Heim >Web-Frontend >HTML-Tutorial >Velocity练习：使用vm模板生成最简单的html页面_html/css_WEB-ITnose
Velocity练习：使用vm模板生成最简单的html页面_html/css_WEB-ITnose
- WBOYOriginal
- 2016-06-21 08:48:532521Durchsuche
这几天要用到Velocity模板引擎去做一些页面，所以学习了下这个工具。我的jdk版本为 1.8.0_25
需要做的准备工作有：
1、建立一个Java工程，需要引用Velocity相关的jar包，这些jar包可从apache.org下载到最新版本。 下载地址在：http://velocity.apache.org/download.cgi 。我下载的文件是velocity-tools-2.0.zip，将这些文件导入到项目中，就可以使用Velocity进行编码了。
2、安装Eclipse上的Velocity插件Veloedit。因为googlecode被gfw墙掉了，没有条件的朋友们可以安装网上下载到的离线安装版。这里还有一个需要注意，我的Eclipse版本为 Luna Service Release 1 (4.4.1)，这个版本必须要先利用Eclipse自带的update功能，下载“Elipse Tests, Examples, and Extras”。
建立一个JavaProject，取名VelocityTool，里面新建两个java文件。
其中，VelocityHelper.java包含一个Velocity模板转换工具类，代码如下：
import java.io.File;import java.io.FileWriter;import org.apache.velocity.Template;import org.apache.velocity.VelocityContext;import org.apache.velocity.app.Velocity;import org.apache.velocity.app.VelocityEngine;/** * * @文件名称 VelocityHelper.java * @文件作者 Tsybius2014 * @创建时间 2016年5月10日 下午2:14:01 */public class VelocityHelper { /** * * @param inputVmFilePath * @param outputHtmlFilePath * @param context * @throws Exception */ public static void generateHtml(String inputVmFilePath, String outputHtmlFilePath, VelocityContext context) throws Exception { try { Velocity.init(); VelocityEngine engine = new VelocityEngine(); Template template = engine.getTemplate(inputVmFilePath, "gbk"); File outputFile = new File(outputHtmlFilePath); FileWriter writer = new FileWriter(outputFile); template.merge(context, writer); writer.close(); } catch (Exception ex) { throw ex; } }} VelocityTool.java中有main函数，代码如下：
import java.util.HashMap;import java.util.Vector;import org.apache.velocity.VelocityContext;/** * * @文件名称 VelocityTool.java * @文件作者 Tsybius2014 * @创建时间 2016年5月10日 上午10:03:59 */public class VelocityTool { public static void main(String[] args) { try { VelocityContext context= new VelocityContext(); context.put("name", "Kim Jung-un"); context.put("gender", "Male"); context.put("email", "XXX@XXX.gov"); context.put("job", "Chairman of the WPK"); context.put("company", "Workers' Party Of Korea (WPK)"); context.put("address", "XXXXXXXXX, Pyongyang, North Korea"); context.put("portraitPath", "file:///C:/Users/Tsybius/Desktop/kju.jpg"); HashMap<String, String> hashMapContact = new HashMap<String, String>(); hashMapContact.put("Tel", "XXX-XXXXXXXX"); hashMapContact.put("Fax", "XXX-XXXXXXXX"); hashMapContact.put("Mobile", "XXX-XXXX-XXXX"); context.put("contactItems", hashMapContact); Vector<String> vectorRemark = new Vector<String>(); vectorRemark.add("Kim Jong-un is the Chairman of the Workers' Party of Korea and supreme leader of the Democratic People's Republic of Korea (DPRK), commonly referred to as North Korea."); vectorRemark.add("Kim is the son of Kim Jong-il (1941–2011) and the grandson of Kim Il-sung (1912–1994)."); vectorRemark.add("Kim obtained two degrees, one in Physics at Kim Il-sung University, and another as an Army officer at the Kim Il-sung Military University."); vectorRemark.add("Kim was named the World's 46th Most Powerful Person by the Forbes list of The World's Most Powerful People in 2013"); context.put("remarks", vectorRemark); VelocityHelper.generateHtml( "velocity_test.vm", "C:\\Users\\Tsybius\\Desktop\\output.html", context); System.out.println("生成完毕"); } catch (Exception ex) { ex.printStackTrace(); } }} 模板velocity_test.vm是一个存储着人物通讯录的模板，代码如下：
#set($docDesc="VelocityTest")#set($docAuthor="Tsybius2014")#set($docDateTime="2016-05-10 14:29:04")#set($docRemark="none")<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"> <meta http-equiv="Content-Type" content="text/html;charset=utf-8" /> <style type="text/css"> </style> <head> <title>$!{name}</title> </head> <body> <table width="100%"> <tr> <!-- Title --> <td align="center"><b>Address Book - $!{name}</b></td> </tr> <tr> <!-- BaseInfo --> <td> <table width="100%" height="100%"> <tr> <td width="10%">Name:</td> <td width="30%">$!{name}</td> <td width="10%">Gender:</td> <td width="30%">$!{gender}</td> <td width="20%" rowspan="4"> <img src="$!{portraitPath}" style="max-width:90%" style="max-width:90%"/ alt="Velocity练习：使用vm模板生成最简单的html页面_html/css_WEB-ITnose" > </td> </tr> <tr> <td width="10%">E-mail:</td> <td width="30%">$!{email}</td> <td width="10%">Job:</td> <td width="30%">$!