core.clj

(ns hello-world.core
  (:use compojure.core
        ring.util.response)
  (:require [compojure.route :as route]
            [compojure.handler :as handler]))

(defroutes d3-routes
  (GET "/" [] (redirect "/index.html"))
  (GET "/test" [] "hello.")
  (route/resources "/"))

(def app
  (handler/site d3-routes))

gistfile1.txt

$ rm -rf lib classes
$ lein deps
Copying 15 files to /home/jim/Development/hello-world/lib
$ lein repl
REPL started; server listening on localhost port 21135
user=> (require 'hello-world.core)
nil
user=> (use 'ring.adapter.jetty)
nil
user=> (run-jetty #'hello-world.core/app {:port 3000 :join? false})
2011-08-13 13:34:10.254:INFO::Logging to STDERR via org.mortbay.log.StdErrLog
2011-08-13 13:34:10.255:INFO::jetty-6.1.26
2011-08-13 13:34:10.311:INFO::Started SocketConnector@0.0.0.0:3000
#<Server Server@1d753b7>
user=> (require 'hello-world.core :reload)                         
nil
user=>

project.clj

(defproject hello-world "1.0.0-SNAPSHOT"
  :description "FIXME: write"
  :dependencies [[org.clojure/clojure "1.3.0-beta1"]
                 [compojure "0.6.5"]
                 [ring/ring-jetty-adapter "0.3.11"]])