Help needed. Problem with servlet.

Question

Hello ppl. Ok. I've never really needed to implement servlets in my projects before but I experimented by writing a simple helloworld servlet. It compiled successfully and I tested it in the examples servlet dir and it worked. To test it in the ROOT dir, I placed the servlet in the ROOT/WEB-INF/classes folder and edited the web.xml file with:
<servlet>
          <servlet-name>HelloWorldExample</servlet-name>
          <servlet-class>HelloWorldExample</servlet-class>
     </servlet>
     <servlet-mapping>
          <servlet-name>HelloWorldExample</servlet-name>
          <url-pattern>servlet/*</url-pattern>
     </servlet-mapping>
When I try and execute the servlet by using this URL: localhost:8080/servlet/helloworld I get an internal server error and the server crashes. I removed the entry from the web.xml file and Tomcat started up again. What went wrong? Can someone enlighten me in how to get my test servlet working becuase i may use them in the future. Thanks.

Answer 1

Nope, Still didnt work. As soon as I put in:
<servlet>
     <servlet-name>HelloWorldExample</servlet-name>
     <servlet-class>HelloWorldExample</servlet-class>
     </servlet>
     <servlet-mapping>
     <servlet-name>HelloWorldExample</servlet-name>
     <url-pattern>servlet/HelloWorldExample</url-pattern>
     </servlet-mapping>
Tomcat went offline!
I have another entry which is:
<servlet>
          <servlet-name>org.apache.jsp.index_jsp</servlet-name>
          <servlet-class>org.apache.jsp.index_jsp</servlet-clas
>
     </servlet>
     <servlet-mapping>
          <servlet-name>org.apache.jsp.index_jsp</servlet-name>
          <url-pattern>/index.jsp</url-pattern>
     </servlet-mapping>
Do you think they may be conflicting? Thanks.Tomcat going offline is quite weird. However,
<url-pattern>/index.jsp</url-pattern>
this is perfectly valid. Lemme ask you this: did u come up with this stuff on your own or was it generated for you by the container? It looks like it was generated upon compilation of the jsp. If that is the case it should cause any conflicts. However now if you want to invoke the servlet/jsp you must use a URL like:
http://localhost:<PORT_NO>/index.jsp
Cheers