如何下載一個CSV文件（__doPostBack後面）使用Qt

我需要一個函數來從「會議結果」下載CSV文件： http://www.rwwa.com.au/cris/meetingdownload.aspx?meeting=15014 如何下載一個CSV文件（__doPostBack後面）使用Qt

的問題是，你需要點擊「會議結果」鏈接來獲取文件。

此鏈接有以下相關網址：的javascript：__ doPostBack（ 'ctl00 $ ContentPlaceHolderMain $ linkButtonResults'， ''）

我如何可以模擬點擊下載的文件Qt中？

注：我檢查了Qt中的HTTP示例，但由於csv文件沒有直接鏈接，我不知道如何下載它。

謝謝大家的時間和答案。此致

來源

2011-04-16 Dconversor

換句話說，使用Wireshark獲得的HTTP是（下面Qt代碼）：

POST /cris/meetingdownload.aspx?meeting=15016 HTTP/1.1 
Host: www.rwwa.com.au 
User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.16) Gecko/20110323 Ubuntu/10.10 (maverick) Firefox/3.6.16 
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 
Accept-Language: en-us,en;q=0.5 
Accept-Encoding: gzip,deflate 
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 
Keep-Alive: 115 
Connection: keep-alive 
Referer: http://www.rwwa.com.au/cris/meetingdownload.aspx?meeting=15016 
Cookie: __utma=125158281.121279034.1302968401.1303017966.1303024785.5; __utmz=125158281.1302968401.1.1.utmccn=(direct)|utmcsr=(direct)|utmcmd=(none); rwwa_home=SID-4E7CCEFA-2D53D8FE; JSESSIONID=C7C7911A58DF8F12AAF4B426BD347520; __utmc=125158281 
Content-Type: application/x-www-form-urlencoded 
Content-Length: 557 

__EVENTTARGET=ctl00%24ContentPlaceHolderMain%24linkButtonResults&__EVENTARGUMENT=&__VIEWSTATE=%2FwEPDwUKLTI3Njg4NTg5OA9kFgJmD2QWBAIDDxYCHgRUZXh0BSUNCjwhLS1XUzogVlRBQjIzMEM7IEFTOiBWVEFCMjIwQy0tPg0KZAIFD2QWAgIBD2QWDAIBDw8WAh8ABR5DUklTOiBNZWV0aW5nIERvd25sb2FkIE9wdGlvbnNkZAIDD2QWAmYPFgIeB1Zpc2libGVoZAIFDw8WAh8ABSVQSU5KQVJSQSBSQUNFIENMVUIsIFN1bmRheSAxNy8wNC8yMDExZGQCBw8PFgIfAAUSKGF0IFBJTkpBUlJBIFBBUkspZGQCCQ8WAh8BaGQCDQ8WAh8BaBYCAgMPFgIfAWhkZFF%2Fdlkb2PzfgrCf7N5ngJjqeu9J&__EVENTVALIDATION=%2FwEWBALHkpPICQLq6ujxCAKu74e8CgLbgNGWDhGwePSQniauH%2Bus3CWjmz0dBm4v

我Qt中寫入以下代碼：

QNetworkAccessManager *manager = new QNetworkAccessManager(this); 
connect(manager, SIGNAL(finished(QNetworkReply*)), 
     this, SLOT(replyFinished(QNetworkReply*))); 

QNetworkRequest request; 
request.setUrl(QUrl("http://www.rwwa.com.au/cris/meetingdownload.aspx?meeting=15016")); 
request.setRawHeader("Host", "www.rwwa.com.au"); 
request.setRawHeader("User-Agent", "Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.16) Gecko/20110323 Ubuntu/10.10 (maverick) Firefox/3.6.16"); 
request.setRawHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"); 
request.setRawHeader("Accept-Language", "en-us,en;q=0.5"); 
request.setRawHeader("Accept-Encoding", "gzip,deflate"); 
request.setRawHeader("Accept-Charset", "ISO-8859-1,utf-8;q=0.7,*;q=0.7"); 
request.setRawHeader("Keep-Alive", "115"); 
request.setRawHeader("Connection", "keep-alive"); 
request.setRawHeader("Referer", "http://www.rwwa.com.au/cris/meetingdownload.aspx?meeting=15016"); 
//request.setRawHeader("Cookie", ""); 
request.setRawHeader("Content-Type", "application/x-www-form-urlencoded"); 
request.setRawHeader("Content-Length", "557"); 

reply = manager->get(request); 
connect(reply, SIGNAL(readyRead()), this, SLOT(slotReadyRead())); 
connect(reply, SIGNAL(error(QNetworkReply::NetworkError)), 
     this, SLOT(slotError(QNetworkReply::NetworkError)));

但我不不知道如何處理EVENTTARGET和VIEWSTATE，以及我是否遵循好的方法。

來源

2011-04-17 18:48:54 Dconversor

如何下載一個CSV文件（__doPostBack後面）使用Qt

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