How to Achieve cURL Functionality in Java for Authentication?

cURL Equivalent in JAVA

This question seeks to find a JAVA library that is comparable to cURL, a PHP function, for handling HTTP transfers in an authentication component. The questioner provides a sample cURL code snippet they aim to replicate in JAVA.

The most appropriate JAVA library for this task is HttpsURLConnection. Here's a simplified example that mimics the cURL code provided:

<code class="java">import java.net.URL;
import java.net.HttpURLConnection;
import java.io.OutputStream;

public class CurlEquivalent {

    public static void main(String[] args) throws Exception {
        String url = "https://" + AUTH_SERVER + "/auth/authenticate.asp?pt1=$uname&amp;pt2=$pass&amp;pt4=full";

        HttpURLConnection con = (HttpURLConnection) new URL(url).openConnection();
        con.setRequestMethod("POST");
        OutputStream out = con.getOutputStream();
        out.write("LOGIN".getBytes("UTF-8"));
        out.close();

        con.getInputStream().close();
    }
}</code>

This code snippet establishes an HTTP connection to the specified URL, sets the request method to POST, writes the request parameters to the output stream, and closes the output stream. It then reads the response from the server and closes the input stream.

While this example does not include exception handling, it provides the essential functionality needed to perform HTTP transfers similar to the cURL code provided.

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