如何在java中使用html解析器对div的内容进行筛选_Java_Html_Filter_Html Parsing

如何在java中使用html解析器对div的内容进行筛选

java html filter

如何在java中使用html解析器对div的内容进行筛选,java,html,filter,html-parsing,Java,Html,Filter,Html Parsing,我正在尝试使用HTMLPasser库解析HTML字符串。 html如下所示： <body> <div class="Level1"> <div class="row"> <div class="txt"> Date of analysis: </div><div class="conten

我正在尝试使用HTMLPasser库解析HTML字符串。 html如下所示：

<body>
        <div class="Level1">
            <div class="row">
                <div class="txt">
                    Date of analysis:
                </div><div class="content">
                    02/03/11
                </div>
            </div>
        </div><div class="Level1">
            <div class="row">
                <div class="txt">
                    Site:
                </div><div class="content">
                    13.0E
                </div>
            </div>
        </div><div class="Level1">
            <div class="row">
                <div class="txt">
                    Network type:
                </div><div class="content">
                    DVB-S
                </div>
            </div>
        </div>
</body>

NodeList nl = parser.parse(null); // you can also filter here

NodeList divs = nl.extractAllNodesThatMatch(
  new AndFilter(new TagNameFilter("DIV"), 
    new HasAttributeFilter("class", "txt")));

if( divs.size() > 0 ) {
  Tag div = divs.elementAt(0);
  String text = div.getText(); // this is the text of the div
}

有人能帮我解决这个问题吗？？如何在div中读取div？谢谢

最好这样做：

<body>
        <div class="Level1">
            <div class="row">
                <div class="txt">
                    Date of analysis:
                </div><div class="content">
                    02/03/11
                </div>
            </div>
        </div><div class="Level1">
            <div class="row">
                <div class="txt">
                    Site:
                </div><div class="content">
                    13.0E
                </div>
            </div>
        </div><div class="Level1">
            <div class="row">
                <div class="txt">
                    Network type:
                </div><div class="content">
                    DVB-S
                </div>
            </div>
        </div>
</body>

NodeList nl = parser.parse(null); // you can also filter here

NodeList divs = nl.extractAllNodesThatMatch(
  new AndFilter(new TagNameFilter("DIV"), 
    new HasAttributeFilter("class", "txt")));

if( divs.size() > 0 ) {
  Tag div = divs.elementAt(0);
  String text = div.getText(); // this is the text of the div
}

最好这样做：

<body>
        <div class="Level1">
            <div class="row">
                <div class="txt">
                    Date of analysis:
                </div><div class="content">
                    02/03/11
                </div>
            </div>
        </div><div class="Level1">
            <div class="row">
                <div class="txt">
                    Site:
                </div><div class="content">
                    13.0E
                </div>
            </div>
        </div><div class="Level1">
            <div class="row">
                <div class="txt">
                    Network type:
                </div><div class="content">
                    DVB-S
                </div>
            </div>
        </div>
</body>

NodeList nl = parser.parse(null); // you can also filter here

NodeList divs = nl.extractAllNodesThatMatch(
  new AndFilter(new TagNameFilter("DIV"), 
    new HasAttributeFilter("class", "txt")));

if( divs.size() > 0 ) {
  Tag div = divs.elementAt(0);
  String text = div.getText(); // this is the text of the div
}

nl.item（0）

是

行

元素，我想我们想要类为

txt

的div。我尝试了你的建议，但没有成功…：（我取得的最大成绩是：Parser Parser=Parser.createParser（htmlFile，null）；NodeList nl=Parser.extractAllNodesThatMatch（new-AndFilter（new-TagNameFilter（“DIV”）、new-HasAttributeFilter（“class”、“txt”）；for（int I=0；Inl.item（0）是

行

元素，我想我们想要类为

txt

的div。我尝试了你的建议，但没有起作用…：（我获得的最大值是：Parser Parser=Parser.createParser（htmlFile，null）；NodeList nl=Parser.extractAllNodesThatMatch（new and and filter）（new TagNameFilter（“div”），new HasAttributeFilter(代码的结果是：div class=“txt”div class=“txt”div class=“txt”div class=“txt”它没有打印div的值。您知道如何打印该值吗？