Как URL-адрес работает в Spring Web-потоке?

Ниже приведен адрес моего проекта. http://localhost:8080/springwebflow/loginFlow;jsessionid=k7338gzuvyc2sk36axkzhe9r?execution=e1s1

Как работает путь springwebflow/loginFlow? и с этим путем как мой display_login.jsp приходит?

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app
<?xml version="1.0" encoding="UTF-8" ?>

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:context="http://www.springframework.org/schema/context"

    xsi:schemaLocation="http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
    http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-3.0.xsd">

    <mvc:annotation-driven />
    <context:component-scan base-package="com.studytrails.tutorials.springwebflow" />

    <!--Define FlowHandlerMapping to tell DispatcherServlet (in web.xml)
          to send flow requests to Spring Web Flow -->
    <bean class="org.springframework.webflow.mvc.servlet.FlowHandlerMapping">
        <property name="flowRegistry" ref="loginFlowRegistry" />
    </bean>

    <!-- Define FlowHandlerAdapter to handle Spring Web Flow request call.
            This is the Controller class in Spring Web Flow -->
    <bean class="org.springframework.webflow.mvc.servlet.FlowHandlerAdapter">
        <property name="flowExecutor" ref="loginFlowExecutor" />
    </bean>

</beans>
3.dtd" >

<web-app>
  <display-name>Spring Web Flow</display-name>

  <servlet>
        <servlet-name>login</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>
                /WEB-INF/config/login-servlet-config.xml
                /WEB-INF/config/login-webflow-config.xml
                /WEB-INF/config/spring-config.xml
            </param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>login</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

</web-app>

веб.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" xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:context="http://www.springframework.org/schema/context"

    xsi:schemaLocation="http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
    http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-3.0.xsd">

    <mvc:annotation-driven />
    <context:component-scan base-package="com.studytrails.tutorials.springwebflow" />

    <!--Define FlowHandlerMapping to tell DispatcherServlet (in web.xml)
          to send flow requests to Spring Web Flow -->
    <bean class="org.springframework.webflow.mvc.servlet.FlowHandlerMapping">
        <property name="flowRegistry" ref="loginFlowRegistry" />
    </bean>

    <!-- Define FlowHandlerAdapter to handle Spring Web Flow request call.
            This is the Controller class in Spring Web Flow -->
    <bean class="org.springframework.webflow.mvc.servlet.FlowHandlerAdapter">
        <property name="flowExecutor" ref="loginFlowExecutor" />
    </bean>

</beans>

логин-servlet-config.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"
        xmlns:flow="http://www.springframework.org/schema/webflow-config"
    xsi:schemaLocation="http://www.springframework.org/schema/webflow-config
                        http://www.springframework.org/schema/webflow-config/spring-webflow-config-2.0.xsd
                        http://www.springframework.org/schema/beans
                        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

        <!-- Define the flow executor responsible for executing login web flow -->              
        <flow:flow-executor id="loginFlowExecutor" flow-registry="loginFlowRegistry"/>

        <!-- Define the registry that holds references to all the flow related XML configuration-->
        <flow:flow-registry id="loginFlowRegistry">
            <flow:flow-location id="loginFlow" path="/WEB-INF/flows/login-flow.xml"/>
        </flow:flow-registry>       

</beans>

логин-webflow-config.xml

<%@ page isELIgnored ="false" %>

<html xmlns:form="http://www.springframework.org/tags/form">

    <body>
        <form action="${flowExecutionUrl}&_eventId=loginCredentialsEntered" method="post"> 

            <input type="hidden" name="_flowExecutionKey" value="${flowExecutionKey}"/>
            <br/>
            Enter login name as <b>alba</b> and password as <b>pass</b> for successfull login.
            <br/>
            Use any other login name and password for login error.
            <br/>
            <br/>
            <table>
                <tr>
                    <td>Login Name:</td>
                    <td><input type="text" name="loginName"/></td>
                </tr>
                <tr>
                    <td>Password: </td>
                    <td><input type="text" name="password"/></td>
                </tr>
            </table>

            <br/>           
            <input type="submit" value="Login" />

        </form>
    </body>
</html>

display_login.jsp

PFA — это мои файлы, не могли бы вы объяснить, как потоки работают с URL-адресами.