Question

我想从以下html输出中拉出HREF

<div class="course">
    <p class="course-data">
        <a class="course-name i13n-sec-country i13n-ltxt-meeting i13n-tab-TODO-TAG-TAB" href="/course?courseId=1.2&amp;date=20150713">
            Ayr
        </a> | SOFT
    </p>
    <ul>
        <li class="full" title="7f 50yds Maiden Stakes | 10 runners">
            <a class="i13n-sec-country i13n-ltxt-race i13n-tab-TODO-TAG-TAB" href="/raceresult?raceId=1.2.1150713.1">
                09:00
            </a>
        </li>
        <li class="full" title="1m Handicap | 5 runners">
            <a class="i13n-sec-country i13n-ltxt-race i13n-tab-TODO-TAG-TAB" href="/raceresult?raceId=1.2.1150713.2">
                09:30
            </a>
        </li>
        <li class="full" title="1m2f Handicap | 6 runners">
            <a class="i13n-sec-country i13n-ltxt-race i13n-tab-TODO-TAG-TAB" href="/raceresult?raceId=1.2.1150713.3">
                10:00
            </a>
        </li>

但是如果调用包含单词“race”，我只想要href属性 - 例如它会拉动这个href

<a class="i13n-sec-country i13n-ltxt-race i13n-tab-TODO-TAG-TAB" href="/raceresult?raceId=1.2.1150713.1">

我已经尝试了自己，但似乎无法使用getAttribute('href')拉出href并获得错误“调用非对象上的成员函数项（）”

Answer 1

我认为这就是你要找的东西

try {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter your name: ");
        String name = in.nextLine(); // <---- HERE
        System.out.printf("\nEnter first integer: ");
        int nnum1=Integer.parseInt(in.nextLine());
        System.out.printf("\nEnter second integer: ");
        int nnum2=Integer.parseInt(in.nextLine());
        System.out.println("Hello \n" + name);
        System.out.println("num 1" + "+" + "is " + (nnum1 + nnum2));
        System.out.println("num 1" + "-" + "is " + (nnum1 - nnum2));
        System.out.println("num 1" + "*" + "is " + (nnum1 * nnum2));
        System.out.println("num 1" + "%" + "is " + (nnum1 % nnum2));
        System.out.print("Thank You!");
    } catch (NumberFormatException e) {
        // TODO Auto-generated catch block
        System.out.println("Please enter valid number");
        e.printStackTrace();
    }

或者您可以使用SimpleXML

$dom = new DomDocument;
$dom->loadHtml($html);
$tagList = $dom->getElementsByTagName('a');
foreach ($tagList as $tag) {
    // Simple string check, but beware using strstr and utf-8
    if(strstr($tag->getAttribute('class'), 'race')) {
        echo $tag->getAttribute('href');
    }
}

仅使用DomDocument拉取HREF

1 个答案: