[Java网络编程基础]TCP发送和接收数据

Posted 2021-06-26 Wecccccccc

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();
    }
}