Java学习---XML的读写操作

DOM4_Jwriter.java

package com.ftl.xmlparse;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;

import org.dom4j.*;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.XMLWriter;

public class DOM4_Jwriter
{
    public static void main(String[] args)
    {
        // 创建文档
        Document doc = DocumentHelper.createDocument();
        // 定义节点

        Element addresslist = doc.addElement("addresslist");
        Element linkman = addresslist.addElement("linkman");
        Element employee = addresslist.addElement("employee");
        Element name = linkman.addElement("name");
        Element email = linkman.addElement("email");
        Element salary = employee.addElement("salary");
        Element job = employee.addElement("engineer");
        name.setText("FTL1012");
        email.setText("www.44.com");
        salary.setText("15000+");
        job.setText("Java开发");
        // 定义输出格式
        OutputFormat format = OutputFormat.createPrettyPrint();
        format.setEncoding("GBK");
        try
        {
            XMLWriter writer = new XMLWriter(new FileOutputStream(new File("G:"
                    + File.separator + "outputt.xml")), format);
            writer.write(doc);
            writer.close();
        } catch (Exception e)
        {
            e.printStackTrace();
        }

    }

}

DOM4J_Jreader.java

package com.huawei.xmlparse;

import java.io.File;
import java.util.Iterator;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

public class DOM4J_Jreader
{

    public static void main(String[] args)
    {
        // TODO 自动生成的方法存根
        File file = new File("G:" + File.separator + "outputt.xml");
        SAXReader reader = new SAXReader();
        Document doc = null;
        try
        {
            doc = reader.read(file);
        } catch (DocumentException e)
        {
            e.printStackTrace();
        }
        Element root = doc.getRootElement();
        Iterator iter = root.elementIterator();
        while (iter.hasNext())
        {
            Element linkman = (Element) iter.next();
            System.out.println("姓名：" + linkman.elementText("name"));
            System.out.println("邮件：" + linkman.elementText("email"));
            Element employee = (Element) iter.next();
            System.out.println("薪资：" + employee.elementText("salary"));
            System.out.println("工作：" + employee.elementText("engineer"));

        }
    }

}

XML.java

package com.ftl.xmlparse;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;

import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.XMLWriter;

public class XML
{
    public static void main(String[] args)
    {
        Document doc = DocumentHelper.createDocument();
        Element school = doc.addElement("school");
        Element person = school.addElement("person");
        Element library = school.addElement("library");
      
        Element id = person.addElement("id");
        school.setText("xxx");
        library.setText("xu");
        person.setText("FTL1012");
        id.setText("041077");
        OutputFormat format = OutputFormat.createCompactFormat();
        format.setEncoding("GBK");
        try
        {
            XMLWriter writer = new XMLWriter(new FileOutputStream("G:"
                    + File.separator + "new2016.xml"), format);
            writer.write(doc);
            writer.close();

        } catch (UnsupportedEncodingException e)
        {
            // TODO 自动生成的 catch 块
            e.printStackTrace();
        } catch (FileNotFoundException e)
        {
            // TODO 自动生成的 catch 块
            e.printStackTrace();

        } catch (IOException e)
        {
            // TODO 自动生成的 catch 块
            e.printStackTrace();
        }

    }
}

XMLReader.java

package com.ftl.xmlparse;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.Iterator;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;

public class XMLReader
{
    public static void main(String[] args)
    {
        File file = new File("G:" + File.separator + "new2016.xml");
        SAXReader readr = new SAXReader();
        Document doc = null;
        try
        {
            doc = readr.read(file);
        } catch (DocumentException e)
        {
            // TODO 自动生成的 catch 块
            e.printStackTrace();
        }
        Element root = doc.getRootElement();
        Iterator iter = root.elementIterator();
        while (iter.hasNext())
        {
            Element person = (Element) iter.next();
            System.out.println("图书馆：" + root.elementText("library"));
            System.out.println("人：：" + root.elementText("person"));
            System.out.println("姓名：" + person.elementText("id"));
        }
    }
}