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javaでXpathを使う(2)
をテンプレートにして作成
開始行:
*javaでXpathを使う(2) [#mab7e333]
該当するXPathの要素があるかどうか知りたかったので作ったク...
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
public class UseXpath {
Document docRdf = null;
XPath xpath = null;
public UseXpath(String dcndl) throws Exception {
InputSource is = new InputSource(new StringReade...
DocumentBuilderFactory factory = DocumentBuilder...
factory.setNamespaceAware(true);
DocumentBuilder builder;
builder = factory.newDocumentBuilder();
docRdf = builder.parse(is);
XPathFactory xPathFactory = XPathFactory.newInst...
xpath = xPathFactory.newXPath();
}
// 該当するXpathのノード数を返却
public int getElementsCount(String expression)
throws XPathExpressionException {
Object result = xpath.evaluate(expression, docRdf,
XPathConstants.NODESET);
NodeList list = (NodeList) result;
return list.getLength();
}
// 該当するXpathのノードリストを返却
public NodeList getElements(String expression)
throws XPathExpressionException {
Object result = xpath.evaluate(expression, docRdf,
XPathConstants.NODESET);
return (NodeList) result;
}
}
終了行:
*javaでXpathを使う(2) [#mab7e333]
該当するXPathの要素があるかどうか知りたかったので作ったク...
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
public class UseXpath {
Document docRdf = null;
XPath xpath = null;
public UseXpath(String dcndl) throws Exception {
InputSource is = new InputSource(new StringReade...
DocumentBuilderFactory factory = DocumentBuilder...
factory.setNamespaceAware(true);
DocumentBuilder builder;
builder = factory.newDocumentBuilder();
docRdf = builder.parse(is);
XPathFactory xPathFactory = XPathFactory.newInst...
xpath = xPathFactory.newXPath();
}
// 該当するXpathのノード数を返却
public int getElementsCount(String expression)
throws XPathExpressionException {
Object result = xpath.evaluate(expression, docRdf,
XPathConstants.NODESET);
NodeList list = (NodeList) result;
return list.getLength();
}
// 該当するXpathのノードリストを返却
public NodeList getElements(String expression)
throws XPathExpressionException {
Object result = xpath.evaluate(expression, docRdf,
XPathConstants.NODESET);
return (NodeList) result;
}
}
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