我需要从网站上的动态表中提取数据，我想使用Jsoup（Java）
我正在使用Jsoup从网站上的表中提取数据。该表的内容是动态的，当我单击它时，有一个刷新按钮可更新行。
我试图用Jsoup推断数据，但是就像我在分析HTML页面时看不到表的行。 （解析方法）。当我单击刷新按钮时，将调用JavaScript函数。
您有什么建议吗？我读到Jsoup无法从HTML页面提取动态值？真正？我是否必须使用其他图书馆？这是从Chrome DevTools（该工具的“元素”部分）提取的页面的HTML代码
这是我在“元素”部分转到Chrome DevTools时看到的：
我要提取“黄色数据”。
这是我在“来源”部分转到chrome开发人员工具时看到的内容：
<div id="datatable_wrapper" class="dataTables_wrapper form-inline dt-bootstrap no-footer" style="display:none;margin-bottom: 50px;min-height:585px">
<div class="row" style="margin:0px:padding:0px">
<div class="col-sm-12">
<table id="datatable" class="table table-striped table-bordered table-hover dataTable no-footer" style="width: 1100px;margin:0px !important;padding:0px !important;" role="grid" aria-describedby="datatable_info">
<thead>
<tr role="row">
<th class="sorting" tabindex="0" aria-controls="datatable" rowspan="1" colspan="1" aria-label="Event Date/Time: activate to sort column ascending" style="width: 100px;">TITLE_COLUMN1</th>
<th class="hCenter sorting_disabled" tabindex="0" aria-controls="datatable" rowspan="1" colspan="1" style="width: 40px;"></th>
<th class="sorting" tabindex="0" aria-controls="datatable" rowspan="1" colspan="1" aria-label="Event Name: activate to sort column ascending" style="width: 250px;">TITLE_COLUMN2</th>
<th class="sorting" tabindex="0" aria-controls="datatable" rowspan="1" colspan="1" aria-label="Bet: activate to sort column ascending" style="width: 100px;">TITLE_COLUMN3</th>
<th class="hCenter sorting" tabindex="0" aria-controls="datatable" rowspan="1" colspan="1" aria-label="Rating: activate to sort column" style="width: 80px;">TITLE_COLUMN4(%)</th>
<th class="hCenter sorting" tabindex="0" aria-controls="datatable" rowspan="1" colspan="1" aria-label="SNR Rating: activate to sort column" style="width: 95px;">TITLE_COLUMN5(%)</th>
<th class="hCenter sorting" tabindex="0" aria-controls="datatable" rowspan="1" colspan="1" aria-label="Bookie: activate to sort column ascending" style="width: 100px;">TITLE_COLUMN6</th>
<th class="hCenter sorting" tabindex="0" aria-controls="datatable" rowspan="1" colspan="1" aria-label="Back Odds: activate to sort column ascending" style="width:40px;">TITLE_COLUMN7</th>
<th class="hCenter" tabindex="0" aria-controls="datatable" rowspan="1" colspan="1" aria-label="Exchange: activate to sort column ascending" style="width: 100px;">TITLE_COLUMN8</th>
<th class="hCenter sorting" tabindex="0" aria-controls="datatable" rowspan="1" colspan="1" aria-label="Lay Odds: activate to sort column ascending" style="width: 40px;">TITLE_COLUMN9</th>
<th class="sorting" tabindex="0" aria-controls="datatable" rowspan="1" colspan="1" aria-label="Availibity: activate to sort column ascending" style="width: 50px;">TITLE_COLUMN10</th>
<th class="sorting" tabindex="0" aria-controls="datatable" rowspan="1" colspan="1" aria-label="Availibity: activate to sort column ascending" style="width: 50px;">
<img src="/clock.png" width="15px" style="margin-left:10px;" />
</th>
</tr>
</thead>
<tbody>
</tbody>
</table>
</div>
</div>
这是填充表格的javascript函数：
function getData(ratingFrom,ratingTo,oddsFrom,oddsTo,availability,sortColumn=5,sortDirection="desc",offset=0,bookies="",filterbookies="c81e728d9d4c2f636f067f89cc14862c",eventname="",dateFrom="",dateTo="",exchange="",exchanges="",sport="all"){
$("#datatable_processing").css("display","block");
$("#datatable_nodata").css("display","none");
var importo_puntata = parseFloat($("#settings-form input[name=importo-puntata]").val());
