VC实现HTTP协议的GET和POST方法

以下是两个文件：HttpClient.h   HttpClient.cpp   一个类   
  （错误检测部分没有加入）   
  使用方法   
  1：get方式   

  CHttpClient   conn;
  CString   value="http://8crystal.com/test.asp";
                    value=conn.doGet(value);

2：post方式   

CHttpClient   conn;
  CString   value="http://8crystal.com/test.asp";
  conn.addParam("name1","value1");
  conn.addParam("name2","value2");
  conn.addParam("name3","value3");
  conn.addParam("name4","value4");
  conn.addParam("name5","value5");
  conn.addParam("name6","value6");
  value=conn.doPost(value);

  //   HttpClient.h:   interface   for   the   CHttpClient   class.
  //
  //////////////////////////////////////////////////////////////////////

  #if   !defined(AFX_HTTPCLIENT_H__EA769DCB_AAB9_47CD_BD87_FBD6913592C5__INCLUDED_)
  #define   AFX_HTTPCLIENT_H__EA769DCB_AAB9_47CD_BD87_FBD6913592C5__INCLUDED_

  #if   _MSC_VER   >   1000
  #pragma   once
  #endif   //   _MSC_VER   >   1000
  #include   "wininet.h"
  #include   "afxinet.h"
  class   CHttpClient
  {
  public:
  void   addParam(CString   name,CString   value);
  CString   doPost(CString   href);
  CString   doGet(CString   href);
  CHttpClient();
  virtual   ~CHttpClient();

  private:
  CString   CONTENT;
  int   CL;
  CStringList   values;
  CStringList   names;
  };

  #endif   //   !defined(AFX_HTTPCLIENT_H__EA769DCB_AAB9_47CD_BD87_FBD6913592C5__INCLUDED_)

  ++++++++++++++++++++++++++++++++++++++


  //   HttpClient.cpp:   implementation   of   the   CHttpClient   class.
  //
  //////////////////////////////////////////////////////////////////////

  #include   "stdafx.h"
  #include   "emailsenderv2.h"
  #include   "HttpClient.h"

  #ifdef   _DEBUG
  #undef   THIS_FILE
  static   char   THIS_FILE[]=__FILE__;
  #define   new   DEBUG_NEW
  #endif

  //////////////////////////////////////////////////////////////////////
  //   Construction/Destruction
  //////////////////////////////////////////////////////////////////////

  CHttpClient::CHttpClient()
  {

  }

  CHttpClient::~CHttpClient()
  {

  }

  CString   CHttpClient::doGet(CString   href)
  {
  CString   httpsource="";
  CInternetSession   session1(NULL,0);
  CHttpFile*   pHTTPFile=NULL;
  try{
  pHTTPFile=(CHttpFile*)session1.OpenURL(href);
  //session1.
  }catch(CInternetException){
  pHTTPFile=NULL;
  }
  if(pHTTPFile)
  {
  CString   text;
  for(int   i=0;pHTTPFile->ReadString(text);i++)
  {
  httpsource=httpsource+text+"rn";
  }
  pHTTPFile->Close();
  delete   pHTTPFile;
  }else
  {

  }
  return   httpsource;
  }

  CString   CHttpClient::doPost(CString   href)
  {
  CString   httpsource="";
  CInternetSession   session1;
  CHttpConnection*   conn1=NULL;
          CHttpFile*   pFile   =   NULL;
  CString   strServerName;
          CString   strObject;
          INTERNET_PORT   nPort;
          DWORD   dwServiceType;
  AfxParseURL((LPCTSTR)href,dwServiceType,   strServerName,   strObject,   nPort);
          DWORD   retcode;
          char*   outBuff   =   CONTENT.GetBuffer(1000);
          try
          {
                  conn1   =   session1.GetHttpConnection(strServerName,nPort);
                  pFile   =   conn1->OpenRequest(0,strObject,NULL,1,NULL,"HTTP/1.1",INTERNET_FLAG_EXISTING_CONNECT|INTERNET_FLAG_NO_AUTO_REDIRECT);
                  pFile   ->   AddRequestHeaders("Content-Type:   application/x-www-form-urlencoded");
                  pFile   ->   AddRequestHeaders("Accept:   */*");
                  pFile   ->   SendRequest(NULL,0,outBuff,strlen(outBuff)+1);
                  pFile   ->   QueryInfoStatusCode(retcode);
          }
          catch   (CInternetException   *   e){};
  if(pFile)
  {
  CString   text;
  for(int   i=0;pFile->ReadString(text);i++)
  {
  httpsource=httpsource+text+"rn";
  }
  pFile->Close();
  }else
  {

  }
  return   httpsource;
          delete   pFile;
          delete   conn1;
          session1.Close();
  }

  void   CHttpClient::addParam(CString   name,   CString   value)
  {
  names.AddTail((LPCTSTR)name);
  values.AddTail((LPCTSTR)value);
  CString   eq="=";
  CString   an="&";
  CONTENT=CONTENT+name+eq+value+an;
  CL=CONTENT.GetLength();
  }

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