如何发请求到某服务器

[chiengod]

我要发一个请求http://www.xxx.com/?num=111，
然后服务器返回一个值
要如何？我没做过网络方面，请有经验的赐教！

[liwashington]

sSoc = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (INVALID_SOCKET == sSoc)
{
return;
}

ZeroMemory(&Addr, sizeof(Addr));
Addr.sin_addr.S_un.S_addr = ulAddr;
Addr.sin_family = AF_INET;
Addr.sin_port = htons(nPort);

if (connect(sSoc, (sockaddr *)&Addr, sizeof(Addr)) == SOCKET_ERROR)
{
#ifdef _DEBUG
MessageBox(NULL, "DownloadSpecificFile - connect error", "Error", MB_OK);
#endif
closesocket(sSoc);
return;
}

ZeroMemory(szBuf, sizeof(szBuf));
strcpy(szBuf, "GET ");
strcat(szBuf, pFileName);
//strcat(szBuf, " HTTP/1.1\r\nHost: 192.168.0.1\r\n\r\n");
strcat(szBuf, " HTTP/1.1\r\nHost: ");
strcat(szBuf, pAddress);
strcat(szBuf, "\r\n\r\n");

nRet = send(sSoc, szBuf, strlen(szBuf), 0);
if (SOCKET_ERROR == nRet)
{
closesocket(sSoc);
return;
}

ZeroMemory(szBuf, sizeof(szBuf));
nRet = recv(sSoc, szBuf, sizeof(szBuf) - 1, 0);
--------------------------------------------------------------------------
按以上代码稍做改动就行了

[chiengod]

难道非要用这种windows socket，不能用bcb对socket的什么封装控件吗

[chiengod]

ding一下！

[chiengod]

直接用ClientSocket可以发http://www.xxx.com/?num=111请求吗？

[COKING]

DWORD rt=0;
char buf[20]={0};

HINTERNET hinc;
//要添加wininet.lib文件
HINTERNET hurl;

hinc=InternetOpen("IE5",INTERNET_OPEN_TYPE_DIRECT,NULL,NULL,NULL);
hurl=InternetOpenUrl(hinc,"http://www.xxx.com/?num=111",NULL,NULL,NULL,NULL);

InternetReadFile(hurl,buf,20,&rt); //读返回值到buf ,数量rt

InternetCloseHandle(hurl);
InternetCloseHandle(hinc);