JavaIP小練習

一、客戶端

package Ip;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintStream;
import java.net.InetAddress;
import java.net.Socket;


public class iptest {

    public static void main(String[] args) throws IOException {
        // InetAddress ip=InetAddress.getLocalHost();
        try {
            System.out.println("機號:" + InetAddress.getLocalHost().getHostName());
            System.out.println("ip地址爲："+ InetAddress.getLocalHost().getHostAddress());

            Socket socket = new Socket("192.168.16.10", 8880);//此類實現客戶端套接字（也可以就叫“套接字”）。套接字是兩臺機器間通信的端點。 
            OutputStream os = socket.getOutputStream();//返回此套接字的輸出流。
            PrintStream ps = new PrintStream(os);//PrintStream 爲其他輸出流添加了功能，使它們能夠方便地打印各種數據值表示形式
            String info = "我是本機1";
            ps.write(info.getBytes());
            socket.shutdownOutput();//禁用此套接字的輸出流。
            InputStream is = socket.getInputStream();//返回此套接字的輸入流。
            BufferedReader br = new BufferedReader(new InputStreamReader(is));
            String infop;
            while ((infop = br.readLine()) != null) {
                System.out.println(infop);
            }
            ps.close();
            os.close();
            socket.close();
            System.out.println("發送完畢");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

}

二、服務端

package Ip;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintStream;
import java.net.ServerSocket;
import java.net.Socket;

public class tet {
    public static void main(String[] args) {
        try {
            ServerSocket server = new ServerSocket(8880);//此類實現服務器套接字
            while (true) {
                Socket socket = server.accept();//偵聽並接受到此套接字的連接(必須要)。
                InputStream is = socket.getInputStream();//返回此套接字的輸入流。
                BufferedReader br = new BufferedReader(new InputStreamReader(is));
                String info;
                while ((info = br.readLine()) != null) {
                    System.out.println(info);
                }
                socket.shutdownInput();// 此套接字的輸入流置於“流的末尾”。
                OutputStream os = socket.getOutputStream();//返回此套接字的輸出流。
                PrintStream ps = new PrintStream(os);//PrintStream 爲其他輸出流添加了功能，使它們能夠方便地打印各種數據值表示形式
                String reStr = "別刷屏";
                ps.write(reStr.getBytes());
                ps.close();
                os.close();
                is.close();
                server.close();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

}