programming-examples/java/Numerical_Problems/java program to find proxy settings of a System.java
2019-11-15 12:59:38 +01:00

41 lines
1.6 KiB
Java

import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Properties;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.ProxySelector;
import java.net.URI;
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.mycompany1.local");
systemSettings.put("http.proxyPort", "80");
URL u = new URL("http://www.google.com");
HttpURLConnection con = (HttpURLConnection)
u.openConnection();
System.out.println(con.getResponseCode() + " : " +con.getResponseMessage());
System.out.println(con.getResponseCode() == HttpURLConnection.HTTP_OK);
}
catch (Exception e) {
e.printStackTrace();
System.out.println(false);
}
System.setProperty("java.net.useSystemProxies",
"true");
Proxy proxy = (Proxy) ProxySelector.getDefault().
select(new URI("http://www.yahoo.com/")).iterator().next();
System.out.println("proxy hostname : " + proxy.type());
InetSocketAddress addr = (InetSocketAddress)
proxy.address();
if (addr == null) {
System.out.println("No Proxy");
} else {
System.out.println("proxy hostname : " + addr.getHostName());
System.out.println("proxy port : "+ addr.getPort());
}
}
}