Java Xstream对象序列化

对于这样一个类：

public class Person {
  private String firstname;
  private String lastname;
  private PhoneNumber phone;
  private PhoneNumber fax;
  // ... constructors and methods
  private void calculate()
  {
  }
}

XStream xstream = new XStream(new DomDriver()); 

Person joe = new Person("Joe", "Walnes");
joe.setPhone(new PhoneNumber(123, "1234-456"));
joe.setFax(new PhoneNumber(123, "9999-999"));

String xml = xstream.toXML(joe);

<person>
  <firstname>Joe</firstname>
  <lastname>Walnes</lastname>
  <phone>
    <code>123</code>
    <number>1234-456</number>
  </phone>
  <fax>
    <code>123</code>
    <number>9999-999</number>
  </fax>
</person>

Person newJoe = (Person)xstream.fromXML(xml);

像这样的物体：

public class Person {
  private String firstname;
  private String lastname;
  private PhoneNumber phone;
  private PhoneNumber fax;
  // ... constructors and methods
  private void calculate()
  {
  }
}

XStream xstream = new XStream(new DomDriver()); 

Person joe = new Person("Joe", "Walnes");
joe.setPhone(new PhoneNumber(123, "1234-456"));
joe.setFax(new PhoneNumber(123, "9999-999"));

String xml = xstream.toXML(joe);

<person>
  <firstname>Joe</firstname>
  <lastname>Walnes</lastname>
  <phone>
    <code>123</code>
    <number>1234-456</number>
  </phone>
  <fax>
    <code>123</code>
    <number>9999-999</number>
  </fax>
</person>

Person newJoe = (Person)xstream.fromXML(xml);

生成的XML如下所示：

public class Person {
  private String firstname;
  private String lastname;
  private PhoneNumber phone;
  private PhoneNumber fax;
  // ... constructors and methods
  private void calculate()
  {
  }
}

XStream xstream = new XStream(new DomDriver()); 

Person joe = new Person("Joe", "Walnes");
joe.setPhone(new PhoneNumber(123, "1234-456"));
joe.setFax(new PhoneNumber(123, "9999-999"));

String xml = xstream.toXML(joe);

<person>
  <firstname>Joe</firstname>
  <lastname>Walnes</lastname>
  <phone>
    <code>123</code>
    <number>1234-456</number>
  </phone>
  <fax>
    <code>123</code>
    <number>9999-999</number>
  </fax>
</person>

Person newJoe = (Person)xstream.fromXML(xml);

从XML反序列化对象如下所示：

public class Person {
  private String firstname;
  private String lastname;
  private PhoneNumber phone;
  private PhoneNumber fax;
  // ... constructors and methods
  private void calculate()
  {
  }
}

XStream xstream = new XStream(new DomDriver()); 

Person joe = new Person("Joe", "Walnes");
joe.setPhone(new PhoneNumber(123, "1234-456"));
joe.setFax(new PhoneNumber(123, "9999-999"));

String xml = xstream.toXML(joe);

<person>
  <firstname>Joe</firstname>
  <lastname>Walnes</lastname>
  <phone>
    <code>123</code>
    <number>1234-456</number>
  </phone>
  <fax>
    <code>123</code>
    <number>9999-999</number>
  </fax>
</person>

Person newJoe = (Person)xstream.fromXML(xml);

在对此人进行反序列化之后，是否可以执行newJoe.calculate（）方法

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person类中数字的值是否可以更改为另一个值，如newJoe.number=4545

是的，您可以调用方法并更改值。它与任何其他实例一样，不同之处在于它从XML文件获取值，而不是显式地将它们传递给构造函数

该对象将存在于反序列化它的VM中。如果你想在网络上完成这项工作，你需要使用类似RMI的东西在网络上传递对象。

是的

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我很荣幸能在这个例子中被引用。

你的问题是什么？在客户端反序列化它之后，使用这个反序列化对象（比如我们的例子中的newJoe）我们能执行Person类（位于服务器中）中的newJoe.calculate（）方法吗？非常感谢…will newJoe.calculate（）在客户端JVM或服务器端JVM中执行？如果在客户端上反序列化XML，那么它将在客户端中执行。如果在服务器上反序列化XML，那么它将在服务器上执行。