xml配置文件读取documentBuilder

1  data.xml文件：

<?xml version="1.0" encoding="UTF-8"?>
<!--根元素只能有一个 -->
<human>
<person>
    <name value="qwe">陈yi</name>
	<type>亲人</type>
</person>
<person>
    <name value="qwe">陈er</name>
	<type>亲人</type>
</person>
</human>

 2 使用的方法：
   1 通过Factory创建DocumentBuilder:
    DocumentBuilder builder =DocumentBuilderFactory.newInstance().newDocumentBuilder();
   2 将xml文件读取出来--》变为io流--》变为Document
        Document document=builder.parse(XmlTest.class.getResourceAsStream("data.xml"));
   3 得到根标签的子标签们NodeList
        NodeList nos = document.getElementsByTagName("human")
   4 得到标签的主要内容
     String textContent = item.getTextContent();

 3 java代码

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.Node;
import org.w3c.dom.NodeList;
/**
   读取xml中的数据：将xml文件File先读取进来，然后进行解析数据,主要就是一层一层遍历(可以提取出来重复的方法)
 */
public class XmlTest {
	public static void main(String[] args) {
		try {
			DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
			DocumentBuilder builder = factory.newDocumentBuilder();
			/*Document document = builder.parse(
					new FileInputStream("/home/chenwei/eclipse-workspace/test/src/main/java/com/cww/xml/data.xml"));	*/
			Document document=builder.parse(XmlTest.class.getResourceAsStream("data.xml"));
			NodeList nos = document.getElementsByTagName("human");//根标签只能有一个
			for (int a = 0; a < nos.getLength(); a++) {
				Node item1 = nos.item(a);//person
				List<User> users=new ArrayList<User>();
				if (item1 != null && item1.getChildNodes().getLength() > 0) {
					NodeList list1 = item1.getChildNodes();
					for (int i = 0; i < list1.getLength(); i++) {
						Node item = list1.item(i);
						if (item != null && item.getChildNodes().getLength() > 0) {
							NodeList list = item.getChildNodes();
							User user=new User();
							for (int j = 0; j < list.getLength(); j++) {
								Node item2 = list.item(j);
								if (item2 != null && item2.getChildNodes().getLength() > 0) {
									if ("name".equals(item2.getNodeName())) {
										String textContent = item2.getTextContent();
										user.setName(textContent);
									} else if ("type".equals(item2.getNodeName())) {
										String textContent = item2.getTextContent();
										user.setType(textContent);
									}
								}
							}
							users.add(user);
						}
					}
				}
				System.out.println(users.toString());
			}
		} catch (Exception e) {
			throw new RuntimeException("读取xml异常");
		}
	}
}
class User {
	private String name;
	private String type;
	public String getName() {
		return name;
	}
	public void setName(String name){
		this.name = name;
	}
	public String getType(){
		return type;
	}
	public void setType(String type){
		this.type = type;
	}
	public User(String name, String type){
		this.name = name;
		this.type = type;
	}
	public User(){
	}
	@Override
	public String toString() {
		return "["+name+":"+type+"]";
	}
	
}

4 运行结果：

[[陈yi:亲人], [陈er:亲人]]

5 谁有简单的欢迎讨论！！