struts2+freemarker 生成静态页面

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踏行天下 2022-08-05 10:02:04 博主文章分类：SSH ©著作权

文章标签 freemarker struts encoding webapp action 文章分类 虚拟化云计算

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struts2+freemarker 生成静态页面

1.创建项目

2.导入struts2的相关jar文件

3.在web.xml中配置如下：

?xml version=
 "1.0"
 encoding=
 "UTF-8"
 ?>
 
 <
 web-app id=
 "WebApp_ID"
 version=
 "2.4"
  xmlns=
 "http://java.sun.com/xml/ns/j2ee"
  xmlns:xsi=
 "http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation=
 "http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
 >
 
  <
 display-name>MyFreemark<
 /display-name>
 
   <
 filter>
 
         <
 filter-name>struts<
 /filter-name>
 
         <
 filter-class>org.apache.struts2.dispatcher.FilterDispatcher<
 /filter-class>        
 
     <
 /filter>
 
     <
 filter-mapping>
 
         <
 filter-name>struts<
 /filter-name>
 
         <
 url-pattern>/*<
 /url-pattern>
 
     <
 /filter-mapping>
 
  <
 welcome-file-list>
 
   <
 welcome-file>index.jsp<
 /welcome-file>  
 
  <
 /welcome-file-list>
 
 <
 /web-app>

4.创建struts.xml文件，且内容如下：

?xml version=
 "1.0"
 encoding=
 "GBK"
 ?>
 
 <
 !DOCTYPE struts PUBLIC
  
 "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
 
  
 "http://struts.apache.org/dtds/struts-2.0.dtd"
 >
 
 <
 struts>
 
  
 <!--- Add packages here -->
 
  <
 constant name=
 "struts.devMode"
  value=
 "true"
  />
 
  <
 constant name=
 "struts.i18n.encoding"
  value=
 "GBK"
  />
 
  <
 package name=
 "default"
  namespace=
 "/"
  extends=
 "struts-default"
 >
 
   <
 action name=
 "list"
  class=
 "com.zsw.action.ListAction"
 >
 
    <
 result type=
 "redirect"
 >/${msg}<
 /result>
 
   <
 /action>
 
  <
 /package>
 
 <
 /struts>

5.创建CreateHtml.java用来生成静态页面

package com.zsw.util;
 
import java.io.BufferedWriter;
 
import java.io.File;
 
import java.io.FileOutputStream;
 
import java.io.IOException;
 
import java.io.OutputStreamWriter;
 
import java.io.Writer;
 
import java.util.Locale;
 
import java.util.Map;
 
import org.apache.struts2.ServletActionContext;
 
import freemarker.template.Configuration;
 
import freemarker.template.Template;
 
import freemarker.template.TemplateException;
 
public 
 class CreateHtml {
 
  
 /**
   * 
   * @param ftl  模板文件
   * @param htmlName html文件名称
   * @param map    map保存数据
   * @param relaPath  //在这里没有用到
   * @throws IOException
   * @throws TemplateException
   */
 
  
 public 
 void init(
 String ftl, 
 String htmlName, Map map, 
 String relaPath) 
 throws IOException, TemplateException {
 
   
 
   
 
   
 //创建Configuration对象
 
   Configuration cfg = 
 new Configuration();
 
   cfg.setServletContextForTemplateLoading(ServletActionContext.getServletContext(), 
 "/");
 
   cfg.setEncoding(Locale.getDefault(), 
 "gbk");
 
   
 
   
 //创建Template对象
 
   Template template = cfg.getTemplate(ftl);
 
   template.setEncoding(
 "gbk");
 
   
 
   
 //生成静态页面
 
   
 String path = ServletActionContext.getServletContext().getRealPath(
 "/");
 
   File fileName = 
 new File(path + htmlName);
 
   Writer out = 
 new BufferedWriter(
 new OutputStreamWriter(
 new FileOutputStream(fileName), 
 "gbk"));
 
   template.process(map, out);
 
   out.flush();
 
   out.close();
 
   
 
  }

6.创建Action文件ListAction.java,如下：

package com.zsw.action;
 
import java.io.IOException;
 
import java.util.ArrayList;
 
import java.util.HashMap;
 
import java.util.List;
 
import java.util.Map;
 
import com.opensymphony.xwork2.ActionSupport;
 
import com.zsw.util.CreateHtml;
 
import com.zsw.vo.Person;
 
import freemarker.template.TemplateException;
 
public 
 class ListAction 
 extends ActionSupport {
 
  
 private 
 String msg; 
 
  
 public 
 String getMsg() {
 
   
 return msg;
 
  }
 
  
 public 
 void setMsg(
 String msg) {
 
   
 this.msg = msg;
 
  }
 
  
 
  
 public 
 String execute() {
 
   CreateHtml createHtml = 
 new CreateHtml();
 
   List<Person> persons = 
 new ArrayList<Person>();
 
   
 for (
 int i = 0; i < 5; i++) {
 
    Person p = 
 new Person();
 
    p.setId(i);
 
    p.setName(
 "a" + 
 "1");
 
    p.setAge(
 "5");
 
    p.setSex(
 "man");
 
    persons.add(p);
 
   }
 
   
 
   Map<
 String, List<Person>> map = 
 new HashMap<
 String, List<Person>>();
 
   map.put(
 "personlist", persons);
 
   
 String htmlName = 
 "personlist.html";
 
   
 String ftl = 
 "person.ftl";
 
   
 String relaPath = 
 "index.jsp";
 
   
 
   
 try {
 
    createHtml.init(ftl, htmlName, map, relaPath);
 
   } 
 catch (IOException e) {
 
    e.printStackTrace();
 
   } 
 catch (TemplateException e) {
 
    e.printStackTrace();
 
   }  
 
   
 this.msg = htmlName;
 
   
 return SUCCESS;
 
  }
 
 }

7.创建模板文件person.ftl

table style=
 "text-align:center;FONT-SIZE: 11pt; WIDTH: 600px; FONT-FAMILY: 宋体; BORDER-COLLAPSE: collapse"
  borderColor=#3399ff cellSpacing=0 cellPadding=0 align=center border=1>   
 
     <
 tr>   
 
         <
 td><
 b>编号<
 /b><
 /td>   
 
         <
 td><
 b>用户名<
 /b><
 /td>   
 
         <
 td><
 b>密码<
 /b><
 /td>   
 
         <
 td><
 b>性别<
 /b><
 /td>   
 
         <
 td><
 b>年龄<
 /b><
 /td>   
 
     <
 /tr>
 
     <
 #list personlist as person>   
 
     <
 tr>   
 
         <
 td>${person.id}<
 /td>   
 
         <
 td>${person.name}<
 /td>
 
         <
 td>${person.sex}<
 /td>   
 
         <
 td>${person.age}<
 /td>   
 
     <
 /tr>
 
  <
 /#list>