通过 TCP (c++） 在结构中发送字符串

我正在研究服务器-客户端结构，我需要在服务器和客户端之间发送字符串，为此，我创建了一个包含 int（数据包类型）和字符串的结构，然后我序列化并通过 tcp 连接发送到客户端，然后反序列化它。

我的问题是我在客户端得到错误的字符串，服务器端的字符串是："PO-1-25-25PO-2-50-50"，但我在客户端得到的字符串是"\x18=$"。

我正在发送的结构（客户端上的结构也相同）

struct Packet {
unsigned int packet_type;
std::string message;
void serialize(char * data) {
    memcpy(data, this, sizeof(Packet));
}
void deserialize(char * data) {
    memcpy(this, data, sizeof(Packet));
}
};

我发送结构的代码：

void sendGameStatePacket(unsigned int receiver){

const unsigned int packet_size = sizeof(Packet);
    char packet_data[packet_size];
    Packet packet;
    packet.packet_type = GAME_STATE;
    packet.message = message;

    packet.serialize(packet_data);
    network->sendToOne(packet_data, packet_size, receiver);
}
void sendToOne(char * packets, int totalSize, unsigned int socketID){
SOCKET currentSocket = sessions[socketID];
int iSendResult;    
iSendResult = NetworkServices::sendMessage(currentSocket, packets,totalSize); 
}
int sendMessage(SOCKET curSocket, char * message, int messageSize)
{
    return send(curSocket, message, messageSize, 0);
}

用于接收结构的客户端代码：

char network_data[MAX_PACKET_SIZE]; //MAX_PACKET_SIZE = 1000000
void AClientGame::update()
{
Packet packet;
int data_length = network->receivePackets(network_data);
unsigned int i = 0;
    while (i < (unsigned int)data_length)
    {
        packet.deserialize(&(network_data[i]));
        i += sizeof(Packet);
        FString message;
        message = packet.message.c_str();
        UE_LOG(LogTemp, Warning, TEXT("Test: %s"), *message);
    }
}
int receivePackets(char * recvbuf)
{
    iResult = NetworkServices::receiveMessage(ConnectSocket, recvbuf, MAX_PACKET_SIZE);
}
int receiveMessage(SOCKET curSocket, char * buffer, int bufSize)
{
    return recv(curSocket, buffer, bufSize, 0);
}

我已经检查了客户端的package.message是"\x18=$"字符串，因此问题不在于从字符串到FString的转换。

我的套接字配置如下：

服务器：

network::ServerNetwork::ServerNetwork(void)
{
    // create WSADATA object
    WSADATA wsaData;
    // our sockets for the server
    ListenSocket = INVALID_SOCKET;
    ClientSocket = INVALID_SOCKET;

    // address info for the server to listen to
    struct addrinfo *result = NULL;
    struct addrinfo hints;
    // Initialize Winsock
    iResult = WSAStartup(MAKEWORD(2, 2), &wsaData);
    if (iResult != 0) {
        printf("WSAStartup failed with error: %dn", iResult);
        exit(1);
    }
    // set address information
    ZeroMemory(&hints, sizeof(hints));
    hints.ai_family = AF_INET;
    hints.ai_socktype = SOCK_STREAM;
    hints.ai_protocol = IPPROTO_TCP;    // TCP connection!!!
    hints.ai_flags = AI_PASSIVE;
    // Resolve the server address and port
    iResult = getaddrinfo(NULL, DEFAULT_PORT, &hints, &result);
    if (iResult != 0) {
        printf("getaddrinfo failed with error: %dn", iResult);
        WSACleanup();
        exit(1);
    }
    // Create a SOCKET for connecting to server
    ListenSocket = socket(result->ai_family, result->ai_socktype, result->ai_protocol);
    if (ListenSocket == INVALID_SOCKET) {
        printf("socket failed with error: %ldn", WSAGetLastError());
        freeaddrinfo(result);
        WSACleanup();
        exit(1);
    }
    // Set the mode of the socket to be nonblocking
    u_long iMode = 1;
    iResult = ioctlsocket(ListenSocket, FIONBIO, &iMode);
    if (iResult == SOCKET_ERROR) {
        printf("ioctlsocket failed with error: %dn", WSAGetLastError());
        closesocket(ListenSocket);
        WSACleanup();
        exit(1);
    }
    // Setup the TCP listening socket
    iResult = bind(ListenSocket, result->ai_addr, (int)result->ai_addrlen);
    if (iResult == SOCKET_ERROR) {
        printf("bind failed with error: %dn", WSAGetLastError());
        freeaddrinfo(result);
        closesocket(ListenSocket);
        WSACleanup();
        exit(1);
    }
    // no longer need address information
    freeaddrinfo(result);
    // start listening for new clients attempting to connect
    iResult = listen(ListenSocket, SOMAXCONN);
    if (iResult == SOCKET_ERROR) {
        printf("listen failed with error: %dn", WSAGetLastError());
        closesocket(ListenSocket);
        WSACleanup();
        exit(1);
    }
}

客户：

ClientNetwork::ClientNetwork()
{
    // create WSADATA object
    WSADATA wsaData;
    // socket
    ConnectSocket = INVALID_SOCKET;
    // holds address info for socket to connect to
    struct addrinfo *result = NULL,
        *ptr = NULL,
        hints;
    // Initialize Winsock
    iResult = WSAStartup(MAKEWORD(2, 2), &wsaData);
    if (iResult != 0) {
        printf("WSAStartup failed with error: %dn", iResult);
        exit(1);
    }

    // set address info
    ZeroMemory(&hints, sizeof(hints));
    hints.ai_family = AF_UNSPEC;
    hints.ai_socktype = SOCK_STREAM;
    hints.ai_protocol = IPPROTO_TCP;  //TCP connection!!!
    //resolve server address and port 
    iResult = getaddrinfo("127.0.0.1", DEFAULT_PORT, &hints, &result);
    if (iResult != 0)
    {
        printf("getaddrinfo failed with error: %dn", iResult);
        WSACleanup();
        exit(1);
    }
    // Attempt to connect to an address until one succeeds
    for (ptr = result; ptr != NULL; ptr = ptr->ai_next) {
        // Create a SOCKET for connecting to server
        ConnectSocket = socket(ptr->ai_family, ptr->ai_socktype,
            ptr->ai_protocol);
        if (ConnectSocket == INVALID_SOCKET) {
            printf("socket failed with error: %ldn", WSAGetLastError());
            WSACleanup();
            exit(1);
        }
        // Connect to server.
        iResult = connect(ConnectSocket, ptr->ai_addr, (int)ptr->ai_addrlen);
        if (iResult == SOCKET_ERROR)
        {
            closesocket(ConnectSocket);
            ConnectSocket = INVALID_SOCKET;
            printf("The server is down... did not connect");
        }
    }

    // no longer need address info for server
    freeaddrinfo(result);

    // if connection failed
    if (ConnectSocket == INVALID_SOCKET)
    {
        printf("Unable to connect to server!n");
        WSACleanup();
        exit(1);
    }
    // Set the mode of the socket to be nonblocking
    u_long iMode = 1;
    iResult = ioctlsocket(ConnectSocket, FIONBIO, &iMode);
    if (iResult == SOCKET_ERROR)
    {
        printf("ioctlsocket failed with error: %dn", WSAGetLastError());
        closesocket(ConnectSocket);
        WSACleanup();
        exit(1);
    }
    //disable nagle
    char value = 1;
    setsockopt(ConnectSocket, IPPROTO_TCP, TCP_NODELAY, &value, sizeof(value));
}

如果有人可以解释为什么它不起作用以及如何修复它将是一个很大的帮助