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TCP/IP Socket Connect to Remote Host:Port

Demonstrates how to create a TCP/IP socket, connect to a remote host:port, and receive a "Hello World!" message.

 Chilkat Java Library Downloads for Windows, Linux, and MAC OS X

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[])
  {
    CkSocket socket = new CkSocket();

    boolean success;
    success = socket.UnlockComponent("Anything for 30-day trial");
    if (success != true) {
        System.out.println("Failed to unlock component");
        return;
    }

    //  Connect to port 5555 of localhost.
    //  The string "localhost" is for testing on a single computer.
    //  It would typically be replaced with an IP hostname, such
    //  as "www.chilkatsoft.com".
    boolean ssl;
    ssl = false;
    int maxWaitMillisec;
    maxWaitMillisec = 20000;
    success = socket.Connect("localhost",5555,ssl,maxWaitMillisec);
    if (success != true) {
        System.out.println(socket.lastErrorText());
        return;
    }

    //  Set maximum timeouts for reading an writing (in millisec)
    socket.put_MaxReadIdleMs(10000);
    socket.put_MaxSendIdleMs(10000);

    //  The server (in this example) is going to send a "Hello World!"
    //  message.  Read it:
    String receivedMsg;
    receivedMsg = socket.receiveString();
    if (receivedMsg == null ) {
        System.out.println(socket.lastErrorText());
        return;
    }

    //  Close the connection with the server
    //  Wait a max of 20 seconds (20000 millsec)
    socket.Close(20000);

    System.out.println(receivedMsg);
  }
}

 

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