java 读取xml

<?xml version=   ecodeinf=   ?>

<parms name="xxx">
    <param name="a">this is for test</param>
    <param name="b">this is for test</param>
    <param name="c">this is for test</param>
</parms>
1.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();

        }

    }

}

 

 

2.老方法

 

Java code

 

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public static void main(String args[]) {         readXmlFile("etc/accoumt.xml"); } public static void readXmlFile(String fileName) {     Element element = null;     File f = new File(fileName);     DocumentBuilder db = null; // documentBuilder为抽象不能直接实例化(将XML文件转换为DOM文件)     DocumentBuilderFactory dbf = null;     try {         dbf = DocumentBuilderFactory.newInstance(); // 返回documentBuilderFactory对象         db = dbf.newDocumentBuilder();// 返回db对象用documentBuilderFatory对象获得返回documentBuildr对象         Document dt = db.parse(f); // 得到一个DOM并返回给document对象         element = dt.getDocumentElement();// 得到一个elment根元素         System.out.println("根元素：" + element.getNodeName()); // 获得根节点         NodeList childNodes = element.getChildNodes(); // 获得根元素下的子节点         for (int i = 0; i < childNodes.getLength(); i++) // 遍历这些子节点         {             Node node1 = childNodes.item(i); // childNodes.item(i);             // 获得每个对应位置i的结点             if ("Account".equals(node1.getNodeName())) {                 // 如果节点的名称为"Account"，则输出Account元素属性type                 System.out.println("\r\n找到一个账号. 所属区域:s"+ node1.getAttributes().getNamedItem("type").getNodeValue() + "$$");                 NodeList nodeDetail = node1.getChildNodes(); // 获得<Accounts>下的节点                 for (int j = 0; j < nodeDetail.getLength(); j++) { // 遍历<Accounts>下的节点                     Node detail = nodeDetail.item(j); // 获得<Accounts>元素每一个节点                     if ("code".equals(detail.getNodeName())) // 输出code                         System.out.println("卡号: " + detail.getTextContent());                     else if ("pass".equals(detail.getNodeName())) // 输出pass                         System.out.println("密码: " + detail.getTextContent());                     else if ("name".equals(detail.getNodeName())) // 输出name                         System.out.println("姓名: " + detail.getTextContent());                     else if ("money".equals(detail.getNodeName())) // 输出money                         System.out.println("余额: " + detail.getTextContent());                     }                 }             }         } catch (Exception e) {             System.out.println(e);     } }

XML/HTML code

 

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<?xml version="1.0" encoding="gbk"?> <Accounts>     <Account type="by0003">         <code>100001</code>         <pass>123</pass>         <name>李四</name>         <money>1000000.00</money>     </Account>     <Account type="hz0001">         <code>100002</code>         <pass>123</pass>         <name>张三</name>         <money>1000.00</money>     </Account> </Accounts>