How to get URL connection using proxy in java?

Question

I am trying to create URL connection using a proxy at run time. My code is below:

Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress("192.0.2.100", 80));
HttpURLConnection connection =
    (HttpURLConnection)new URL("http://abc.example.com").openConnection(proxy);

But this is not working. Anybody know why?

Thank you guys it worked. i needed to configure connection request. connection.setDoOutput(true); connection.setRequestProperty("Content-type", "text/xml"); connection.setRequestProperty("Accept", "text/xml, application/xml"); connection.setRequestMethod("POST"); — dku.rajkumar, Nov 22 '11 at 11:33
You can and should post your solution as an answer to this question(which you can accept later). — oers, Dec 19 '11 at 12:03

score 17 · Accepted Answer · edited Aug 14 '18 at 18:50

17

adding answer for the help of future visitors

Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress("192.0.2.100", 80));
HttpURLConnection connection =(HttpURLConnection)new URL("http://abc.example.com").openConnection(proxy);
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setRequestProperty("Content-type", "text/xml");
connection.setRequestProperty("Accept", "text/xml, application/xml");
connection.setRequestMethod("POST");

edited Aug 14 '18 at 18:50

Patrick Mevzek

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answered Dec 19 '11 at 12:27

dku.rajkumar

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Thank you @dku.rajkumar , how can i set user and password here ? – Amol Bais Feb 08 '21 at 11:58

score 3 · Answer 2 · edited Aug 14 '18 at 18:51

dku.rajkumar's way doesn't work with me.

I try this and it work. But it takes double time.

Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress("192.0.2.100", 80));

    HttpURLConnection connection =
        (HttpURLConnection)new URL("http://abc.example.com").openConnection(proxy);
    ((HttpURLConnection)new URL("http://abc.example.com").openConnection(proxy)).getInputStream();

System.out.println(connection.usingProxy());

the result is true

without ((HttpURLConnection)new URL("http://abc.example.com").openConnection(proxy)).getInputStream();

the result is false

How to get URL connection using proxy in java?

2 Answers2

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