我正在尝试通过 Winsock2 HTTP Post 上传 PNG 文件。这是我的请求字符串:
boundary = "-----rueldotme";
request += "POST " + uri + " HTTP/1.1\r\n";
request += "Host: " + hostname + "\r\n";
request += "User-Agent: " + UserAgent + "\r\n";
request += "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n";
request += "Accept-Language: en-us,en;q=0.5\r\n";
request += "Accept-Encoding: gzip,deflate\r\n";
request += "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\n";
request += "Keep-Alive: 115\r\n";
request += "Connection: keep-alive\r\n";
request += "Content-Length: " + fileSize + "\r\n";
request += "Content-Type: multipart/form-data, boundary=" + boundary + "\r\n";
request += "\r\n";
request += "--" + boundary + "\r\n";
request += "Content-Disposition: form-data; name=\"filename\"; filename=\"" + fileName + "\"\r\n";
request += "Content-Type: image/png; charset=binary\r\n";
request += "Content-Transfer-Encoding: binary\r\n";
request += "\r\n";
request += "%s\r\n";
request += "\r\n";
连接正常,没有错误等,fileCon
顺便说一句来自ReadFile()
. 并且没有错误代码。读取的字节数与 的输出相同GetFileSize()
。我尝试显示的内容,fileCon
但只给了我这个:
不要介意标题“错误”(我设置了它)。
此外,该请求需要很长时间才能完成,并且给了我一个空白回复。是的,没有 HTTP 标头的空白。我的请求正确吗?我真的应该在 POST 数据中包含文件内容吗?
提前致谢。
编辑:PNG 大小约为 256KB。我的连接速度为 1mbps。
编辑:对不起,如果信息不足。无论如何,这是我最近所做的:
int flz;
char bdata[BSIZE];
DWORD dwe, bytesRead = 0;
HANDLE fh = CreateFile(fileName.c_str(), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
LPVOID fbuff = NULL;
flz = GetFileSize(fh, NULL);
fbuff = malloc(flz);
ReadFile(fh, fbuff, flz, &bytesRead, NULL));
...
sprintf_s(bdata, BSIZE, request.c_str(), reinterpret_cast<char *>(fbuff)); //BSIZE = 1024
...
send(sock, bdata, std::strlen(bdata), 0);