C++ POST方式访问网页

bool PostContent(CString strUrl, const CString &strPara, CString &strContent, CString &strDescript)//第一个参数为URL头

{ //第二个参数为要post表单的内容

try{ //第三个参数用于保存页面返回的信息

//第四个参数用于记录日志

strDescript = "提交成功完成！";

bool bRet = false;

CString strServer, strObject, strHeader, strRet;

unsigned short nPort;

DWORD dwServiceType;

if(!AfxParseURL www.90168.org (strUrl, dwServiceType, strServer, strObject, nPort))

{

strDescript = strUrl + "不是有效有网络地址！";

return false;

}

CInternetSession sess;//Create session

CHttpFile pFile;

//////////////////////////////////////////////

CHttpConnection pServer = sess.GetHttpConnection(strServer, nPort);

if(pServer == NULL)

{

strDescript = "对不起，连接服务器失败！";

return false;

}

pFile = pServer->OpenRequest(CHttpConnection::HTTP_VERB_POST,strObject,NULL,1,NULL,NULL,INTERNET_FLAG_EXISTING_CONNECT);

if(pFile == NULL)

{

strDescript = "找不到网络地址" + strUrl;

return false;

}

pFile -> AddRequestHeaders("Content-Type: application/x-www-form-urlencoded");

pFile -> AddRequestHeaders("Accept: /");

pFile -> SendRequest(NULL, 0, (LPTSTR)(LPCTSTR)strPara, strPara.GetLength());

CString strSentence;

DWORD dwStatus;

DWORD dwBuffLen = sizeof(dwStatus);

BOOL bSuccess = pFile->QueryInfo(

HTTP_QUERY_STATUS_CODE|HTTP_QUERY_FLAG_NUMBER,

&dwStatus, &dwBuffLen);

if( bSuccess && dwStatus>= 200 && dwStatus<300)

{

char buffer[256];

memset(buffer, 0, 256);

int nReadCount = 0;

while((nReadCount = pFile->Read(buffer, 2048)) > 0)

{

strContent += buffer;

memset(buffer, 0, 256);

}

bRet = true;

}

else

{

strDescript = "网站服务器错误" + strUrl;

bRet = false;

}

////////////////////////////////////////

pFile->Close();

sess.Close();

return bRet;

}

catch(...)

{

int nCode = GetLastError();

strDescript.Format("向服务器post失败！错误号：%d", nCode);

return false;

}

}
原文链接: https://www.cnblogs.com/tianshifu/p/6379715.html

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