C++使用CHttpFile实现Http请求

C++实现http请求的代码，参照网上的修改了下在mfc中使用

1、HttpClient.h

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////////////////////////////////////HttpClient.h

#ifndefHTTPCLIENT_H

#defineHTTPCLIENT_H

#include<afxinet.h>

#include<string>

usingnamespacestd;

#defineIE_AGENT_T("Mozilla/4.0(compatible;MSIE6.0;WindowsNT5.1;SV1;.NETCLR2.0.50727)")

//操作成功

#defineSUCCESS0

//操作失败

#defineFAILURE1

//操作超时www.it165.net

#defineOUTTIME2

classCHttpClient

{

public:

CHttpClient(LPCTSTRstrAgent=IE_AGENT);

virtual~CHttpClient(void);

intHttpGet(LPCTSTRstrUrl,LPCTSTRstrPostData,CString&strResponse);

intHttpPost(LPCTSTRstrUrl,LPCTSTRstrPostData,CString&strResponse);

intHttpPut(LPCTSTRstrUrl,LPCTSTRstrPostData,CString&strResponse);

private:

intExecuteRequest(intstrMethod,LPCTSTRstrUrl,LPCTSTRstrPostData,CString&strResponse);

voidClear();

private:

CInternetSession*m_pSession;

CHttpConnection*m_pConnection;

CHttpFile*m_pFile;

};

#endif//HTTPCLIENT_H

2、HttpClient.cpp

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//////////////////////////////////HttpClient.cpp

#include"stdafx.h"

#include"HttpClient.h"

#defineBUFFER_SIZE1024

#defineNORMAL_CONNECTINTERNET_FLAG_KEEP_CONNECTION

#defineSECURE_CONNECTNORMAL_CONNECT|INTERNET_FLAG_SECURE

#defineNORMAL_REQUESTINTERNET_FLAG_RELOAD|INTERNET_FLAG_DONT_CACHE

#defineSECURE_REQUESTNORMAL_REQUEST|INTERNET_FLAG_SECURE|INTERNET_FLAG_IGNORE_CERT_CN_INVALID

CHttpClient::CHttpClient(LPCTSTRstrAgent)

{

m_pSession=newCInternetSession(strAgent);

m_pConnection=NULL;

m_pFile=NULL;

}

CHttpClient::~CHttpClient(void)

{

Clear();

if(NULL!=m_pSession)

{

m_pSession->Close();

deletem_pSession;

m_pSession=NULL;

}

}

voidCHttpClient::Clear()

{

if(NULL!=m_pFile)

{

m_pFile->Close();

deletem_pFile;

m_pFile=NULL;

}

if(NULL!=m_pConnection)

{

m_pConnection->Close();

deletem_pConnection;

m_pConnection=NULL;

}

}

intCHttpClient::ExecuteRequest(intstrMethod,LPCTSTRstrUrl,LPCTSTRstrPostData,CString&strResponse)

{

intresult=FAILURE;

//WCHAR*wPostData=strPostData.GetBuffer();

CStringstrServer;

CStringstrObject;

DWORDdwServiceType;

INTERNET_PORTnPort;

AfxParseURL(strUrl,dwServiceType,strServer,strObject,nPort);

if(AFX_INET_SERVICE_HTTP!=dwServiceType&&AFX_INET_SERVICE_HTTPS!=dwServiceType)

{

returnFAILURE;

}

try

{

m_pConnection=m_pSession->GetHttpConnection(strServer,

dwServiceType==AFX_INET_SERVICE_HTTP?NORMAL_CONNECT:SECURE_CONNECT,

nPort);

m_pFile=m_pConnection->OpenRequest(strMethod,strObject,

NULL,1,NULL,NULL,

(dwServiceType==AFX_INET_SERVICE_HTTP?NORMAL_REQUEST:SECURE_REQUEST));

