C++發送字節數據

來源

項目的甲方要求我們做一個C++的發送代碼，給他們那個模塊做測試，由於我們的報文在接收端需要按照字節讀取，然後完整項目中用的是QT的接口，所以我用C++勉強實現了一下

碼來

//#include<tchar.h>
#include <iostream>
#include <WinSock2.h>
#include <Windows.h>
#include <WS2tcpip.h>
#include<string>
#include<cstring>
#include <windows.h>

#pragma comment(lib, "ws2_32.lib")
using namespace std;
const int nPort = 7799;
const string addRess = "127.0.0.1";
int main()
{
    WSAData wsd;           
    SOCKET soSend;        
    int nRet = 0;
    SOCKADDR_IN siLocal;
    byte HeartBeat[11] = { static_cast <byte>(0x19), static_cast <byte>(0x10) , static_cast <byte>(0x02) , static_cast <byte>(0x00) ,
        static_cast <byte>(0x00) , static_cast <byte>(0x00) , static_cast <byte>(0x04) , static_cast <byte>(0x31) ,
        static_cast <byte>(0x69) , static_cast <byte>(0xBB) ,static_cast <byte>(0x68) };

    byte HardwareStatus[11] = { static_cast <byte>(0x19), static_cast <byte>(0x10) , static_cast <byte>(0x03) , static_cast <byte>(0x00) ,
        static_cast <byte>(0x00) , static_cast <byte>(0x00) , static_cast <byte>(0x04) , static_cast <byte>(0x01) , static_cast <byte>(0x01),
        static_cast <byte>(0x01) , static_cast <byte>(0x01) };

    byte SoftwareStatus[8] = { static_cast <byte>(0x19), static_cast <byte>(0x10) ,static_cast <byte>(0x04) ,static_cast <byte>(0x00) ,
        static_cast <byte>(0x00) ,static_cast <byte>(0x00) ,static_cast <byte>(0x01) ,static_cast <byte>(0x00) };

    byte ConfigUpdate[9] = { static_cast <byte>(0x19), static_cast <byte>(0x10) , static_cast <byte>(0x06) , static_cast <byte>(0x00) ,
        static_cast <byte>(0x00) , static_cast <byte>(0x00) , static_cast <byte>(0x02) , static_cast <byte>(0x05) , static_cast <byte>(0x00) };

    byte Response[9] = { static_cast <byte>(0x19), static_cast <byte>(0x10) , static_cast <byte>(0x06) , static_cast <byte>(0x00) ,
        static_cast <byte>(0x00) , static_cast <byte>(0x00) , static_cast <byte>(0x02) , static_cast <byte>(0x01) , static_cast <byte>(0x00) };

    byte TaskStatus[13] = { static_cast <byte>(0x19), static_cast <byte>(0x10) , static_cast <byte>(0x07) , static_cast <byte>(0x00) ,
        static_cast <byte>(0x00) , static_cast <byte>(0x00) , static_cast <byte>(0x06) , static_cast <byte>(0x01) , static_cast <byte>(0x02),
        static_cast <byte>(0x03), static_cast <byte>(0x04), static_cast <byte>(0x05), static_cast <byte>(0x06)};
    byte* toSend[6] = { HeartBeat ,HardwareStatus ,SoftwareStatus ,ConfigUpdate ,Response ,TaskStatus };
    int toSendlen[6] = { 11,11,8,9,9,13 };
    //啓動Winsock
    if (WSAStartup(MAKEWORD(2, 2), &wsd) != 0) {
        cout << "WSAStartup Error = " << WSAGetLastError() << endl;
        return 0;
    }
    soSend = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
    if (soSend == SOCKET_ERROR) {
        cout << "socket Error = " << WSAGetLastError() << endl;
        return 1;
    }
    siLocal.sin_family = AF_INET;
    siLocal.sin_port = htons(nPort);
    inet_pton(AF_INET, addRess.c_str(), &siLocal.sin_addr.S_un.S_addr);
    for (int i = 0; i < 6; i++) {
       nRet = sendto( soSend, (char *)toSend[i], toSendlen[i], 0, (SOCKADDR*)&siLocal, sizeof(SOCKADDR));
       cout << "toSend message:" << i << "success\n";
       if (nRet == SOCKET_ERROR) {
           cout << "sendto Error " << WSAGetLastError() << endl;
           break;
       }
       Sleep(1000);
    }
    closesocket(soSend);
    WSACleanup();
	return 0;
}

上述代碼的方法可以用來簡單測試，如果是linux中的話，需要對byte做一個宏定義，實際就是usigned char類型的變量