一、依赖

  <dependency>
      <groupId>org.dom4j</groupId>
      <artifactId>dom4j</artifactId>
      <version>2.1.3</version>
      <scope>compile</scope>
    </dependency>

二、XML样例文件

<mymvc>
    <actions>
        <action name="list" class="controller.List">
            <result name="toListJSP">
                /list.jsp
            </result>
            <result name="toShowUserinfoList" type="'redirect">
                showUserinfoList.ghy
            </result>
        </action>
        <action name="showUserinfoList" class="controller.ShowUserinfoList">
            <result name="toShowUserinfoListJSP">
                /showUserinfoList.jsp
            </result>
        </action>
    </actions>
</mymvc>

三、读取XML文件

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

import java.util.List;

public class Reader {
    public static void main(String[] args) throws DocumentException {
        SAXReader reader=new SAXReader();
        //1、读取XML文件
        Document document = reader.read(reader.getClass().getResourceAsStream("/struts.xml"));
        //2、获取根元素
        Element rootElement = document.getRootElement();
        //打印根元素名字
        System.out.println("根元素名字："+rootElement.getName());
        //获取指定元素
        Element actions = rootElement.element("actions");
        System.out.println("actions:"+actions.getName());
        //获取根元素的所有子元素
        List<Element> rootChildren = rootElement.elements();
        for (Element child : rootChildren) {
            System.out.println("子元素名字："+child.getName());
            List<Element> childChildren = child.elements();
            if (childChildren!=null&&childChildren.size()>0) {
                for (Element childChild : childChildren) {                    //获取子元素名字
                    System.out.println("子元素-子元素名字："+childChild.getName());
                    System.out.println("子元素-子元素name属性"+childChild.attribute("name").getValue());
                    List<Attribute> attributes = childChild.attributes();
                    if (attributes!=null&&attributes.size()>0) {
                        for (Attribute attribute : attributes) {
                            System.out.println("子元素-子元素属性名字："+attribute.getName()+"子元素-子元素属性值："+attribute.getValue());
                        }
                    }
                    List<Element> elements = childChild.elements();
                    if (elements!=null&&elements.size()>0) {
                        for (Element element : elements) {
                            //获取元素值
                            System.out.println(element.getTextTrim());
                        }
                    }
                }
            }
        }

    }
}

根元素名字：mymvc
actions:actions
子元素名字：actions
子元素-子元素名字：action
子元素-子元素name属性list
子元素-子元素属性名字：name子元素-子元素属性值：list
子元素-子元素属性名字：class子元素-子元素属性值：controller.List
/list.jsp
showUserinfoList.ghy
子元素-子元素名字：action
子元素-子元素name属性showUserinfoList
子元素-子元素属性名字：name子元素-子元素属性值：showUserinfoList
子元素-子元素属性名字：class子元素-子元素属性值：controller.ShowUserinfoList
/showUserinfoList.jsp