Java解析XML文件使用Dome4J解析

Java解析XML文件使用Dome4J解析

1，必须下载Dome4j包，（自行百度）

2，导包

3，就可以开始解析了

import java.io.FileWriter;

import java.io.IOException;

import java.util.Iterator;

import org.dom4j.Document;

import org.dom4j.DocumentException; import org.dom4j.Element;

import org.dom4j.io.OutputFormat; import org.dom4j.io.SAXReader; import org.dom4j.io.XMLWriter;

public class Dome04 {

private Document doc;

public void document() {

SAXReader saxReader = new SAXReader();

try {

doc = saxReader.read("NewFile.xml");

} catch (DocumentException e) {

e.printStackTrace();

}

}

// 读取XML文件

public void shouinfo() {

Element dome = doc.getRootElement();

Iterator it = dome.elementIterator();

while (it.hasNext()) {

Element a = (Element) it.next();

System.out.println(a.attributeValue("name"));

Iterator its = a.elementIterator();

while (its.hasNext()) {

Element b = (Element) its.next();

System.out.println(b.attributeValue("name"));

}

}

}

// 写入XML文件

public void saver(String path) {

OutputFormat format = new OutputFormat();

format.setEncoding("GBK");

try {

XMLWriter writer = new XMLWriter(new FileWriter(path), format);

writer.write(doc);

writer.close();

} catch (IOException e) {

e.printStackTrace();

}

}

// 增加元素

public void add() {

// 获得XML节点

Element dome = doc.getRootElement();

// Brand创建标签

Element e1 = dome.addElement("Brand");

// 设置标签属性

e1.addAttribute("name", "三星");

// 创建type标签

Element e2 = e1.addElement("type");

// 设置标签属性

e2.addAttribute("name", "Noad");

saver("dome2.xml");

}

// 添加属性值

public void upDelete() {

Element dome = doc.getRootElement();

int i = 0;

Iterator it = dome.elementIterator();

while (it.hasNext()) {

Element elen = (Element) it.next();

++i;

elen.addAttribute("ID", i + "");

saver("dome2.xml");

}

}

// 删除元素

public void delete() {

Element dome = doc.getRootElement();

Iterator it = dome.elementIterator();

while (it.hasNext()) {

Element eln = (Element) it.next();

if (eln.attributeValue("name").equals("华为")) {

eln.getParent().remove(eln);

}

}

saver("dome2.xml");

}

public static void main(String[] args) { Dome04 dome = new Dome04();

dome.document();

dome.delete();

}

}