TCP协议

package a04;

import java.io.IOException;
import java.io.OutputStream;
import java.net.Socket;

public class Client {
    public static void main(String[] args) throws IOException {
        /*
        tcp协议,发送数据
         */
        //1.创建socket对象(快递公司)
        Socket socket=new Socket("10.61.193.69",10000);

        //2.发送数据

        OutputStream os=socket.getOutputStream();

        //写出数据
        os.write("你好! hello".getBytes());
        //释放资源
        os.close();
        socket.close();
    }
}
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package a04;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;

public class Server {
    public static void main(String[] args) throws IOException {
        //tcp协议,接收数据

        //1.创建serversocket对象(快递公司)
        ServerSocket ss=new ServerSocket(10000);

        //2.监听客户端链接
        Socket socket=ss.accept();
        //3.获取输入流数据
        BufferedReader br=new BufferedReader(new InputStreamReader(socket.getInputStream()));

        int b;
        while((b=br.read())!=-1){
            System.out.print((char)b);
        }
        //4.释放资源
        br.close();
        ss.close();
    }
}