MINA服务端与C++客户端通讯（2）

来源：互联网发布：中国新歌声2网络直播编辑：程序博客网时间：2024/06/05 17:27

Java与C++通讯还有编码转码的问题存在，假设通讯编码采用UTF-8

C++客户端发送时需要转码成UTF-8编码，接收服务端应答消息后再转回Unicode或者GBK编码

下面给出完成的C++客户端通讯示例：

void Transcoding(LPCTSTR src, UINT srcCode, string& dest, UINT destCode)
{
    int len = MultiByteToWideChar(srcCode, 0, src, -1, NULL, 0);
    WCHAR* srcTemp = new WCHAR[len];
    MultiByteToWideChar(srcCode, 0, src, -1, srcTemp, len);
    len = WideCharToMultiByte(destCode, 0, srcTemp, -1, NULL, 0, NULL, NULL);
    char* destTemp = new char[len];
    WideCharToMultiByte(destCode, 0, srcTemp, -1, destTemp, len, NULL, NULL);

    dest = destTemp;

    delete []srcTemp;
    delete []destTemp;
}

int _tmain(int argc, _TCHAR* argv[])
{
    // client connect
    CXSocket client;
    client.initWinSocket();
    client.setAddress("127.0.0.1");
    client.setPort(1234);
    client.setProtoType(TCP);
    int ret = client.connect();
    if(ret < 0)
    {
        getchar();
        return 0;
    }

    // 加通讯协议头demo
    // client send
    char send[] = {"CXSocket 第一个测试用例."};

    string utf8;
    Transcoding(send, CP_ACP, utf8, CP_UTF8);

    XNET::TPacketHeader sendHeader;
    sendHeader.m_HeaderSig = 0xABCD;
    swap_2(sendHeader.m_HeaderSig);
    sendHeader.m_Length = (int)utf8.length();
    swap_4(sendHeader.m_Length);

    char buffer[1024] = {0};
    memcpy(buffer, &sendHeader, XNET::TCP_HEADLEN);
    memcpy(&buffer[XNET::TCP_HEADLEN], utf8.c_str(), utf8.length());
    client.sendBuf(buffer, (int)(XNET::TCP_HEADLEN + utf8.length()));

    // client recv
    XNET::TPacketHeader recvHeader;
    client.receiveBuf(&recvHeader, XNET::TCP_HEADLEN);
    swap_2(recvHeader.m_HeaderSig);
    swap_4(recvHeader.m_Length);
    char* recv = new char[recvHeader.m_Length + 1];
    memset(recv, 0, recvHeader.m_Length + 1);
    client.receiveBuf(recv, recvHeader.m_Length);
    string ansi;
    Transcoding(recv, CP_UTF8, ansi, CP_ACP);

    client.close();
    client.uninitWinSocket();

    getchar();

    return 0;
}