【文件属性】：
文件名称：c++ udp通信发送.rar
文件大小：5.93MB
文件格式：RAR
更新时间：2017-05-20 09:53:54
c++ udp 通信
c++ udp通信发送实例
/////////////////////////////////////////////////////////
// initsock.h文件
#include
#pragma comment(lib, "WS2_32") // 链接到WS2_32.lib
class CInitSock
{
public:
CInitSock(BYTE minorVer = 2, BYTE majorVer = 2)
{
// 初始化WS2_32.dll
WSADATA wsaData;
WORD sockVersion = MAKEWORD(minorVer, majorVer);
if(::WSAStartup(sockVersion, &wsaData) != 0)
{
exit(0);
}
}
~CInitSock()
{
::WSACleanup();
}
};
//////////////////////////////////////////////////////////
// UDPClient文件
#include "../common/InitSock.h"
#include
CInitSock initSock; // 初始化Winsock库
int main()
{
// 创建套节字
SOCKET s = ::socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if(s == INVALID_SOCKET)
{
printf("Failed socket() %d \n", ::WSAGetLastError());
return 0;
}
// 也可以在这里调用bind函数绑定一个本地地址
// 否则系统将会自动安排
// 填写远程地址信息
sockaddr_in addr;
addr.sin_family = AF_INET;
addr.sin_port = htons(4567);
// 注意，这里要填写服务器程序所在机器的IP地址
// 如果你的计算机没有联网，直接使用127.0.0.1即可
addr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
// 发送数据
char szText[] = " TCP Server Demo! \r\n";
::sendto(s, szText, strlen(szText), 0, (sockaddr*)&addr, sizeof(addr));
::closesocket(s);
return 0;
}
//////////////////////////////////////////////////////////
// UDPServer.cpp文件
#include "../common/InitSock.h"
#include
CInitSock initSock; // 初始化Winsock库
int main()
{
// 创建套节字
SOCKET s = ::socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if(s == INVALID_SOCKET)
{
printf("Failed socket() \n");
return 0;
}
// 填充sockaddr_in结构
sockaddr_in sin;
sin.sin_family = AF_INET;
sin.sin_port = htons(4567);
sin.sin_addr.S_un.S_addr = INADDR_ANY;
// 绑定这个套节字到一个本地地址
if(::bind(s, (LPSOCKADDR)&sin, sizeof(sin)) == SOCKET_ERROR)
{
printf("Failed bind() \n");
return 0;
}
// 接收数据
char buff[1024];
sockaddr_in addr;
int nLen = sizeof(addr);
while(TRUE)
{
int nRecv = ::recvfrom(s, buff, 1024, 0, (sockaddr*)&addr, &nLen);
if(nRecv > 0)
{
buff[nRecv] = '\0';
printf(" 接收到数据（%s）：%s", ::inet_ntoa(addr.sin_addr), buff);
}
}
::closesocket(s);
}
【文件预览】：
c++ udp通信发送
----Debug()
--------tttttttttttt.ilk(326KB)
--------tttttttttttt.pdb(563KB)
--------tttttttttttt.exe(37KB)
----ipch()
--------tttttttttttt-276f25e5()
----tttttttttttt.sdf(24.21MB)
----tttttttttttt.sln(903B)
----tttttttttttt()
--------tttttttttttt.cpp(1KB)
--------Debug()
--------stdafx.h(233B)
--------ReadMe.txt(2KB)
--------tttttttttttt.vcxproj.filters(1KB)
--------stdafx.cpp(217B)
--------tttttttttttt.vcxproj.user(143B)
--------tttttttttttt.vcxproj(4KB)
--------targetver.h(236B)
----tttttttttttt.suo(1.53MB)
----C++udp通信.doc(18KB)
