轉自：http://hi.baidu.com/benbearlove/item/1671c23017575825b3c0c53f

環境:xp sp3,vs2008,在靜態庫中使用 MFC

1. #include <afxwin.h>
2. #include <stdio.h>
3. #include <windows.h>
4. #include <string>
5. #include "Wininet.h"
6. #pragma comment(lib,"Wininet.lib")
7. //模擬瀏覽器傳送HTTP請求函式
8. std::string HttpRequest(char * lpHostName,short sPort,
   char * lpUrl,char * lpMethod,char * lpPostData,int nPostDataLen)  
9. {  
10.     HINTERNET hInternet,hConnect,hRequest;  
11.     BOOL bRet;  
12.     std::string strResponse;  
13.     hInternet = (HINSTANCE)InternetOpen("User-Agent",INTERNET_OPEN_TYPE_PRECONFIG,NULL,NULL,0);  
14.     if(!hInternet)  
15.         goto Ret0;  
16.     hConnect = (HINSTANCE
    )InternetConnect(hInternet,lpHostName,sPort,NULL,"HTTP/1.1",INTERNET_SERVICE_HTTP,0,0);  
17.     if(!hConnect)  
18.         goto Ret0;  
19.     hRequest = (HINSTANCE)HttpOpenRequest(hConnect,lpMethod,lpUrl,"HTTP/1.1",NULL,NULL,INTERNET_FLAG_RELOAD,0);  
20.     if(!hRequest)  
21.         goto Ret0;  
22.     //bRet = HttpAddRequestHeaders(hRequest,"Content-Type: application/x-www-form-urlencoded",Len(FORMHEADERS),HTTP_ADDREQ_FLAG_REPLACE | HTTP_ADDREQ_FLAG_ADD);
23.     //if(!bRet)
24.         //goto Ret0;
25.     bRet = HttpSendRequest(hRequest,NULL,0,lpPostData,nPostDataLen);  
26.     while(TRUE)  
27.     {  
28.         char cReadBuffer[4096];  
29.         unsigned long lNumberOfBytesRead;  
30.         bRet = InternetReadFile(hRequest,cReadBuffer,sizeof(cReadBuffer) - 1,&lNumberOfBytesRead);  
31.         if(!bRet || !lNumberOfBytesRead)  
32.             break;  
33.         cReadBuffer[lNumberOfBytesRead] = 0;  
34.         strResponse = strResponse + cReadBuffer;  
35.     }  
36.  Ret0:  
37.     if(hRequest)  
38.         InternetCloseHandle(hRequest);  
39.     if(hConnect)  
40.         InternetCloseHandle(hConnect);  
41.     if(hInternet)  
42.         InternetCloseHandle(hInternet);  
43.     return strResponse;  
44. }  
45. void main()   
46. {   
47.     //CString strResponse = HttpRequest("translate.google.com",80,"/translate_t?langpair=en|zh-CN","POST","hl=zh-CN&ie=UTF-8&text=this is me&langpair=en|zh-CN",strlen("hl=zh-CN&ie=UTF-8&text=this is me&langpair=en|zh-CN"));
48.     std::string strResponse = HttpRequest("www.hao123.com",80,NULL,"GET",NULL,0);  
49.     FILE * fp = fopen("C:\\123.htm","wb");  
50.     fwrite(strResponse.c_str(),strResponse.length(),1,fp);  
51.     fclose(fp);  
52. }