Java 使用jaxp添加节点

时间：2022-10-07 17:23:20
<?xml version="1.0" encoding="UTF-8"?>

<person>

    <p1>

        <name>jobs</name>

        <age>56</age>

    </p1>

    <p1>

        <name>Alis</name>

        <age>32</age>

    </p1>

</person>
package jaxp;

import javax.xml.parsers.DocumentBuilder;

import javax.xml.parsers.DocumentBuilderFactory;

import javax.xml.transform.Transformer;

import javax.xml.transform.TransformerFactory;

import javax.xml.transform.dom.DOMSource;

import javax.xml.transform.stream.StreamResult;

import org.w3c.dom.Document;

import org.w3c.dom.Element;

import org.w3c.dom.Node;

import org.w3c.dom.NodeList;

import org.w3c.dom.Text;

public class TestJaxp {

    public static void main(String[] args) {

        try {

            addSex();

        } catch (Exception e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

    }

    public static void addSex() throws Exception{

        //创建解析器工厂

        DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();

        //创建解析器

        DocumentBuilder builder = builderFactory.newDocumentBuilder();

        //解析xml返回document

        Document document = document = builder.parse("src/person.xml");

        // 得到所有的p1

        NodeList list = document.getElementsByTagName("p1");

        // 得到第一个p1

        Node p1 = list.item(0);

        // 创建标签

        Element sex = document.createElement("sex");

        //创建文本

        Text text = document.createTextNode("female");

        //把文本添加到sex下面

        sex.appendChild(text);

        // 把sex添加到p1下面

        p1.appendChild(sex);

        // 回写xml

        TransformerFactory transformerFactory = TransformerFactory.newInstance();

        Transformer transformer = transformerFactory.newTransformer();

        transformer.transform(new DOMSource(document), new StreamResult("src/person.xml"));

    }

}
<?xml version="1.0" encoding="UTF-8" standalone="no"?>

<person>

    <p1>

        <name>jobs</name>

        <age>56</age>

        <sex>female</sex>

    </p1>

    <p1>

        <name>Alis</name>

        <age>32</age>

    </p1>

</person>

相关文章