problem with the request dispatcher

[rajesh thallamapuram]

org.apache.jasper.JasperException: An exception occurred processing JSP page /StatusTRAN.jsp at line 13

10: request.setAttribute("trackid",request.getParameter("merchantreferenceno"));
11: request.setAttribute("amt",request.getParameter("amount"));
12: RequestDispatcher rd=request.getRequestDispatcher("../saveResponse.fly");
13: rd.forward(request,response);
14: %>
15: </BODY>
16: </HTML>


Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:568)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:470)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

root cause

java.lang.NullPointerException
org.apache.jsp.StatusTRAN_jsp._jspService(StatusTRAN_jsp.java:76)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)


I'm getting NullPointer Exception while forwarding requesting dispatcher please give me suggestion why it is happeninig?

please help me...

[J. Kevin Robbins]

Double check the path to saveResponse.fly. It has to be relative to StatusTRAN.jsp.

You could try putting them in the same directory and then doing RequestDispatcher rd=request.getRequestDispatcher("saveResponse.fly")

[Seetharaman Venkatasamy]

what is the values for these Parameters? . I doubt either of any one may return null.

request.getParameter("merchantreferenceno");
request.getParameter("amount");

Note: Putting Java Code in a Jsp is Poor Practice. Use Java classes for Java Code and access the classes from your backend/servlet and forward the return values to JSP for display

[Seetharaman Venkatasamy]

Welcome to JavaRanch rajesh thallamapuram

[rajesh thallamapuram]

I'm getting both the values.. and I kept statusTran.jsp inside webcontent --> payment gateway folder..

yeah putting the java code inside jsp is not good.. but, for the payment gateway i have to use JSP only....

[rajesh thallamapuram]

yes i kept the both jsp's in same folder. I'm accessing second using web.xml file because while executing the code in public server i'm getting some problems. So, through the web.xml I'm accessing.

[rajesh thallamapuram]

Any way I have decided to change my logic. Instead of forward i'm redirecting to jsp page and I used session to store attributes.

Thanks for your help