行业知识
使用C++从零开始，自己写一个MiniWeb
第一步：新建项目
1、打开VS点击创建新项目
2、选择空项目并点下一步（切记不能选错项目类型）
3、填写项目名称和路径，点击创建即可
新建好后项目是这样的比较干净
4、右击源文件，点击添加，新建http.cpp文件
第二步：前期准备
在http.cpp最上面引入依赖，并撰写main方法，打印错误日志的方法
#include#include#include#include#include#pragma comment(lib,"WS2_32.lib")#define PRINTF(str) printf("[%s - %d]"#str"%s",__func__,__LINE__,str);//打印错误日志void error_die(const char* str) {perror(str);exit(1);}int main(void) {return 0;} 第三步：网络初始化
初始化可以分为五步：1、网络通讯初始化===>>>2、创建套接字===>>>3、绑定端口===>>>4、绑定套接字===>>>5、创建监听队列
代码实现如下：
int startup(unsigned short *port) {//1、网络通讯初始化WSADATA data;int res = WSAStartup(MAKEWORD(1,1), &data);if (res) {error_die("init fail");}//2、创建套接字int server_socket = socket(PF_INET,SOCK_STREAM,IPPROTO_TCP);if (server_socket == -1) {error_die("sock create fail");}//3、绑定端口int opt = 1;res = setsockopt(server_socket,SOL_SOCKET,SO_REUSEADDR,(const char*) & opt, sizeof(opt));if (res) {error_die("port bing fail");}//4、绑定套接字struct sockaddr_in server_addr;memset(&server_addr,0,sizeof(server_addr));server_addr.sin_family = AF_INET;server_addr.sin_port = htons(*port);server_addr.sin_addr.s_addr = htonl(INADDR_ANY);res = bind(server_socket,(struct sockaddr*) &server_addr, sizeof(server_addr));if (res 0) {if (c == '\r') {n = recv(sock, &c, 1, MSG_PEEK);if (n > 0 && c == '\n') {recv(sock, &c, 1, 0);}else {c = '\n';}}buff[i++] = c;}else {c = '\n';}}buff[i] = 0;return 0;}//向指定套接字，发送一个未支持提示还没有实现的错误页面void unimplement(int client) {char buf[1024]; sprintf(buf, "HTTP/1.0 501 Method Not Implemented\r\n"); send(client, buf, strlen(buf), 0); sprintf(buf, SERVER_STRING); send(client, buf, strlen(buf), 0); sprintf(buf, "Content-Type: text/html\r\n"); send(client, buf, strlen(buf), 0); sprintf(buf, "\r\n"); send(client, buf, strlen(buf), 0); sprintf(buf, "Method Not Implemented\r\n"); send(client, buf, strlen(buf), 0); sprintf(buf, "\r\n"); send(client, buf, strlen(buf), 0); sprintf(buf, "HTTP request method not supported.\r\n"); send(client, buf, strlen(buf), 0); sprintf(buf, "\r\n"); send(client, buf, strlen(buf), 0);}//向指定套接字，发送一个未支持提示还没有实现的错误页面void not_found(int client) {char buf[1024]; sprintf(buf, "HTTP/1.0 404 NOT FOUND\r\n"); send(client, buf, strlen(buf), 0); sprintf(buf, SERVER_STRING); send(client, buf, strlen(buf), 0); sprintf(buf, "Content-Type: text/html\r\n"); send(client, buf, strlen(buf), 0); sprintf(buf, "\r\n"); send(client, buf, strlen(buf), 0); sprintf(buf, "Not Found\r\n"); send(client, buf, strlen(buf), 0); sprintf(buf, "
The server could not fulfill\r\n"); send(client, buf, strlen(buf), 0); sprintf(buf, "your request because the resource specified\r\n"); send(client, buf, strlen(buf), 0); sprintf(buf, "is unavailable or nonexistent.\r\n"); send(client, buf, strlen(buf), 0); sprintf(buf, "\r\n"); send(client, buf, strlen(buf), 0);}//发送响应的头信息void headers(int client) {char buff[1024];strcpy(buff, "HTTP/1.0 200 OK\r\n");send(client, buff, strlen(buff), 0);strcpy(buff, "Server:MyHttpd/0.1\r\n");send(client, buff, strlen(buff), 0);strcpy(buff, "Content-type:text/html\n");send(client, buff, strlen(buff), 0);strcpy(buff, "\r\n");send(client, buff, strlen(buff), 0);}//发送文件void cat(int client,FILE* resource) {char buff[4096];int count = 0;while (1) {int ret = fread(buff, sizeof(char), sizeof(buff), resource);if (ret 0 && strcmp(buff, "/n")) {numchars = get_line(client, buff, sizeof(buff));PRINTF(buff);}FILE* resource = fopen(fileName,"r");if (resource==NULL) {not_found(client);}else {//发送头信息headers(client);//发送文件cat(client, resource);printf("file send success");}fclose(resource);}DWORD WINAPI accept_request(LPVOID arg) {char buff[1024];int client = (SOCKET)arg;//1、获取第一行int numchars = get_line(client, buff,sizeof(buff));PRINTF(buff);char method[255];int j = 0 ,i =0;while (!isspace(buff[j])&&i 0&&strcmp(buff,"/n")) {numchars = get_line(client, buff, sizeof(buff));}PRINTF(buff);not_found(client);}else {if ((status.st_mode & S_IFMT)==S_IFDIR) {strcat(path, "index.html");}server_file(client,path);}closesocket(client);return 0;}
github地址：
https://github.com/1756336885/miniWeb.git
gitee地址：
miniWeb: 迷你版的web,用C++撰写，后期会添加数据库，中间件相关的操作
参考文章：
2-创建项目_哔哩哔哩_bilibili
C语言手写HTTPD网站服务器_126775241csdn-CSDN博客