var importo_bonus_rimborso = parseFloat($("#settings-form input[name=importo-bonus-rimborso]").val());
$.post("/get_data.php", {"refund":importo_bonus_rimborso,"back_stake":importo_puntata,"name":eventname,"filterbookies":filterbookies,"bookies":bookies,"rating-from":ratingFrom,"rating-to":ratingTo,"odds-from":oddsFrom,"odds-to":oddsTo,"min-liquidity":availability,"sort-column":sortColumn,"sort-direction":sortDirection,"offset":offset,"date-from":dateFrom,"date-to":dateTo,"exchange":exchange,"exchanges":exchanges,'sport':sport}, function(data){
var allData = jQuery.parseJSON(data);
var paginationHtml = "<li class=\"paginate_button previous disabled\" aria-controls=\"datatable\" tabindex=\"0\" id=\"datatable_previous\"><a href=\"#\">Precedente</a></li>";
paginationHtml+= "<li class=\"paginate_button next\" aria-controls=\"datatable\" tabindex=\"0\" id=\"datatable_next\"><a href=\"#\">Seguente</a></li>";
$("ul.pagination").html(paginationHtml);
if(allData.data.length>0)
{
if(allData.bookmakers.length>0)
{
if(allData.bookmakers.length>1)
{
var html = '<option value="all">Tutti i Bookmakers</option>';
$.each(allData.bookmakers, function(i, item) {
if(filterbookies == item.id.toString())
html += '<option value="'+item.id.toString()+'" selected="selected">'+capitalizeFirstLetter(item.name)+'</option>';
else
html += '<option value="'+item.id.toString()+'">'+capitalizeFirstLetter(item.name)+'</option>';
});
$("#bookmaker").css("display","inline-block");
$("#bookmaker").html(html);
}
else if(allData.bookmakers.length==1)
{
var html = '<option value="'+allData.bookmakers[0].id.toString()+'" selected="selected">'+capitalizeFirstLetter(allData.bookmakers[0].name)+'</option>';
$("#bookmaker").html(html);
}
}
if(allData.exchanges.length>1 && allData.bookmakers.length >1)
{
var html = '<option value="all">Tutti gli Exchanges</option>';
$.each(allData.exchanges, function(i, item) {
html += '<option value="'+item.toString()+'">'+capitalizeFirstLetter(item.toString())+'</option>';
});
$("#exchange").css("display","inline-block");
$("#exchange").html(html);
}
else if ($("input[name=exchanges]").val() == "all")
{
$("#exchange").css("display","inline-block");
}
$("#datatable tbody").html("");
var html = "";
$.each(allData.data, function(i, item) {
var json = allData.data[i];
var redRating = "";
if(json.rating>=100)
redRating= " redrating ";
html += "<tr role=\"row\" style=\"background-color: #fff !important;\" back-odds=\""+json.back_odds+"\" lay-odds=\""+json.lay_odds+"\" competition=\""+json.competition+"\" country=\""+json.country_code+"\" exchange=\""+json.exchange+"\" >"+
"<td>"+json.opendate+"</td>"+
"<td class=\"hCenter\"><img src=\"/images/"+json.sport+".png\" /></td>"+
"<td>"+json.event_name+"</td>"+
"<td>"+json.bet+"</td>"+
"<td class=\"hCenter sorting_1\"><span class=\"rating"+redRating+"\">"+json.rating+"</span></td>"+
"<td class=\"hCenter sorting_1\"><span class=\"snrrating\">"+json.snr_rating.toString()+".00"+"</span>"+
"<img src=\"/images/calculator.png\" class=\"calculator\""+
" attrib-sport=\""+json.sport+"\" attrib-exchange=\""+json.exchange+"\" attrib-competition=\""+json.competition+"\" attrib-country=\""+json.country_code+"\" attrib-eventdate=\""+json.opendate+"\" attrib-eventname=\""+json.event_name+"\" attrib-bet=\""+json.bet+"\" attrib-market=\""+json.market_type+"\" attrib-rating=\""+json.rating+"\" attrib-odds-provider_id=\""+json.odds_provider_fk+"\" attrib-odds-provider=\""+capitalizeFirstLetter(json.odds_provider)+"\" attrib-back-odds=\""+json.back_odds+"\" attrib-lay-odds=\""+json.lay_odds+"\" attrib-availability=\""+json.availability+"\" attrib-bookie-bet-url=\""+json.bookie_bet_url+"\" attrib-betfair-bet-url=\""+json.betfair_bet_url+"\" "+
" /></td>"+
"<td class=\" hCenter\"><img src=\"/images/"+json.odds_provider_fk+".png\" width=\"80\" /></td>"+
"<td class=\" hCenter back\" ><span>"+json.back_odds+"</span></td>"+
"<td class=\" hCenter\" ><img src=\"/images/"+json.exchange+".png\" width=\"80\" /></td>"+
"<td class=\" hCenter lay\" ><span>"+json.lay_odds+"</span></td>"+
"<td> €"+json.availability+"</td>"+
"<td>"+json.update_time.toString()+"</td>"+
"</tr>";
});
var allEvents = parseInt(allData.allEventsCount);
if(allEvents>10)
{
allEvents = allEvents - 10;
var j=0;
var pageStart = parseInt(allData.offset);
if(pageStart<9)
pageStart=1;
else
pageStart-=4;
var pageHtml = "";
for(var i=pageStart;i<=parseInt(allEvents/10);i++)
{
var current = "";
if((i-1==parseInt(allData.offset) && pageStart!=1) || (pageStart==1 && i-1==allData.offset))
current = "paginate_current disabled";
pageHtml += "<li class=\"paginate_button paginate "+current+"\" aria-controls=\"datatable\" tabindex=\"0\"><a href=\"\" class=\"paginate\">"+i.toString()+"</a></li>";
j++;
if(j>9)
break;
}
$("#datatable_previous").after(pageHtml);
}
$("#datatable_previous").click(function(event){
if($(this).hasClass("disabled"))
{event.preventDefault();return;}
var sortColumn = $("#search-form input[name=sort-column]").val();
var sortDirection = $("#search-form input[name=sort-direction]").val();
var ratingFrom = $("#search-form input[name=rating-from]").val();
var ratingTo=$("#search-form input[name=rating-to]").val();
var oddsFrom=$("#search-form input[name=odds-from]").val();
var oddsTo=$("#search-form input[name=odds-to]").val();
var availability=$("#search-form input[name=availability]").val();
var offset=parseInt($("#search-form input[name=offset]").val())-1;
var bookies = $("#search-form input[name=bookies]").val();
var filterbookies = $("#bookmaker").val();
var dateFrom = $("#date-from").val();
var dateTo = $("#date-to").val();
var teamname = $("#event-name").val();
var exchange = $("#exchange").val();
var exchanges = $("#search-form input[name=exchanges]").val();
var sport = $("#sport").val();
getData(ratingFrom,ratingTo,oddsFrom,oddsTo,availability,sortColumn,sortDirection,offset,bookies,filterbookies,teamname,dateFrom,dateTo,exchange,exchanges,sport);
});
$("#datatable_next").click(function(event){
if($(this).hasClass("disabled"))
{event.preventDefault();return;}
var sortColumn = $("#search-form input[name=sort-column]").val();
var sortDirection = $("#search-form input[name=sort-direction]").val();
var ratingFrom = $("#search-form input[name=rating-from]").val();
var ratingTo=$("#search-form input[name=rating-to]").val();
var oddsFrom=$("#search-form input[name=odds-from]").val();
var oddsTo=$("#search-form input[name=odds-to]").val();
var availability=$("#search-form input[name=availability]").val();
var offset=parseInt($("#search-form input[name=offset]").val())+1;
var bookies = $("#search-form input[name=bookies]").val();
var filterbookies = $("#bookmaker").val();
var dateFrom = $("#date-from").val();
var dateTo = $("#date-to").val();
var teamname = $("#event-name").val();
var exchange = $("#exchange").val();
var exchanges = $("#search-form input[name=exchanges]").val();
var sport = $("#sport").val();
getData(ratingFrom,ratingTo,oddsFrom,oddsTo,availability,sortColumn,sortDirection,offset,bookies,filterbookies,teamname,dateFrom,dateTo,exchange,exchanges,sport);
});
$("ul.pagination>li.paginate>a.paginate").click(function(event){
event.preventDefault();
var offset = parseInt($(this).html())-1;
var sortColumn = $("#search-form input[name=sort-column]").val();
var sortDirection = $("#search-form input[name=sort-direction]").val();
var ratingFrom = $("#search-form input[name=rating-from]").val();
var ratingTo=$("#search-form input[name=rating-to]").val();
var oddsFrom=$("#search-form input[name=odds-from]").val();
var oddsTo=$("#search-form input[name=odds-to]").val();
var availability=$("#search-form input[name=availability]").val();
var bookies = $("#search-form input[name=bookies]").val();
var filterbookies = $("#bookmaker").val();
var teamname = $("#event-name").val();
var dateFrom = $("#date-from").val();
var dateTo = $("#date-to").val();
var exchange = $("#exchange").val();
var exchanges = $("#search-form input[name=exchanges]").val();
var sport = $("#sport").val();
getData(ratingFrom,ratingTo,oddsFrom,oddsTo,availability,sortColumn,sortDirection,offset,bookies,filterbookies,teamname,dateFrom,dateTo,exchange,exchanges,sport);
});
$("#datatable_wrapper .pageNumber").html((parseInt(allData.offset)*10)+1);
$("#datatable_wrapper .pageCount").html(allData.data.length+(parseInt(allData.offset)*10));
$("#datatable_wrapper .allEventsCount").html(allData.allEventsCount);
if((allData.data.length+(parseInt(allData.offset)*10)) < allData.allEventsCount)
$("#datatable_next").removeClass("disabled");
else
{
$("#datatable_next").removeClass("disabled");
$("#datatable_next").addClass("disabled");
}
if(parseInt(allData.offset)>=1)
$("#datatable_previous").removeClass("disabled");
else
{
$("#datatable_previous").removeClass("disabled");
$("#datatable_previous").addClass("disabled");
}
$("#datatable tbody").html(html);
$("#datatable_wrapper").css("display","block");
$("#datatable th").removeClass("sorting_desc");
$("#datatable th").removeClass("sorting_asc");
$("#datatable th").removeClass("sorting");
$("#datatable th").addClass("sorting");
$("#datatable th").removeAttr("aria-sort");
$("#search-form input[name=offset]").val(allData.offset);
$("#search-form input[name=sort-column]").val(allData.sortColumn);
$("#search-form input[name=sort-direction]").val(allData.sortDirection);
$($("#datatable th")[allData.sortColumn]).attr('aria-sort',allData.sortDirectionFull);
$($("#datatable th")[allData.sortColumn]).removeClass("sorting");
$($("#datatable th")[allData.sortColumn]).addClass("sorting_"+allData.sortDirection);
$("#datatable img.calculator").click(function(){
$("#event-details #calc-event-datetime").val($(this).attr('attrib-eventdate'));
$("#event-details #calc-event-name").val($(this).attr('attrib-eventname'));
$("#event-details .event-rating").html($(this).attr('attrib-rating'));
$("#event-details .event-competition").html($(this).attr('attrib-competition'));
$("#event-details .event-country").html($(this).attr('attrib-country'));
$("#right-container input[name=back-odds]").val($(this).attr('attrib-back-odds'));
$("#right-container a.bookie-bet-url").attr("href",$(this).attr('attrib-bookie-bet-url'));
$("#right-container a.betfair-bet-url").attr("href",$(this).attr('attrib-betfair-bet-url'));
if ($(this).attr('attrib-sport') == "tennis" && $(this).attr('attrib-exchange') == "betfair")
$("#right-container a.betfair-bet-url").attr("href",$(this).attr('attrib-betfair-bet-url').replace("football","tennis"));
$("#right-container input[name=back-commission]").val("0.00");
$("#right-container input[name=lay-odds]").val($(this).attr('attrib-lay-odds'));
$("#right-container input[name=lay-commission]").val("0.05");
$("#odds-container .event-outcome").html($(this).attr('attrib-bet')+" To Win");
$("#odds-container span.backTitle").html($(this).attr('attrib-back-odds'));
$("#odds-container span.layTitle").html($(this).attr('attrib-lay-odds'));
$("#match-container img.exchangeLogo").attr("src","/images/"+$(this).attr('attrib-exchange')+".png");
$("#match-container img.sport-img").attr("src","/images/"+$(this).attr('attrib-sport')+".png");
$("span.event-exchange").html(capitalizeFirstLetter($(this).attr('attrib-exchange')));
$("span.event-back-oddsprovider").html($(this).attr('attrib-odds-provider'));
$("#odds-container span.back-odds").html($(this).attr('attrib-back-odds'));
$("#odds-container span.lay-odds").html($(this).attr('attrib-lay-odds'));
$("#odds-container span.backTitle").html($(this).attr('attrib-back-odds'));
$("#odds-container span.backTitle").html($(this).attr('attrib-back-odds'));
$("#odds-container img.bookmakerLogo").attr("src","/images/"+$(this).attr('attrib-odds-provider_id').toString()+".png");
$("#odds-container .event-back-outcome").html($(this).attr('attrib-bet'));
$("#odds-container .event-lay-outcome").html($(this).attr('attrib-bet'));
$("#odds-container span.lay-availability").html("€"+$(this).attr('attrib-availability').toString()+" liquidità");
var importo_puntata = $("#settings-form input[name=importo-puntata]").val();
var importo_bonus_rimborso = $("#settings-form input[name=importo-bonus-rimborso]").val();
$("#right-container input[name=back-stake]").val(importo_puntata);
$("#right-container input[name=back-refund-stake]").val(importo_bonus_rimborso);
$("#match-container").dialog({
width: 850,
modal: true,
resizable: false,
title: "Calcolatore - "+$(this).attr('attrib-eventname'),
open: function(event, ui) {
$("#rbtnSNR").attr("checked",false);
$("#rbtnSR").attr("checked",false);
$("#rbtnNormal").attr("checked",true);
updateCalculator(0);
$("html, body").animate({ scrollTop: 100 }, "fast");
}
}).parent().position({
my: 'top+50px',
at: 'top',
collision: "flip flip",
of: $("#datatable_wrapper")
});
});
}
else
{
if(allData.bookmakers.length==1)
{
$("#bookmaker").css("display","none");
}
$("#datatable_nodata").css("display","block");
$("#datatable_nodata h3").html("<center>Nessun dato trovato</center>");
$("#datatable_wrapper").css("display","none");
}
$("#datatable_processing").css("display","none");
});}
1 个答案:
答案 0 :(得分：0)
我读到Jsoup无法从html页面提取动态值？是真的吗？
是的。 您要查找的数据不在页面源中。由于POST到“ /get_data.php”而被动态读取。尝试获取该响应，因为它将包含JSON对象。我建议使用一些JSON解析库。
Jsoup在这里不是必需的，但可用于轻松获取JSON数据：
String jsonResponse = Jsoup
.connect(url + "/get_data.php")
.method(Connection.Method.POST)
.header("Accept", "application/json")
.timeout(20000)
.ignoreContentType(true)
.maxBodySize(0)
.requestBody("\"refund\":importo_bonus_rimborso,\"back_stake\":importo_puntata,\"name\":eventname,\"filterbookies\":filterbookies,\"bookies\":bookies,\"rating-from\":ratingFrom,\"rating-to\":ratingTo,\"odds-from\":oddsFrom,\"odds-to\":oddsTo,\"min-liquidity\":availability,\"sort-column\":sortColumn,\"sort-direction\":sortDirection,\"offset\":offset,\"date-from\":dateFrom,\"date-to\":dateTo,\"exchange\":exchange,\"exchanges\":exchanges,'sport':sport}")
.execute().body();
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