C++ winhttp

bljswpu 2014-12-26 11:51:34

现在我通过浏览器想服务器post数据服务器受到数据后有返回给浏览器



HTTP_RESPONSE   response;

    DWORD           result;

    DWORD           bytesSent;

    PUCHAR          pEntityBuffer;

    ULONG           EntityBufferLength;

    ULONG           BytesRead;

    ULONG           TempFileBytesWritten;

    HANDLE          hTempFile;

    TCHAR           szTempName[MAX_PATH + 1];

    CHAR            szContentLength[MAX_ULONG_STR];

    HTTP_DATA_CHUNK dataChunk;

    ULONG           TotalBytesRead = 0;

	ULONG pSend = 0;



 EntityBufferLength = 2048;

    pEntityBuffer      = (PUCHAR) ALLOC_MEM( EntityBufferLength );

	memset(pEntityBuffer, 0, EntityBufferLength);



 INITIALIZE_HTTP_RESPONSE(&response, 200, "OK");

	ADD_KNOWN_HEADER(response, HttpHeaderContentType, "text/html");



sprintf_s(szContentLength, MAX_ULONG_STR, "%lu", TotalBytesRead);



                    ADD_KNOWN_HEADER(

                            response, 

                            HttpHeaderContentLength, 

                            szContentLength

                            );



					response.pEntityChunks = 0;

					response.EntityChunkCount = 0;

                    result = 

                        HttpSendHttpResponse(

                               hReqQueue,           // ReqQueueHandle

                               pRequest->RequestId, // Request ID

                               HTTP_SEND_RESPONSE_FLAG_MORE_DATA,

                               &response,       // HTTP response

                               NULL,            // pReserved1

                               &bytesSent,      // bytes sent-optional

                               NULL,            // pReserved2

                               0,               // Reserved3

                               NULL,            // LPOVERLAPPED

                               NULL             // pReserved4

                               );



                    if(result != NO_ERROR)

                    {

                        wprintf(

                           L"HttpSendHttpResponse failed with %lu \n", 

                           result

                           );

                        goto Done;

                    }



dataChunk.DataChunkType = HttpDataChunkFromMemory;

					dataChunk.FromMemory.pBuffer = "\r\n0\r\n";

					dataChunk.FromMemory.BufferLength = 5;

                    result = HttpSendResponseEntityBody(

                                hReqQueue,

                                pRequest->RequestId,

                                0,           // 0 This is the last send.

                                1,           // Entity Chunk Count.

                                &dataChunk,

                                &pSend,

                                NULL,

                                0,

                                NULL,

                                NULL

                                );



                    if(result != NO_ERROR)

                    {

                       wprintf(

                          L"HttpSendResponseEntityBody failed %lu\n", 

                          result

                          );

                    }



                    goto Done;



                    break;

但是返回数据给浏览器后浏览器没有数据显示出来

<html><body><script type="text/javascript">

var request = new XMLHttpRequest();

alert("sss");

request.open('POST', 'http://127.0.0.1:80/test', false);

alert('Welcome to\ndreamdu!');

request.send("hello");

if (200 == request.status) {

alert (request.responseText);

}

alert("Hello dreamdu!");

alert (request.status);

</script></body></html>

这是前端的代码刚开始接触winhttp 就大神请教

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