[SOLVED] scope problem with a servlet

[pnolans]

Hi
I'm a guy who hasn't written Java in a few years, and am trying to do the same thing in Java Servlets that I can currently do in Server-side Perl. Why?
Just trying to improve my skills. widen my horizons. improve my resume.
or something!

So, I'm writing Java from scratch (and borrowed snippets) ...

I also cross-posted this in the Java forum.

--------------------------------------------------------------

I get the following error when I compile the snippet below. If I comment out the line it complains about, it compiles cleanly.

I'd like to be able to call a subroutine... I mean, invoke a method... from within a doPost or doGet. All of the
examples I've seen put all the code within one method or they have methods that don't do anything.

I'd like to avoid having all of the print statements in one method. It seems to defeat the purpose of OO programming.

Thanks in advance for any help.

Pat
R:\SoftwareDev\MyJavaWork\Snippet1>javac -classpath "R:\SoftwareDev\Tomcat 4.1\c
ommon\lib\servlet.jar" Snippet1.java
Snippet1.java:31: cannot find symbol
symbol : variable output
location: class Snippet1
output.println(" Here's a method with more stuff ");
^
1 error

Here's the code
-----------------------------------------------------
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class Snippet1 extends HttpServlet {

public void doGet (HttpServletRequest request,
HttpServletResponse response) throws
ServletException, IOException {
String formText;

response.setContentType("text/html");
PrintWriter output=response.getWriter();

formText=request.getParameter("message");

if (formText==null || formText.length()==0) {
formText="This is my first servlet in quite a while <br> ";
}

output.println(formText);


}

public void morestuff() {

output.println(" Here's a method with more stuff "); //
//If I comment out the line above . .. I geta clean compile

}

}

[pnolans]

Hi

The original post has been solved.. I did the following, adding declarations
for Request and Response ... throwing clause... not it works. :

public void morestuff(HttpServletRequest req,
HttpServletResponse resp) throws
ServletException, IOException {

resp.setContentType("text/html");
PrintWriter output2 = resp.getWriter();



output2.println(" <h2> in morestuff method </h2>");

}

[pnolans]

I meant ... NOW it works. I said "not it works".

[udayadas]

The easier way could have been;

Declare your PrintWriter output as a global variable.In that case output can be shared by both the methods.

[pnolans]

The easier way could have been;

Declare your PrintWriter output as a global variable.In that case output can be shared by both the methods.

Might you feel like giving an example of how to do that? I guess I was dissuaded from doing that since my "Java in a Nutshell" book said that Java does not have global variables.

What would be the syntax for that?

thanks,
Pat

[udayadas]

mport java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class Snippet1 extends HttpServlet {

PrintWriter output;

public void doGet (HttpServletRequest request,
HttpServletResponse response) throws
ServletException, IOException {
String formText;

response.setContentType("text/html");
output=response.getWriter();

formText=request.getParameter("message");

if (formText==null || formText.length()==0) {
formText="This is my first servlet in quite a while <br> ";
}

output.println(formText);


}

public void morestuff() {

output.println(" Here's a method with more stuff "); //
//If I comment out the line above . .. I geta clean compile

}

}

[pnolans]

Thanks. I'll give that a try!

[pnolans]

I found another way to do it as well, but your way is even easier.


Thanks very much,

Pat