代码如下:

package ClientPack;import java.io.IOException;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;public class ClientDemo {public static void main(String[] args) throws IOException {
//        Socket s = new Socket(InetAddress.getByName("192.168.1.123"),10000);Socket s = new Socket("192.168.1.123",12345);OutputStream os = s.getOutputStream();os.write("hello,tcp,我来了".getBytes());s.close();}
}

代码如下:

package ClientPack;import java.io.IOException;
import java.io.InputStream;
import java.net.ServerSocket;
import java.net.Socket;public class ServerDemo {public static void main(String[] args) throws IOException {ServerSocket ss = new ServerSocket(12345);Socket s = ss.accept();InputStream is = s.getInputStream();byte[] bys = new byte[1024];int len = is.read(bys);String data = new String(bys,0,len);System.out.println("数据是"+data);s.close();ss.close();}
}