Java – Changing the default session timeout of a spring web application

javasession-timeoutspringtomcat

I have to test a web application that is written by spring and jsp. The default session-timeout for the application is 30 min.

I want to reduce the session-timeout. For doing this, I have changed in the web.xml file in tomcatInstallationLocation/conf/. But it doesn't work. The default configuration in tomcatInstallationLocation/conf/web.xml was –

<session-config>
    <session-timeout>30</session-timeout>
</session-config>

Where I've just changed the time and make it –

<session-config>
    <session-timeout>5</session-timeout>
</session-config>

But is still doesn't work. As I know far, in this situation I have to make a change in my spring application's web.xml. But I'm not sure. Can any one help me?

Thanks in advance.

Best Answer

Session timeout hierarchy:

$tomcat_home/conf/web.xml
$your_webapp/WEB-INF/web.xml
manual invocation of HttpSession.setMaxInactiveInterval(int)

Each subsequent entry overrides others above.

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Java – What’s the difference between @Component, @Repository & @Service annotations in Spring

From Spring Documentation:

The @Repository annotation is a marker for any class that fulfils the role or stereotype of a repository (also known as Data Access Object or DAO). Among the uses of this marker is the automatic translation of exceptions, as described in Exception Translation.

Spring provides further stereotype annotations: @Component, @Service, and @Controller. @Component is a generic stereotype for any Spring-managed component. @Repository, @Service, and @Controller are specializations of @Component for more specific use cases (in the persistence, service, and presentation layers, respectively). Therefore, you can annotate your component classes with @Component, but, by annotating them with @Repository, @Service, or @Controller instead, your classes are more properly suited for processing by tools or associating with aspects.

For example, these stereotype annotations make ideal targets for pointcuts. @Repository, @Service, and @Controller can also carry additional semantics in future releases of the Spring Framework. Thus, if you are choosing between using @Component or @Service for your service layer, @Service is clearly the better choice. Similarly, as stated earlier, @Repository is already supported as a marker for automatic exception translation in your persistence layer.

Annotation	Meaning
`@Component`	generic stereotype for any Spring-managed component
`@Repository`	stereotype for persistence layer
`@Service`	stereotype for service layer
`@Controller`	stereotype for presentation layer (spring-mvc)

Java – Role/Purpose of ContextLoaderListener in Spring

Your understanding is correct. The ApplicationContext is where your Spring beans live. The purpose of the ContextLoaderListener is two-fold:

to tie the lifecycle of the ApplicationContext to the lifecycle of the ServletContext and
to automate the creation of the ApplicationContext, so you don't have to write explicit code to do create it - it's a convenience function.

Another convenient thing about the ContextLoaderListener is that it creates a WebApplicationContext and provides access to the ServletContext via ServletContextAware beans and the getServletContext method.

Best Answer

Related Solutions

Java – What’s the difference between @Component, @Repository & @Service annotations in Spring

Java – Role/Purpose of ContextLoaderListener in Spring

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