Apache HTTP Client Post appears to work but variable not received

Question

I have the following code that executes a httpclient post request

    public void upload() throws Exception{

    //HTTP POST Service
    try{
        HttpClient httpclient = HttpClientBuilder.create().build();         
        URI uri = new URIBuilder()
        .setScheme("http")
        .setHost("www.mysite.com")
        .setPath("/mypage.php")
        .setParameter("Username", userID)
        .setParameter("Password", password)
        .build();
        HttpPost httppost = new HttpPost(uri);
        httpclient.execute(httppost);

        BasicHttpContext localContext = new BasicHttpContext();
        HttpResponse response = httpclient.execute(httppost, localContext);
        HttpUriRequest currentReq = (HttpUriRequest) localContext.getAttribute(ExecutionContext.HTTP_REQUEST);
        HttpHost currentHost = (HttpHost)localContext.getAttribute(ExecutionContext.HTTP_TARGET_HOST);
        String currentUrl = currentHost.toURI() + currentReq.getURI();        
        System.out.println(currentUrl);
        System.out.println(response);
        HttpEntity httpEntity = response.getEntity();
        String str = "";
        if (httpEntity != null) {
            str = EntityUtils.toString(httpEntity);
            System.out.println(str);
        }

    }catch (Exception e) {
        e.printStackTrace();
    }
}

which returns

HTTP/1.1 200 OK [Date: Sat, 11 Jan 2014 16:17:22 GMT, Server: Apache, Expires: Thu, 19 Nov 1981 08:52:00 GMT, Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0, Pragma: no-cache, Vary: Accept-Encoding, Keep-Alive: timeout=10, max=30, Content-Type: text/html, Via: 1.1 NDC1-B2-CE01, Connection: keep-alive]

As if everything had worked fine but my php script on the other end doesn't seem to pick up the variable.

I've tried something as simple as:

<?php
   error_log($_POST["Username"]);
?>

But get an index undefined error printed

score 1 · Accepted Answer · answered Jan 11 '14 at 16:55

You are setting the query parameters of the URI which builds a URI your URI like http://www.mysite.com/mypage.php?Username=userId&Password=pass

You need to set the parameters of the HttpPost with NameValuePair.

HttpPost post = new HttpPost("http://www.mysite.com/mypage.php");
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("Username", userId));
params.add(new BasicNameValuePair("Password", pass));
post.setEntity(new UrlEncodedFormEntity(params));
HttpResponse response = post.execute(post);

Additionally, I would recommend handling authentication with an Authorization header, such as Basic authentication as well as sending credentials over HTTPS.

hmm gives me the same error as before? Could you post an example using basic authentication? — baarkerlounger, Jan 11 '14 at 17:03
You can then retrieve the username and pass server-side with $_SERVER['PHP_AUTH_USER'] and $_SERVER['PHP_AUTH_PW'] — Windwaker, Jan 11 '14 at 17:09

Apache HTTP Client Post appears to work but variable not received

1 Answers1