//nekohtml結(jié)合xpath用法
DOMParser parser = new DOMParser();
try {
//設(shè)置網(wǎng)頁的默認(rèn)編碼
parser.setProperty("http://cyberneko.org/html/properties/default-encoding","gb2312");
/*The Xerces HTML DOM implementation does not support namespaces
and cannot represent XHTML documents with namespace information.
Therefore, in order to use the default HTML DOM implementation with NekoHTML's
DOMParser to parse XHTML documents, you must turn off namespace processing.*/
parser.setFeature("http://xml.org/sax/features/namespaces", false);

String strURL = "http://product.dangdang.com/product.aspx?product_id=9317290";
BufferedReader in = new BufferedReader(
new InputStreamReader(
new URL(strURL).openStream()));
parser.parse(new InputSource(in));
in.close();
} catch (Exception e) {
e.printStackTrace();
}
Document doc = parser.getDocument();
// tags should be in upper case
String productsXpath = "/HTML/BODY/DIV[2]/DIV[4]/DIV[2]/DIV/DIV[3]/UL[@class]/LI[9]";
NodeList products;
try {
products = XPathAPI.selectNodeList(doc, productsXpath);
System.out.println("found: " + products.getLength());
Node node = null;
for(int i=0; i< products.getLength();i++)
{
node = products.item(i);
System.out.println( i + ":\n" + node.getTextContent());
}
}catch (TransformerException e) {
e.printStackTrace();
}

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