xml 與 javaBean 互換

   在工作中經常遇到到另外一個服務器讀取數據，其中一種最常用的方法，就是用xml進行數據傳遞，比如A服務器到B服務器得到對應的xml格式的數據，A得到之後進行解析。一般這種解析分爲DOM解析和SAX解析。這裏不是探討DOM與SAX解析的區別和優點，只是介紹一個小框架，實現JAVABean和XML的轉換，傻瓜式的轉換。---------------------------XStream

    其官方網站是http://xstream.codehaus.org/

 

JAVAbEAN---->XML

咱們首先得一個對象,比如這個對象是Person

public class Persone { private String firstName; private String lastName; private PhoneNumber phone; private PhoneNumber fax; public Persone(String firstName, String lastName) { super(); this.firstName = firstName; this.lastName = lastName; } public Persone() { super(); } 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; } public PhoneNumber getPhone() { return phone; } public void setPhone(PhoneNumber phone) { this.phone = phone; } public PhoneNumber getFax() { return fax; } public void setFax(PhoneNumber fax) { this.fax = fax; } }

對象PhoneNumber

public class PhoneNumber { private int code; private String number; public int getCode() { return code; } public void setCode(int code) { this.code = code; } public String getNumber() { return number; } public void setNumber(String number) { this.number = number; } public PhoneNumber(int code, String number) { super(); this.code = code; this.number = number; } public PhoneNumber() { super(); } }

 

  XStream xstream = new XStream(new DomDriver()); //初使化XStream
  xstream.alias("person", Persone.class);//對Persone.class名一個別名
  xstream.alias("phonenumber", PhoneNumber.class);
    
  
  Persone joe = new Persone("Joe", "Walnes");
  joe.setPhone(new PhoneNumber(123, "1234-456"));
  joe.setFax(new PhoneNumber(123, "9999-999"));
  String xml = xstream.toXML(joe);//得到xml

   就是這麼簡單得得到xml 如下:

  <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>

-------------------------------------xml---->object

如果想通過xml構造Person  也很簡單

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