《struts2权威指南》学习笔记之struts2整合jsf

1.安装jsf插件

   为了在struts2应用中使用JSF组件（实际上就是MyFaces组件，因为Myfaces是jsf的一个实现，必须将myfaces的lib路径下的jar文件都复制到web应用的WEB-INF/lib下）

2.将struts2框架下的struts2-jsf-plugin-2.06.jar复制到WEB-INF/lib下

3.修改web.xml文件，增加MYFaces的支持

web.xml

 

<? xml version="1.0" encoding="UTF-8" ?>
< 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 </ filter-name >
         < filter-class > org.apache.struts2.dispatcher.FilterDispatcher </ filter-class >
     </ filter >

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

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

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

     <!--  JavaServer Faces Servlet Configuration, not used directly  -->
     < servlet >
         < servlet-name > faces </ servlet-name >
         < servlet-class > javax.faces.webapp.FacesServlet </ servlet-class >
         < load-on-startup > 1 </ load-on-startup >
     </ servlet >

     <!--  JavaServer Faces Servlet Mapping, not called directly  -->
         < servlet-mapping >
         < servlet-name > faces </ servlet-name >
         < url-pattern > *.action </ url-pattern >
     </ servlet-mapping >
</ web-app >

 

applicationContext.xml

 

<? xml version="1.0" encoding="GBK" ?>
<!--  指定Spring配置文件的Schema信息  -->
< 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" >

     < bean  id ="bs"  class ="service.BookService" />

</ beans >

我们在spring配置文件中没有定义action的bean,所以，我们采用自动装配的方式将该业务逻辑注入到action实例中，为了让struts2使用spring框架，我们需要加入struts2-spring-plugin-2.0.6.jar到WEB-INF/lib中

并在struts.properties做如下定义

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

 

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" >

< struts >
     < constant  name ="struts.custom.i18n.resources"  value ="messageResource" />
     < constant  name ="struts.i18n.encoding"  value ="GBK" />
      
     < 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 ="action.BookAction" >
             < result  name ="success"  type ="jsf" />
         </ action >
         < action  name ="edit"  class ="action.BookAction" >
             < result  name ="success"  type ="jsf" />
             < result  name ="list"  type ="redirect" > list.action </ result >
         </ action >
     </ package >

</ struts >

 

BookSevice

 

package  service;

import  java.util.HashSet;
import  java.util.Set;

import  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  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  action;

import  java.util.ArrayList;
import  java.util.List;

import  model.Book;
import  service.BookService;

import  com.opensymphony.xwork2.ActionSupport;

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";
    }

}

 

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 >

 

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 >

 

如果context为test,则运行哦哪个http://localhost:8080/test/list.action进行测试，不能直接运行list.jsp