dom4j (2) 编辑

来源：互联网发布：淘宝卫生巾假货编辑：程序博客网时间：2024/06/07 03:27

这次搞个基金的信息fund.xml放在工程根目录下：

<?xml version="1.0" encoding="utf-8" ?><funds><fund ID="0"><name>华夏大盘</name><code>000011</code><type>混合型</type><url>http://jingzhi.funds.hexun.com/000011.shtml</url></fund><fund ID="1"><name>华安宏利</name><code>040005</code><type>股票型</type><url>http://jingzhi.funds.hexun.com/040005.shtml</url></fund></funds>

ID还是大写字母的"ID"作attribute。

构造个相应的Java Bean：

package leon.corejava.model;public class Fund {private String name;private String code;private String url;private String type;public String toString(){return this.code+"\t"+this.name+"\t"+this.url;}//getter and setter//...}

测试类：

package leon.corejava.xml;import java.io.File;import java.io.FileWriter;import java.io.IOException;import java.util.ArrayList;import java.util.Iterator;import java.util.List;import leon.corejava.model.Fund;import org.dom4j.Document;import org.dom4j.Element;import org.dom4j.io.OutputFormat;import org.dom4j.io.SAXReader;import org.dom4j.io.XMLWriter;public class FundXMLTest {public static final String ID="ID";public static void main(String[] args) throws Exception {File xmlFile = new File("fund.xml");SAXReader reader = new SAXReader();Document doc = reader.read(xmlFile);Element root = doc.getRootElement();List<Fund> fundList = new ArrayList<Fund>();int i=0;for(Iterator iter = root.elementIterator();iter.hasNext();){              Element element = (Element) iter.next();              fundList.add(elementToFund(element));            i++;}for(Fund f : fundList){System.out.println(f);}//modify elementElement e = root.elementByID("0");e.element("name").setText("华夏大盘精选");//add new elementElement newFund = root.addElement("fund");newFund.addAttribute(ID, String.valueOf(i));newFund.addElement("name").setText("中信双利");newFund.addElement("code").setText("288102");newFund.addElement("url").setText("http://jingzhi.funds.hexun.com/288102.shtml");write(doc,new File("new_fund.xml"));}public static Fund elementToFund(Element e){Fund f = new Fund();f.setCode(e.element("code").getTextTrim());f.setName(e.element("name").getTextTrim());f.setUrl(e.element("url").getTextTrim());f.setType(e.element("type").getTextTrim());return f;}public static void write(Document document,File f) throws IOException {// format xmlOutputFormat format = OutputFormat.createPrettyPrint();// format short xml//format = OutputFormat.createCompactFormat();//not format//XMLWriter writer = new XMLWriter(new FileWriter(f));//format.setEncoding("GBK");//formatXMLWriter writer = new XMLWriter(new FileWriter(f),format);writer.write(document);/*// format short xmlformat = OutputFormat.createCompactFormat();writer = new XMLWriter(System.out, format);*/writer.close();}}

工程根目录创建出一个新的文件new_fund.xml。