JDom使用详解

import java.io.*;
import org.jdom.*;
import org.jdom.input.*;
import org.jdom.output.*;

public class CreateXML
{
  public void Create()
  {
   try
   {
    Document doc = new Document();  
    ProcessingInstruction pi=new ProcessingInstruction("xml-stylesheet","type="text/xsl" href="test.xsl"");
    doc.addContent(pi);
    
    Namespace ns = Namespace.getNamespace("http://www.bromon.org" );
    Namespace ns2 = Namespace.getNamespace("other", "http://www.w3c.org" );

    Element root = new Element("根元素", ns);
    root.addNamespaceDeclaration(ns2);
    doc.setRootElement(root);
    Element el1 = new Element("元素一");
    el1.setAttribute("属性", "属性一");
    
    Text text1=new Text("元素值");
             Element em = new Element("元素二").addContent("第二个元素");

    el1.addContent(text1);
             el1.addContent(em);
            
             Element el2 = new Element("元素三").addContent("第三个元素");

             root.addContent(el1);
             root.addContent(el2);
            
             //缩进四个空格,自动换行,gb2312编码
             XMLOutputter outputter = new XMLOutputter("  ", true,"GB2312");
             outputter.output(doc, new FileWriter("test.xml"));
         }catch(Exception e)
         {
          System.out.println(e);
         }
     }
    
     public static void main(String args[])
     {
      new CreateXML().Create();
     }
    
}

import java.io.*;
import org.jdom.*;
import org.jdom.input.*;
import org.jdom.output.*;

public class XMLWithDTD
{
  public void validate()
  {
   try
   {
    SAXBuilder builder = new SAXBuilder(true);
    builder.setFeature("http://xml.org/sax/features/validation";,true);
    Document doc = builder.build(new FileReader("author.xml"));
    
    System.out.println("搞掂");
    XMLOutputter outputter = new XMLOutputter();
    outputter.output(doc, System.out);
   }catch(Exception e)
   {
    System.out.println(e);
   }
  
  }
  public static void main(String args[])
  {
   new XMLWithDTD().validate();
  }
  
}

import java.io.*;
import org.jdom.*;
import org.jdom.input.*;
import org.jdom.output.*;

public class XMLWithSchema
{
  String xml="test.xml";
  String schema="test-schema.xml";
  public void validate()
  {
   try
   {
    SAXBuilder builder = new SAXBuilder(true);
    //指定约束方式为XML schema
    builder.setFeature("http://apache.org/xml/features/validation/schema";,  true);
    //导入schema文件
    builder.setProperty("http://apache.org/xml/properties/schema/external-noNamespaceSchemaLocation";,schema);
    Document doc = builder.build(new FileReader(xml));
    
    System.out.println("搞掂");
    XMLOutputter outputter = new XMLOutputter();
    outputter.output(doc, System.out);
   }catch(Exception e)
   {
    System.out.println("验证失败:"+e);
   }
  
  }
  
}