toString());

StringWriter writer = new StringWriter();

template.merge(context, writer);

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

}

}

測試結果

Welcome liang01.ma to velocity.com

today is Wed Jul 20 16:57:49 CST 2016.

good!

總結

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