Why my servlet doesn't run

Question

Hi, all
Ask a stupid question, i install tomcat 4.1.31, i can see those sample servlet, even i put my sample servlet into example folder, i still can see them. However, when i want to see http://localhost/servlet/HelloServlet
It gives me this error messge:
The requested resource (/servlet/HelloServlet) is not available.
I checked my classpath, and make sure all folders are correct, it still gives me the same error.
Can anyone advise it?
Thanks
David

Answer 1

hi dawang.... even i encountered the same problem when i used servlet the first time... make sure ur storing ur servlet class file in the url.. webapps\oot/web-inf\classes\helloservlet .. if its is correct then u just need to enable the invoker servlet.. for this go to the conf\web.xml ...open the xml file and do the following changes
To enable the invoker servlet, uncomment the following servlet and servlet-mapping elements in install_dir/conf/web.xml. Do not confuse this Apache Tomcat-specific web.xml file with the standard one that goes in the WEB-INF directory of each Web application.
<servlet>
<servlet-name>invoker</servlet-name>
<servlet-class>
org.apache.catalina.servlets.InvokerServlet
</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>invoker</servlet-name>
<url-pattern>/servlet/*</url-pattern>
</servlet-mapping>
it worked with my tomcat 5.5.7.. and hope it goes the same with u... and anyways if u don't want to save ur servlet in the root directory... make ur own webapplication inside the webapps directory and use the following url... http://localhost:8080/webappname/servlet/helloservlet... or if the file is saved in root directory use the following http://localhost:8080/servlet/helloservlet...
make sure ur not using any package to store ur servlet or using a package in ur servlet prog...
if ur doing so... just make another directory in ur classes directory.. with the same name as ur package and store the servlet class file there
and use the following url
http://localhost:8080/servlet/pacakagename.helloservlet
mind u 8080 is the default port no. of my tomcat installlation.. if u have anyother port no.. do mention that.
i hope this would help u solve ur problem...