velocity生成静态页面代码

时间：2024-04-12 11:03:36

首先需要必备的jar包：

velocity生成静态页面代码

web.xml

  <!-- load velocity property -->

  <servlet>

       <servlet-name>velocity</servlet-name>

       <servlet-class>org.apache.velocity.tools.view.servlet.VelocityLayoutServlet</servlet-class>

       <init-param>

           <param-name>org.apache.velocity.properties</param-name>

           <param-value>/WEB-INF/velocity.properties</param-value>

       </init-param>

  </servlet>

  <servlet-mapping>

      <servlet-name>velocity</servlet-name>

      <url-pattern>*.vm</url-pattern>

  </servlet-mapping>
velocity.properties
input.encoding=utf-8

output.encoding=utf-8

WebRoot.resource.loader.class = org.apache.velocity.tools.view.servlet.WebappLoader

webapp.resource.loader.path=/WEB-INF/vm/

后台调用：

　　　　　　String realpath = request.getRealPath("/");

            //模板路径

            String urlVm = "/WEB-INF/vm/test.vm"; 

            //生成的html的路径，在webroot的html文件夹下面

            String urlHtml = realpath+"/html/test.htm";

            //设置模板中的元素

            VelocityContext  context = new VelocityContext();

            context.put("title", "hello word ");

            CreateHtml.createHtml(realpath,urlVm,urlHtml,context);    
CreateHtml.java 

package com.velocity;

import java.io.PrintWriter;

import java.util.Properties;

import org.apache.velocity.Template;

import org.apache.velocity.VelocityContext;

import org.apache.velocity.app.Velocity;

public class CreateHtml {

    public static void createHtml(String realpath, String urlVm,

            String urlHtml, VelocityContext context) {

        //加载路径

        Properties  prop = new Properties();

        prop.setProperty(Velocity.FILE_RESOURCE_LOADER_PATH, realpath);

        try {

            Velocity.init(prop);

            //初始化vm模板

            Template  template = new Template();

            template = Velocity.getTemplate(urlVm, "utf-8");

            //生成html页面

            PrintWriter  writer = new PrintWriter(urlHtml);

            template.merge(context, writer);

            //切记关闭流

            writer.close();

        } catch (Exception e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

    }

}

这样就在服务器下生成了静态页面，页面就直接访问你生成的页面，例如：http://localhost:8080/html/test.htm

 

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