#session-manager

keywords: session manager; redis session manager; redis session;

1. config listener

set JedisPool and cacheEngine, new customer CacheListener extends CacheEngineLoadListener:

CacheEngineLoadListener.java

public class CacheListener extends CacheEngineLoadListener {
    private static Log log = LogFactory.getLog(CacheListener.class);
    protected WebApplicationContext ctx;

    @Override
    public void contextInitialized(ServletContextEvent event) {
        ServletContext servletContext = event.getServletContext();
        this.ctx = WebApplicationContextUtils.getRequiredWebApplicationContext(servletContext);//get spring ctx
        JedisPool jedisPool = this.ctx.getBean(JedisPool.class);//get jedisPool with spring
        log.info(jedisPool);
        servletContext.setAttribute(RedisCacheEngine.JEDIS_POOL, jedisPool);
        super.contextInitialized(event);
    }

    @Override
    public void contextDestroyed(ServletContextEvent event) {
        super.contextDestroyed(event);
    }
}

2. config web.xml (CacheListener & CacheSessionFilter)

Parameter	Required	type	Default value	description
synRealTime	false	int	true/false	if true syn attr at set/remove(Attribute), or syn attr after chain.doFilter
maxInactiveInterval	false	int	28800	session expired time in second
cookieDomain	false	string	sub domain	set cookie domain
tldEnable	false	boolean	false	set cookie use top level domain
cookieSessionIdName	false	string	SESSIONID	session id name in cookie
cookieContextPath	false	string	/	cookie context path
sessionCacheKeyPrefix	false	string	session	session key prefix in redis
sessionAttributeListeners	false	string	null	javax.servlet.http.HttpSessionListeners name, split with comma

config web.xml

<listener>
    <listener-class>com.ezhe.www.listener.CacheListener</listener-class>
</listener>

<!-- session manager filter -->
<filter>
    <filter-name>CacheSessionFilter</filter-name>
    <filter-class>com.gozap.session.servlet.filter.session.CacheSessionFilter</filter-class>
    <init-param>
        <description>session expired time in second</description>
        <param-name>maxInactiveInterval</param-name>
        <param-value>3600</param-value>
    </init-param>
    <init-param>
            <description>if true syn attr at set/remove(Attribute), or syn attr after chain.doFilter</description>
            <param-name>synRealTime</param-name>
            <param-value>true</param-value>
    </init-param>
    <init-param>
        <description>session prefix int redis</description>
        <param-name>sessionCacheKeyPrefix</param-name>
        <param-value>session-ezhe</param-value>
    </init-param>
    <init-param>
        <description>use top level domain for sessionId </description>
        <param-name>tldEnable</param-name>
        <param-value>true</param-value>
    </init-param>
</filter>

<filter-mapping>
    <filter-name>CacheSessionFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

.... other filters

session-manager.png