007socket基本使用

最新推荐文章于 2025-07-02 09:39:35 发布

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本文介绍了一个使用Java进行网络编程的具体实例，包括客户端和服务端的实现。客户端通过Socket连接到本地服务器，发送并接收消息，而服务端则监听指定端口，接受连接请求，并对每个连接创建新的线程进行处理。此外，还涉及了文件读取和字符串匹配的逻辑。


package sock;

import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;

public class MySock7 {
    public static void main(String[] args) throws Exception {
        Socket socket = new Socket("127.0.0.1", 32112
        );

        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
        BufferedReader bufferedReader1 = new BufferedReader(new InputStreamReader(socket.getInputStream()));
        PrintWriter printWriter = new PrintWriter(socket.getOutputStream(), true);
        String line = null;
        for (int i = 0; i < 3; i++) {
            String readLine = bufferedReader.readLine();
            if (readLine == null) {
                break;

            }

            printWriter.println(readLine);
            String msg = bufferedReader1.readLine();

            System.out.println(msg);
            if (msg.contains("欢迎")) {
                break;
            }
        }

        bufferedReader.close();
        socket.close();
    }
}

class MySerd7 {
    public static void main(String[] args) throws Exception {
        ServerSocket serverSocket = new ServerSocket(32112);
        while (true) {
            Socket accept = serverSocket.accept();
            new Thread(new MySerThead(accept)).start();
        }
    }
}


class MySerThead implements Runnable {
    Socket socket;

    public MySerThead(Socket socket) {
        this.socket = socket;
    }

    @Override
    public void run() {
        String ip = socket.getInetAddress().getHostAddress();
        try {
//            System.out.println("ip = " + ip);
            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(socket.getInputStream()
            ));

            String name=null;

            PrintWriter printWriter = new PrintWriter(socket.getOutputStream(), true);
            String line =null;
            boolean flag = false;
            for (int i = 0; i < 3; i++) {
                BufferedReader bufferedReader1 = new BufferedReader(new FileReader("d:/in.txt"));

                name = bufferedReader.readLine();//证明是一个对象。
                if (name == null) {
                    break;
                }
                System.out.println("name = " + name);
                while ((line = bufferedReader1.readLine()) != null) {
                    System.out.println("line = " + line);
                    if (line.equals(name)) {
                        System.out.println(name+"登陆成功");
                        printWriter.println(name+"：欢迎你的到来！");
                        flag = true;

                        break;

                    }

                }
                if (!flag) {
                    System.out.println(name+"：尝试登陆");
                    printWriter.println(name+":用户名不存在");
                }
                bufferedReader1.close();

            }
//            if(!flag)
//            printWriter.println(name+":你搞砸了！");
            socket.close();



        } catch (IOException e) {
            e.printStackTrace();
            throw new RuntimeException(ip+":you lose");
        } finally {
        }
    }
}