Estoy tratando de aprender cómo funciona la seguridad de Spring, así que descargué un proyecto de muestra y luego intenté implementar esa solución para mi proyecto. Pero cuando intento iniciar sesión, obtengo404 error y en una barra de direcciones tengohttp://localhost:8080/fit/j_spring_security_check. Traté de ver preguntas similares aquí, pero no pude darme cuenta de cómo aplicarlo a mi proyecto. Estaría muy agradecido, si alguien, que tiene más experiencia, pudiera ayudarme.

La estructura de mi aplicación se ve así:

applicationContext.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:context="http://www.springframework.org/schema/context"
   xmlns:security="http://www.springframework.org/schema/security"
   xsi:schemaLocation="
    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
    http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.1.xsd">

<context:annotation-config/>

<context:component-scan base-package="cz.cvut.fit"/>

<import resource="classpath:applicationContext-security.xml"/>

</beans>

applicationContext-web.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"
   xmlns:security="http://www.springframework.org/schema/security"
   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
    http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.1.xsd">

<context:annotation-config/>

<context:component-scan base-package="cz.cvut.fit" />

<mvc:annotation-driven />

<security:global-method-security jsr250-annotations="enabled"
                                 proxy-target-class="true"/>
</beans>

applicationContext-security.xml:

<beans xmlns:security="http://www.springframework.org/schema/security"
   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-3.0.xsd
             http://www.springframework.org/schema/security
             http://www.springframework.org/schema/security/spring-security-3.1.xsd">

<security:http pattern="/css/**" security="none"/>
<security:http pattern="/views/login.jsp*" security="none"/>
<security:http pattern="/views/denied.jsp" security="none"/>

<security:http auto-config="true" access-denied-page="/denied.jsp" servlet-api-provision="false">
    <security:intercept-url pattern="/views/login.jsp*" access="IS_AUTHENTICATED_ANONYMOUSLY"/>
    <security:intercept-url pattern="/views/edit/**" access="ROLE_EDIT"/>
    <security:intercept-url pattern="/views/admin/**" access="ROLE_ADMIN"/>
    <security:intercept-url pattern="/**" access="ROLE_USER"/>
    <security:form-login login-page="/views/login.jsp" authentication-failure-url="/denied.jsp"
                         default-target-url="/home.jsp"/>
    <security:logout/>
</security:http>

<security:authentication-manager>
    <security:authentication-provider>
        <security:user-service>
            <security:user name="adam" password="adampassword" authorities="ROLE_USER"/>
            <security:user name="jane" password="janepassword" authorities="ROLE_USER, ROLE_ADMIN"/>
            <security:user name="sue" password="suepassword" authorities="ROLE_USER, ROLE_EDIT"/>
        </security:user-service>
    </security:authentication-provider>
</security:authentication-manager>

</beans>