MFC如何讲图片上传到 http://169.254.1.10:8090/api/v1/~bali/ABC0123456789

MFC可以使用WinINet库来实现图片上传功能。以下是一个示例代码：

#include <afxinet.h>

BOOL UploadImage(LPCTSTR imagePath)
{
    HINTERNET hInternet = InternetOpen(_T("MFC App"), INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0);
    if (hInternet == NULL)
    {
        return FALSE;
    }

    HINTERNET hConnect = InternetConnect(hInternet, _T("169.254.1.10"), 8090, NULL, NULL, INTERNET_SERVICE_HTTP, 0, 0);
    if (hConnect == NULL)
    {
        InternetCloseHandle(hInternet);
        return FALSE;
    }

    HINTERNET hRequest = HttpOpenRequest(hConnect, _T("POST"), _T("/api/v1/~bali/ABC0123456789"), NULL, NULL, NULL, 0, 0);
    if (hRequest == NULL)
    {
        InternetCloseHandle(hConnect);
        InternetCloseHandle(hInternet);
        return FALSE;
    }

    CString fileName = PathFindFileName(imagePath);
    CString contentType = _T("image/jpeg");
    CString boundary = _T("boundary1234567890");

    CString header;
    header.Format(_T("Content-Type: multipart/form-data; boundary=%s"), boundary);
    HttpAddRequestHeaders(hRequest, header, -1, HTTP_ADDREQ_FLAG_ADD);

    CString body;
    body += _T("--") + boundary + _T("\r\n");
    body += _T("Content-Disposition: form-data; name=\"file\"; filename=\"") + fileName + _T("\"\r\n");
    body += _T("Content-Type: ") + contentType + _T("\r\n\r\n");

    CString footer;
    footer.Format(_T("\r\n--%s--\r\n"), boundary);

    DWORD fileSize = GetFileSize(imagePath);
    DWORD totalSize = body.GetLength() + fileSize + footer.GetLength();

    CString contentLength;
    contentLength.Format(_T("Content-Length: %u"), totalSize);
    HttpAddRequestHeaders(hRequest, contentLength, -1, HTTP_ADDREQ_FLAG_ADD);

    BOOL result = HttpSendRequest(hRequest, NULL, 0, (LPVOID)(LPCTSTR)body, body.GetLength());
    if (result)
    {
        HANDLE hFile = CreateFile(imagePath, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
        if (hFile != INVALID_HANDLE_VALUE)
        {
            BYTE buffer[1024];
            DWORD bytesRead = 0;
            DWORD bytesWritten = 0;
            while (ReadFile(hFile, buffer, sizeof(buffer), &bytesRead, NULL) && bytesRead > 0)
            {
                result = InternetWriteFile(hRequest, buffer, bytesRead, &bytesWritten);
                if (!result)
                {
                    break;
                }
            }
            CloseHandle(hFile);
        }
        else
        {
            result = FALSE;
        }

        if (result)
        {
            result = InternetWriteFile(hRequest, footer, footer.GetLength(), NULL);
        }
    }

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

    return result;
}

DWORD GetFileSize(LPCTSTR filePath)
{
    DWORD fileSize = 0;
    HANDLE hFile = CreateFile(filePath, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
    if (hFile != INVALID_HANDLE_VALUE)
    {
        fileSize = GetFileSize(hFile, NULL);
        CloseHandle(hFile);
    }
    return fileSize;
}

在上面的代码中，`UploadImage`函数接受一个图片文件的路径作为参数，然后使用WinINet库创建一个HTTP连接，并发送POST请求来上传图片。其中，`GetFileSize`函数用来获取文件大小，`boundary`用来分隔多个HTTP部分，`body`和`footer`分别表示HTTP请求的头部和尾部，`contentLength`表示HTTP请求的正文长度。注意，这个示例代码中使用的是multipart/form-data格式上传文件，因此需要在HTTP头部中指定Content-Type为multipart/form-data，并在正文中使用boundary来分隔每个部分。在本例中，包含两个部分，一个是文件的元数据，另一个是文件内容。最后，发送HTTP请求并写入文件内容即可上传文件。