{job}</td> </tr> <tr> <td width="10%">Company:</td> <td width="70%" colspan="3">$!{company}</td> </tr> <tr> <td width="10%">Address:</td> <td width="70%" colspan="3">$!{address}</td> </tr> </table> </td> </tr> <tr> <!-- Contact --> <td> <table width="100%" height="100%" > <tr> <td width="10%" align="left" valign="top"> Contact: </td> <td> <table width="100%" height="100%" > <tr> <th></th> <th align="left">Contact Type</th> <th align="left">Contact Code</th> <th></th> </tr> #foreach($contactItem in $contactItems.entrySet()) <tr> <td align="left" width="5%">$velocityCount</td> <td align="left" width="20%">$contactItem.key</td> <td align="left" width="30%">$contactItem.value</td> <td></td> </tr> #end </table> </td> </tr> </table> </td> </tr> <tr> <!-- Remarks--> <td> <table width="100%" height="100%" > <tr> <td width="10%" align="left" valign="top"> Remark: </td> <td> <table width="100%" height="100%" > #foreach($remark in $remarks) <tr> <td>[$velocityCount] $remark</td> </tr> #end </table> </td> </tr> </table> </td> </tr> </table> </body></html> 以JavaApplication的方式运行本工程后，生成的HTML页面output.html如下：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"> <meta http-equiv="Content-Type" content="text/html;charset=utf-8" /> <style type="text/css"> </style> <head> <title>Kim Jung-un</title> </head> <body> <table width="100%"> <tr> <!-- Title --> <td align="center"><b>Address Book - Kim Jung-un</b></td> </tr> <tr> <!-- BaseInfo --> <td> <table width="100%" height="100%"> <tr> <td width="10%">Name:</td> <td width="30%">Kim Jung-un</td> <td width="10%">Gender:</td> <td width="30%">Male</td> <td width="20%" rowspan="4"> <img src="file:///C:/Users/Tsybius/Desktop/kju.jpg" style="max-width:90%" style="max-width:90%"/ alt="Velocity练习：使用vm模板生成最简单的html页面_html/css_WEB-ITnose" > </td> </tr> <tr> <td width="10%">E-mail:</td> <td width="30%">kim001@northkorea.gov</td> <td width="10%">Job:</td> <td width="30%">Chairman of the WPK</td> </tr> <tr> <td width="10%">Company:</td> <td width="70%" colspan="3">Workers' Party Of Korea (WPK)</td> </tr> <tr> <td width="10%">Address:</td> <td width="70%" colspan="3">The Dark Side Laboratory, Pyongyang, North Korea</td> </tr> </table> </td> </tr> <tr> <!-- Contact --> <td> <table width="100%" height="100%" > <tr> <td width="10%" align="left" valign="top"> Contact: </td> <td> <table width="100%" height="100%" > <tr> <th></th> <th align="left">Contact Type</th> <th align="left">Contact Code</th> <th></th> </tr> <tr> <td align="left" width="5%">1</td> <td align="left" width="20%">Tel</td> <td align="left" width="30%">XXX-XXXXXXXX</td> <td></td> </tr> <tr> <td align="left" width="5%">2</td> <td align="left" width="20%">Fax</td> <td align="left" width="30%">XXX-XXXXXXXX</td> <td></td> </tr> <tr> <td align="left" width="5%">3</td> <td align="left" width="20%">Mobile</td> <td align="left" width="30%">XXX-XXXX-XXXX</td> <td></td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <!-- Remarks--> <td> <table width="100%" height="100%" > <tr> <td width="10%" align="left" valign="top"> Remark: </td> <td> <table width="100%" height="100%" > <tr> <td>[1] Kim Jong-un is the Chairman of the Workers' Party of Korea and supreme leader of the Democratic People's Republic of Korea (DPRK), commonly referred to as North Korea.</td> </tr> <tr> <td>[2] Kim is the son of Kim Jong-il (1941–2011) and the grandson of Kim Il-sung (1912–1994).</td> </tr> <tr> <td>[3] Kim obtained two degrees, one in Physics at Kim Il-sung University, and another as an Army officer at the Kim Il-sung Military University.</td> </tr> <tr> <td>[4] Kim was named the World's 46th Most Powerful Person by the Forbes list of The World's Most Powerful People in 2013</td> </tr> </table> </td> </tr> </table> </td> </tr> </table> </body></html>
使用 Firefox 46.0.1 打开此页面后效果图如下：
（部分内容摘自对应人物的维基百科页面）
END
Stellungnahme：
Der Inhalt dieses Artikels wird freiwillig von Internetnutzern beigesteuert und das Urheberrecht liegt beim ursprünglichen Autor. Diese Website übernimmt keine entsprechende rechtliche Verantwortung. Wenn Sie Inhalte finden, bei denen der Verdacht eines Plagiats oder einer Rechtsverletzung besteht, wenden Sie sich bitte an admin@php.cn
Vorheriger Artikel：核心动画(Core Animation)_html/css_WEB-ITnoseNächster Artikel：laravel blade模板介绍_html/css_WEB-ITnose