Can a bean access ServletContext?

Question

Hi!
Please help me!
I put initial beans to ServletContext in my servlets init() method.
How can I get this beans (app scope) from another bean (session scope)?
Can I reach ServletContext from a class that is not a servlet?
Thaks!

Answer 1

Please help me!
I put initial beans to ServletContext in my servlets
init() method.
How can I get this beans (app scope) from another bean
(session scope)?
Can I reach ServletContext from a class that is not a
servlet?Not in a normal JavaBean. You can do it with custom tags, but I guess that is not what you want.
What you would have to do is create a setter method for the Bean:
//This is part of the bean in session that requires access to one in servlet context
public class SessionBeanClass ...
  private ServletBeanClass otherBean;
  public void setOtherBean(ServletBeanClass sbc) { otherBean = sbc; }
  public void getSomethingThatReliesOnOtherBean()
    if (otherBean == null) throw IllegalStateException("This Something can not be done until an object of type ServletBeanClass is assigned.");
    // rest of method
}Then in the servlet you would need to assign the correct value, preferrably when the bean is first created.
// somewhere in your servlet
    SessionBeanClass sessionBean = new SessionBeanClass();
    sessionBean.setOtherBean((ServletBeanClass)getServletContext().getAttribute("otherBean"));Or if you are using a JSP:
<jsp:useBean id="sessionBean" class="my.package.SessionBeanClass" scope="session">
  <jsp:setProperty name="sessionBean" property="otherBean" value="${servletContext.otherBean}"/>
</jsp:useBean>