|
 CHttpFile实现Get/Post |
| CHttpFile实现Get/Post
一、GET 数据，下载网页，文件等，用于可下载的文件，不能用于服务端运行的程序，比如.aspx文件等，否则会返回500错误。
CString strSentence, strWriteName="1.htm"; CString strFileName="http://localhost/InDesign/" + strWriteName;
CInternetSession sess; CHttpFile* fileGet; try { fileGet=(CHttpFile*)sess.OpenURL(strFileName); } catch(CException* e) { fileGet = 0; throw; }
if(fileGet) { DWORD dwStatus; DWORD dwBuffLen = sizeof(dwStatus); BOOL bSuccess = fileGet->QueryInfo(HTTP_QUERY_STATUS_CODE|HTTP_QUERY_FLAG_NUMBER, &dwStatus, &dwBuffLen);
if( bSuccess && dwStatus>= 200&& dwStatus<300 ) { CStdioFile fileWrite; if(fileWrite.Open(strWriteName, CFile::modeWrite|CFile::modeCreate)) { while(fileGet->ReadString(strSentence)) { fileWrite.WriteString(strSentence+"\n"); } fileWrite.Close(); AfxMessageBox("下载完毕"); } else { AfxMessageBox("本地文件"+strWriteName+"打开出错."); } } else { strSentence.Format("打开网页文件出错，错误码：%d", dwStatus); AfxMessageBox(strSentence); } fileGet->Close(); delete fileGet; } else AfxMessageBox("不能找到网页文件！");
sess.Close();
二、POST 数据，比如用于提交注册信息等
CString strHttpName="http://localhost/TestReg/RegForm.aspx"; // 需要提交数据的页面 CString strFormData = "username=abc&password=123"; // 需要提交的数据
CInternetSession sess; CHttpFile* fileGet; CString strHeaders = _T("Content-Type: application/x-www-form-urlencoded"); // 请求头
try { fileGet=(CHttpFile*)sess.OpenURL(strHttpName);//打开文件 } catch(CException* e) { fileGet = 0; throw; }
CString strSentence, strGetSentence = ""; if(fileGet) { DWORD dwStatus; DWORD dwBuffLen = sizeof(dwStatus); BOOL bSuccess = fileGet->QueryInfo(HTTP_QUERY_STATUS_CODE|HTTP_QUERY_FLAG_NUMBER, &dwStatus, &dwBuffLen); if( bSuccess && dwStatus>= 200 &&dwStatus<300 ) { BOOL result = fileGet->SendRequest(strHeaders, (LPVOID)(LPCTSTR)strFormData, strFormData.GetLength()); while(fileGet->ReadString(strSentence)) // 读取提交数据后的返回结果 { strGetSentence = strGetSentence + strSentence + char(13) + char(10); } AfxMessageBox(strGetSentence); // 显示返回网页内容 } else { strSentence.Format("POST出错，错误码：%d", dwStatus); AfxMessageBox(strSentence); } fileGet->Close(); delete fileGet; } else AfxMessageBox("不能找到网页文件！");
sess.Close();
补充: void xx(void) { CHAR szReceiveBuffer[36000]; memset(szReceiveBuffer,0,36000); char *req="POST HTTP/1.0\r\n" "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/vnd.ms-excel, application/msword, application/vnd.ms-powerpoint, */*\r\n" "Accept-Language: en-us\r\n" "Accept-Encoding: gzip, deflate\r\n" "User-Agent: Mozilla/4.0\r\n" "Content-Length: 34\r\n" "Host: 127.0.0.1\r\n" "Content-Type: application/x-www-form-urlencoded\r\n\r\n"; LPSTR lpOptions="user=admin&Pwd=admin&submit=提交"; CInternetSession cInternetSession; CHttpConnection * pHttpConnection = cInternetSession.GetHttpConnection(_T("127.0.0.1"), (INTERNET_PORT)80); CHttpFile * pHttpFile = pHttpConnection->OpenRequest("POST", _T("/admin/test.asp")); pHttpFile->AddRequestHeaders(req); pHttpFile->SendRequest(0,0, (LPVOID) lpOptions, (DWORD)strlen(lpOptions)); pHttpFile->Read(szReceiveBuffer, 36000); cInternetSession.Close(); //CString hh=szReceiveBuffer; //if(hh.Find("您输入了错误的帐号或",0)) MessageBox(szReceiveBuffer); return ; }
本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/taixi1268/archive/2009/04/13/4069881.aspx | |
|
|
| 回复:CHttpFile实现Get/Post |
|
cc(游客)发表评论于2009/12/23 14:06:23 |
|
|
|
» 1 »
|
|
|
