WinSock2網(wǎng)絡(luò)通信(win32編程)
本代碼有服務(wù)器端server.cpp和客戶端client.cpp瓮钥，客戶端連接服務(wù)器端即可實現(xiàn)簡單文字通信前联。
服務(wù)器server.cpp代碼如下:
// server.cpp : 定義控制臺應(yīng)用程序的入口點镜盯。//#include "stdafx.h"#include#pragma comment(lib, "ws2_32") //引入lib庫
void SockInit();
void Error();
DWORD WINAPI ClientThread(void *p);
int _tmain(int argc, _TCHAR* argv[])
{
SockInit();//網(wǎng)絡(luò)初始化
SOCKET serverSock = socket(AF_INET, SOCK_STREAM, 0);
sockaddr_in addr;
addr.sin_family = AF_INET;
addr.sin_port = htons(4086);
addr.sin_addr.S_un.S_addr = ADDR_ANY;//可能有多個網(wǎng)卡吗浩，所以設(shè)為所有ip
int ret1 = bind(serverSock, (sockaddr*)&addr, sizeof(sockaddr));
//printf("%d",ret1);
Error();
listen(serverSock, 5);//最多監(jiān)聽5個
printf("server run...\n");
while (1) {
sockaddr_in cliAddr;
int addLen = sizeof(cliAddr);
SOCKET clientSock = accept(serverSock, (sockaddr*)&cliAddr, &addLen);
char *buff = "welocme connect";
int ret2 = send(clientSock, buff, strlen(buff),0);
CreateThread(0, 0, ClientThread, &clientSock, 0, 0);//有新客戶端連接時，開啟一個線程用于接收消息
}
closesocket(serverSock);
return 0;
}
DWORD WINAPI ClientThread(void *p) {
SOCKET clientSock = *(SOCKET*)p;
while (1) {
char buff[1024] = { 0 };
int ret3 = recv(clientSock, buff, 1024, 0);
ERROR();
printf(buff);
send(clientSock, buff, strlen(buff), 0);
}
}
void SockInit()//網(wǎng)絡(luò)初始化来累，相當(dāng)于允使程序使用網(wǎng)絡(luò)
{
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD(2, 2);
err = WSAStartup(wVersionRequested, &wsaData);
if (err != 0)
{
printf("WSAStartup failed witherror: %d\n", err);
exit(-1);
}
}
void Error() {//獲取異常錯誤
int err = GetLastError();
if (err >0) {
printf("Error code = %d\n", err);
exit(-1);
}
}
客戶端client.cpp代碼如下:
// client.cpp : 定義控制臺應(yīng)用程序的入口點砚作。//#include "stdafx.h"#include#pragma comment(lib, "ws2_32") //引入lib庫#includevoid SockInit();
void Error();
DWORD WINAPI ServerThread(void *p);
int _tmain(int argc, _TCHAR* argv[])
{
SockInit();//網(wǎng)絡(luò)初始化
SOCKET clientSock = socket(AF_INET, SOCK_STREAM, 0);
sockaddr_in addr;
addr.sin_family = AF_INET;
addr.sin_port = htons(4086);
//通過ipconfig查看
//本機(jī)ip127.0.0.1
//addr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");//連接本機(jī)，所以ip是這樣
addr.sin_addr.S_un.S_un_b.s_b1 = 127;
addr.sin_addr.S_un.S_un_b.s_b2 = 0;
addr.sin_addr.S_un.S_un_b.s_b3 = 0;
addr.sin_addr.S_un.S_un_b.s_b4 = 1;
connect(clientSock, (sockaddr*)&addr, sizeof(sockaddr));
CreateThread(0, 0, ServerThread, &clientSock, 0, 0);
while (1) {
char buff[1024] = { 0 };
gets_s(buff);
int ret4 = send(clientSock, buff, strlen(buff), 0);
}
closesocket(clientSock);
return 0;
}
DWORD WINAPI ServerThread(void *p) {//開啟線程用于和服務(wù)器連接
SOCKET clientSock = *(SOCKET*)p;
while (1) {
char buff[1024] = { 0 };
recv(clientSock, buff, 1024, 0);
printf("Recv : %s\n", buff);
}
}
void SockInit()//網(wǎng)絡(luò)初始化
{
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD(2, 2);
err = WSAStartup(wVersionRequested, &wsaData);
if (err != 0)
{
printf("WSAStartup failed witherror: %d\n", err);
exit(-1);
}
}
void Error() {//查看網(wǎng)絡(luò)連接是否異常嘹锁。如果有錯誤碼葫录，則可以點擊工具-〉錯誤查找，輸入錯誤碼即可
int err = GetLastError();
if (err >0) {
printf("Error code = %d\n", err);
exit(-1);
}
}
解決方案中右鍵點擊server.cpp领猾，設(shè)為啟動項米同，再點擊開始執(zhí)行，先運行服務(wù)器摔竿。
同理再將client.cpp運行面粮。運行結(jié)果如下:
