一、服务端代码
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#define WIN32_LEAN_AND_MEAN
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#define _WINSOCK_DEPRECATED_NO_WARNINGS //for inet_pton()
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#include <windows.h>
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#include <WinSock2.h>
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#include <iostream>
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#pragma comment(lib, "ws2_32.lib")
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-
using
namespace
std;
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int main()
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{
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WORD ver = MAKEWORD(
2,
2);
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WSADATA dat;
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WSAStartup(ver, &dat);
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//建立socket
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SOCKET _sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
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if (INVALID_SOCKET == _sock){
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std::
cout <<
"ERROR:建立socket失败!" <<
std::
endl;
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}
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else {
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std::
cout <<
"建立socket成功!" <<
std::
endl;
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}
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//初始化服务端地址
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struct sockaddr_in _sin = {};
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_sin.sin_addr.S_un.S_addr = inet_addr(
"192.168.0.104");
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//_sin.sin_addr.S_un.S_addr = INADDR_ANY;
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_sin.sin_family = AF_INET;
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_sin.sin_port = htons(
4567);
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//绑定服务端地址
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if (SOCKET_ERROR == bind(_sock, (struct sockaddr*)&_sin,
sizeof(_sin))){
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std::
cout <<
"ERROR:绑定地址失败!" <<
std::
endl;
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}
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else {
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std::
cout <<
"绑定地址成功!" <<
std::
endl;
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}
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//监听网络端口
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if (SOCKET_ERROR == listen(_sock,
5)) {
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std::
cout <<
"ERROR:监听网络端口失败!" <<
std::
endl;
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}
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else {
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std::
cout <<
"监听网络端口成功!" <<
std::
endl;
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}
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//用来保存客户端地址
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struct sockaddr_in _clientAddr = {};
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int nAddrLen =
sizeof(_clientAddr);
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SOCKET _cSock = INVALID_SOCKET;
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char msgBuf[] =
"Hello, I'm Server.";
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//接收客户端连接
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_cSock = accept(_sock, (struct sockaddr*)&_clientAddr, &nAddrLen);
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if (INVALID_SOCKET == _cSock) {
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std::
cout <<
"ERROR:接收到无效客户端!" <<
std::
endl;
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}
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else {
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std::
cout <<
"接受到新的客户端连接,IP=" << inet_ntoa(_clientAddr.sin_addr)
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<<
",Socket=" <<
static_cast<
int>(_cSock) <<
std::
endl;
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}
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char recvBuf[
1024] = {};
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//循环处理客户端的数据
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while (
true)
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{
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//接受数据
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int _nLen = recv(_cSock, recvBuf,
1024,
0);
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if (_nLen <=
0) {
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std::
cout <<
"客户端已退出" <<
std::
endl;
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break;
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}
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std::
cout <<
"收到命令" << recvBuf <<
std::
endl;
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if (
0 ==
strcmp(recvBuf,
"getName")) {
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char msgBuf[] =
"dongshao";
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send(_cSock, msgBuf,
strlen(msgBuf) +
1,
0);
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}
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else
if (
0 ==
strcmp(recvBuf,
"getAge")) {
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char msgBuf[] =
"21";
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send(_cSock, msgBuf,
strlen(msgBuf) +
1,
0);
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}
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else {
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char msgBuf[] =
"命令不正确";
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send(_cSock, msgBuf,
strlen(msgBuf) +
1,
0);
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}
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}
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//关闭服务端套接字
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closesocket(_sock);
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WSACleanup();
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std::
cout <<
"服务端停止工作!" <<
std::
endl;
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getchar();
//防止程序一闪而过
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return
0;
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}
二、客户端代码
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#define WIN32_LEAN_AND_MEAN
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#define _WINSOCK_DEPRECATED_NO_WARNINGS //for inet_pton()
-
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#include <windows.h>
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#include <WinSock2.h>
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#include <iostream>
-
-
#pragma comment(lib, "ws2_32.lib")
-
-
using
namespace
std;
-
-
int main()
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{
-
WORD ver = MAKEWORD(
2,
2);
-
WSADATA dat;
-
WSAStartup(ver, &dat);
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//建立socket
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SOCKET _sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
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if (INVALID_SOCKET == _sock) {
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std::
cout <<
"ERROR:建立socket失败!" <<
std::
endl;
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}
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else {
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std::
cout <<
"建立socket成功!" <<
std::
endl;
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}
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//声明要连接的服务端地址
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struct sockaddr_in _sin = {};
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_sin.sin_addr.S_un.S_addr = inet_addr(
"192.168.0.104");
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_sin.sin_family = AF_INET;
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_sin.sin_port = htons(
4567);
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//连接服务端
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int ret = connect(_sock, (struct sockaddr*)&_sin,
sizeof(_sin));
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if (SOCKET_ERROR == ret) {
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std::
cout <<
"ERROR:连接服务端失败!" <<
std::
endl;
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}
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else {
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std::
cout <<
"连接服务端成功!" <<
std::
endl;
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}
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char cmdBuf[
256] = {};
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while (
true)
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{
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//输入数据
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std::
cout <<
"cmd#:";
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std::
cin >> cmdBuf;
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//如果输入的是exit，退出程序
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if (
0 ==
strcmp(cmdBuf,
"exit")) {
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break;
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}
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//向服务端发送自己的命令
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int _nLen = send(_sock, cmdBuf,
strlen(cmdBuf) +
1,
0);
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if (_nLen ==
0) {
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std::
cout <<
"输入有误，重新发送" <<
std::
endl;
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continue;
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}
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else {
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char recvBuf[
1024] = {};
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_nLen = recv(_sock, recvBuf,
sizeof(recvBuf),
0);
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if (_nLen <=
0) {
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std::
cout <<
"命令接收错误" <<
std::
endl;
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continue;
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}
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else {
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std::
cout << recvBuf <<
std::
endl;
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}
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}
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}
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//关闭服务端套接字
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closesocket(_sock);
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WSACleanup();
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std::
cout <<
"服务端停止工作!" <<
std::
endl;
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getchar();
//防止程序一闪而过
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return
0;
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}
三、演示效果
- 双击服务端程序
- 双击客户端程序，可以看到服务端成功接收到请求，客户端等待命令输入
- 客户端输入信息到服务端，并交互数据
转载：https://blog.csdn.net/qq_41453285/article/details/105281284
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