在c++中使用TCP进行远程客户端和服务器通信

#include <iostream>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <cstring>

int main() {
    // 创建socket
    int clientSocket = socket(AF_INET, SOCK_STREAM, 0);
    if (clientSocket == -1) {
        std::cerr << "Failed to create socket." << std::endl;
        return -1;
    }

    // 设置服务器地址和端口
    sockaddr_in serverAddress{};
    serverAddress.sin_family = AF_INET;
    serverAddress.sin_port = htons(8080);  // 服务器端口
    if (inet_pton(AF_INET, "127.0.0.1", &(serverAddress.sin_addr)) <= 0) {
        std::cerr << "Invalid address/Address not supported." << std::endl;
        return -1;
    }

    // 连接服务器
    if (connect(clientSocket, (struct sockaddr*)&serverAddress, sizeof(serverAddress)) < 0) {
        std::cerr << "Connection failed." << std::endl;
        return -1;
    }

    // 发送数据
    const char* message = "Hello, server!";
    if (send(clientSocket, message, strlen(message), 0) < 0) {
        std::cerr << "Send failed." << std::endl;
        return -1;
    }

    // 接收服务器响应
    char buffer[1024] = {0};
    if (recv(clientSocket, buffer, sizeof(buffer), 0) < 0) {
        std::cerr << "Receive failed." << std::endl;
        return -1;
    }

    std::cout << "Server response: " << buffer << std::endl;

    // 关闭socket
    close(clientSocket);

    return 0;
}