SimpleUrlHandlerMapping是Spring MVC中适用性最强的Handler Mapping类，允许明确指定URL模式和Handler的映射关系。有两种方式声明SimpleUrlHandlerMapping。

prop key

key是URL模式，属性值是Handler的ID或者名字。

<beans ...>
 
    <bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
       <property name="mappings">
        <props>
           <prop key="/welcome.htm">welcomeController</prop>
           <prop key="/*/welcome.htm">welcomeController</prop>
           <prop key="/helloGuest.htm">helloGuestController</prop>
         </props>
       </property>
    </bean>
    
    <bean id="welcomeController" 
        class="com.mkyong.common.controller.WelcomeController" />
        
    <bean id="helloGuestController" 
        class="com.mkyong.common.controller.HelloGuestController" />
        
</beans>

value

等号左边是URL模式，右边是Handler的ID或者名字。

<beans ...>
    
    <bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
       <property name="mappings">
        <value>
           /welcome.htm=welcomeController
           /*/welcome.htm=welcomeController
           /helloGuest.htm=helloGuestController
        </value>
       </property>
    </bean>
    
    <bean id="welcomeController" 
        class="com.mkyong.common.controller.WelcomeController" />
        
    <bean id="helloGuestController" 
        class="com.mkyong.common.controller.HelloGuestController" />
        
</beans>