C++ 以POST方式向网页提交数据

示例代码如下：

#include 
#include 
#include  //定义了MFC CInternetSession类等

bool PostHttpPage(const std::string& hostName, const std::string& pathName, const std::string& postData)
{
	using namespace std;

	CInternetSession session("your app agent name");

	try
	{
		INTERNET_PORT nPort = 80;
		DWORD dwRet = 0;

		CHttpConnection* pServer = session.GetHttpConnection(hostName.c_str(), nPort);
		CHttpFile* pFile = pServer->OpenRequest(CHttpConnection::HTTP_VERB_POST, pathName.c_str());

		CString strHeaders = "Content-Type: application/x-www-form-urlencoded"; // 请求头
		
		//开始发送请求
		
		pFile->SendRequest(strHeaders,(LPVOID)postData.c_str(),postData.size());
		pFile->QueryInfoStatusCode(dwRet);

		
		if (dwRet == HTTP_STATUS_OK)
		{
			CString result, newline;
			
			while(pFile->ReadString(newline))
			{//循环读取每行内容
				result += newline+"\r\n";
			}

			std::cout<		}
		else
		{
			return false;
		}
		delete pFile;
		delete pServer;

	}
	catch (CInternetException* pEx)
	{
		//catch errors from WinInet
		TCHAR pszError[200];
		pEx->GetErrorMessage(pszError, 200);
		
		std::cout<		return false;
	}
	session.Close();

	return true;
}

int main(void)
{
	//向http://current.sinaapp.com/post.php发送数据
	PostHttpPage("current.sinaapp.com","post.php","name=rain&age=12");
}