效果：
在IDC_EDIT_HTTP_INPUT 输入http请求
在IDC_EDIT_HTTP_OUTPUT 反馈返回数据json格式的
void CTG_HelperDlg::OnBnClickedButtonSubmit()
{
CString str;
GetDlgItem(IDC_EDIT_HTTP_INPUT)->GetWindowText(str);
AppendToOutput(str);
CString rsp = L"";
CString post_data = L"";
ExecuteRequest(
L"GET",
str,
post_data,
rsp
);
TRACE("rsp:%s",rsp);
}
void CTG_HelperDlg::AppendToOutput(CString str)
{
str = _T("\r\n") + str;
CEdit* http_output_editbox = (CEdit*)GetDlgItem(IDC_EDIT_HTTP_OUTPUT);
//在末尾添加内容
int nCount = 0;
int nLastLineStart = 0;
int nLastLineEnd = 0;
nCount = http_output_editbox->GetLineCount(); //获取行数，包括回车行
//MessageBox(nCount);
nLastLineStart = http_output_editbox->LineIndex( nCount - 1 ); //获取字符数，许可多行
nLastLineEnd = nLastLineStart + http_output_editbox->LineLength(nLastLineStart);
http_output_editbox->SetSel( nLastLineEnd + 1, nLastLineEnd + 2 ); //设定光标选中的区域
http_output_editbox->ReplaceSel( str); //文字替换
TRACE(L"\nsend [%s] to engine",str);
//MessageBox(str);
}
CString CTG_HelperDlg::ExecuteRequest( LPCTSTR strMethod, LPCTSTR strUrl, CString strPostData, CString &strResponse )
{
CString strServer;
CString strObject;
DWORD dwServiceType;
INTERNET_PORT nPort;
strResponse = _T("");
CString strState = _T("");
AfxParseURL(strUrl, dwServiceType, strServer, strObject, nPort); //解析url
//判断协议类型是否为http或https
if(AFX_INET_SERVICE_HTTP != dwServiceType && AFX_INET_SERVICE_HTTPS != dwServiceType)
{
//LoggerCio::notice(LoggerCio::LOG_URL,"*** url 非http或https 协议！");//log输出
return _T("不是http协议");
}
try
{
//CHttpConnection *m_pConnection;//定义在头文件
//获取 CHttpConnection*
m_pConnection = sess.GetHttpConnection(strServer ,nPort);
//获取 CHttpFile*
m_pFile = m_pConnection->OpenRequest(strMethod, strObject,NULL, 1, NULL, NULL,INTERNET_FLAG_EXISTING_CONNECT);
m_pFile -> AddRequestHeaders( _T("Accept:application/json;"));
m_pFile -> AddRequestHeaders( _T("Content-Type:application/json;charset=utf-8;"));
m_pFile -> AddRequestHeaders( _T("Content-Type:multipart/form-data;"));
USES_CONVERSION;
char *pData = T2A(strPostData);
if (NULL == m_pFile)
{
//LOG_FUNC_QUIT_DEBUG(LOG_SYS);
return _T("Open Error！");
}
//发送请求
if(m_pFile->SendRequest(NULL, 0,pData,strlen(pData)))
{
char szChars[BUFFER_SIZE + 1] = {
0};
std::string strRawResponse = "";
UINT nReaded = 0;
CString str = _T("");
while ((nReaded = m_pFile->Read((void*)szChars, BUFFER_SIZE)) > 0)
{
//接收返回
szChars[nReaded] = '\0';
strRawResponse += szChars;
str = strRawResponse.c_str();
//strResponse = CallBackState(str, strPostData);
//AfxMessageBox(str, MB_ICONINFORMATION);
strState = strResponse;
memset(szChars, 0, BUFFER_SIZE + 1);
}
AppendToOutput(str);
//将多字符转宽字节存为 CString
int unicodeLen = MultiByteToWideChar(CP_UTF8, 0, strRawResponse.c_str(), -1, NULL, 0);
WCHAR *pUnicode = new WCHAR[unicodeLen + 1];
memset(pUnicode,0,(unicodeLen+1)*sizeof(wchar_t));
MultiByteToWideChar(CP_UTF8,0,strRawResponse.c_str(),-1, pUnicode,unicodeLen);
CString cs(pUnicode);
delete []pUnicode;
pUnicode = NULL;
strResponse = cs;
return strState; //成功
}
else{
//请求失败打印错误码
DWORD dwError = GetLastError();
//LoggerCio::notice(LoggerCio::LOG_URL,"*** m_pFile->SendRequest 失败，GetLastError=%d",dwError);
return _T("请求失败"); //错误
}
}
catch (CInternetException* e)
{
//捕获CInternetException异常
DWORD dwErrorCode = e->m_dwError;
e->Delete();
e = NULL;
strState = _T("4");
DWORD dwError = GetLastError();
return strState;
}
}