java如何读取xml文件

xml解析还是用dom4j方便，

import java.util.List

import org.dom4j.Document

import org.dom4j.DocumentException

import org.dom4j.Element

import org.dom4j.io.SAXReader

public class XMLPaser {

public static void main(String[] args) {

paserXML()

}

public static void paserXML(){

SAXReader reader = new SAXReader()

try {

// 读取XML文件

Document doc = reader.read("NewFile.xml")

Element root = doc.getRootElement()

System.out.println(root.getName())

List<Element> param = root.elements()

for (Element element : param) {

if(element.attributeValue("name").equals("a")){

System.out.println(element.getText())

}

}

} catch (DocumentException e) {

e.printStackTrace()

}

}

}

import java.util.List

import org.dom4j.Document

import org.dom4j.DocumentException

import org.dom4j.Element

import org.dom4j.io.SAXReader

public class XmlTester {

    public static void main(String[] args) throws DocumentException {

        // 使用了dom4j解析xml

        // 读取目录下用来测试的test.xml文件，取得xml主内容

        Document document = new SAXReader().read("src/abc/test.xml").getDocument()

        int i = 1

        // 遍历文档根节点（wuxialist）下的子节点列表，即txtbook节点的集合

        for(Element txtbook : (List<Element>)document.getRootElement().elements()){

            //取得txtbook节点下的name节点的内容

            System.out.println(i+"."+txtbook.element("name").getText())

            i++//原来这里少些了这一行，先补上

        }

    }

}

参考：

import javax.xml.parsers.DocumentBuilderFactory

import javax.xml.parsers.DocumentBuilder

import org.w3c.dom.Document

import org.w3c.dom.NodeList

import org.w3c.dom.Node

import org.w3c.dom.Element

import java.io.File

public class ReadXMLFile {

public static void main(String argv[]) {

try {

File fXmlFile = new File("/Users/mkyong/staff.xml")

DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance()

DocumentBuilder dBuilder = dbFactory.newDocumentBuilder()

Document doc = dBuilder.parse(fXmlFile)

//optional, but recommended

//read this - http://stackoverflow.com/questions/13786607/normalization-in-dom-parsing-with-java-how-does-it-work

doc.getDocumentElement().normalize()

System.out.println("Root element :" + doc.getDocumentElement().getNodeName())

NodeList nList = doc.getElementsByTagName("staff")

System.out.println("----------------------------")

for (int temp = 0temp <nList.getLength()temp++) {

Node nNode = nList.item(temp)

System.out.println("\nCurrent Element :" + nNode.getNodeName())

if (nNode.getNodeType() == Node.ELEMENT_NODE) {

Element eElement = (Element) nNode

System.out.println("Staff id : " + eElement.getAttribute("id"))

System.out.println("First Name : " + eElement.getElementsByTagName("firstname").item(0).getTextContent())

System.out.println("Last Name : " + eElement.getElementsByTagName("lastname").item(0).getTextContent())

System.out.println("Nick Name : " + eElement.getElementsByTagName("nickname").item(0).getTextContent())

System.out.println("Salary : " + eElement.getElementsByTagName("salary").item(0).getTextContent())

}

}

} catch (Exception e) {

e.printStackTrace()

}

}

}

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