The use of the handlermapping of Spring Web MVC is-------simpleurlhandlermapping (there are three kinds of matching methods)

Use background:
First step >>>
Create a Controller:loginconstroller under the package Com.spring.web.controller
public class Logincontroller extends abstractcontroller{

Public Modelandview handlerequestinternal (HttpServletRequest request,
HttpServletResponse response) throws exception{

String username=request.getparameter ("UserName");
String pwd=request.getparameter ("pwd");

String msg= "";
Modelandview mav=new Modelandview ("Loginresult"); Note To create a loginresult.jsp page under/web-inf/jsp
if (!username.equals ("Liuxi")) {
Msg= "username does not exist!";
}else if (!pwd.equals ("8888")) {
Msg= "The password is incorrect!";

}else{
msg= "Congratulations on your login success!";
}


Mav.addobject ("msg", MSG);
return MAV;
}

}

Step Two >>>>
Configure Web.xml:
<?xml version= "1.0" encoding= "UTF-8"?>
<web-app version= "2.5"
Xmlns= "Http://java.sun.com/xml/ns/javaee"
Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"
Xsi:schemalocation= "Http://java.sun.com/xml/ns/javaee
Http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd ">


<servlet>
<servlet-name>sample</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

</servlet>

<servlet-mapping>
<servlet-name>sample</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>

<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

Step three >>>>
Configure Sample-servlet.xml:

<?xml version= "1.0" encoding= "UTF-8"?>
<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-2.0.xsd ">

<bean id= "Logincontroller" class= "Com.spring.web.controller.LoginController"/>


<bean id= "handlermapping" class= "org.springframework.web.servlet.handler.SimpleUrlHandlerMapping" >
<!--configuration Method A
<property name= "UrlMap" >
<map>
<entry key= "/user/login.do" value-ref= "Logincontroller"/>
</map>
</property>
-->
<!--configuration Method two
<property name= "Mappings" >
<bean class= "Org.springframework.beans.factory.config.PropertiesFactoryBean" >
<property name= "Location" >
<value>urlMap.properties</value> <!--urlmap.properties files should be placed in the Webroot directory at this time! -->
</property>
</bean>
</property>
-->
<!--configuration Method three-->
<property name= "Mappings" >
<props>
<prop key= "/user/login.do" >loginController</prop>
</props>
</property>
</bean>

<bean class= "Org.springframework.web.servlet.view.InternalResourceViewResolver" >
<property name= "prefix" ><value>/WEB-INF/jsp/</value></property>
<property name= "suffix" ><value>.jsp</value></property>
<property name= "Viewclass" >
<value>
Org.springframework.web.servlet.view.JstlView
</value>
</property>
</bean>


</beans>