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HTMLCleaner和XPath_Xpath_Predicate_Htmlcleaner - Fatal编程技术网

HTMLCleaner和XPath

HTMLCleaner和XPath,xpath,predicate,htmlcleaner,Xpath,Predicate,Htmlcleaner,HTMLCleaner是否支持XPath position()函数和使用谓词表示位置 我的代码如下: HtmlCleaner htmlCleaner = new HtmlCleaner(); String sourceUrl = "http://jobs.alaska.gov/RR/WARN_notices.htm"; URL url = new URL(sourceUrl); URLConnection urlConnection = url.openConnection(); TagNode

HTMLCleaner是否支持XPath position()函数和使用谓词表示位置

我的代码如下:

HtmlCleaner htmlCleaner = new HtmlCleaner();
String sourceUrl = "http://jobs.alaska.gov/RR/WARN_notices.htm";
URL url = new URL(sourceUrl);
URLConnection urlConnection = url.openConnection();
TagNode rootTagNode = htmlCleaner.clean(new InputStreamReader(urlConnection.getInputStream()));
String xpathOne = "//table[2]/tbody/tr/td/table/tbody/tr/td/table/tbody/tr[1]/td/div/span/text()";
// String xpathTwo = "//table[2]/tbody/tr/td/table/tbody/tr/td/table/tbody/tr[3]/td/div/span/text()";
Object[] xPathNodes = rootTagNode.evaluateXPath(xpathOne);
// Object[] xPathNodes = rootTagNode.evaluateXPath(xpathTwo);

for(Object object : xPathNodes) {
   System.out.println(object);
}

xPathOne正确执行并返回带有标题的表行。xPathTwo不返回任何内容,但它应该返回表中的第一行数据。任何帮助都将不胜感激。谢谢

我认为那里没有
span
元素,所以也许缩短到
//table[2]/tbody/tr/td/table/tbody/tr/td/table/tbody/tr[3]/td/div/text()的路径是你想要的。

太好了,这是我的疏忽。非常感谢你发现了这一点。真的很感激。