How do i run a servlet??????

running servlets:i downloaded jsdk but how do i run a servlet? i got the error
C:\WINDOWS\Desktop>javac HTTPGetServlet.java
Exception in thread "main" java.lang.NoClassDefFoundError: com/sun/tools/javac/M
ain
when i tried to run my servlet, please help
thanks

As mentioned in another post in the thread, servlets run from within a web server that has pre-loaded the jvm and serves web requests. Often they are called 'sevlet containers' as they act like a wrapper program for the actual vm. Tomcat is such a web server, quite a popular one for running servlets, and is considered the reference implementation for a sevlet/jsp server. you can read up on it at...
http://jakarta.apache.org/tomcat/index.html
To get you started, this is what i did to set up tomcat. Im using RedHat Linux at home, so this may differ to what you have to do initially.
First, make sure you have at least the jsdk and jsdk ee installed and the appropiate JAVA_HOME and J2EE_HOME environment variables set.
I am using the Apache web server to handle web page requests on my box. If the request is for a context containing a servlet or jsp file (context is a tomcat term for a particular location or path in the url) then apache passes the request to tomcat via a apache module and a special protocol. Tomcat then runs the .class file or .jsp file, returns the output to apache which then returns the output back to the browser. So initially you should set up and have the apache web server running.
Next download and install the jserv or tomcat module for apache, which apache uses to communicate with tomcat via a special protocol, and the tomcat rpms from...
http://jakarta.apache.org/builds/jakarta-tomcat/release/v3.2.3/rpms/
...Im using 3.2.3 which works fine. you may try the later versions if you like.
Install the tomcat rpms. They should dump a whole lot of stuff in a /var/tomcat directry, including some nice sample and admin apps. if you had downloaded and installed the tomcat-manuals rpm you can find lots of helpful information in the /usr/doc/tomcat-{your version here}/ directry. This is what you should probably read through now!
Once that is done, its simply a matter of adding a reference in your httpd.conf file to the tomcat.conf file in the tomcat/conf dir (if you want to have complete control over the tomcat module and contexts) or tomcat-apache.conf (in the same directry) if youd like tomcat to handel its own configuration of apache. something like...
include /var/tomcat/conf/tomcat.conf
...should do.
then run tomcat start (in /usr/bin/) and apache and away you go. You should be able to point your browser to your.server.com/admin/ and get the tomcat admin tools. This allows you to add view and delete contexts to your server (say for separating different server-side applications). your.server.com/examples/ has some nice stuff as well.
Hope this helps. I warn you im not an expert and haven't looked at this stuff for some time. I probably have something wrong so please, experts, if you see something stuffed up let us know.

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