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发表于 2014-06-05 20:53 |显示全部楼层

回复 1# send_linux

前段时间想通过HTTP来上传文件，发生了一件奇葩事，，哈哈。。不多说直接上代码：
void COSBHTTPClient::UploadFile( TOSBDownloadParam& aParam, TDesC8& aContentType )

//aContentType  = “multipart/form-data; boundary=AaB03x”

{

      iClient->CancelTransaction();



      RFile rFile;

      RFs fs;

      if( KErrNone != fs.Connect() )

      {

            return;

      }

      //Open file where the stream text is

      TInt error = rFile.Open( fs, iDownloadParam->iFileName, EFileShareAny );//EFileRead );

      CleanupClosePushL( rFile );

      TInt size = -1;

      User::LeaveIfError( rFile.Size( size ) );

      HBufC8* aXmlBuffer = HBufC8::NewLC( size );

      TPtr8 bufPtr( aXmlBuffer->Des() );

      error = rFile.Read( bufPtr );

      CleanupStack:

op( aXmlBuffer ); // aXmlBuffer

CleanupStack:

opAndDestroy( &rFile ); // rFile

fs.Close();

_LIT8(KDataStart,"--AaB03x"

;

_LIT8(KCrlf,"\r\n"

;

_LIT8(KContent,"Content-Disposition: form-data; name='userfile'; filename='"

;

_LIT8(KFileCompletion,"'"

;

_LIT8(KContent2,"Content-Type: text/plain"

;

_LIT8(KContent3,"Content-Transfer-Encoding: binary"

;

_LIT8(KDataEnd,"--AaB03x--"

;



      HBufC8* iPostData = HBufC8::NewL( 650+ size );



      TPtr8 iPostDataPtr = iPostData->Des();

      iPostDataPtr.Zero();



      iPostDataPtr.Append(KCrlf);

      iPostDataPtr.Append(KDataStart);

      iPostDataPtr.Append(KCrlf);

      iPostDataPtr.Append(KContent);

//       iPostDataPtr.Append(aFname);

      iPostDataPtr.Append(KFileCompletion);

      iPostDataPtr.Append(KCrlf);

      iPostDataPtr.Append(KContent2);

      iPostDataPtr.Append(KCrlf);

      iPostDataPtr.Append(KContent3);

      iPostDataPtr.Append(KCrlf);

      iPostDataPtr.Append(KCrlf);

      iPostDataPtr.Append(bufPtr); //the file in binary

      iPostDataPtr.Append(KCrlf);

      iPostDataPtr.Append(KDataEnd);

      iPostDataPtr.Append(KCrlf);

      iClient->IssueHTTPPostL(URL, aContentType, iPostDataPtr);

      iObserver.ClientEvent( MOSBHTTPClientObserver::EEventConnecting );

}
复制代码void CClientEngine::IssueHTTPPostL( const TDesC8& aUri,

            const TDesC8& aContentType, const TDesC8& aBody )

{

      SetupConnectionL();

      // Parse string to URI

      TUriParser8 uri;

      TInt ret = uri.Parse( aUri );

      // Copy data to be posted into member variable; iPostData is used later in

      // methods inherited from MHTTPDataSupplier.

      delete iPostData;

      iPostData = aBody.AllocL();

      // Get request method string for HTTP POST

      RStringF method = iSession.StringPool().StringF(HTTP::EPOST, RHTTPSession::GetTable());

      // Open transaction with previous method and parsed uri. This class will

      // receive transaction events in MHFRunL and MHFRunError.

      iTransaction = iSession.OpenTransactionL( uri, *this, method );

      // Set headers for request; user agent, accepted content type and body's

      // content type.

      RHTTPHeaders hdr = iTransaction.Request().GetHeaderCollection();

      SetHeaderL( hdr, HTTP::EUserAgent, KUserAgent );

      SetHeaderL( hdr, HTTP::EAccept, KAccept );

      SetHeaderL( hdr, HTTP::EContentType, aContentType );

      // Set this class as an data supplier. Inherited MHTTPDataSupplier methods

      // are called when framework needs to send body data.

      MHTTPDataSupplier* dataSupplier = this;

      iTransaction.Request().SetBody( *dataSupplier );

      // Submit the transaction. After this the framework will give transaction

      // events via MHFRunL and MHFRunError.

      iTransaction.SubmitL();

}
复制代码void CClientEngine::MHFRunL( RHTTPTransaction aTransaction,

            const THTTPEvent& aEvent )

{

}
复制代码现在与服务器的连接可以成功，但是body总是传不上去，从log看MHFRunL的aEvent，走了下面3种状态
THTTPEvent::EGotResponseHeaders
THTTPEvent::EResponseComplete
THTTPEvent::ESucceeded
可是THTTPEvent::EGotResponseBodyData始终没有走到，自己总是以为上传失败，苦苦纠结了一个下午，，，最后才发现我是POST，不走THTTPEvent::EGotResponseBodyData，除非在POST给服务器的时候服务器还有返回信息才会走。。。。