c++封装HTTP GET请求访问网站

运行环境：VS2013  功能：模拟浏览器访问百度

具体代码如下

#include <iostream>
#include <WinSock2.h>
#include <WS2tcpip.h>
#include <sstream>

#pragma comment(lib,"ws2_32.lib")

int main()
{
	//初始化配置
	WORD word = MAKEWORD(2, 2);
	WSADATA ws;
	if (WSAStartup(word, &ws) != 0)
	{
		return -1;
	}

	SOCKET sockfd = socket(AF_INET, SOCK_STREAM, 0);
	if (sockfd == INVALID_SOCKET)
	{
		perror("socket:");
		return -1;
	}

	sockaddr_in clientAddr;
	clientAddr.sin_family = AF_INET;
	clientAddr.sin_port = htons(80);
	inet_pton(AF_INET, "14.215.177.39", &clientAddr.sin_addr);

	//封装GET请求头
	std::stringstream str;

	str << "GET / HTTP/1.1\r\n";
	str << "Host: 14.215.177.39:80\r\n";
	str << "Connection: close\r\n\r\n";

	if (-1 == connect(sockfd, (sockaddr*)&clientAddr, sizeof(clientAddr)))
	{
		perror("connect:");
		return -1;
	}
	std::cout << "connect successful..." << std::endl;

	//发送请求
	send(sockfd,str.str().c_str(),sizeof(str),0);

	//接收信息
	char recvbuf[1024] = { 0 };

	recv(sockfd, recvbuf, sizeof(recvbuf), 0);

	std::cout << recvbuf << std::endl;

	return 0;
}

输出