《struts2权威指南》学习笔记之struts2+jsf+spring+sitemesh集成开发 |西安信息资源网|E书下载|电子书下载|信息发布

《struts2权威指南》学习笔记之struts2+jsf+spring+sitemesh集成开发 转帖

推荐人：WD

1.安装sitemesh插件

     与整合其他框架类似，struts2与sitemesh框架的整合也使用了插件方式进行管理。将struts2-sitemesh-plugin-2.0.6.jar文件复制到WEB-INF/lib下，为了整合sitemesh框架，必须在web.xml中配置sitemesh过滤器，让该核心过滤器来过滤所有的用户请求。但我们知道，struts2的所有值一旦访问该stack context或ValueStack后，里面对应的数值将会被清除掉，如果先使用了struts2的FilterDispather来过滤用户请求，则sitemesh的过滤器将无法取得Stack context或者ValueStack中的数据
    为了解决这个问题，struts2提供了ActionContextCleanUp类，在struts2的架构中，标准的过滤器一般以ActionContextCleanUp开始，后面跟着其他需要的过滤器，最后，由FilterDispatcher来处理请求，FilterDispatcher通常是将请求传递给ActionMapper
    ActionContextCleanUp的一个重要作用是整合sitemesh页面装饰器，它通知FilterDispatcher在正确的时间清除ActionContext中的请求数据，所以正确的排序如下：
     （1）ActionContextCleanUp过滤器
     （2）SiteMesh核心过滤器
     （3）FilterDispatcher过滤器

web.xml

<?xml version="1.0" encoding="GBK"?>
<web-app id="jsf" 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">

     <filter>
         <filter-name>struts-cleanup</filter-name>
         <filter-class>org.apache.struts2.dispatcher.ActionContextCleanUp</filter-class>
     </filter>
     <filter>
         <filter-name>sitemesh</filter-name>
         <filter-class>com.opensymphony.module.sitemesh.filter.PageFilter</filter-class>
     </filter>
     <filter>
         <filter-name>struts</filter-name>
         <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
     </filter>

     <filter-mapping>
         <filter-name>struts-cleanup</filter-name>
         <url-pattern>/*</url-pattern>
     </filter-mapping>
     <filter-mapping>
         <filter-name>sitemesh</filter-name>
         <url-pattern>/*</url-pattern>
     </filter-mapping>
     <filter-mapping>
         <filter-name>struts</filter-name>
         <url-pattern>/*</url-pattern>
     </filter-mapping>

     <listener>
         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
     </listener>

<listener>
         <listener-class>org.apache.myfaces.webapp.StartupServletContextListener</listener-class>
     </listener>

         
     <servlet>
         <servlet-name>faces</servlet-name>
         <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
         <load-on-startup>1</load-on-startup>
     </servlet>

<servlet-mapping>
         <servlet-name>faces</servlet-name>
         <url-pattern>*.action</url-pattern>
     </servlet-mapping>

</web-app>

spring配置文件

<?xml version="1.0" encoding="GBK"?>

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

</beans>

sitemesh装饰配置文件

<?xml version="1.0" encoding="GBK"?>

<decorators defaultdir="/decorators">
     
     <excludes>
         <pattern>/exclude.jsp</pattern>
         <pattern>/exclude/*</pattern>
     </excludes>

<decorator name="main" page="main.jsp">
         <pattern>/*</pattern>
     </decorator>

<decorator name="panel" page="panel.jsp"/>
</decorators>

装饰器decorators/main.jsp

<%...@ page contentType="text/html; charset=GBK"%>
<%...@ taglib uri="http://www.opensymphony.com/sitemesh/decorator" prefix="decorator"%>
<%...@ taglib uri="http://www.opensymphony.com/sitemesh/page" prefix="page"%>
<html>
     <head>
         <title><decorator:title default="SiteMesh的装饰器页"/></title>
         <link href="decorators/main.css" rel="stylesheet" type="text/css">
         <decorator:head/>
     </head>
     <body>
         <table width="100%" height="100%">
             <tr>
                 <td valign="top">
                     
                     <page:applyDecorator page="/book.html" name="panel" />
                     <page:applyDecorator page="/link.html" name="panel" />
                 </td>
                 <td width="100%">
                     <table width="100%" height="100%">
                         <tr>
                             <td id="pageTitle">
                                 <decorator:title/>
                             </td>
                         </tr>
                         <tr>
                             <td valign="top" height="100%">
                                 <decorator:body />
                             </td>
                         </tr>
                         <tr>
                             <td id="footer">
                                 <b>被包含的内容</b><br>
                                 SithMesh提供页面装饰支持
                             </td>
                         </tr>
                     </table>
                 </td>
             </tr>
         </table>
     </body>
</html>
装饰器decorators/panel.jsp

