在VS2010中使用WinHttp和Java搭建的Web平台通信时出现问题

在VS2010中通过WinHttp和Java搭建的Web平台通信时出现一个很怪异的问题：当我直接建立一个win32 console的工程时，进行通信没有问题，但当我把原来代码放在一个新建的头文件中时，然后将这个头文件添加入MFC工程，然后在所需要这个头文件的地方包含这个头文件，编译时出现了以下问题：错误error C2371: “HTTP_VERSION_INFO”: 重定义；不同的基类型 c:\program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp.h ，错误error C2371: “HTTP_VERSION_INFO”: 重定义；不同的基类型 c:\program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp.h ，错误error C2371: “URL_COMPONENTS”: 重定义；不同的基类型 c:\program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp.h 160，错误error C2371: “HTTP_VERSION_INFO”: 重定义；不同的基类型 c:\program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp.h 等问题，不知是何原因？
代码如下：

#include "stdafx.h"

#include <afx.h>

#define USE_WINHTTP //Comment this line to user wininet.

#ifdef USE_WINHTTP

#include <winhttp.h>

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

#else

#include <wininet.h>

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

#endif



#include <vector>



#define BUF_SIZE (1024)



class CrackedUrl 

{

	int m_scheme;

	CStringW m_host;

	int m_port;

	CStringW m_path;

public:

	CrackedUrl(LPCWSTR url)

	{

		URL_COMPONENTS uc = { 0};

		uc.dwStructSize = sizeof(uc);				

		const DWORD BUF_LEN = 256;



		WCHAR host[BUF_LEN];

		uc.lpszHostName = host;

		uc.dwHostNameLength = BUF_LEN;			

		WCHAR path[BUF_LEN];

		uc.lpszUrlPath = path;

		uc.dwUrlPathLength = BUF_LEN;			

		WCHAR extra[BUF_LEN];

		uc.lpszExtraInfo = extra;

		uc.dwExtraInfoLength = BUF_LEN;

#ifdef USE_WINHTTP

		if (!WinHttpCrackUrl(url, 0, ICU_ESCAPE, &uc)) {

			printf("Error:WinHttpCrackUrl failed!\n");

		}				

#else

		if (!InternetCrackUrl(url, 0, ICU_ESCAPE, &uc)) {

			printf("Error:InternetCrackUrl failed!\n");

		}

#endif

		m_scheme = uc.nScheme;

		m_host = host;

		m_port = uc.nPort;

		m_path = path;

	}

	int GetScheme() const

	{

		return m_scheme;

	}	

	LPCWSTR GetHostName() const

	{

		return m_host;

	}

	int GetPort() const

	{

		return m_port;

	}



	LPCWSTR GetPath() const

	{

		return m_path;

	}

	static CStringA UrlEncode(const char* p)

	{

		if (p == 0) 		

			return CStringA();

		CStringA buf;

		for (;;) 

		{

			int ch = (BYTE) (*(p++));

			if (ch == '\0')			

				break;			

			if (isalnum(ch) || ch == '_' || ch == '-' || ch == '.') 

				buf += (char)ch;			

			else if (ch == ' ') 

				buf += '+';			

			else 

			{

				char c[16];

				wsprintfA(c, "%%%02X", ch);

				buf += c;

			}

		}

		return buf;

	}

};





HINTERNET OpenSession(LPCWSTR userAgent = 0)

{

#ifdef USE_WINHTTP

	return WinHttpOpen(userAgent, NULL, NULL, NULL, NULL);;

#else

	return InternetOpen(userAgent, INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0);

#endif

}



HINTERNET Connect(HINTERNET hSession, LPCWSTR serverAddr, int portNo)

{

#ifdef USE_WINHTTP

	return WinHttpConnect(hSession, serverAddr, (INTERNET_PORT) portNo, 0);

#else

	return InternetConnect(hSession, serverAddr, portNo, NULL, NULL, INTERNET_SERVICE_HTTP, 0, 0);

#endif

}



HINTERNET OpenRequest(HINTERNET hConnect, LPCWSTR verb, LPCWSTR objectName, int scheme)

{

	DWORD flags = 0;

#ifdef USE_WINHTTP

	if (scheme == INTERNET_SCHEME_HTTPS) {

		flags |= WINHTTP_FLAG_SECURE;

	}

	return WinHttpOpenRequest(hConnect, verb, objectName, NULL, NULL, NULL, flags);

#else

	if (scheme == INTERNET_SCHEME_HTTPS) {

		flags |= INTERNET_FLAG_SECURE;

	}

	return HttpOpenRequest(hConnect, verb, objectName, NULL, NULL, NULL, flags, 0);

#endif

}

BOOL AddRequestHeaders(HINTERNET hRequest, LPCWSTR header)

{

	SIZE_T len = lstrlenW(header);

#ifdef USE_WINHTTP

	return WinHttpAddRequestHeaders(hRequest, header, DWORD(len), WINHTTP_ADDREQ_FLAG_ADD);

#else

	return HttpAddRequestHeaders(hRequest, header, DWORD(len), HTTP_ADDREQ_FLAG_ADD);

#endif

}

BOOL SendRequest(HINTERNET hRequest, const void* body, DWORD size)

