nginx config for reverse proxy based on url

nginx.conf

#
# Simple basic nginx conf sample for setting up a reverse proxy
#

#user  nobody;
worker_processes  1;
error_log  logs/error.log  info;

#pid        logs/nginx.pid;

events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    access_log  logs/access.log;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

	proxy_cache_path  	D:/mping/devel/temp/cache levels=1:2 keys_zone=my-cache:8m max_size=1000m inactive=600m;
	proxy_temp_path 	D:/mping/devel/temp;
	port_in_redirect 	off;	
    
	gzip  			 	on;
	gzip_vary         	on;
	gzip_comp_level   	5;
	gzip_http_version 	1.0;
	gzip_min_length   	0;
	gzip_types        	text/plain text/html text/css image/x-icon application/x-javascript;	

	server {
	  listen           	80;
	  server_name      	mping;
	  proxy_cache 	   	my-cache;
	  proxy_set_header 	Host $host;	   
	  port_in_redirect 	off;
	  
	  client_max_body_size       40m;
	  client_body_buffer_size    128k;

	  proxy_connect_timeout      90;
	  proxy_send_timeout         90;
	  proxy_read_timeout         90;

	  proxy_buffer_size          4k;
	  proxy_buffers              4 32k;
	  proxy_busy_buffers_size    64k;
	  proxy_temp_file_write_size 64k;

	  #main location
	  location / {
		proxy_pass 			http://localhost:9080;
		proxy_redirect 		        http://localhost:9080/ http://$host:$server_port/;
		port_in_redirect 	        off;
		
		add_header	  		Reverse-Proxy 	  false;
		proxy_set_header                X-Real-IP         $remote_addr;
		proxy_set_header                X-Forwarded-For   $proxy_add_x_forwarded_for;
		proxy_set_header                Host              $http_host;
	  }

	  #reverse proxy for cache
          # location ~* \.(gif|jpg|jpeg)$ {
          location ^~ /agile/javax.faces.resource/ {
	  	proxy_pass 			http://localhost:9080;
		proxy_redirect 		        http://localhost:9080/ http://$host:$server_port/;
		port_in_redirect 	        off;
		
                #this is where cached stuff will be saved
		root 				D:/mping/devel/temp/cache;

		add_header	  		Reverse-Proxy 	        true;
		proxy_set_header                X-Real-IP 		$remote_addr;
		proxy_set_header                X-Forwarded-For $       proxy_add_x_forwarded_for;
		proxy_set_header                Host 			$http_host;
	  }


	}

}