Handling GET requests - Apache HttpClient vs java.net.HttpURLConnection

Question

Does the Apache HttpClient handle GET requests differently compared to java.net.HttpURLConnection?

I tried making a GET request to a URL which returns a redirect using both methods. While the response code from HttpURLConnection returns a 302 as expected, making the same call using HttpClient results in a 200.

Below is my code:

// Using Apache HttpClient
HttpClient client = HttpClientBuilder.create().setRedirectStrategy(new LaxRedirectStrategy()).build();
HttpGet request = new HttpGet(authUrl);
HttpResponse response = client.execute(request);
int responseCode = response.getStatusLine().getStatusCode();  //Returns 200

// Using java.net.HttpURLConnection
URL obj = new URL(authUrl);
HttpURLConnection conn = (HttpURLConnection) obj.openConnection();
int responseCode = conn.getResponseCode();  //Returns 302

This is my first time using Apache HttpClient, so my code might be wrong.

Thanks.

Look at the headers for "Location" - you can get the redirect from that. for (Header header : response.getHeaders("Location")) { redirectLink = header.getValue(); } — Ascalonian
– Ascalonian, Commented Mar 14, 2016 at 4:01
I've tried that. It doesn't have any "Location" header because the response is 200, and not a 302. — drunkenfist
– drunkenfist, Commented Mar 14, 2016 at 4:26

Community · Accepted Answer · 2017-05-23 11:59:52Z

1

Handling GET requests - Apache HttpClient vs java.net.HttpURLConnection If you need to walk through a chain of redirects, you should set redirects disabled for HttpPost/HttpGet (HttpRequestBase), for example:

public void disableRedirect(HttpRequestBase request) {
    request.setConfig(RequestConfig.custom().setRedirectsEnabled(false).build());
}

After that you will get expected 302 response code with response.getStatusLine().getStatusCode() and may read headers as @Ascalonian said

edited May 23, 2017 at 11:59

CommunityBot

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answered May 11, 2016 at 13:51

JakeVR

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ok2c · Accepted Answer · 2016-03-15 08:27:36Z

0

Try turning off automatic redirect handling. Most likely HttpClient redirects to a location specified in 302 response, while HUC for some reason does not

answered Mar 15, 2016 at 8:27

ok2c

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