miduo_server/jieling-dbgen/src/main/java/com/dbgen/XMLUtils.java

42 lines
1.2 KiB
Java

package com.dbgen;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
public final class XMLUtils {
public XMLUtils() {
}
public static List<Element> getChildElements(Element e) {
List<Element> list = new ArrayList<>();
NodeList nodes = e.getChildNodes();
for (int i = 0; i < nodes.getLength(); i++) {
Node node = nodes.item(i);
if (node.getNodeType() == Node.ELEMENT_NODE)
list.add((Element) node);
}
return list;
}
private static DocumentBuilder createDocumentBuilder() throws ParserConfigurationException {
final DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setXIncludeAware(true);
factory.setNamespaceAware(true);
return factory.newDocumentBuilder();
}
public static Element getRootElement(File file) throws Exception {
DocumentBuilder db = createDocumentBuilder();
final Document doc = db.parse(file);
return doc.getDocumentElement();
}
}