Help catching session timeout in spring

Question

I have a simple Spring 3 MVC application. I am using a sessionAttribute and everything works fine except when I let the page sit for 30 minutes or longer. I then get a

org.springframework.web.HttpSessionRequiredException

telling me my object is not found in session.

I am thinking I need to somehow redirect back to the same page when a session timeout occurs. I am not sure how to do this correctly with spring.

There is no login required and I am already checking if the object is null.

Any suggestions would be appreciated.

Thanks

Solution

You can add error-page binding to HttpSessionRequiredException which will redirect to first page in your application

example:

web.xml

<web-app>
    <error-page>
        <exception-type>org.springframework.web.HttpSessionRequiredException</exception-type>
        <location>/index.jsp</location>
    </error-page>
</web-app>