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Java

Receive Text from a Socket into a StringBuilder

See more Socket/SSL/TLS Examples

Demonstrates Socket.ReceiveSb, which receives text, decodes it using StringCharset, and appends it to a StringBuilder.

Background. Text send and receive operations encode and decode bytes using the StringCharset property. For plain ASCII or UTF-8 protocols, setting StringCharset to utf-8 is a safe default.

Chilkat Java Downloads

Java
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[])
  {
    boolean success = false;

    CkSocket socket = new CkSocket();

    //  Connect to the server using TLS.  The 3rd argument enables the TLS handshake after the TCP
    //  connection succeeds; the 4th is the maximum time to wait, in milliseconds.
    boolean bTls = true;
    int maxWaitMs = 5000;
    success = socket.Connect("example.com",5000,bTls,maxWaitMs);
    if (success == false) {
        System.out.println(socket.lastErrorText());
        return;
        }

    //  StringCharset controls the character encoding used when sending and receiving text.
    socket.put_StringCharset("utf-8");
    //  Send a request using a simple application-defined text protocol in which each message ends with a
    //  CRLF.
    String command = "STATUS\r\n";
    success = socket.SendString(command);
    if (success == false) {
        System.out.println(socket.lastErrorText());
        return;
        }

    //  Receive text and append it to a StringBuilder, decoding using StringCharset.
    CkStringBuilder sb = new CkStringBuilder();
    success = socket.ReceiveSb(sb);
    if (success == false) {
        System.out.println(socket.lastErrorText());
        return;
        }

    String responseText = sb.getAsString();
    if (sb.get_LastMethodSuccess() == false) {
        System.out.println(sb.lastErrorText());
        return;
        }

    System.out.println(responseText);
  }
}