log JSP output to file

Question

I'm not a java guy and I got some JSP code from a friend for testing purposes. All succes/faliure information is being output to browser, but the problem is - I'm not the one who is making the request. So

Is there any simple way to copy/redirect default output of the JSP to a file on server but still finish the request?

Answer 1

Create a JSP custom body tag that can capture the contents of it's body to the file after the body is processed. You would dispatch to a wrapper jsp with the capture tag and the real jsp is passed as a parameter.

Example:

<mytags:capture filename="file.html">

<jsp:include page="<%=request.getParameter("realpage")%>"/>

</mytags:capture>

Checkout online tag library :

http://www.servletsuite.com/jsp.htm

On this library I found "Postprocessor taglib" this had getContent & getContentString which can be used in you case.

http://www.servletsuite.com/servlets/postproctag.htm

Answer 2

I think that you can use the standard code:

System.out.println("message...");

which usually prints to catalina.out in Tomcat application server.