C++ 以POST方式向网页提交数据

#include  <iostream>

#include  <string>

#include <afxinet.h> //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<<result<<std::endl;//显示返回内容 

                } 

            else 

         { 

                    return false; 

                } 

            delete pFile; 

                delete pServer;   

   } 

    catch (CInternetException* pEx) 

      { 

            //catch errors from WinInet 

          TCHAR pszError[200]; 

         pEx->GetErrorMessage(pszError, 200);   

              std::cout<<pszError<<std::endl;//显示异常信息 

              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"); 

}