dom4j写xml文件测试-优快云博客

本文介绍使用dom4j库创建XML文件的过程。通过具体示例代码展示了如何定义XML结构，包括添加元素、属性等，并最终将构建的XML文档写入到文件中。

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dom4j写xml文件测试：

package com.yanek.demo.xml.test;

import java.io.File;
import java.io.FileWriter;

import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.XMLWriter;

public class DOM4j {

public static void main(String[] args) {
// dom4j解析xml测试

// 1. dom4j写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>
*/
Document document = DocumentHelper.createDocument();
Element actionsElement = document.addElement("actions");

Element actionElement1 = actionsElement.addElement("action");
actionElement1.addAttribute("path", "/test");
actionElement1.addAttribute("class", "com.mystruts.demo.LoginAction");

Element forwardElement1 = actionElement1.addElement("forward");
forwardElement1.addAttribute("name", "success");
forwardElement1.addAttribute("url", "hello.jsp");

Element forwardElement2 = actionElement1.addElement("forward");
forwardElement2.addAttribute("name", "fail");
forwardElement2.addAttribute("url", "fail.jsp");

Element actionElement2 = actionsElement.addElement("action");
actionElement2.addAttribute("path", "/user");
actionElement2.addAttribute("class", "com.mystruts.demo.UserAction");

Element forwardElement21 = actionElement2.addElement("forward");
forwardElement21.addAttribute("name", "success");
forwardElement21.addAttribute("url", "list.jsp");

Element forwardElement22 = actionElement2.addElement("forward");
forwardElement22.addAttribute("name", "fail");
forwardElement22.addAttribute("url", "fail.jsp");

try {
/** 将document中的内容写入文件中 */
XMLWriter writer = new XMLWriter(new FileWriter(new File(
"d://mystruts.xml")));
writer.write(document);
writer.close();
/** 执行成功,需返回1 */

} catch (Exception ex) {
ex.printStackTrace();
}

System.out.println(document.asXML());

}

生成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>