dom4j解析xml文件实例-优快云博客

本文通过一个具体的示例展示了如何使用dom4j库来解析XML文件。该示例从XML文件中读取动作配置信息，包括路径、类名及转发等属性，并将这些信息打印出来。适用于希望了解dom4j基本用法的开发者。

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dom4j解析xml文件实例

package com.yanek.demo.xml.test;

import java.io.File;
import java.util.List;

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

public class Dm4jReadXml {

/**
* @param args
*/
public static void main(String[] args) {

// dom4j读xml,解析xml

/**
* <?xml version="1.0" encoding="UTF-8"?> <actions><action path="/test"
* class="com.mystruts.demo.LoginAction"><forward name="success"
* url="hello.jsp"/><forward name="fail" url="fail.jsp"/></action><action
* path="/user" class="com.mystruts.demo.UserAction"><forward
* name="success" url="list.jsp"/><forward name="fail" url="fail.jsp"/></action></actions>
*/

SAXReader saxReader = new SAXReader();
try {
Document document = saxReader.read(new File("d://mystruts.xml"));
Element root = document.getRootElement();

List actions = root.elements("action");

for (int i = 0; i < actions.size(); i++) {
Element action = (Element) actions.get(i);
System.out.println("action.path=="
+ action.attributeValue("path"));
System.out.println("action.class=="
+ action.attributeValue("class"));

List forwards = action.elements("forward");
for (int j = 0; j < forwards.size(); j++) {

Element forward = (Element) forwards.get(j);
System.out.println("forward.name=="
+ forward.attributeValue("name"));
System.out.println("forward.url=="
+ forward.attributeValue("url"));
}

}

} catch (DocumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}

执行结果：

action.path==/test
action.class==com.mystruts.demo.LoginAction
forward.name==success
forward.url==hello.jsp
forward.name==fail
forward.url==fail.jsp
action.path==/user
action.class==com.mystruts.demo.UserAction
forward.name==success
forward.url==list.jsp
forward.name==fail
forward.url==fail.jsp