java 网络编程-TCP-双向登录

Posted 2022-09-02

TCP:模拟登录 :双向

服务器端

public class tcp 

public static void main(String[]args) throws IOException

    System.out.println("服务器启动中...");

    ServerSocket server=new ServerSocket(8888);

    Socket client=server.accept();

    DataInputStream dis=new DataInputStream(client.getInputStream());

    String datas=dis.readUTF();
    String uname="";
    String password="";

    String[] data=datas.split("&");
    System.out.println("用户名为:"+data[0]+"密码为:"+data[1]);
    uname=data[0];
    password=data[1];

    //输出
    DataOutputStream dos= new DataOutputStream(client.getOutputStream());

    if(uname.equals("杜雨龙")&&password.equals("你最帅"))
    

        dos.writeUTF("登录成功");
    else
    
        dos.writeUTF("登录失败");
    
    dis.close();
    client.close();
    server.close();

客户端:

public class tcp2 

public static void main(String[]args) throws IOException

    System.out.println("发送端启动中");
    BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
    System.out.println("请输入用户名");
    String name =br.readLine();
    System.out.println("请输入密码");
    String password =br.readLine();

    Socket client=new Socket("localhost",8888);

    DataOutputStream dos= new DataOutputStream(client.getOutputStream());

    dos.writeUTF(name+"&"+password);
    dos.flush();

    DataInputStream dis=new DataInputStream(client.getInputStream());
    String result=dis.readUTF();
    System.out.println(result);

    dos.close();
    client.close();