import java.io.InputStream; import java.util.ArrayList; import java.util.List; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import cn.itcast.xml.domain.Person; /** * 使用Dom解析xml文件 * */ public class DomXMLReader { public static List readXML(InputStream inStream) { List persons = new ArrayList(); DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); try { DocumentBuilder builder = factory.newDocumentBuilder(); Document dom = builder.parse(inStream); Element root = dom.getDocumentElement(); NodeList items = root.getElementsByTagName(“person”);//查找所有person节点 for (int i = 0; i < items.getLength(); i++) { Person person = new Person(); //得到第一个person节点 Element personNode = (Element) items.item(i); //获取person节点的id属性值 person.setId(new Integer(personNode.getAttribute(“id”))); //获取person节点下的所有子节点(标签之间的空白节点和name/age元素) NodeList childsNodes = personNode.getChildNodes(); for (int j = 0; j < childsNodes.getLength(); j++) { Node node = (Node) childsNodes.item(j); //判断是否为元素类型 if(node.getNodeType() == Node.ELEMENT_NODE){ Element childNode = (Element) node; //判断是否name元素 if (“name”.equals(childNode.getNodeName())) { //获取name元素下Text节点,然后从Text节点获取数据 person.setName(childNode.getFirstChild().getNodeValue()); } else if (“age”.equals(childNode.getNodeName())) { person.setAge(new Short(childNode.getFirstChild().getNodeValue())); } } } persons.add(person); } inStream.close(); } catch (Exception e) { e.printStackTrace(); } return persons; } |
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来自: QCamera > 《interview》