HTTPServer Post parameters

Question

Am writing a service using the HTTPServer provided by com.sun.net.httpserver.HttpServer package. I need to send some sizable data as a byte stream to this service (say a million integers).

I have almost searched all the examples available, all point to sending a small GET request in the URL. I need to know how to send the data as a POST request. Also is there any limit on the data that can be sent?

Answer 1

Rather than persistent URL connection in the answer above, I would recommend using Apache HTTPClient libraries (if you are not using Spring for applet-servlet communication)

http://hc.apache.org/httpclient-3.x/

In this you can build a client and send a serialized object (for instance serialised to JSON string: https://code.google.com/p/google-gson/ ) as POST request over HTTP to your server:

public HttpResponse sendStuff (args) {
    HttpPost post = null;
    try {
        HttpClient client = HttpClientBuilder.create().build();

        post = new HttpPost(servletUrl);
        List<NameValuePair> params = new ArrayList<NameValuePair>();
        params.add(new BasicNameValuePair(<nameString>, <valueString>));

        post.setEntity(new UrlEncodedFormEntity(params));

        HttpResponse response = client.execute(post);
        response.getStatusLine().getStatusCode();
        return response;
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

However Spring saves you a lot of time and hassle so I would recommend to check it out