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 + "]"; } }

原文链接：https://www.f2er.com/xml/294846.html