Struts2+Spring2.5+Hibernate3.2实例教程(2-2)V0.1

2．集成Spring和Hibernate
1)  Struts2和Spring2集成
1．1）将D:\JavaTools\struts-2.1.2\lib\下的
struts2-spring-plugin-2.1.2.jar复制到
D:\Project\Bitrac\WebRoot\WEB-INF\lib\
1．2）在web.xml文件中加入Spring配置：
<!--默认加载/WEB-INF 目录下的applicationContext.xml -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
加入后完整的文件内容如下：

1. <? xml version = " 1.0 " encoding = " UTF-8 " ?>
2. < web-app   id = " bitrac " 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 " >
3.     < display-name > Bitrac Blog </ display-name >
4.    
5.     < filter >
6.         < filter-name > Struts2 </ filter-name >
7.         < filter-class >
8.             org.apache.struts2.dispatcher.FilterDispatcher
9.         </ filter-class >
10.     </ filter >
11.  
12.     < filter-mapping >
13.         < filter-name > Struts2 </ filter-name >
14.         < url-pattern > /* </ url-pattern >
15.     </ filter-mapping >
16.    
17.     <!--默认加载/WEB-INF 目录下的applicationContext.xml -->
18.     < listener >
19.         < listener-class > org.springframework.web.context.ContextLoaderListener </ listener-class >
20.     </ listener >
21.    
22.     < welcome-file-list >
23.         < welcome-file > index.jsp </ welcome-file >
24.     </ welcome-file-list >
25.  
26. </ web-app >

    1.3)新建Struts配置文件Bitrac\src\default.xml，内容如下：

1. <? xml version = " 1.0 " encoding = " UTF-8 " ?>
2. < ! DOCTYPE   struts PUBLIC
3.     " -//Apache Software Foundation//DTD Struts Configuration 2.0//EN "
4.     " http://struts.apache.org/dtds/struts-2.0.dtd " >
5.    
6. < struts >
7.     < package   name = " default " extends = " struts-default " >
8.         < action   name = " admincp " >
9.             < result > /admin/login.jsp </ result >
10.         </ action >      
11.     </ package >
12. </ struts >

这个配置文件将用来存放前台的action配置
    1.4）新建Struts配置文件Bitrac\src\admin.xml，内容如下：

1. <? xml version = " 1.0 " encoding = " UTF-8 " ?>
2. < ! DOCTYPE   struts PUBLIC
3.     " -//Apache Software Foundation//DTD Struts Configuration 2.0//EN "
4.     " http://struts.apache.org/dtds/struts-2.0.dtd " >
5.    
6. < struts >
7.     < package   name = " admin " extends = " struts-default " namespace = " /admin " >
8.         < action   name = " login " class = " adminAction " method = " login " >
9.             < result   name = " success " > /admin/index.jsp </ result >
10.             < result   name = " input " > /admin/login.jsp </ result >
11.         </ action >      
12.     </ package >
13. </ struts >

这个文件将用来存放后台管理界面的Action配置
    1.5）修改Bitrac\src\struts.xml，内容如下：

1. <? xml version = " 1.0 " encoding = " UTF-8 " ?>
2. < ! DOCTYPE   struts PUBLIC
3.     " -//Apache Software Foundation//DTD Struts Configuration 2.0//EN "
4.     " http://struts.apache.org/dtds/struts-2.0.dtd " >
5.    
6. < struts >
7.     < constant   name = " struts.devMode " value = " true " />
8.     < constant   name = " struts.configuration.xml.reload " value = " true " />
9.     < constant   name = " struts.action.extension " value = " jspx " />
10.    
11.     < include   file = " default.xml " />
12.     < include   file = " admin.xml " />
13. </ struts >

这里配置了一些全局常量，struts.action.extentsion是访问action时的后缀，通常用的有action或者do，我的习惯是用jspx，例如/admin/login.jspx，将调用admin.xml里定义的login action。
   1．6）新建Spring配置文件

1. <? xml version = " 1.0 " encoding = " UTF-8 " ?>
2. < beans   xmlns = " http://www.springframework.org/schema/beans "
3.     xmlns:xsi = " http://www.w3.org/2001/XMLSchema-instance "
4.     xmlns:aop = " http://www.springframework.org/schema/aop "
5.     xmlns:tx = " http://www.springframework.org/schema/tx "
6.     xsi:schemaLocation = "
7.     http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
8.     http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
9.     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd " >
10.  
11.     < bean   name = " adminAction " class = " com.albertsong.bitrac.action.AdminAction " />
12. </ beans >

注 意这里的bean name是adminAction，再看Bitrac\src\admin.xml里的class="adminAction"，Spring和 Struts的结合点就在这里，后台处理这一结合的是struts2-spring-plugin-2.1.2.jar。如果不使用spring，在 admin.xml中将是class="com.albertsong.bitrac.action.AdminAction"。