httpconnection - Java HttpUrlConnection throws Connection Refused -

i know there several question regarding topic did't find answer in of them.

i'm trying open connection local server keep getting connection refused.

i have server running , tested connection browser , google app called postman , works.

it's failing when opening connection if there nothing connect to. or maybe blocking connection? tested firewall , antivirus down, no luck.

testing in postman url returns user should...

if replace url "http://www.google.com" works fine.

here code:

import java.io.bufferedreader; import java.io.ioexception; import java.io.inputstreamreader; import java.net.httpurlconnection; import java.net.malformedurlexception; import java.net.url;  /**  *  * @author gabriel  */ public class httpconnection {      public httpconnection() {      }      public void makerequest() throws malformedurlexception, ioexception {          string url = "http://localhost:8000/users/1";      url obj = new url(url);     httpurlconnection con = (httpurlconnection) obj.openconnection();     // optional default     con.setrequestmethod("get");      //add request header     con.setrequestproperty("user-agent", "mozilla/5.0 (windows nt 6.1; wow64) applewebkit/537.36 (khtml, gecko) chrome/37.0.2062.120 safari/537.36");         con.setrequestproperty("accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8");         con.setrequestproperty("accept-encoding", "gzip,deflate,sdch");         con.setrequestproperty("accept-language", "en-us,en;q=0.8,es;q=0.6");         con.setrequestproperty("connection", "keep-alive");         con.setrequestproperty("host", "localhost:8000");      int responsecode = con.getresponsecode();     system.out.println("\nsending 'get' request url : " + url);     system.out.println("response code : " + responsecode);      bufferedreader in = new bufferedreader(new inputstreamreader(con.getinputstream()));     string inputline;     stringbuffer response = new stringbuffer();      while ((inputline = in.readline()) != null) {             response.append(inputline);     }     in.close();      //print result     system.out.println(response.tostring());       } } 

i have similar code working, request header lot simpler. just:

con.setrequestproperty("user-agent", "mozilla/5.0"); 

if simplifying header not help, capture traffic when using browser fiddler , making request that.