使用XStream将对象序列化到XML以及从XML反序列化到对象

 首先下载XStream-X.X.X.jar包，然后加载到类路径下。例子代码如下：

 

import java.io.*;
import java.beans.*;
import com.thoughtworks.xstream.*;
import com.thoughtworks.xstream.io.xml.*;
public class Test ...{
 

 /** *//**
  * @param args
  * @throws IOException
  * @throws ClassNotFoundException 
  */
 public static void main(String[] args) throws IOException, ClassNotFoundException ...{
  // TODO Auto-generated method stub
  jdkReader();
  }
 public static void xstreamWriter() throws IOException...{
  FileWriter fw = new FileWriter("out.xml",true);
  XStream xstream = new XStream();
  ObjectOutputStream out = xstream.createObjectOutputStream(fw);

  out.writeObject(new Person("Joe", "Walnes"));
  out.writeObject(new Person("Someone", "Else"));
  out.writeObject("hello");
  out.writeInt(12345);

  out.close();
  
 }
 public static void xstreamReader() throws IOException, ClassNotFoundException...{
  FileReader fr = new FileReader("out.xml");
  XStream xstream = new XStream(new DomDriver());
  ObjectInputStream in = xstream.createObjectInputStream(fr);
  
  Person a = (Person)in.readObject();
  Person b = (Person)in.readObject();
  String c = (String)in.readObject();
  int d = in.readInt();
  
  System.out.println(a.getFirstName());
  System.out.println(b.getFirstName());
  System.out.println(c);
  System.out.println(d);
 }
 public static void jdkWriter() throws FileNotFoundException...{
  XMLEncoder e = new XMLEncoder(new BufferedOutputStream(new FileOutputStream("Test.xml")));
        e.writeObject(new Person("Hello,","world"));
        e.close();
 }
 public static void jdkReader() throws FileNotFoundException...{
  XMLDecoder d = new XMLDecoder(new BufferedInputStream(new FileInputStream("Test.xml")));
  Person p = (Person)d.readObject();
  d.close();
  System.out.println(p.getFirstName());
 }
}

public class Person ...{
 private String firstName;
 private String lastName;
 public Person()...{
 }
 public Person(String afirstName,String alastName)...{
  firstName = afirstName;
  lastName = alastName;
 }
 public String getFirstName() ...{
  return firstName;
 }
 public void setFirstName(String firstName) ...{
  this.firstName = firstName;
 }
 public String getLastName() ...{
  return lastName;
 }
 public void setLastName(String lastName) ...{
  this.lastName = lastName;
 }

}

jdk提供的方法只能对JavaBean对象进行序列化，所以具有局限性，而且只能序列化xxxSetter(),xxxGetter,removeXXX()方法。