Exception handling in servlets

[patnim17]

Hi,
I have a piece of code in the serlvlet like this:

try{
response.sendRedirect("page1.jsp");
}
catch(Exception e)
{
System.out.println(e.getMessage());
try{
response.sendRedirect("error.jsp");
}catch(Exception ex)
{
System.out.println(ex.getMessage());
}

}

if I keep the response.sendRedirect("error.jsp") without the try and catch block I get a compile error saying "Unreported IOException". That is why I put it under a try catch block. But now I want to make sure that this error is not just caught but also bubbled up...
how can I do that?

pat

 

[jemminger]

if you want to "bubble up" an exception, re-throw it. just looking at this without testing, gives the feeling it could be an infinite loop?

try {
response.sendRedirect("page1.jsp");
}
catch(Exception e) {
System.out.println(e.getMessage());

try {
response.sendRedirect("error.jsp");
}
catch(Exception ex) {
System.out.println(ex.getMessage());
throw ex;
}
}

-jeff

http://www.jeffemminger.com

try { succeed(); } catch(E) { tryAgain(); } finally { rtfm(); }
i like your sleeves...they're real big

 

[sedj]

Your doPost() and doGet() method should throw ServletException and IOException (and any method called by those methods which do any response object handling).

Then you have :

void doPost(........) throws ServletException, IOException {
.....

  try {
    response.sendRedirect("page1.jsp");
  } catch(Exception e) {
    e.printStackTrace(System.err);
    response.sendRedirect("page1.jsp");
  }

}

--------------------------------------------------
Free Java/J2EE Database Connection Pooling Software

http://www.primrose.org.uk