wininet 提交表单content_lenght始终为0

[jobsccnu]

下面是我的一个完整的登录，发帖的过程，
现在登录已经成功了，但是发帖失败，
我抓取数据包发现，我每次发出去的数据的Content-Length: 0
但是直接再网页上执行，这个是：Content-Length: 123
不知道哪位高人可以指点一下，谢谢。

CInternetSession session(_T("My Browser2"));
	CHttpConnection* pServer = NULL;
	CHttpFile* pFile = NULL;
	CString    strAddress = "http://bbs.zynews.com/login.aspx?loginsubmit=true";
	 
	try
	{
		CString strServer;
		CString strObject;
		INTERNET_PORT nPort;
		DWORD dwServiceType;
		
		if(!AfxParseURL(strAddress,dwServiceType,strServer,strObject,nPort)||
			dwServiceType != INTERNET_SERVICE_HTTP)
		{
			MessageBox(_T("不是HTTP站点"),_T("错误"));
		}
		pServer = session.GetHttpConnection(strServer,nPort); 
 
		//===================================登录(打开登陆页面)===============================================
		pFile = pServer->OpenRequest(CHttpConnection::HTTP_VERB_POST,strObject,NULL,1,NULL,NULL, INTERNET_FLAG_EXISTING_CONNECT | INTERNET_FLAG_NO_AUTO_REDIRECT );
 		pFile->AddRequestHeaders(_T("My Browser2"));
		pFile->SendRequest();
		
		DWORD dwRet;
		pFile->QueryInfoStatusCode(dwRet);   
		 				
		//===================================登录(进行登陆操作)===============================================		
		CString strFormatData = "username=joyswgood&password=ghygood1&question=0&answer=&expires=43200&templateid=0&login=%E7%99%BB%E5%BD%95";//for 中原网							   		
		pFile->AddRequestHeaders("Accept-Language: zh-cn\r\n");
		pFile->AddRequestHeaders("Content-Type: application/x-www-form-urlencoded\r\n");
		pFile->AddRequestHeaders("Accept-Encoding: gzip, deflate\r\n");		
		BOOL ret = pFile->SendRequest(0,0,(LPVOID)strFormatData.GetBuffer(),strFormatData.GetLength());
		if(ret)
		{
			ret = pFile->QueryInfoStatusCode(dwRet);
			TRACE("login dwRet = %d\n",dwRet);			
 
			CString a;
			FILE *fp = fopen("c:\\login.html","w+");
			while(pFile->ReadString(a))
			{
				fprintf(fp,"%s",a);
			}			
			fclose(fp);
		}		 
		pFile->Close();
		
		//===================================发帖(打开发帖页面)===============================================  
	 
		strAddress = "http://bbs.zynews.com/postreply.aspx?topicid=8717";	 
		if(!AfxParseURL(strAddress,dwServiceType,strServer,strObject,nPort)|| dwServiceType != INTERNET_SERVICE_HTTP)
		{
			MessageBox(_T("不是HTTP站点"),_T("错误"));
		}  

		pFile = pServer->OpenRequest(0,strObject,NULL,1,NULL,NULL, INTERNET_FLAG_EXISTING_CONNECT | INTERNET_FLAG_NO_AUTO_REDIRECT  ); 
		pFile->AddRequestHeaders(_T("My Browser"));
		pFile->SendRequest(); 
		
		pFile->QueryInfoStatusCode(dwRet);
		TRACE("open[%s] = %d\n",strObject,dwRet);

		//===================================发帖(进行发帖操作)===============================================
		CString key   = _T("7d91f3931e8c");		
		CString strHeadData;

		strHeadData.Format(_T("Content-Type: multipart/form-data; boundary=---------------------------%s\r\n"),key);		
		strFormatData.Format(_T("-----------------------------%s\r\n"
						"Content-Disposition: form-data; name=\"usesig\"\r\n\r\n"						
						"1\r\n"
						"-----------------------------%s\r\n"
						"Content-Disposition: form-data; name=\"postreplynotice\"\r\n\r\n"						
						"on\r\n"
						"-----------------------------%s\r\n"
						"Content-Disposition: form-data; name=\"title\"\r\n\r\n"						
						"da jia hao\r\n"
						"-----------------------------%s\r\n"
						"Content-Disposition: form-data; name=\"postid\"\r\n\r\n"						
						"-1\r\n"
						"-----------------------------%s\r\n"
						"Content-Disposition: form-data; name=\"message\"\r\n\r\n"											
						"sshang hai huanying nin\r\n"
						"-----------------------------%s--\r\n\r\n\r\n"),
						key,key,key,key,key,key);
		
		pFile->AddRequestHeaders(_T("Content-Length: 581"));
		pFile->AddRequestHeaders(_T("Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, "
			"application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*"));
		pFile->AddRequestHeaders(_T("Accept-Language: zh-cn\r\n"));
		pFile->AddRequestHeaders(strHeadData);		
		pFile->AddRequestHeaders(_T("Referer: http://bbs.zynews.com/showtopic-8717.aspx"));
		
		ret = pFile->SendRequest(NULL,0,(LPVOID)strFormatData.GetBuffer(),strFormatData.GetLength());
		if(ret)
		{
			ret = pFile->QueryInfoStatusCode(dwRet);			
			TRACE("Post dwRet = %d\n",dwRet); 

			CString a;
			FILE *fp = fopen("c:\\post.html","w+");
			if(fp == NULL) return;
			while(pFile->ReadString(a))
			{ 				 
				fprintf(fp,"%s",a);				 				
			}
			fclose(fp); 			
		} 
		pFile->Close();
		session.Close();

	}
	catch(...)
	{
	}

[jobsccnu]

进来的哥们都有分啊，先到先得。

[小生我怕怕]

CString strFormatData = "username=joyswgood&password=ghygood1&question=0&answer=&expires=43200&templateid=0&login=%E7%99%BB%E5%BD%95";//for 中原网

楼主这个数据怎么获取的啊 ？ 我想写个自动登录的程序，pay.163.com 可是strFormatData找不对 ，HTML不熟悉。。
楼主~帅哥~
帮我看看 pay.163.com 这个网站的strFormatData 得怎么写啊
谢谢~~

[小生我怕怕]

兄弟 我不能帮你解决问题但是我可以帮你顶啊
顶~~~~~
顶~~~~

[jobsccnu]

你用sniffer软件就很容易截获到了。