<%...@ page contentType="text/html; charset=GBK"%>
<%...@ taglib uri="http://www.opensymphony.com/sitemesh/decorator" prefix="decorator" %>
<p>
     <table width=250 border=0 cellpadding=0 cellspacing=0>
         <tr>
             <th class="panelTitle">
                 <decorator:title default="小面板页面" />
             </th>
         </tr>
         <tr>
             <td class="panelBody">
                 <decorator:body />
             </td>
         </tr>
     </table>
</p>

装饰器样式decorators/main.css

body, td, p {
font: normal x-small verdana, arial, helvetica, sans-serif;
}

.panelTitle {
     background-color: #003399;
     color:#eeeeee;
     font-weight: bold;
     border-color: #3366ff #000033 #000033 #3366ff;
     border-width: 1;
     border-style: solid;
     padding: 1;
}

.panelBody {
     background-color: #eeeeee;
     border-color: black;
     border-width: 0 1 1 1;
     border-style: solid;
     padding: 2;
}

#pageTitle {
     background-color: #003399;
     color:#eeeeee;
     font-weight: bold;
     font-size: large;
     border-color: #3366ff #000033 #000033 #3366ff;
     border-width: 1;
     border-style: solid;
     padding: 1;
     text-align: center;
}

#footer {
     background-color:#eeeeee;
     font-size: 9pt;
     text-align: center;
     color: black;
     border-color: #666666 #cccccc #cccccc #666666;
     border-width: 1;
     border-style: solid;
     padding: 1;
}

被装饰页面book.html

<html>
     <head>
         <title>作者图书</title>
     </head>
     <body>
         <center>
             Spring2.0宝典<br>
             轻量级J2EE企业应用实战<br>
             基于J2EE的Ajax宝典
         </center>
     </body>
</html>

被装饰页面link.html

<html>
     <head>
         <title>友情链接</title>
     </head>
     <body>
         <center>
             <a href="http://www.nit-pro.org">NIT-PRO考试中心</a><br>
             <a href="http://www.oneedu.cn">新东方IT培训中心</a><br>
             <a href="http://www.oneedu.cn">东方标准人才服务公司</a><br>
         </center>
     </body>
</html>

JSF功能页面list.jsp

<%...@ page language="java" contentType="text/html; charset=GBK"%>
<%...@ taglib prefix="f" uri="http://java.sun.com/jsf/core" %>
<%...@ taglib prefix="h" uri="http://java.sun.com/jsf/html" %>
<html>
     <head>
           <title>Struts2+MyFaces+Spring整合</title>
     </head>
     <body>
     <f:view>
       <h3>Struts2+MyFaces+Spring整合</h3>
       <h3>列出所有图书</h3>
       <h:dataTable value="#{action.allBook}" var="b" style="text-align:center;width:500px" border="1">
           <h:column>
               <f:facet name="header">
                   <h:outputText value="图书ID" />
               </f:facet>
               <h:outputLink value="edit.action">
                   <f:param name="editId" value="#{b.id}" />
                   <h:outputText value="#{b.id}" />
               </h:outputLink>
           </h:column>
         <h:column>
               <f:facet name="header">
                   <h:outputText value="图书名" />
               </f:facet>
               <h:outputText value="#{b.name}" />
           </h:column>
         <h:column>
               <f:facet name="header">
                   <h:outputText value="图书简介" />
               </f:facet>
               <h:outputText value="#{b.desc}" />
           </h:column>
       </h:dataTable>
       <p>
       <h:outputLink value="edit.action">
           <h:outputText value="新增图书"/>
       </h:outputLink>
       </p>
     </f:view>
     </body>
</html>

