Never been to CodeSnippets before?

Snippets is a public source code repository. Easily build up your personal collection of code snippets, categorize them with tags / keywords, and share them with the world (or not, you can keep them private!)

Ubuntu and writing Java servlets (See related posts)

Kind of a strange, and I'm sure this wouldn't have happened on any other distribution of Linux, but I spent forever looking through blogs, message boards, and all manner of other places looking for an answer to this question.

The problem was with this little itty bitty smidge of code:
/**
 * hello.java
 */
import javax.servlet.*;

class HelloWorld
{
        public static void main(String[] args)
        {
                System.out.println("Hello World!");
        }
}


Everytime I wanted to compile this, I got something like "Could not find javax.servlet. blah blah" So, eventually, I just pulled an apt-cache search j2 (for j2ee) and saw an entry for libservlet2.4-java. Hmmmmm, what the heck is that I wondered. I installed it and went to the Ubuntu site to look at what files were installed and sure enough:

/usr/share/java/jsp-api-2.0.jar
/usr/share/java/jsp-api.jar
/usr/share/java/servlet-api-2.4.jar
/usr/share/java/servlet-api.jar


Perfect! I added these paths to my CLASSPATH variable in my .bashrc and whamo, I'm in business and flaunting my little HelloWorld.class file all around town.

I hope this helps someone else!
to server java web jsp jre jdk class sun j2 j2ee jar war system 6 5 classpath path servlet by chrelad on Fri Aug 22 07:23:28 +0000 2008

Comments on this post

zippytheweasel posts on Mar 25, 2009 at 02:21
The problem here is the import:

import javax.servlet.*;


Since you're not using any classes from the javax.servlet package, this line is unnecessary. Removing it is a much better option unless you need one of its classes. Even then, servlet-api.jar is the file you're really interested in. The others are redundant.

Hope this helps.

You need to create an account or log in to post comments to this site.


Related Posts