WAR created using Clojure deployed to Apache Tomcat does not launch Servlet

Question

I created a WAR sample, as shown on the Compajure Getting Started page , and deployed it to the Apache Tomcat 6.0.2 wepapps folder. The Web.xml I use looks like this:

<web-app>
 <servlet>
   <servlet-name>myservlet</servlet-name>
   <servlet-class>myapp.MyServlet</servlet-class>
 </servlet>
 <servlet-mapping>
   <servlet-name>myservlet</servlet-name>
   <url-pattern>/</url-pattern>
 </servlet-mapping>
</web-app>

Accessing the URL causes the following error:

java.lang.NullPointerException: Handler returned nil (maybe no routes matched URI)
    compojure.http.servlet$request_handler__72.invoke(servlet.clj:110)
    myapp.MyServlet$_service__108.invoke(MyServlet.clj:11)
    myapp.MyServlet.service(Unknown Source)

I have included the tabs Clojure, Clojure contrib in the WEB-INF / lib folder.

Has anyone encountered a similar issue with Clojure WARs on Apache Tomcat?

The servlet I'm trying to run is:

 ;; src/myapp/MyServlet.clj
(ns myapp.MyServlet
    (:use compojure)
    (:gen-class
        :extends javax.servlet.http.HttpServlet))

(defroutes greeter
    (GET "/"
        (html [:h1 "Hello World"])))

(defservice greeter)

When I replaced (defservice greeter)with

(run-server {:port 8080}
  "/*" (servlet greeter))

I can run this and access the URL from the browser.

However, when I run this from Apache Tomcat, I still encounter the same problem.

Answer 1

"/" defroutes "/*". defroutes :

(defroutes greeter
    (GET "/*"
        (html [:h1 "Hello World"])))

Apache Tomcat 6.

Answer 2

1) ? . , . - :

(defroutes webservice
  (GET "/some-route/"
    some-function-name))) ;; more complicated variations are possible, of course

2) Jetty. Jetty, , WAR, .

(defserver webserver
             {:port 8080}
             "/*" (servlet webservice))
(start main-server) ;; starts a Jetty webserver on 8080

, , ​​ .