Mega Code Archive

 

Categories / Java / Network Protocol

 

URL connection and proxy

import java.net.HttpURLConnection; import java.net.URL; import java.util.Properties; public class Main{   public static void main(String s[]) throws Exception{     try {       Properties systemSettings = System.getProperties();       systemSettings.put("proxySet", "true");       systemSettings.put("http.proxyHost", "proxy.mycompany.local");       systemSettings.put("http.proxyPort", "80");       URL u = new URL("http://www.java.com");       HttpURLConnection con = (HttpURLConnection) u.openConnection();       sun.misc.BASE64Encoder encoder = new sun.misc.BASE64Encoder();       String encodedUserPwd = encoder.encode("domain\\username:password".getBytes());       con.setRequestProperty("Proxy-Authorization", "Basic " + encodedUserPwd);       con.setRequestMethod("HEAD");       System.out.println(con.getResponseCode() + " : " + con.getResponseMessage());       System.out.println(con.getResponseCode() == HttpURLConnection.HTTP_OK);     } catch (Exception e) {       e.printStackTrace();       System.out.println(false);     }   } }