使用JSOUP解析html文件并将其映射到JAVA中的键值对

Question

I have parsed HTML using Jsoup and I'm trying to get key value pair out of it.

This is the HTML file, which contains key words in dt dlterm and values in dd :

 <div class="section" id="GUID-1BF02E47-1ECC-4CCF-A903-2A8621DB5FBA__GUID- 20A253C1-02AD-4413-9570-C0178C01E616"> <div class="p"> <dl class="dl"> <dt class="dt dlterm"> <a name="GUID-1BF02E47-1ECC-4CCF-A903-2A8621DB5FBA__GUID-942CC4F1-90F8- 4B83-9647-A3D086063B0C"><!----></a>Incident</dt> <dd class="dd">detials of one</dd> <dt class="dt dlterm"><a name="GUID-1BF02E47-1ECC-4CCF-A903- 2A8621DB5FBA__GUID-0F5CFEC5-6714-4000-A733-79DDB49B4C63"><!----> </a>Risk</dt> <dd class="dd">details of it two</dd> <dt class="dt dlterm"><a name="GUID-1BF02E47-1ECC-4CCF-A903- 2A8621DB5FBA__GUID-C731C50A-947F-431B-9CEE-1FFD1BA40EEA"><!----> </a>Event</dt> <dd class="dd">detials of it three.</dd> </dl> </div> </div> 

This is what I tried:

static Map<Object, Object> maps;

public static Map<Object, Object> getSet(Document doc) {
    maps = new HashMap<Object, Object>();
    String key ="";
    String value = "";
    Elements elemname1 = doc.getElementsByClass("dt dlterm");
    Elements elemname2 = doc.getElementsByClass("dd");

    List<Object> keys = new ArrayList<Object>();
    List<Object> values = new ArrayList<Object>();
    for (Element i : elemname1) {
        key = i.ownText();
        keys.add(key);
    }
    for(Element j : elemname2) {
        value = j.ownText();
        values.add(value);
    }
    System.out.println(maps);
    return maps;
}

public static void main (String args[]) throws Exception {
    String filePath ="someFilePath.html";
    File input = new File(filePath);
    Document doc = Jsoup.parse(input, "UTF-8", "");
    getSet(doc);
}

The expexted result is like this:

{ 
    Event = detials of one,
    Incident = detials of two,
    Risk = detials of three 
}

What im getting is:

{[Incident, Risk, Event] = [detials of one,detials of two,detials of three]}

Answer 1

You can put results into map while collecting them in one loop. Replace both for loops with this one:

for (int i = 0; i < elemname1.size(); i++) {
    key = elemname1.get(i).ownText();
    value = elemname2.get(i).ownText();
    maps.put(key, value);
}

output:

{Risk=details of it two, Event=detials of it three., Incident=detials of one}

Answer 2

You can just use this:

Document document = Jsoup.parse(html);

Elements dts = document.getElementsByClass("dt dlterm");
Elements dds = document.getElementsByClass("dd");

if (dts.size() != dds.size()) {
    // ensure same sizes of both lists
}

HashMap<String, String> values = new HashMap<>();
for (int i = 0; i < dts.size(); i++) {
    values.put(dts.get(i).text(), dds.get(i).text());
}

Or in just one statement using Java Streams:

Map<String, String> values = IntStream.range(0, Math.min(dts.size(), dds.size())).boxed()
        .collect(Collectors.toMap(i -> dts.get(i).text(),i -> dds.get(i).text()));

The result will be this:

{Risk=details of it two, Event=detials of it three., Incident=detials of one}

If you want to make sure the order in the map is the same as in the HTML code use a LinkedHashMap instead of a HashMap .