Android(安卓)采用DOM解析XML内容 【学习记录】
16lz
2021-12-04
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 com.android.mldn.domain.Person;
public class DOMPersonService { /** * 采用DOM解析XML内容 */ public static List<Person> getPersons(InputStream inStream) throws Throwable{ List<Person> persons = new ArrayList<Person>(); DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); DocumentBuilder builder = factory.newDocumentBuilder(); //对xml 文件进行解析 Document document = builder.parse(inStream); //得到元素的根节点 Element root = document.getDocumentElement(); //得到person 节点 NodeList personNodes = root.getElementsByTagName("person"); //遍历内部节点元素 for (int i = 0; i < personNodes.getLength(); i++) { //创建一个person 实例 Person person = new Person(); Element personElement = (Element) personNodes.item(i); //查找 名称为 id 的元素节点 person.setId(new Integer(personElement.getAttribute("id"))); //读取 子节点 NodeList personChilds = personElement.getChildNodes(); for (int j = 0; j < personChilds.getLength(); j++) { //判断当前节点是否是元素类型节点 if (personChilds.item(j).getNodeType() == Node.ELEMENT_NODE) { Element childElement = (Element)personChilds.item(j); if ("name".equals(childElement.getNodeName())) { person.setName(childElement.getFirstChild().getNodeValue()); }else if ("age".equals(childElement.getNodeName())) { person.setAge(new Short(childElement.getFirstChild().getNodeValue())); } } } persons.add(person); } return persons; } }
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