How to connect nginx to my java module

You will need to build your Java service in its own app server -- Tomcat would be a good choice for this. From there, it's a simple matter of configuring nginx to act as a proxy to Tomcat. Your nginx configuration will look something like the following:

user www-data;worker_processes 4;pid /var/run/nginx.pid;events {    worker_connections 4096;    # multi_accept on;}http {    server {        listen 80; #incoming port for nginx        server_name localhost;        location / {            proxy_pass http://127.0.0.1:8080;        }    }#...and other things, like basic settings, logging, mail, etc. 

The important piece here is the setting for proxy_pass. That's telling nginx to accept requests on port 80 and redirect them to port 8080 (Tomcat's standard port).

With nginx-clojure we can write content handler,rewrite handler, access handler and header filter in java, clojure or groovy. e.g.

in nginx.conf

   location /java {      content_handler_type 'java';      content_handler_name 'mytest.HelloService';   }

HelloService.java

package mytest;import java.util.Map;import nginx.clojure.java.ArrayMap;import nginx.clojure.java.NginxJavaRingHandler;import static nginx.clojure.MiniConstants.*;public  class HelloService implements NginxJavaRingHandler {@Overridepublic Object[] invoke(Map<String, Object> request) {    return new Object[] {             NGX_HTTP_OK, //http status 200            ArrayMap.create(CONTENT_TYPE, "text/plain"), //headers map            "Hello, Java & Nginx!"  //response body can be string, File or Array/Collection of string or File                };    }}