java socket(5)

              

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

public class Receiver {
    private int port = 8000;
    private ServerSocket serverSocket;
    private static int stopWay = 1; // 结束通信的方式
    private final int NATURAL_STOP = 1; // 自然结束
    private final int SUDDEN_STOP = 2; // 突然终止程序
    private final int SOCKET_STOP = 3; // 关闭Socket，再结束程序
    private final int INPUT_STOP = 4; // 关闭输入流，再结束程序
    private final int SERVERSOCKET_STOP = 5; // 关闭ServerSocket，再结束程序

    public Receiver() throws IOException {
        serverSocket = new ServerSocket(port);
        System.out.println("服务器已经启动");
    }

    private BufferedReader getReader(Socket socket) throws IOException {
        InputStream socketIn = socket.getInputStream();
        return new BufferedReader(new InputStreamReader(socketIn));
    }

    public void receive() throws Exception {
        Socket socket = null;
        socket = serverSocket.accept();
        BufferedReader br = getReader(socket);

        for (int i = 0; i < 20; i++) {
            String msg = br.readLine();
            System.out.println("receive:" + msg);
            Thread.sleep(1000);
            if (i == 2) { // 终止程序，结束通信
                if (stopWay == SUDDEN_STOP) {
                    System.out.println("突然终止程序");
                    System.exit(0);
                } else if (stopWay == SOCKET_STOP) {
                    System.out.println("关闭Socket并终止程序");
                    socket.close();
                    break;
                } else if (stopWay == INPUT_STOP) {
                    System.out.println("关闭输入流并终止程序");
                    socket.shutdownInput();
                    break;
                } else if (stopWay == SERVERSOCKET_STOP) {
                    System.out.println("关闭ServerSocket并终止程序");
                    serverSocket.close();
                    break;
                }
            }
        }

        if (stopWay == NATURAL_STOP) {
            socket.close();
            serverSocket.close();
        }
    }

    public static void main(String args[]) throws Exception {
        if (args.length > 0)
            stopWay = Integer.parseInt(args[0]);
        new Receiver().receive();
    }
}

/****************************************************
 * 作者：孙卫琴 * 来源：<<Java网络编程精解>> * 技术支持网址：www.javathinker.org *
 ***************************************************/

 

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

public class Sender {
    private String host = "localhost";
    private int port = 8000;
    private Socket socket;
    private static int stopWay = 1; // 结束通信的方式
    private final int NATURAL_STOP = 1; // 自然结束
    private final int SUDDEN_STOP = 2; // 突然终止程序
    private final int SOCKET_STOP = 3; // 关闭Socket，再结束程序
    private final int OUTPUT_STOP = 4; // 关闭输出流，再结束程序

    public Sender() throws IOException {
        socket = new Socket(host, port);
    }

    public static void main(String args[]) throws Exception {
        if (args.length > 0)
            stopWay = Integer.parseInt(args[0]);
        new Sender().send();
    }

    private PrintWriter getWriter(Socket socket) throws IOException {
        OutputStream socketOut = socket.getOutputStream();
        return new PrintWriter(socketOut, true);
    }

    public void send() throws Exception {
        PrintWriter pw = getWriter(socket);
        for (int i = 0; i < 20; i++) {
            String msg = "hello_" + i;
            pw.println(msg);
            System.out.println("send:" + msg);
            Thread.sleep(500);
            if (i == 2) { // 终止程序，结束通信
                if (stopWay == SUDDEN_STOP) {
                    System.out.println("突然终止程序");
                    System.exit(0);
                } else if (stopWay == SOCKET_STOP) {
                    System.out.println("关闭Socket并终止程序");
                    socket.close();
                    break;
                } else if (stopWay == OUTPUT_STOP) {
                    socket.shutdownOutput();
                    System.out.println("关闭输出流并终止程序");
                    break;
                }
            }
        }

        if (stopWay == NATURAL_STOP) {
            socket.close();
        }
    }
}

/****************************************************
 * 作者：孙卫琴 * 来源：<<Java网络编程精解>> * 技术支持网址：www.javathinker.org *
 ***************************************************/