Cannot get 'location' header in response using HttpClient

Question

The location header is there, I can see it in browser:

I'm using org.apache.httpcomponents.httpclient to send http request with cookie:

```

URI uri = new URIBuilder().setScheme("https").setHost("api.weibo.com").setPath("/oauth2/authorize").setParameter("client_id","3099336849").setParameter("redirect_uri","http://45.78.24.83/authorize").setParameter("response_type", "code").build();
HttpGet req1 = new HttpGet(uri);
RequestConfig config = RequestConfig.custom().setRedirectsEnabled(false).build();
req1.setConfig(config);
req1.setHeader("Connection", "keep-alive");
req1.setHeader("Cookie", cookie);
req1.setHeader("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.106 Safari/537.36");
response = httpclient.execute(req1);

```

I googled a lot and tried enable/disable auto redirect,but it doesn't seem to work for me.So can somebody tell me how to get the location header in response just like the browser did?

Answer 1

You cannot see 'location' header, because HttpClient followed that redirect immediately - even before giving you that response.

Try disabling redirect while setting up your HttpClient:

HttpClient instance = HttpClientBuilder.create().disableRedirectHandling().build();

Check this URL and you'll see the Location Header:

URI uri = new URIBuilder().setScheme("https").setHost("www.googlemail.com").setPath("/").build();