1、前言
简单理解http协议，其实就是对发送的数据进行了包装（多了表示各种属性的报头）
此链接可以学习以下编写http服务器：超轻量型http服务器 tinyhttpd
http协议报文
2、环境
本人电脑配置了apache+php的开发环境，，使用80端口
3、代码
client
// ConnectToPHPServer.cpp : 定义控制台应用程序的入口点。//#include "stdafx.h" #include<stdio.h> #include<winsock.h> #include<string.h> #pragma comment(lib, "ws2_32.lib") #define PORT 80#define SIZE 512#define MAX_SIZE 1024void buildGETHeader(char* header, int size, char* host, char* res){memset(header,0,size);strcat(header,"GET ");strcat(header,res);strcat(header," HTTP/1.1\r\n");strcat(header,"HOST:");strcat(header,host);strcat(header,"\r\nConnection: Keep-Alive\r\n\r\n");return;}void buildPOSTHeader(char* header, int size, char* host, char* res){memset(header,0,size);strcat(header,"POST ");strcat(header,res);strcat(header," HTTP/1.1\r\n");strcat(header,"HOST:");strcat(header,host);strcat(header, "\r\nContent-Type: application/x-www-form-urlencoded\r\n");strcat(header, "Content-Length: 8\r\n");strcat(header,"Connection: Keep-Alive\r\n\r\n");strcat(header,"user=cjc\r\n\r\n");return;}void sendData(SOCKET serverSocket, char* data){send(serverSocket, data, strlen(data),0);}void getData(SOCKET serverSocket, char* data, int size){int num=0;char buf[SIZE];memset(data,0,MAX_SIZE);memset(buf,0,SIZE);while(recv(serverSocket,buf,SIZE,0)>0){strcat(data,buf);memset(buf,0,SIZE);}return;}void parseURL(char*url , char*& host, char*& res){char* p;int num=0;p=url+7;while(*p!='/' && *p!='\0'){p++;}if(strlen(p)!=0){num=strlen(p)+1;res=(char*)malloc(num);memset(res,0,num);strcpy(res,p);}else{res=(char*)malloc(2);memset(res,0,2);res[0]='/';}*p='\0';host=url+7;return;}void connectToHost(char* host, SOCKET& serverSocket, char* res){WSAData wsadata={0};struct sockaddr_in addr;struct hostent* pHost;char header[SIZE],buf[MAX_SIZE];if(WSAStartup(MAKEWORD(2,2),&wsadata)){printf("WSASartup failed!\n");system("pause");exit(-1);}serverSocket=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);pHost=gethostbyname(host);addr.sin_family=AF_INET;addr.sin_addr.S_un.S_addr=*((unsigned long*)pHost->h_addr);addr.sin_port=htons(PORT);connect(serverSocket,(SOCKADDR*)&addr,sizeof(addr));printf("Connect to host OK!\n");return;}int main(void){char url[100]="";char *host,*res,header[SIZE],buf[MAX_SIZE];SOCKET serverSocket;parseURL(url,host,res);connectToHost(host,serverSocket,res);/*buildGETHeader(header,SIZE,host,res);sendData(serverSocket,header);getData(serverSocket,buf,MAX_SIZE);printf("%s\n",buf);*/buildPOSTHeader(header,SIZE,host,res);sendData(serverSocket,header);getData(serverSocket,buf,MAX_SIZE);printf("%s\n",buf);closesocket(serverSocket);WSACleanup();system("pause");return 0;}server
<?phpif(isset($_POST['user'])){echo $_POST['user'];}?>4、结果
如果成功的话，client端dox执行窗口的末尾会输出cjc字样
但是至少可以为自己的荷包省钱可以支些招，这点还是很现实的。
