classpath资源路径加载：
velocity.properties文件配置
file.resource.loader.class = org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader input.encoding = UTF-8 output.encoding = UTF-8
Servlet代码
/**
* cn.jbit.servlet.ListServlet
* 2014-5-8
* gyy
*/
package cn.jbit.servlet;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.velocity.Template;
import org.apache.velocity.app.VelocityEngine;
import org.apache.velocity.context.Context;
import org.apache.velocity.tools.view.VelocityViewServlet;
import cn.jbit.entity.Order;
public class ListServlet extends VelocityViewServlet {
private static final long serialVersionUID = -2874204863438528905L;
@Override
protected Template handleRequest(HttpServletRequest request,
HttpServletResponse response, Context ctx) {
List<Order> orders = new ArrayList<Order>();
Order order = new Order();
order.setItem("Iphone4");
order.setType("智能手机");
order.setPrice("5900");
orders.add(order);
order = new Order();
order.setItem("PSP3003");
order.setType("多媒体产品");
order.setPrice("1750");
orders.add(order);
order = new Order();
order.setItem("Kinest");
order.setType("体感器");
order.setPrice("1150");
orders.add(order);
// 初始化Velocity引擎
VelocityEngine ve = new VelocityEngine();
InputStream is = this.getClass().getResourceAsStream("/velocity.properties");
Properties properties = new Properties();
try {
properties.load(is);
} catch (IOException e) {
e.printStackTrace();
}
ve.init(properties);
Template template = ve.getTemplate("list.vm");
// 为模版中的元素赋值
ctx.put("orders", orders);
return template;
}
}
velocity模版文件
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Velocity模版</title>
</head>
<body>
您好，亲爱的顾客，您的订单是：
<table>
<tr>
<th>物品</th>
<th>各类</th>
<th>价格</th>
</tr>
#foreach($order in $orders)
<tr>
<td>$order.item</td>
<td>$order.type</td>
<td>$order.getPrice()</td>
</tr>
#end
</table>
</body>
</html>
显示结果
webapp加载：
velocity.properties文件配置
resource.loader = webapp webapp.resource.loader.class = org.apache.velocity.tools.view.servlet.WebappLoader webapp.resource.loader.path = /WEB-INF/vm/ input.encoding = UTF-8 output.encoding = UTF-8
Servlet代码
/**
* cn.jbit.servlet.ListServlet
* 2014-5-8
* gyy
*/
package cn.jbit.servlet;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.velocity.Template;
import org.apache.velocity.context.Context;
import org.apache.velocity.tools.view.VelocityViewServlet;
import cn.jbit.entity.Order;
public class ListServlet extends VelocityViewServlet {
private static final long serialVersionUID = -2874204863438528905L;
@Override
protected Template handleRequest(HttpServletRequest request,
HttpServletResponse response, Context ctx) {
List<Order> orders = new ArrayList<Order>();
Order order = new Order();
order.setItem("Iphone4");
order.setType("智能手机");
order.setPrice("5900");
orders.add(order);
order = new Order();
order.setItem("PSP3003");
order.setType("多媒体产品");
order.setPrice("1750");
orders.add(order);
order = new Order();
order.setItem("Kinest");
order.setType("体感器");
order.setPrice("1150");
orders.add(order);
// 为模版中的元素赋值
ctx.put("orders", orders);
return getTemplate("list.vm");
}
}
web.xml部署文件配置
好了，结束了，希望对大家有用吧。
Velocity模版加载（classpath、webapp）
时间： 2024-11-12 03:32:07