SFML 网络 Server/Client

Question

我刚开始学习 SFML 网络....我正在制作服务器客户端聊天框...当我运行 PC 上的客户端程序连接到服务器时，它也是运行在我的电脑上.....但问题是我笔记本电脑上的客户端程序没有连接到我电脑上的服务器程序....这是服务器的代码：

void main()
{
cout << "Server Running" << endl;
TcpListener listener;
SocketSelector selector;
bool done = false;
vector<TcpSocket*>clients;
listener.getLocalPort();
listener.listen(2000);
selector.add(listener);

while (!done)
{
    if (selector.wait())
    {
        if (selector.isReady(listener))
        {
            TcpSocket *socket = new TcpSocket;

            listener.accept(*socket);
            Packet packet;
            string id;
            string status;
            if (socket->receive(packet) == Socket::Done)
                packet >> id>>status;
            cout << id << " has "<<status;
            clients.push_back(socket);
            selector.add(*socket);
        }
        else
        {
            for (int i = 0;i < clients.size();i++)
            {
                if (selector.isReady(*clients[i]))
                {
                    Packet packet, sendpacket;
                    if (clients[i]->receive(packet) == Socket::Done)
                    {
                        string text;
                        packet >> text;
                        sendpacket << text;
                        for (int j = 0;j < clients.size();j++)
                        {
                            if (i != j)
                            {
                                clients[j]->send(sendpacket);
                            }
                        }
                    }
                }
            }
        }
    }
}

for (vector<TcpSocket*>::iterator it = clients.begin();it != clients.end();it++)
    delete *it;
}

客户代码：

#include<SFML/Network.hpp>
#include<SFML/Graphics.hpp>
#include<iostream>
#include<string>
#include<vector>
#include<conio.h>

using namespace sf;
using namespace std;

void main()
{
IpAddress ip = IpAddress::getLocalAddress();
cout << ip << endl;

TcpSocket socket;
bool done = false;

string id;
string status = "connected";
string text = "";

cout << "Enter online id: ";
cin >> id;

socket.connect(ip, 2000);

Packet packet;

packet << id<< status;
socket.send(packet);
socket.setBlocking(false);

RenderWindow window(VideoMode(800, 600, 32), id);
vector<Text> chat;

Font font;
font.loadFromFile("Data/font.ttf");

while (window.isOpen())
{
    Event event;
    while (window.pollEvent(event))
    {
        switch (event.type)
        {
        case Event::Closed:
            window.close();
            break;
        case Event::KeyPressed:
            if (event.key.code == Keyboard::Escape)
            {
                text.clear();
            }               
            else if (event.key.code == Keyboard::Return)
            {
                Packet packet;
                packet << id + ":" + text;
                socket.send(packet);
                Text displaytext(text, font, 20);
                displaytext.setColor(Color::Green);
                chat.push_back(displaytext);
                text = "";
            }
            break;
        case Event::TextEntered:
            if (event.text.unicode == '\b' && text.size() >0)
            {
                text.erase(text.size() - 1, 1);
            }
            else
            text += event.text.unicode;
            break;
        }
    }

    Packet packet;
    socket.receive(packet);
    string temptext;
    if (packet >> temptext)
    {
        Text displaytext(temptext, font, 20);
        displaytext.setColor(Color::Blue);
        chat.push_back(displaytext);
    }
    int i = 0;
    for (i;i<chat.size();i++)
    {
        chat[i].setPosition(0, i * 20);
        window.draw(chat[i]);
    }

    Text drawtext(text, font, 20);
    drawtext.setColor(Color::Red);
    drawtext.setPosition(0, i * 20);
    window.draw(drawtext);

    window.display();
    window.clear();
}

}

我需要知道我的笔记本电脑客户端将如何找到并连接到服务器 (pc)？

Answer 1

您需要获取服务器的 IP 地址。现在，您正在向客户端提供客户端 IP 地址，这是行不通的。

对于初学者，您可以查找它并对其进行硬编码，但在较长的运行中，您将需要找到一种使其更具动态性的方法。

最后一件事：没有 void main() 这样的东西。那是未定义的行为，摆脱它。使用有效的入口点，很可能您想使用 int main().

SFML 网络 Server/Client

SFML networking Server/Client

c++

sockets

networking

client-server

sfml