velocity使用示例，velocity示例,自己做的一个关于velo
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velocity使用示例，velocity示例,自己做的一个关于velo
自己做的一个关于velocity的例子:
Velocity模板文件index.vm
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" ><html xmlns="http://www.w3.org/1999/xhtml"><head> <title>Velocity Demo</title> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <meta name="keywords" content="velocity,模板"> </head> <body > #set($name1="first!") Hello, $name1 <br> Hello, $name2 <br/> Hello, $name3 <br/> Hello, $name3 <hr> <table border='1' width='200' > <tr> <td> yy </td> </tr> #foreach ($iii in $theList) <tr> <td bgcolor="#eeeeee">$iii</td> </tr> #end </table> </body></html>
MyVelocityServlet.java
package com.velocity;import java.io.IOException;import java.io.FileNotFoundException;import java.io.StringWriter;import java.io.UnsupportedEncodingException;import java.util.Properties;import java.util.Vector;import javax.servlet.ServletConfig;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.servlet.VelocityServlet;import org.apache.velocity.app.Velocity;import org.apache.velocity.app.VelocityEngine;import org.apache.velocity.VelocityContext;@SuppressWarnings("deprecation")public class MyVelocityServlet extends VelocityServlet { protected Properties loadConfiguration(ServletConfig config) throws IOException, FileNotFoundException { VelocityEngine engine = new VelocityEngine(); Properties p = new Properties(); String path = config.getServletContext().getRealPath("/"); if (path == null) { path = "/"; } p.setProperty(Velocity.FILE_RESOURCE_LOADER_PATH, path); p.setProperty("runtime.log", path + "velocity.log"); try { engine.init(p); // 载入模板的路径path ,即上下文路径 } catch (Exception e) { e.printStackTrace(); } return p; } public Template handleRequest(HttpServletRequest request, HttpServletResponse response, Context ctx) { try { request.setCharacterEncoding("UTF8"); } catch (UnsupportedEncodingException e1) { e1.printStackTrace(); } response.setCharacterEncoding("UTF8"); Template template = null; Template template2 = null; try { /** * 主要代码 */ Velocity.init(); // VelocityContext context = new VelocityContext(); String p1 = "JAVA"; String p2 = "C++"; String p3 = "Ruby"; String p4 = "D"; Vector<string></string> personList = new Vector<string></string>(); personList.addElement(p1); personList.addElement(p2); personList.addElement(p3); personList.addElement(p4); /** * 将模板数据name, list 放置到上下文环境 context 中去 */ ctx.put("name2", " 这里是在后台赋值! "); ctx.put("name3", " 小齐! "); ctx.put("theList", personList); template = Velocity.getTemplate("/index.vm"); } catch (Exception e) { e.printStackTrace(); } // 以下一段代码主要是获得模板的HTML内容 在后台显示 try { template2 = Velocity.getTemplate("/index.vm"); VelocityContext context = new VelocityContext(); context.put("name2", "这里在后台第二次赋值！"); StringWriter writer = new StringWriter(); template2.merge(context, writer); System.out.println(writer.toString()); } catch (Exception e) { e.printStackTrace(); } return template; }}本例子是参照网上搜集的资料而形成的，现提出来供大家参考，谢谢
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