这篇文章主要介绍“JDom如何新建和读取xml”，在日常操作中，相信很多人在JDom如何新建和读取xml问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”JDom如何新建和读取xml”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！
//package xml;
import java.io.File;
import java.io.FileWriter;
import java.util.Iterator;
import java.util.List;
//import org.jdom.*;
import org.jdom.Attribute;
import org.jdom.Comment;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;
import org.jdom.output.XMLOutputter;
public class test {
private static String titlename;
private String chapter;
private String topic;
public static void main(String [] msg){
wriXml();
// try{
readXml();
// }catch (Exception e){e.printStackTrace();}
}
public static void readXml() {
SAXBuilder builder=new SAXBuilder();
try{
Document document=builder.build(new File("contents.xml"));
Element root=document.getRootElement();
Element title=root.getChild("title");
System.out.println(title.getText());
Element contents=root.getChild("contents");
List lis=contents.getChildren("chapter");
Iterator it=lis.iterator();
while(it.hasNext()){
Element chapter=(Element) it.next();
System.out.println(chapter.getAttribute("title"));
}
}catch(Exception e){e.printStackTrace();}
}
public static void wriXml(){
Element ele=new Element("boot");
Document doc=new Document(ele);
ele.addAttribute(new Attribute("vin","123456789"));
ele.addContent(new Element("first").addContent("guoxb"));
ele.addContent(new Element("second").addContent("30"));
ele.addContent(new Element("third").addContent("univercity"));
ele.addContent(new Element("first").addContent("girlfri").addAttribute("name","22"));
ele.addContent(new Element("right"));
ele.addContent(new Comment("这是一条主释"));
Element gg=ele.getChild("right");
gg.addContent(new Element("pkg").addContent("thhhhhhhh"));
//访问子元素
Element fir=ele.getChild("first");
//去处子元素
boolean remo=ele.removeChild("first");
//打印输出xml
try{
XMLOutputter out=new XMLOutputter(" ",true);
out.setEncoding("gb2312");
out.output(doc,System.out);
//保存到xml文档中
FileWriter fi=new FileWriter("./gxb.xml");
out.output(doc,fi);
fi.close(); }catch (Exception e){e.printStackTrace();}
}
}
[@more@]
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