XML之DOM解析
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import java.io.IOException;
import java.util.ArrayList; import java.util.List; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.ParserConfigurationException; import org.w3c.dom.Document; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import org.xml.sax.SAXException; /** * * DOM解析:一次性将xml文件以树形结构存放到内容中 * * */ public class DOMParserDemo { public static void main(String[] args) { try { List<Person> ps = domParserMethod(); for (Person person : ps) { System.out.println(person); } } catch (ParserConfigurationException e) { e.printStackTrace(); } catch (SAXException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } private static List<Person> domParserMethod() throws ParserConfigurationException,SAXException,IOException { //1.获取解析器工厂对象 DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance(); //2.获取解析器对象 DocumentBuilder db = documentBuilderFactory.newDocumentBuilder(); //3.解析 Document document = db.parse(Thread.currentThread().getContextClassLoader().getResourceAsStream("person.xml")); //准备工作,准备一个集合 List<Person> ps = new ArrayList<Person>(); Person p; //从document里获取数据 NodeList nodeListPersons = document.getElementsByTagName("person"); System.out.println(nodeListPersons.getLength()+"--->size"); for (int i = 0; i < nodeListPersons.getLength(); i++) { Node nodePerson = nodeListPersons.item(i);//一个Person p =new Person(); p.setId(nodePerson.getAttributes().getNamedItem("personid").getNodeValue());//获取person的属性(id) NodeList chNodeList = nodePerson.getChildNodes(); for (int j = 0; j < chNodeList.getLength();j++) { Node chNode = chNodeList.item(j); String name = chNode.getNodeName(); // System.out.println(name); if(name.equals("name")){ p.setName(chNode.getFirstChild().getNodeValue()); }else if(name.equals("address")){ p.setAddress(chNode.getFirstChild().getNodeValue()); }else if(name.equals("tel")){ p.setTel(chNode.getFirstChild().getNodeValue()); }else if(name.equals("fax")){ p.setFax(chNode.getFirstChild().getNodeValue()); }else if(name.equals("email")){ p.setEmail(chNode.getFirstChild().getNodeValue()); } } ps.add(p); } return ps; } } ******************************************************************** Person类 public class Person { private String id; private String name; private String address; private String tel; private String fax; private String email; public Person() { super(); // TODO Auto-generated constructor stub } public Person(String id,String name,String address,String tel,String fax,String email) { super(); this.id = id; this.name = name; this.address = address; this.tel = tel; this.fax = fax; this.email = email; } public String getId() { return id; } public String getName() { return name; } public String getAddress() { return address; } public String getTel() { return tel; } public String getFax() { return fax; } public String getEmail() { return email; } public void setId(String id) { this.id = id; } public void setName(String name) { this.name = name; } public void setAddress(String address) { this.address = address; } public void setTel(String tel) { this.tel = tel; } public void setFax(String fax) { this.fax = fax; } public void setEmail(String email) { this.email = email; } @Override public String toString() { return "Person [id=" + id + ",name=" + name + ",address=" + address + ",tel=" + tel + ",fax=" + fax + ",email=" + email + "]"; } } （编辑：李大同） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |