访问HTML select标记的Jsoup

I'm new to jsoup and having a bit of trouble with html tag. I need to get value attribute of select list options based on a text they contain. For example:

我是jsoup的新手，在html标签上有一点麻烦。我需要根据它们包含的文本获取选择列表选项的value属性。例如:

'<select id="list">
<option value="0">First value</option>
<option value="1">Second value</option>
<option value="2">Third value</option>
</select>'

Do you have an idea how I can tell jsoup to return the value "1" if it gets a "Second value" as a parameter for a search?

如果jsoup获得一个“第二个值”作为搜索参数，您知道如何让它返回值“1”吗?

4 个解决方案

#1

This may Help You..

这可以帮助你. .

String demo = "<select id='list'><option value='0'>First value</option><option value='1'>Second value</option><option value='2'>Third value</option></select>";


        Document document = Jsoup.parse(demo);
        Elements options = document.select("select > option");

        for(Element element : options)
        {
            if(element.text().equalsIgnoreCase("second value"))
            {
                System.out.println(element.attr("value"));
            }

        }

#2

Here's another solution:

这是另一个解决方案:

public String searchAttribute(Element element, String str)
{
    Elements lists = element.select("[id=list]");

    for( Element e : lists )
    {
        Elements result = e.select("option:contains(" + str + ")");

        if( !result.isEmpty() )
        {
            return result.first().attr("value");
        }
    }

    return null;
}

Test:

测试:

Document doc = Jsoup.parse(html); // html is your listed html / xml
Strign result = searchAttribute(doc, "Second value") // result = 1

#3

Try this code:

试试这段代码:

String searchValue = "Second value";
Elements options = doc.select("#list > option");
String value = "";
for (Element option : options) {
    String text = option.text();
    if (text.equals(searchValue)){
        value = option.attr("value");
    }
}

Hope it helps!

希望它可以帮助!

#4

I think the simplest solution is:

我认为最简单的解决办法是:

 Document doc = Jsoup.parse(html);
 String value = doc.select("#list > option:contains(Second value)").val();

#1