LoginClient

最新推荐文章于 2022-07-21 10:18:04 发布

转载最新推荐文章于 2022-07-21 10:18:04 发布 · 322 阅读

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CC 4.0 BY-SA版权

原文链接：https://my.oschina.net/u/2329247/blog/389399

文章标签：

#java

package com.tz.util.screen;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;

/**
* 客服端通过键盘录入用户名服务端对这个用户校验如果该用户存在，在服务端显示xxx，已登录如果该用户存在，在服务端显示xxx，尝试登陆
* 并在客服端显示xxx，该用户不存在。最多登录三次
*
* @author Administrator
*
*/

public class LoginClient {
public static void main(String[] args) throws Exception, Exception {
  Socket s = new Socket("192.168.1.254", 10007);
  BufferedReader bufr = new BufferedReader(new InputStreamReader(
    System.in));
  PrintWriter out = new PrintWriter(s.getOutputStream(), true);
  BufferedReader bufIn = new BufferedReader(new InputStreamReader(
    s.getInputStream()));

  for (int i = 0; i < 3; i++) {
   String line = bufr.readLine();
   if (line == null) {
    break;
   }

   out.println(line);
   String info = bufIn.readLine();
   System.out.println(info);
   if (info.contains("")) {
    break;
   }
  }
  bufr.close();
  s.close();
}
}

class UserThread implements Runnable {
private Socket s;

UserThread(Socket s) {
this.s = s;
}

@Override
public void run() {
  String ip = s.getInetAddress().getHostAddress();
  System.out.println(ip + "连接");
  try {
   for (int i = 0; i < 3; i++) {
    BufferedReader bufIn = new BufferedReader(
      new InputStreamReader(s.getInputStream()));
    String name = bufIn.readLine();
    BufferedReader bufr = new BufferedReader(new FileReader(
      "use.txt"));
    String line = null;
    boolean flag = false;
    PrintWriter out = new PrintWriter(s.getOutputStream(), true);
    while ((line = bufr.readLine()) != null) {
     if (line.equals(name)) {
      flag = true;
      break;
     }
    }
    if (name == null) {
     break;
    }
    if (flag) {
     System.out.println(name + "已登录");
     out.println(name + "欢迎");
    } else {
     System.out.println(name + "尝试登录");
     out.println(name + "暴力");
    }
   }
   s.close();
  } catch (Exception e) {
   // TODO: handle exception
  }
}

}

class LoginServer {
public static void main(String[] args) throws Exception {
  ServerSocket ss = new ServerSocket(10007);
  while (true) {
   Socket s = ss.accept();
   new Thread(new UserThread(s)).start();
  }
}
}

转载于:https://my.oschina.net/u/2329247/blog/389399