Динамическое создание новых ролей и разрешений в Spring Security 3

Я использую Spring Security 3 в проекте Struts 2 + Spring IOC.

Я использовал в своем проекте пользовательский фильтр, поставщика аутентификации и т. Д.

Вы можете увидеть мой security.xml здесь

<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/security"
  xmlns:beans="http://www.springframework.org/schema/beans"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:p="http://www.springframework.org/schema/p"
   xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
       http://www.springframework.org/schema/security
       http://www.springframework.org/schema/security/spring-security-3.1.xsd">


<global-method-security pre-post-annotations="enabled">
        <expression-handler ref="expressionHandler" />
</global-method-security>

<beans:bean id="expressionHandler"
        class="org.springframework.security.access.expression.method.DefaultMethodSecurityExpressionHandler" >
    <beans:property name="permissionEvaluator" ref="customPermissionEvaluator" />
</beans:bean>

<beans:bean class="code.permission.MyCustomPermissionEvaluator" id="customPermissionEvaluator" />

<!-- User Login -->

  <http auto-config="true" use-expressions="true" pattern="/user/*" >
<intercept-url pattern="/index.jsp" access="permitAll"/>
<intercept-url pattern="/user/showLoginPage.action" access="permitAll"/>
<intercept-url pattern="/user/showFirstPage" access="hasRole('ROLE_USER') or hasRole('ROLE_VISIT')"/>
<intercept-url pattern="/user/showSecondUserPage" access="hasRole('ROLE_USER')"/>
<intercept-url pattern="/user/showThirdUserPage" access="hasRole('ROLE_VISIT')"/>
<intercept-url pattern="/user/showFirstPage" access="hasRole('ROLE_USER') or hasRole('ROLE_VISIT')"/>
<form-login login-page="/user/showLoginPage.action" />
<logout invalidate-session="true"
        logout-success-url="/"
        logout-url="/user/j_spring_security_logout"/>
<access-denied-handler ref="myAccessDeniedHandler" />

  <custom-filter before="FORM_LOGIN_FILTER" ref="myApplicationFilter"/>
  </http>

    <beans:bean id="myAccessDeniedHandler" class="code.security.MyAccessDeniedHandler" />

    <beans:bean id="myApplicationFilter" class="code.security.MyApplicationFilter">
        <beans:property name="authenticationManager" ref="authenticationManager"/>
        <beans:property name="authenticationFailureHandler" ref="failureHandler"/>
        <beans:property name="authenticationSuccessHandler" ref="successHandler"/>
    </beans:bean>

    <beans:bean id="successHandler"
  class="org.springframework.security.web.authentication.SavedRequestAwareAuthenticationSuccessHandler">
      <beans:property name="defaultTargetUrl" value="/user/showFirstPage">   </beans:property>
    </beans:bean>

     <beans:bean id="failureHandler"
  class="org.springframework.security.web.authentication.SimpleUrlAuthenticationFailureHandler">
      <beans:property name="defaultFailureUrl" value="/user/showLoginPage.action?login_error=1"/>
    </beans:bean>

    <beans:bean id= "myUserDetailServiceImpl" class="code.security.MyUserDetailServiceImpl">
    </beans:bean>

     <beans:bean id="myAuthenticationProvider" class="code.security.MyAuthenticationProvider">
        <beans:property name="userDetailsService" ref="myUserDetailServiceImpl"/>

    </beans:bean>

 <!-- User Login Ends -->

 <!-- Admin Login -->

    <http auto-config="true" use-expressions="true" pattern="/admin/*" >
    <intercept-url pattern="/index.jsp" access="permitAll"/>
    <intercept-url pattern="/admin/showSecondLogin" access="permitAll"/>
    <intercept-url pattern="/admin/*" access="hasRole('ROLE_ADMIN')"/>
    <form-login login-page="/admin/showSecondLogin"/>
    <logout invalidate-session="true"
        logout-success-url="/"
        logout-url="/admin/j_spring_security_logout"/>

    <access-denied-handler ref="myAccessDeniedHandlerForAdmin" />
    <custom-filter before="FORM_LOGIN_FILTER" ref="myApplicationFilterForAdmin"/> 
</http>

<beans:bean id="myAccessDeniedHandlerForAdmin" class="code.security.admin.MyAccessDeniedHandlerForAdmin" />

  <beans:bean id="myApplicationFilterForAdmin" class="code.security.admin.MyApplicationFilterForAdmin">
        <beans:property name="authenticationManager" ref="authenticationManager"/>
        <beans:property name="authenticationFailureHandler" ref="failureHandlerForAdmin"/>
        <beans:property name="authenticationSuccessHandler" ref="successHandlerForAdmin"/>
   </beans:bean>

    <beans:bean id="successHandlerForAdmin"
  class="org.springframework.security.web.authentication.SavedRequestAwareAuthenticationSuccessHandler">
    </beans:bean>

    <beans:bean id="failureHandlerForAdmin"
  class="org.springframework.security.web.authentication.SimpleUrlAuthenticationFailureHandler">
       <beans:property name="defaultFailureUrl" value="/admin/showSecondLogin?login_error=1"/>
     </beans:bean>

        <authentication-manager alias="authenticationManager">
    <authentication-provider ref="myAuthenticationProviderForAdmin" />
    <authentication-provider ref="myAuthenticationProvider" />
</authentication-manager>

<beans:bean id="myAuthenticationProviderForAdmin" class="code.security.admin.MyAuthenticationProviderForAdmin">
    <beans:property name="userDetailsService" ref="userDetailsServiceForAdmin"/>
</beans:bean>

<beans:bean id= "userDetailsServiceForAdmin" class="code.security.admin.MyUserDetailsServiceForAdminImpl">
</beans:bean>

 <!-- Admin Login Ends -->

<beans:bean id="messageSource"
    class="org.springframework.context.support.ResourceBundleMessageSource">
    <beans:property name="basenames">
        <beans:list>
            <beans:value>code/security/SecurityMessages</beans:value>
        </beans:list>
    </beans:property>            
</beans:bean>

До сих пор вы можете видеть, что URL-шаблон, о котором я упоминал, жестко запрограммирован. Я хотел знать, есть ли способ создавать новые РОЛИ и РАЗРЕШЕНИЯ динамически, а не жестко.

Например, создание новых ролей и разрешений и сохранение их в базе данных, а затем доступ из базы данных. Я искал в сети, но не могу узнать, как добавлять новые записи в код.