magnolia blossom spring security login

I am able to create a project using Blossom module. I create a login template to provide login function for my site using spring security.

I am not able to submit my request to j_spring_security_check .it's keep on saying 404 not found.

How I can include this login functionality using spring security in blossom magnolia?

ADDED WEB.XML

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

http://ift.tt/LU8AHS" version="2.5"> Magnolia magnolia

<filter>
    <filter-name>springSecurityFilterChain</filter-name>
    <filter-class>info.magnolia.module.blossom.web.InstallationAwareDelegatingFilterProxy</filter-class>
</filter>
<filter-mapping>
    <filter-name>springSecurityFilterChain</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

<filter>
    <display-name>Magnolia global filters</display-name>
    <filter-name>magnoliaFilterChain</filter-name>
    <filter-class>info.magnolia.cms.filters.MgnlMainFilter</filter-class>
</filter>
<filter-mapping>
    <filter-name>magnoliaFilterChain</filter-name>
    <url-pattern>/*</url-pattern>
    <dispatcher>REQUEST</dispatcher>
    <dispatcher>FORWARD</dispatcher>
    <dispatcher>INCLUDE</dispatcher>
    <dispatcher>ERROR</dispatcher>
</filter-mapping>

<listener>
    <listener-class>info.magnolia.init.MagnoliaServletContextListener</listener-class>
</listener>
<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>
        /WEB-INF/spring-database.xml,
        /WEB-INF/spring-security.xml
    </param-value>
</context-param>

<!-- Spring Security -->
<context-param>
    <description>Vaadin production mode</description>
    <param-name>productionMode</param-name>
    <param-value>true</param-value>
</context-param>
<context-param>
    <param-name>heartbeatInterval</param-name>
    <param-value>90</param-value>
</context-param>
<!-- These are the default paths searched for magnolia configuration. Uncomment 
    if you need to customize these. Your container might also do its own variables 
    substitution here. Tomcat, for instance, allows you to use system properties, 
    such as ${user.home}. -->
<!-- <context-param> <param-name>magnolia.initialization.file</param-name> 
    <param-value> WEB-INF/config/${servername}/${contextPath}/magnolia.properties, 
    WEB-INF/config/${servername}/${webapp}/magnolia.properties, WEB-INF/config/${servername}/magnolia.properties, 
    WEB-INF/config/${contextPath}/magnolia.properties, WEB-INF/config/${webapp}/magnolia.properties, 
    WEB-INF/config/default/magnolia.properties, WEB-INF/config/magnolia.properties 
    </param-value> </context-param> -->
<jsp-config>
    <jsp-property-group>
        <url-pattern>*.jsp</url-pattern>
        <page-encoding>UTF-8</page-encoding>
    </jsp-property-group>
</jsp-config>
<error-page>
    <error-code>404</error-code>
    <location>/docroot/404.html</location>
</error-page>