Question

我想从以下页面获取数据：http://kovv.mavari.be/kalender.aspx当您按下提交按钮且下拉列表中没有选定值时。（那么你看到一张大桌子的页面）

我已尝试按照您在此处找到的教程：http://www.mishainthecloud.com/2009/12/screen-scraping-aspnet-application-in.html。

这是我到目前为止所做的：

public function teamsoostVlaanderen()
{

    $url = "http://kovv.mavari.be/kalender.aspx";
    $regs=array();

    $cookies = '../src/VolleyScout/VolleyScoutBundle/Resources/doc/cookie.txt';

    // regular expressions to parse out the special ASP.NET
    // values for __VIEWSTATE and __EVENTVALIDATION
    $regexViewstate = '/__VIEWSTATE\" value=\"(.*)\"/i';
    $regexEventVal  = '/__EVENTVALIDATION\" value=\"(.*)\"/i';

    $ch = curl_init();

    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
    $data=curl_exec($ch);

    $viewstate = $this->regexExtract($data,$regexViewstate,$regs,1);
    $eventval = $this->regexExtract($data, $regexEventVal,$regs,1);

    $postData = '__VIEWSTATE='.rawurlencode($viewstate)
        .'&__EVENTVALIDATION='.rawurlencode($eventval)
        .'&ctl00_ContentPlaceHolder1_ddlGeslacht'
        .'&ctl00$ContentPlaceHolder1$ddlReeks'
        .'&ctl00_ContentPlaceHolder1_ddlDatum'
        .'&ctl00$ContentPlaceHolder1$btnZoek:zoek'
    ;

    curl_setOpt($ch, CURLOPT_POST, TRUE);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_COOKIEJAR, $cookies);

    $data = curl_exec($ch);

    echo $data;

    curl_close($ch);

    die();
}

public function regexExtract($text, $regex, $regs, $nthValue)
{
    if (preg_match($regex, $text, $regs)) {
        $result = $regs[$nthValue];
    }
    else {
        $result = "";
    }
    return $result;
}

但我仍然没有帖子的页面（所以没有表格）。当我检查我的cookies.txt文件时它是空的，也许有问题吗？有人可以帮我找到问题吗？

Answer 1

适当的正则表达式：

$regexViewstate = '/__VIEWSTATE\" value=\"([^"]*)\"/i';
$regexEventVal  = '/__EVENTVALIDATION\" value=\"([^"]*)\"/i';

错过帖子参数中的等号：

$postData = '__VIEWSTATE='.rawurlencode($viewstate)
    .'&__EVENTVALIDATION='.rawurlencode($eventval)
    .'&ctl00_ContentPlaceHolder1_ddlGeslacht='
    .'&ctl00$ContentPlaceHolder1$ddlReeks='
    .'&ctl00_ContentPlaceHolder1_ddlDatum='
    .'&ctl00$ContentPlaceHolder1$btnZoek=zoek'

尝试在post + PHP之后从aspx页面获取数据

1 个答案: