<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd">

<!--
  - DispatcherServlet application context for the Countries web tier.
  -->
<beans>

 <!-- ========================= MAPPING DEFINITIONS ========================= -->

 <!--
  - Explicit view mappings in bundle instead of default InternalResourceViewResolver.
   - Fetches the view mappings from localized "views_xx" classpath files, i.e.
   - "/WEB-INF/classes/views-countries.properties" or "/WEB-INF/classes/views-countries_fr.properties".
   -
   - Symbolic view names returned by controllers will be resolved in the respective
   - properties file, allowing for arbitrary mappings between names and resources.
   -
   - We use the "defaultParentView" property. All views defined will by default inherit
  - the properties defined in the "modelView" view.
   -->
 <bean id="viewResolver" class="org.springframework.web.servlet.view.ResourceBundleViewResolver">
  <property name="basename" value="views-countries"/>
  <property name="defaultParentView" value="modelView"/>
 </bean>

 <!--
  - We specify here that Locale and theme are stored in cookies.
   - They could be stored in a Session. Default resolvers don't allow changing them on the fly.
  -->
 <bean id="localeResolver" class="org.springframework.web.servlet.i18n.CookieLocaleResolver"/>

 <bean id="themeResolver" class="org.springframework.web.servlet.theme.CookieThemeResolver">
  <property name="defaultThemeName" value="spring"/>
 </bean>

 <!--
        路径映射
  - Explicit URL handler mapping instead of default BeanNameUrlHandlerMapping.
  -->
 <bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
  <property name="interceptors">
   <list>
    <ref bean="localeChangeInterceptor"/>
    <ref bean="themeChangeInterceptor"/>
   </list>
  </property>
  <property name="mappings">
   <props><--  当请求发送过来时，自动交给相应的控制器，让控制器来处理相应的逻辑和渲染相应的视图  -->
    <prop key="/home.htm">countriesController</prop>
    <prop key="/config.htm">countriesController</prop>
    <prop key="/copy.htm">countriesController</prop>
    <prop key="/main/home.htm">countriesController</prop>
    <prop key="/main/detail.htm">countriesController</prop>
    <prop key="/main/countries.xls">countriesController</prop>
    <prop key="/main/countries.pdf">countriesController</prop>
    <prop key="/notfound.htm">errorsController</prop>
   </props>
  </property>
 </bean>

 <!-- ========================= CONTROLLER DEFINITIONS ========================= -->

 <!--
  - Interceptors will pre-handle any request in this servlet, no matter which controller
  - is mapped for a request.
  -
  - We use two built-in interceptors to detect user locale or theme change requests.
  - The third interceptor is specific to this Demo. It allows views to easily be aware
  - about the configuration detected. Precisely to know if a copy data to database can be
  - proposed to the user.
 -->
 <bean id="localeChangeInterceptor" class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor"/>

 <bean id="themeChangeInterceptor" class="org.springframework.web.servlet.theme.ThemeChangeInterceptor"/>

 <!-- General use multi-action controller for errors -->
 <bean id="errorsController" class="org.springframework.samples.countries.web.ErrorsController">
  <property name="methodNameResolver">
   <bean class="org.springframework.web.servlet.mvc.multiaction.PropertiesMethodNameResolver">
    <property name="mappings">
     <props>
      <prop key="/notfound.htm">handleHttp404</prop>
     </props>
    </property>
   </bean>
  </property>
 </bean>

 <!-- Application specific multi-action controller    由于好多页面调用同一个控制器，因此要区分不同的页面，以调用继承multi-action 的不同的方法
         而这个任务就交给MethodNameResulver来解决-->
 <bean id="countriesController" class="org.springframework.samples.countries.web.CountriesController">
  <property name="methodNameResolver">
   <bean class="org.springframework.web.servlet.mvc.multiaction.PropertiesMethodNameResolver">
    <property name="mappings">
     <props>
      <prop key="/home.htm">handleHome</prop>
      <prop key="/config.htm">handleConfig</prop>
      <prop key="/copy.htm">handleCopy</prop>
      <prop key="/main/home.htm">handleMain</prop>
      <prop key="/main/detail.htm">handleDetail</prop>
      <prop key="/main/countries.xls">handleExcel</prop>
      <prop key="/main/countries.pdf">handlePdf</prop>
     </props>
    </property>
   </bean>
  </property>
  <property name="countryService" ref="countryService"/>
 </bean>

</beans>