JSF功能页面edit.jsp

<%...@ page language="java" contentType="text/html; charset=GBK"%>
<%...@ taglib prefix="f" uri="http://java.sun.com/jsf/core" %>
<%...@ taglib prefix="h" uri="http://java.sun.com/jsf/html" %>
<html>
     <head>
           <title>Struts2+MyFaces+Spring整合</title>
     </head>
     <body>
     <f:view>
       <h3>Struts2+MyFaces+Spring整合</h3>
       <h3>修改/保存图书</h3>
       <h:form>
           <h:inputHidden value="#{action.editId}"/>
           <h:panelGrid columns="3">
               <h:outputText value="图书ID"/>
               <h:inputText id="id" size="5" value="#{action.currentBook.id}" required="true" />
               <h:message for="id" />
               <h:outputText value="图书名:"/>
               <h:inputText id="name" size="30" value="#{action.currentBook.name}" required="true">
                   <f:validateLength minimum="2" maximum="100" />
               </h:inputText>
               <h:message for="name" />
               <h:outputText value="图书描述：" />
               <h:inputText id="desc" size="30" value="#{action.currentBook.desc}" required="true">
                   <f:validateLength minimum="2" maximum="100" />
               </h:inputText>
               <h:message for="desc" />
           </h:panelGrid>
           <h:commandButton value="保存" action="#{action.save}" />
           <br/>
       </h:form>
     </f:view>
     </body>
</html>

struts.xml

<?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">

     <package name="jsf" extends="jsf-default">
         <interceptors>
             <interceptor-stack name="jsfFullStack">
                 <interceptor-ref name="params" />
                 <interceptor-ref name="basicStack"/>
                 <interceptor-ref name="jsfStack"/>
             </interceptor-stack>
         </interceptors>
         <default-interceptor-ref name="jsfFullStack"/>
     </package>

     <package name="lee" extends="jsf">
         <action name="list" class="lee.action.BookAction">
             <result name="success" type="jsf"/>
         </action>
         <action name="edit" class="lee.action.BookAction">
             <result name="success" type="jsf"/>
             <result name="list" type="redirect">list.action</result>
         </action>
     </package>

</struts>

BookService

package lee.service;

import java.util.*;
import lee.model.Book;

public class BookService
...{
private Set<Book> bookDb;

     public BookService()
     ...{
         bookDb = new HashSet<Book>();
         bookDb.add(new Book(1 , "Spring2.0宝典" , "全面介绍了Spring各个知识点"));
         bookDb.add(new Book(2 , "轻量级J2EE企业应用实战" , "介绍实际企业的J2EE开发过程"));
     }

     public Set<Book> getAllBook()
     ...{
         return bookDb;
     }

     public Book getBookById(int id)
     ...{
         for (Book b : bookDb)
         ...{
             if (b.getId() == id)
             ...{
                 return b;
             }
         }
         return null;
     }

     public void addBook(Book b)
     ...{
         bookDb.add(b);
     }
}

Book

package lee.model;

public class Book
...{
     private int id;
     private String name;
     private String desc;

     public Book()
     ...{
     }

     public Book(int id , String name ,String desc)
     ...{
         this.id = id;
         this.name = name;
         this.desc = desc;
     }

     public void setId(int id)
     ...{
         this.id = id;
     }
     public int getId()
     ...{
          return this.id;
     }

     public void setName(String name)
     ...{
         this.name = name;
     }
     public String getName()
     ...{
          return this.name;
     }

     public void setDesc(String desc)
     ...{
         this.desc = desc;
     }
     public String getDesc()
     ...{
          return this.desc;
     }

     public int hashCode()
     ...{
         return id;
     }
     public boolean equals(Object target)
     ...{
         if (target instanceof Book)
         ...{
             Book b = (Book)target;
             if (b.getId() == this.id)
             ...{
                 return true;
             }
         }
         return false;
     }
}

BookAction

package lee.action;

import com.opensymphony.xwork2.ActionSupport;

import java.util.*;
import lee.model.Book;
import lee.service.BookService;

public class BookAction extends ActionSupport
{
private Book currentBook;
private int editId;

     private BookService bs;
     public void setBs(BookService bs)
     {
         this.bs = bs;
     }

     public void setCurrentBook(Book currentBook)
     {
         this.currentBook = currentBook;
     }
     public Book getCurrentBook()
     {
         //如果editId请求参数不为空，则currentBook也不为空
         if (editId != 0)
         {
             this.currentBook = bs.getBookById(editId);
         }
         else if (currentBook == null)
         {
             currentBook = new Book();
         }
         return this.currentBook;
     }

     public void setEditId(int editId)
     {
         this.editId = editId;
     }
     public int getEditId()
     {
          return this.editId;
     }

     public List<Book> getAllBook()
     {
         List<Book> result = new ArrayList<Book>();
         for (Book b : bs.getAllBook())
         {
             result.add(b);
         }
         return result;
     }

     public String save()
     {
         bs.addBook(currentBook);
         return "list";
     }

}

struts.properties

struts.i18n.encoding=gb2312
struts.objectFactory.spring.autoWire=type

如果web应用是test.,则运行

http://localhost:8080/test/list.action 则会出现如下被装饰过的页面

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