How to set 'Referer' HTTP header using Apache HttpComponents HttpClient

Question

I wrote php curl to request some data from my API server, and now I want to develop a JSP to request the data from the same API server.

The problem comes when my API server need http referer to check if the request come from a valid url.

My original PHP is:

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://www.example.com/2');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_REFERER, 'http://www.example.com/1');
$html = curl_exec($ch);

... then my api server get the referer url with

var_dump($_SERVER['HTTP_REFERER'])

How do I use Apache HttpComponents HttpClient to set the Referer header?

Are you asking 'how can I set the HTTP Referer header using a Java HTTP library?' — Greg Kopff
– Greg Kopff, Commented Aug 12, 2015 at 4:12
that is what i want .. i just don't know how to describe it .. and can send it to my api server — kreamik
– kreamik, Commented Aug 12, 2015 at 4:13

chengpohi · Accepted Answer · 2015-08-12 04:44:59Z

4

HttpGet request = new HttpGet("http://www.example.com/2")

request.addHeader("Referer", "http://www.example.com/1")

HttpResponse response = HttpClientBuilder.create().build().execute(request)

You can set header by using AbstractHttpMessage addHeader

edited Aug 12, 2015 at 4:44

answered Aug 12, 2015 at 4:36

chengpohi

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2 Comments

Greg Kopff Over a year ago

I believe the header as transmitted on the wire is called Referer, not HTTP_REFERER.

chengpohi Over a year ago

@GregKopff Yeah, Thanks.

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