Question

我不是用C ++编程，但是我要求有人这样做，所以如果我的问题很简单或愚蠢，我很抱歉。

我需要一个使用HttpOpenRequest/HttpSendRequest对象的简单示例，以便将JSON数据发送到某个Web服务/网站。

谢谢

Answer 1

这是一个将JSON字符串发送到http://hostname/path/scriptname的非常简单的示例。您将需要根据需要添加正确的错误检查，状态代码检查等：

HINTERNET hInternet = InternetOpen(_T("MyApp"), INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0);

HINTERNET hConnect = InternetConnect(hInternet, _T("hostname"), INTERNET_DEFAULT_HTTP_PORT, NULL, NULL, INTERNET_SERVICE_HTTP, 0, 0);

LPTSTR rgpszAcceptTypes[] = {_T("application/json"), NULL};
HINTERNET hRequest = HttpOpenRequest(hConnect, _T("POST"), _T("/path/scriptname"), NULL, NULL, rgpszAcceptTypes, 0, 0);

HttpAddRequestHeaders(hRequest, _T("Content-Type: application/json\r\n"), -1, HTTP_ADDREQ_FLAG_ADD);

char *JsonData = "..."; // your actual JSON data here
HttpSendRequest(hRequest, NULL, 0, JsonData, strlen(JsonData))

DWORD StatusCode = 0;
DWORD StatusCodeLen = sizeof(StatusCode);
HttpQueryInfo(hRequest, HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER, &StatusCode, &StatusCodeLen, NULL);

if (StatusCode == 200)
{
    // use InternetQueryDataAvailable() and InternetReadFile()
    // to read any response data as needed...
}

InternetCloseHandle(hRequest);
InternetCloseHandle(hConnect);
InternetCloseHandle(hInternet);

通过HttpOpenRequest发送JSON数据

1 个答案: