(Java) HTTPS Upload File to Web Server

Uploads a file to a web server using HTTPS.

Chilkat Java Downloads Java Libs for Windows, MacOS, Linux, Alpine Linux, Solaris Java Libs for Android

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // The ContentType, HttpVerb, and Path properties should
    // always be explicitly set.
    CkHttpRequest req = new CkHttpRequest();
    req.put_HttpVerb("POST");
    req.put_Path("/receiveMyUpload.aspx");
    req.put_ContentType("multipart/form-data");

    req.AddStringForUpload("fileA","fileA.txt","This is the contents of file A","utf-8");
    boolean success = req.AddFileForUpload("starfish.jpg","qa_data/jpg/starfish.jpg");
    if (success != true) {
        System.out.println(req.lastErrorText());
        return;
        }

    CkHttp http = new CkHttp();

    // ----------------------------------------------------------------------------
    // IMPORTANT:
    // HTTP uploads require a counterpart implementation on the server, written in any desired language
    // such as C#, Classic ASP, PHP, etc., which consumes the upload being sent.
    // See: ASP.NET Receive Upload
    // ----------------------------------------------------------------------------

    // Do the upload.
    boolean useSslTls = true;
    CkHttpResponse resp = http.SynchronousRequest("www.example.com",443,useSslTls,req);
    if (http.get_LastMethodSuccess() != true) {
        System.out.println(http.lastErrorText());
        return;
        }

    System.out.println("response status code = " + resp.get_StatusCode());
    System.out.println("response body:");
    System.out.println(resp.bodyStr());
  }
}