Product文件:

package com.it.bean;

import java.util.ArrayList;
import java.util.List;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlType;

@XmlRootElement(namespace="http://localhost/xml/product", name="product")
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name="productType", namespace="http://localhost/xml/product")
public class Product
 {
 
  @XmlAttribute(required=true)
  private Integer id;
  @XmlElement(required=true)
  private String name;
  @XmlElement(type=String.class,name="mail")
  private List mails = new ArrayList();
 
  public List getMails() {
   return mails;
  }

  public void setMails(List mails) {
   this.mails = mails;
  }

  public Product() {}
 
  public Product(Integer id, String name) {
   super();
   this.id = id;
   this.name = name;
  }
  public Integer getId() {
   return id;
  }
  public void setId(Integer id) {
   this.id = id;
  }
  public String getName() {
   return name;
  }
  public void setName(String name) {
   this.name = name;
  }
 
 }

测试文件:

package JUnit4.test;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;

import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;

import com.it.bean.Product;

public class RunProduct000000
 {

  @BeforeClass
  public static void setUpBeforeClass() throws Exception
  {
  }

  @AfterClass
  public static void tearDownAfterClass() throws Exception
  {
  }
  @Test
  public void buildXMLFileFromJavaObject() {
   try {
    JAXBContext jc = JAXBContext.newInstance(Product.class);
    Marshaller m = jc.createMarshaller();
    OutputStream s = new FileOutputStream(new File(".","product.xml"));
    //StringWriter writer = new StringWriter();
    Product p = new Product(15, "足球");
    p.getMails().add("你啊好哦");
    p.getMails().add("粑粑意义");
    p.getMails().add(2, "8514796");
    p.getMails().add("4444444");
    m.marshal(p, os);
   } catch (Exception e) {
    e.printStackTrace();
   }
  }
  @Test
  public void readXMLFileToJavaObject() {
   try {
    JAXBContext jc = JAXBContext.newInstance(Product.class);
    Unmarshaller m = jc.createUnmarshaller();
    InputStream in = new FileInputStream(new File(".","product.xml"));
    Product product = (Product)m.unmarshal(in);
    System.out.println("id="+ product.getId()+",name="+ product.getName());
       List mails=new ArrayList();
       mails=product.getMails();
       for (String mail:mails)
       {
        System.out.println(mail);
       }
   } catch (FileNotFoundException e) {
    e.printStackTrace();
   } catch (JAXBException e) {
    e.printStackTrace();
   }
  }

 }