Odtnhj

I'm just starting out learning some JSP and servlets today and was wondering if it's possible to get the session's ServletContext as a variable and pass it to a plain Java class? If so, how may I do that?

My simple servlet:

public class myServlet extends HttpServlet 

 protected void doPost(HttpServletRequest request, HttpServletResponse response) 
 HttpSession session = request.getSession(true); 

 //How do I receive the servlet context below in a plain Java class?
 ServletContext sc = session.getServletContext();
 request.setAttribute("sc", sc); 
 

My Java class is just a plain one:

public class myClass extends HttpServlet 

 //I want to be able to use the ServletContext as a variable that is passed from myServlet class into this one.

In myClass I want to be able to use it to get the real path file of a file within my project:

ServletContext sc
String path = sc.getRealPath(...)

EDIT: Can I do something like this in myServlet servlet?:

String realPath = sc.getRealPath("/WEB-INF/myFile");

But then how do I pass this realPath variable into myClass so I can use it there instead of in myServlet?

1. 
   

   create a class

   
   
   

   public class MyClass ....

   
   


2. 
   

   Have a variable of type ServletContext

   
   
   

   private ServletContext myContext;

   
   


3. 
   

   Set value through Constructor or setter

   
   
   

   void setContext (ServletContext sc) myContext = sc;

   
   


4. 
   

   Use it

   
   
   

   myContext.get....("xxx");

   
   

Edit

You can use this class from your servlet as

doPost (....) {

 ....
 ServletContext sc = session.getServletContext();
 MyClass mc = new MyClass ();
 mc.setContext (sc);

 // now the context is **in** the MyClass instance - how you use it is up to you.