/*设置请求相关参数*/

m_pFile->AddRequestHeaders(L"Accept:*/*,application/json");//accept请求报头域，表示客户端接受哪些类型的信息

m_pFile->AddRequestHeaders(L"Accept-Charset:UTF8");

m_pFile->AddRequestHeaders(L"Accept-Language:zh-cn;q=0.8,en;q=0.6,ja;q=0.4");

m_pFile->AddRequestHeaders(L"Content-Type:application/json");//content为实体报头域，格式及编码

//m_pFile->SendRequest(NULL,0,(LPVOID)(LPCTSTR)strPostData,strPostData==NULL?0:_tcslen(strPostData));

/*请求body内容先转为UTF-8编码，与服务端保持一致,cword为要发送内容*/

char*cword;//ANSI指针

if(strPostData!=NULL){

DWORDnum=WideCharToMultiByte(CP_UTF8,0,strPostData,-1,NULL,0,NULL,NULL);//計算這個UNICODE实际由几个UTF-8字組成

cword=(char*)calloc(num,sizeof(char));//申请空间

if(cword==NULL)//是否申请

{

free(cword);

}

memset(cword,0,num*sizeof(char));//初始化

WideCharToMultiByte(CP_UTF8,0,strPostData,-1,cword,num,NULL,NULL);

printf("content长度为%d\n",strlen(cword));

m_pFile->SendRequest(NULL,0,cword,strlen(cword));//发送请求

}

else{

m_pFile->SendRequest(NULL,0,NULL,0);//发送请求

}

DWORDdwRet;

m_pFile->QueryInfoStatusCode(dwRet);//查询执行状态

printf("HTTP_STATUS_code:%d\n",dwRet);

if(dwRet==HTTP_STATUS_OK){//http请求执行失败

result=SUCCESS;

}

/*保存http响应*/

charszChars[BUFFER_SIZE+1]={0};

stringstrRawResponse="";

UINTnReaded=0;

while((nReaded=m_pFile->Read((void*)szChars,BUFFER_SIZE))>0)

{

szChars[nReaded]='\0';

strRawResponse+=szChars;

memset(szChars,0,BUFFER_SIZE+1);

}

/*utf8转unicode*/

intunicodeLen=MultiByteToWideChar(CP_UTF8,0,strRawResponse.c_str(),-1,NULL,0);

WCHAR*pUnicode=newWCHAR[unicodeLen+1];

memset(pUnicode,0,(unicodeLen+1)*sizeof(wchar_t));

MultiByteToWideChar(CP_UTF8,0,strRawResponse.c_str(),-1,pUnicode,unicodeLen);

strResponse=pUnicode;//最终响应结果

//TRACE(strResponse+L"");

delete[]pUnicode;

pUnicode=NULL;

Clear();

}

catch(CInternetException*e)

{

Clear();

DWORDdwErrorCode=e->m_dwError;

e->Delete();

DWORDdwError=GetLastError();

printf("dwError=%d",dwError,0);

strResponse=L"CInternetException\n";

if(ERROR_INTERNET_TIMEOUT==dwErrorCode)

{

returnOUTTIME;

}

else

{

returnFAILURE;

}

}

returnresult;

}

intCHttpClient::HttpGet(LPCTSTRstrUrl,LPCTSTRstrPostData,CString&strResponse)

{

returnExecuteRequest(CHttpConnection::HTTP_VERB_GET,strUrl,NULL,strResponse);

}

intCHttpClient::HttpPost(LPCTSTRstrUrl,LPCTSTRstrPostData,CString&strResponse)

{

returnExecuteRequest(CHttpConnection::HTTP_VERB_POST,strUrl,strPostData,strResponse);

}

intCHttpClient::HttpPut(LPCTSTRstrUrl,LPCTSTRstrPostData,CString&strResponse)

{

returnExecuteRequest(CHttpConnection::HTTP_VERB_PUT,strUrl,strPostData,strResponse);

}