{

#ifdef USE_WINHTTP

	return WinHttpSendRequest(hRequest, 0, 0, const_cast<void*>(body), size, size, 0);

#else

	return HttpSendRequest(hRequest, 0, 0, const_cast<void*>(body), size);

#endif

}

BOOL EndRequest(HINTERNET hRequest)

{

#ifdef USE_WINHTTP

	return WinHttpReceiveResponse(hRequest, 0);

#else

	// if you use HttpSendRequestEx to send request then use HttpEndRequest in here!

	return TRUE;

#endif

}

BOOL QueryInfo(HINTERNET hRequest, int queryId, char* szBuf, DWORD* pdwSize)

{

#ifdef USE_WINHTTP

	return WinHttpQueryHeaders(hRequest, (DWORD) queryId, 0, szBuf, pdwSize, 0);

#else

	return HttpQueryInfo(hRequest, queryId, szBuf, pdwSize, 0);

#endif

}

BOOL ReadData(HINTERNET hRequest, void* buffer, DWORD length, DWORD* cbRead)

{

#ifdef USE_WINHTTP

	return WinHttpReadData(hRequest, buffer, length, cbRead);

#else

	return InternetReadFile(hRequest, buffer, length, cbRead);

#endif

}		

void CloseInternetHandle(HINTERNET hInternet)

{

	if (hInternet)

	{

#ifdef USE_WINHTTP

		WinHttpCloseHandle(hInternet);

#else

		InternetCloseHandle(hInternet);

#endif

	}

}bool HttpQuest(const CString &strUrl,const CString &strHeader,const CString &strPost,CString &strReturn,BOOL bPost)

{

	HINTERNET hSession = 0;

	HINTERNET hConnect = 0;

	HINTERNET hRequest = 0;



	LPCWSTR Url=strUrl.AllocSysString();

	// Test data

	CrackedUrl crackedUrl(Url);

	// Open session.

	hSession = OpenSession(L"User Agent");

	if (hSession == NULL) 

	{

		printf("Error:Open session!\n");

		return -1;

	}

	// Connect.

	hConnect = Connect(hSession, crackedUrl.GetHostName(), crackedUrl.GetPort());

	if (hConnect == NULL) 

	{

		printf("Error:Connect failed!\n");

		return -1;

	}

	// Open request.

	LPCWSTR strPostOrGet;

	if (bPost)

	{

		CString strTmp("POST");

		strPostOrGet=strTmp.AllocSysString();

	}		

	else

	{

		CString strTmp("GET");

		strPostOrGet=strTmp.AllocSysString();

	}

	hRequest = OpenRequest(hConnect,strPostOrGet,crackedUrl.GetPath(), crackedUrl.GetScheme());

	if (hRequest == NULL) 

	{

		printf("Error:OpenRequest failed!\n");

		return -1;

	}

	// Add request header.	

	LPCWSTR strHeaderW = strHeader.AllocSysString();

	if (!AddRequestHeaders(hRequest, strHeaderW)) 

	{

		printf("Error:AddRequestHeaders failed!\n");

		return -1;

	}

	// Send post data.

	CStringA strPostData(strPost);

	if (!SendRequest(hRequest, (const char*)strPostData, strPostData.GetLength())) 

	{

		printf("Error:SendRequest failed!\n");

		return -1;

	}

	// End request

	if (!EndRequest(hRequest)) 

	{

		printf("Error:EndRequest failed!\n");

		return -1;

	}

	char szBuf[BUF_SIZE];

	DWORD dwSize = 0;

	szBuf[0] = 0;

	// Query header info.

#ifdef USE_WINHTTP

	int contextLengthId = WINHTTP_QUERY_CONTENT_LENGTH;

	int statusCodeId = WINHTTP_QUERY_STATUS_CODE;

	int statusTextId = WINHTTP_QUERY_STATUS_TEXT;

#else

	int contextLengthId = HTTP_QUERY_CONTENT_LENGTH;

	int statusCodeId = HTTP_QUERY_STATUS_CODE;

	int statusTextId = HTTP_QUERY_STATUS_TEXT;

#endif

	dwSize = BUF_SIZE;

	if (QueryInfo(hRequest, contextLengthId, szBuf, &dwSize)) 

	{

		szBuf[dwSize] = 0;

		printf("Content length:[%s]\n", szBuf);

	}

	dwSize = BUF_SIZE;

	if (QueryInfo(hRequest, statusCodeId, szBuf, &dwSize))

	{

		szBuf[dwSize] = 0;

		printf("Status code:[%s]\n", szBuf);

	}

	dwSize = BUF_SIZE;

	if (QueryInfo(hRequest, statusTextId, szBuf, &dwSize)) 

	{

		szBuf[dwSize] = 0;

		printf("Status text:[%s]\n", szBuf);

	}

	// read data.

	for (;;) 

	{

		dwSize = BUF_SIZE;

		if (ReadData(hRequest, szBuf, dwSize, &dwSize) == FALSE)

			break;		

		if (dwSize <= 0) 

			break;		

		szBuf[dwSize] = 0;

		printf("%s\n", szBuf); 

		strReturn=(CString)szBuf;

	}

	CloseInternetHandle(hRequest);

	CloseInternetHandle(hConnect);

	CloseInternetHandle(hSession);

}