http请求，获取数据的问题

[roro0811]

情况是这样的：
我需要向公司的服务器发送一个http请求，里面还带有一些参数，例如这样：
http://192.168.1.205/index.php?do=getdata&type=event
服务器解析这些参数后，会回一些数据给我
问题是：我怎么才能收到来自服务器的数据？

wininet那套函数可以吗？比如HttpSendRequest

谢谢大家了，我所有的分都在这了！

[PL23K]

使用 CInternetSession 我刚提了个类似的问题
#include <afxinet.h> 文件头CInternetSession
CInternetSession session;
CHttpFile *file = NULL;
CString strURL = "http://www.02314.com";//注意URL里http前不能有空格
CString strHtml = ""; //存放网页数据
try{
file = (CHttpFile*)session.OpenURL(strURL);
}catch(CInternetException * m_pException){
file = NULL;
m_pException->m_dwError;
m_pException->Delete();
session.Close();
MessageBox("CInternetException");
}
CString strLine;
if(file != NULL){
while(file->ReadString(strLine) != NULL){
strHtml += strLine;
}
}else{
MessageBox("fail");
}
session.Close();
file->Close();
delete file;
file = NULL;
参考 :http://www.hhuj4.com/a/xuexiziyuan/2010/0826/178.html

[xengine-qyt]

socket 很简单，最进也在做这个项目

socket直接 recv 就可以获取 建议用socket

[skyfree]

没错，用wininet，msdn上就有例子，实现起来不难。不要用socket!

[skyfree]

下面是msdn上的一个例子，当然有很多不同的写法。
个人最推荐你用libcurl,很不错。我用了以后就不再用wininet了

int WINAPI Dumper(HWND hX, int intCtrlID, HINTERNET hResource)
{
    LPTSTR lpszData;    // buffer for the data
    DWORD  dwSize;       // size of the data available
    DWORD  dwDownloaded; // size of the downloaded data
    DWORD  dwSizeSum=0;  // size of the data in the textbox
    LPTSTR lpszHolding;  // buffer to merge the textbox data and buffer

    // Set the cursor to an hourglass.
    SetCursor(LoadCursor(NULL,IDC_WAIT));

    // This loop handles reading the data.  
    do
    {
        // The call to InternetQueryDataAvailable determines the
		      // amount of data available to download.
        if (!InternetQueryDataAvailable(hResource,&dwSize,0,0))
        {
            printf("InternetQueryDataAvailable failed (%d)\n", GetLastError());
            SetCursor(LoadCursor(NULL,IDC_ARROW));
            return FALSE;
        }
        else
        {    
            // Allocate a buffer of the size returned by
            // InternetQueryDataAvailable.
            lpszData = new TCHAR[dwSize+1];

            // Read the data from the HINTERNET handle.
            if(!InternetReadFile(hResource,
                                 (LPVOID)lpszData,
                                 dwSize,
                                 &dwDownloaded))
            {
                printf("InternetReadFile failed (%d)\n", GetLastError());
                delete[] lpszData;
                break;
            }
            else
            {
                // Add a null terminator to the end of the data buffer
                lpszData[dwDownloaded]='\0';

                // Allocate the holding buffer.
                lpszHolding = new TCHAR[dwSizeSum + dwDownloaded + 1];
                    
                // Check if there has been any data written 
                // to the textbox.
                if (dwSizeSum != 0)
                {
                    // Retrieve the data stored in the textbox if any
                    GetDlgItemText(hX,intCtrlID,
                                   (LPTSTR)lpszHolding,
                                   dwSizeSum);
                         
                    // Add a null terminator at the end of the 
                    // textbox data.
                    lpszHolding[dwSizeSum]='\0';
                }
                else
                {
                    // Make the holding buffer an empty string. 
                    lpszHolding[0]='\0';
                }
					
                size_t cchDest = dwSizeSum + dwDownloaded + dwDownloaded + 1;
                LPTSTR* ppszDestEnd = 0;
                size_t* pcchRemaining = 0;

                // Add the new data to the holding buffer
                HRESULT hr = StringCchCatEx(lpszHolding, 
                                            cchDest, 
                                            lpszData,
                                            ppszDestEnd, 
                                            pcchRemaining, 
                                            STRSAFE_NO_TRUNCATION);
            
                if(SUCCEEDED(hr))
                {
                    // Write the holding buffer to the textbox.
                    SetDlgItemText(hX,intCtrlID,(LPTSTR)lpszHolding);

                    // Delete the two buffers.
                    delete[] lpszHolding;
                    delete[] lpszData;

                    // Add the size of the downloaded data to the 
                    // textbox data size.
                    dwSizeSum = dwSizeSum + dwDownloaded + 1;

                    // Check the size of the remaining data.  
                    // If it is zero, break.
                    if (dwDownloaded == 0)
        	                break;
                    else
                    {
                    //  TODO: Insert error handling code here.
                    }
                }
            }
        }  
    }  
    while(TRUE);

    // Close the HINTERNET handle.
    InternetCloseHandle(hResource);

    // Set the cursor back to an arrow.
    SetCursor(LoadCursor(NULL,IDC_ARROW));

    return TRUE;
}