我使用wininet apis将HTTP POST发送到SSL服务器。我想使用P / Invoke将这些api包装到C#,因为C#中的原始代码。我如何将这些api包装到c#中。我试过但它没有奏效。我正在为Windows mobile和smatphones做这个。
LPCTSTR lpszAgent = _T("CeHttp");
DWORD dwError;
DWORD sizeInResult, sizeOutResult, sizeToWrite, sizeWritten,dwRead;
HINTERNET hInternet=NULL;
HINTERNET hConnect=NULL;
HINTERNET hRequest=NULL;
LPDWORD pSizeInResult = &sizeInResult;
LPDWORD pSizeOutResult = &sizeOutResult;
LPDWORD pSizeToWrite = &sizeToWrite;
LPDWORD pSizeWritten = &sizeWritten;
hInternet=InternetOpen(lpszAgent,INTERNET_OPEN_TYPE_PRECONFIG,NULL,INTERNET_INVALID_PORT_NUMBER,0);
if(!hInternet)
{
dwError = GetLastError();
}
LPCTSTR lpszServerName = _T("mundusync");
INTERNET_PORT nServerPort =444;
LPCTSTR lpszUserName = L"";
LPCTSTR lpszPassword = L"";
DWORD dwConnectFlags = 0;
DWORD dwConnectContext = 0;
DWORD dwCode = NULL;
DWORD dwSize = 8000;
char charBuffer[1000];
TCHAR szBuffer[1000];
int read = 0;
char* str = "*/*", buff[1024] = {};
hConnect = InternetConnect(hInternet,L"s-syncml.geodesic.net",
nServerPort,
L"",
L"",
INTERNET_SERVICE_HTTP,
0,
0);
if(! hConnect)
{
dwError = GetLastError();
}
LPCWSTR lpszVerb = _T("POST");
LPCWSTR lpszObject = L"/";
LPCWSTR lpszVersion = NULL;
LPCWSTR lpszReferer = NULL;
LPCWSTR *lplpszAcceptTypes = NULL;
DWORD dwFlags = INTERNET_FLAG_SECURE |
INTERNET_FLAG_IGNORE_CERT_CN_INVALID|
INTERNET_FLAG_IGNORE_CERT_DATE_INVALID;
DWORD dwOpenRequestContext = 0;
hRequest=HttpOpenRequest(hConnect,L"POST",L"/",HTTP_VERSION,L"",lplpszAcceptTypes,dwFlags,dwOpenRequestContext);
if(!hRequest )
{
dwError = GetLastError();
}
char lpPostData[637] ="<SyncML> some post data </SyncML>";
LPCWSTR lpszHeaders =_T("Content-Type: application/vnd.xyz+xml");
BOOL bResult;
if(!HttpSendRequest(hRequest,lpszHeaders,wcslen(lpszHeaders),lpPostData,strlen(lpPostData)))
{
dwError = GetLastError();
}
if (!(InternetQueryDataAvailable (hRequest, pSizeInResult, 0, 0)))
{
//wsprintf (dwError, TEXT("%s: %x"), TEXT("InternetQueryDataAvailableError"), GetLastError());
return;
//WriteFile (hFile, szErrMsg, sizeToWrite, pSizeWritten, NULL);
//goto error;
}
if (sizeInResult >= 1024)
{
int num = sizeInResult / 1024;
do
{
//InternetReadFile (hRequest, lpBuffer, 1024, pSizeOutResult);
// WriteFile (hFile, lpBuffer, sizeOutResult, pSizeWritten, NULL);
}
while (--num > 0);
}
else
{
//InternetReadFile (hRequest, lpBuffer, sizeInResult, pSizeOutResult);
// WriteFile (hFile, lpBuffer, sizeOutResult, pSizeWritten, NULL);
do
{
// read from Internet HTTP server
if(InternetReadFile(hRequest, charBuffer,
1000, &dwRead))
{
// convert to Unicode and display
charBuffer[dwRead] = '\0';
mbstowcs(szBuffer, charBuffer, dwRead);
//cout « szBuffer;
szBuffer[dwRead] = '\0';
}
} while(dwRead > 0);
}
if(!hInternet)
InternetCloseHandle(hInternet);
if(!hConnect)
InternetCloseHandle(hConnect);
if(!hRequest)
InternetCloseHandle(hRequest);
答案 0 :(得分:2)
您应该查看P/Invoke website。它们列出了众所周知的DLL的所有P / Invoke定义,特别是“wininet”。您还可以找到示例代码。
答案 1 :(得分:1)
如果要重用本机代码,可以公开一个函数,该函数将服务器名称和端口作为输入参数,并返回读取的数据。然后可以在C#中调用此本机函数:
[DllImport("yourlib.dll")]
static extern string FetchData(string host, int port);
另一种选择是使用.NET内置类来实现类似的功能:
var request = (HttpWebRequest)WebRequest.Create("http://s-syncml.geodesic.net:444");
request.UserAgent = "CeHttp";
var response = request.GetResponse();
using (var stream = response.GetResponseStream())
using (var reader = new StreamReader(stream))
{
string result = reader.ReadToEnd();
}