How to add context parameter after loading spring context

Question

I want to add a servlet context parameter/attribute through spring configuration. I need this because the value I want to add in servlet context is available only after spring container loads. I'm adding the value inside the servlet context as I need the value in almost all my .jsp files.

Essentially I need a mechanism opposite to this

You can't add servlet context parameters programmatically, there's no API for that. Why can't your Spring controllers just add the values to the model before forwarding to the view? — skaffman
– skaffman, Commented Jun 4, 2010 at 13:56
Actually, you can... check out the javadocs for ServletContext, namely setAttribute(String,Object). — cjstehno
– cjstehno, Commented Jun 4, 2010 at 16:47

cjstehno · Accepted Answer · 2010-06-04 16:42:50Z

9

Assuming you are using a properly configured Spring Web Application Context, you could try implementing a bean that implements org.springframework.web.context.ServletContextAware and org.springframework.beans.factory.InitializingBean so that you could add whatever you want to the ServletContext in the afterPropertiesSet method implementation.

public class ServletContextInjector implements ServletContextAware,InitializingBean {
    private ServletContext servletContext;

    public void setServletContext(ServletContext sc){ this.servletContext = sc; }

    public void afterPropertiesSet(){
        servletContext.setAttribute( /* whatever */ );
    }
}

Hope this helps.

answered Jun 4, 2010 at 16:42

cjstehno

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