dom4J读取XML

/**
 * 
 */
package com.ces.component.archive.utils;

import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.dom4j.Attribute;
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;


/**
 * @author ronghui
 * @创建日期:2020-4-26
 */
public class MyNode {
    //节点名
    public String name = "";
    //节点值
    public String text = "";
    //属性
    public Map<String,String> attrs = new HashMap<String,String>();
    //子节点
    public Map<String,MyNode> nodeMap = new HashMap<String,MyNode>();
    //节点集合
    public List<MyNode> nodeList = new ArrayList<MyNode>();
    
    /**
     * 获取属性值
     * @param: 
     * @author: 戎辉
     * @Time: 2020-4-26 下午4:03:47
     */
    public String getAttr(String name){
        return attrs.get(name);
    }
    
    /**
     * 根据子节点名获取子节点
     * @param: 
     * @author: 戎辉
     * @Time: 2020-4-26 下午4:03:47
     */
    public MyNode getNode(String name){
        return nodeMap.get(name);
    }
    
    
    /**
     * 根据下标获取子节点
     * @param: 
     * @author: 戎辉
     * @Time: 2020-4-26 下午4:03:47
     */
    public MyNode get(int i){
        return nodeList.get(i);
    }
    
    /**
     * 获取子节点值
     * @param: 
     * @author: 戎辉
     * @Time: 2020-4-26 下午4:34:09
     */
    public String getString(String name){
        final MyNode myNode = nodeMap.get(name);
        if(myNode != null){
            return myNode.toString();
        }else{
            return "";
        }
    }
    
    public String toString(){
        return this.text;
    }
    
    /**
     * 读取XML文件
     * @param: 
     * @author: 戎辉
     * @Time: 2020-4-26 下午4:10:06
     */
    public static MyNode readerXml(String xmlPath){
        return readerXml(new File(xmlPath));
    }
    
    /**
     * 读取XML文件
     * @param: 
     * @author: 戎辉
     * @Time: 2020-4-26 下午4:10:06
     */
    public static MyNode readerXml(File xml){
        // 创建的对象reader
        SAXReader reader = new SAXReader();
        // 通过reader对象的read方法加载xml文件，获取document对象
        Document document = null;
        try {
            document = reader.read(xml);
        } catch (DocumentException e) {
            e.printStackTrace();
        }
        MyNode node = new MyNode();
        if(document!=null){
            // 通过document对象获取根节点
            Element root = document.getRootElement();
            xmlElementIterator(root,node);
        }
        return node;
    }
    
    private static void xmlElementIterator(Element element,MyNode myNode){
        myNode.name = element.getName();
        myNode.text = element.getText();
        
        //处理属性
        @SuppressWarnings("unchecked")
        final List<Attribute> attributes = element.attributes();
        for(Attribute attribute:attributes){
            myNode.attrs.put(attribute.getName(), attribute.getValue());
        }

        //处理子节点
        @SuppressWarnings("unchecked")
        final List<Element> elements = element.elements();
        for(Element subElement:elements){
            MyNode node = new MyNode();
            xmlElementIterator(subElement,node);
            myNode.nodeMap.put(node.name, node);
            myNode.nodeList.add(node);
            
        }
        
    }
}

final MyNode root = MyNode.readerXml(xml);