我无法使用我的代码：/
答案 0 :(得分：9)
最后我在web
上找到了一些有用的例子static char szRawData[5000];
memset(szRawData, 0x11, sizeof(szRawData));
//
// CIHandle is just a wrapper class for HINTERNET, that closes handle in destructor
//
CIHandle hIntrn = InternetOpen( "LiveUpdate"),
INTERNET_OPEN_TYPE_PRECONFIG_WITH_NO_AUTOPROXY,
NULL,
NULL,
0);
if (!hIntrn)
return printf("No Internet connection: %li.\n", GetLastError());
CIHandle hConn = InternetConnect( hIntrn,
"65.254.250.104",
INTERNET_DEFAULT_HTTP_PORT,
NULL,
NULL,
INTERNET_SERVICE_HTTP,
0,
NULL);
if (!hConn)
return printf("Connection to update server failed: %li.\n", GetLastError());
DWORD dwOpenRequestFlags = INTERNET_FLAG_IGNORE_REDIRECT_TO_HTTP |
INTERNET_FLAG_IGNORE_REDIRECT_TO_HTTPS |
INTERNET_FLAG_KEEP_CONNECTION |
INTERNET_FLAG_NO_AUTO_REDIRECT |
INTERNET_FLAG_NO_COOKIES |
INTERNET_FLAG_NO_CACHE_WRITE |
INTERNET_FLAG_NO_UI |
INTERNET_FLAG_RELOAD;
CIHandle hReq = HttpOpenRequest(hConn,
"POST",
"upload.php",
"HTTP/1.0",
NULL,
NULL,
dwOpenRequestFlags,
NULL);
ZString strBoundary = "---------------------------autoupdater";
ZString strContentHeader = "Host: www.mydomain_at_powweb.com\r\n"
"Content-Type: multipart/form-data; boundary=";
strContentHeader+=strBoundary;
HttpAddRequestHeaders(hReq, strContentHeader, strContentHeader.length(), HTTP_ADDREQ_FLAG_ADD);
ZString strHeaders;
strHeaders.precache(16384);
sprintf(strHeaders,
"--%s\r\n"
"Content-Disposition: form-data; name=\"userfile\"; "
"filename=\"test.raw\"\r\n"
"Content-Type: application/octet-stream\r\n\r\n",
(LPCTSTR)strBoundary);
tCharSeq s;//this is a just a dynamic array of bytes;
//
// append headers and file to request:
//
s.precache(16384);
s.append(strHeaders.length(), strHeaders);
//append with file data:
s.append(2000, szRawData); //<------------------- depending on this size, SendRequest fails.
//trailing end of data:
s.append(4,"\r\n--");
s.append(strBoundary.length(), (LPTSTR)strBoundary);
s.append(4,"--\r\n");
InternetSetOption(hReq, INTERNET_OPTION_USERNAME, "username\0", 9);
InternetSetOption(hReq, INTERNET_OPTION_PASSWORD, "password\0", 9);
if (!HttpSendRequest(hReq, NULL, 0, (void*)s.getBuffer(), s.length()))
return printf("HttpSendRequest failed: %li.\n", GetLastError());
答案 1 :(得分：1)
以下是微软的一个简单示例。
static TCHAR hdrs[] =
_T("Content-Type: application/x-www-form-urlencoded");
static TCHAR frmdata[] =
_T("name=John+Doe&userid=hithere&other=P%26Q");
static LPSTR accept[2]={"*/*", NULL};
// for clarity, error-checking has been removed
HINTERNET hSession = InternetOpen("MyAgent",
INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0);
HINTERNET hConnect = InternetConnect(hSession, _T("ServerNameHere"),
INTERNET_DEFAULT_HTTP_PORT, NULL, NULL, INTERNET_SERVICE_HTTP, 0, 1);
HINTERNET hRequest = HttpOpenRequest(hConnect, "POST",
_T("FormActionHere"), NULL, NULL, accept, 0, 1);
HttpSendRequest(hRequest, hdrs, strlen(hdrs), frmdata, strlen(frmdata));
// close any valid internet-handles
示例来自here。
答案 2 :(得分：1)
MSDN有一个很好的例子SAMPLE: Using HttpSendRequestEx for Large POST Requests
它还包含一个用于HTTP服务器接收数据的ASP文件，请在msdn页面下载自解压文件'Hsrex.exe'。
答案 3 :(得分：0)
我找不到如何在c / c ++中使用wininet的简单而完整的代码，因此我从零零碎碎地为将来访问并且无法弄清楚的人编写了一个简单的c代码。该代码可以上传您指定的主机名的任何文件（二进制，文本，mp3 ....），对于后端，我使用php（以下代码）。
#include<windows.h>
#include<stdio.h>
#include<wininet.h>
int main(int argc,char *argv[])
{
if(argc!=4)
{
printf("USAGE:fileuploader.exe hostname scriptname filename");
exit(1);
}
HANDLE hfile=CreateFile(argv[3],GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_EXISTING,0,NULL);
if(hfile==INVALID_HANDLE_VALUE)
{
printf("creatfile error %lu",GetLastError());
exit(1);
}
DWORD filesize=GetFileSize(hfile,NULL);
//STARTING PREPARING THE WININET CODE.
PCHAR szstart = "Content-Type: multipart/form-data; boundary=----qwerty";
PCHAR szData = "------qwerty\r\n"
"Content-Disposition: form-data; name=\"%s\"; filename=\"%s\"\r\n"
"Content-Type: application/octet-stream\r\n"
"Content-Transfer-Encoding: binary\r\n\r\n";
PCHAR szDataEnd = "\r\n------qwerty--\r\n";
char szheaders[1024];
wsprintf(szheaders,szData,"filetoupload",argv[3]);
HINTERNET hsession,hconnect,hrequest;
DWORD bytesread,byteswritten,contentlen;
hsession=InternetOpen("fileuploader",INTERNET_OPEN_TYPE_DIRECT,NULL,NULL,0);
if(!hsession)
{
printf("internet open error %lu",GetLastError());
exit(1);
}
hconnect=InternetConnect(hsession,argv[1],INTERNET_DEFAULT_HTTP_PORT,NULL,NULL,INTERNET_SERVICE_HTTP,0,0);
hrequest=HttpOpenRequest(hconnect,"POST",argv[2],NULL,NULL,0,0,0);
contentlen=lstrlen(szheaders)+filesize+lstrlen(szDataEnd);
LPBYTE pbuf=(LPBYTE)malloc(contentlen);
CopyMemory(&pbuf[0],szheaders,lstrlen(szheaders));
ReadFile(hfile,&pbuf[lstrlen(szheaders)],filesize,&bytesread,NULL);
CopyMemory(&pbuf[lstrlen(szheaders)+filesize],szDataEnd,lstrlen(szDataEnd));
HttpSendRequest(hrequest,szstart,lstrlen(szstart),pbuf,contentlen);
char testbuf[1024];
InternetReadFile(hrequest,testbuf,(DWORD)sizeof(testbuf),&byteswritten);
printf("%s",testbuf);
}
这是我与其一起使用的php代码
<?php
if(isset($_FILES["filetoupload"]))
{
$path="C:/xampp/htdocs/";
$path=$path.basename($_FILES['filetoupload']['name']);
print($path);
if(move_uploaded_file($_FILES['filetoupload']['tmp_name'],$path))
{
print("upload success");
}
else
{
print("no success");
}
}
?>
<html>
<body>
<form action="fileupload.php" method="post" enctype="multipart/form-data">
Select File:
<input type="file" name="filetoupload"/>
<input type="submit" value="Upload Image" name="submit"/>
</form>
</body>
</html>