个回答

• ed

  2015-12-17 15:44:13

  已采纳

  RequestDispacher,forward method taking request & response as parameter & while getting request dispatcher we are giving path for forward resource,

  RequestDispacher rd = request.getRequestDispacher("/resource.jsp");rd.forward(request,response);

  
  and while forwarding through PageContext we are giving resource path to parameter of forward method,
  PageContext.forward("/resource.jsp");
  
  we can use RequestDispacher in Servlet as well as Jsp
  but PageContext we can use in only jsp.

  
  

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• ed

  2015-12-17 15:39:25

  RequestDispatcher.forward() and PageContext.forward() are effectively the same.  PageContext.forward is a helper method that calls the RequestDispatcher method.(forward)

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