?<!-- ========================= 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>

?<!--
??????? 路徑映射
? - 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><--? 當請求發(fā)送過來時，自動交給相應的控制器，讓控制器來處理相應的邏輯和渲染相應的視圖? -->
????<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??? 由于好多頁面調用同一個控制器，因此要區(qū)分不同的頁面，以調用繼承multi-action 的不同的方法
???????? 而這個任務就交給MethodNameResulver來解決-->
?<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>