我们用XMLEncoder和XMLDecoder来序列化和反序列化一个类。
我觉得需要注意的是，我们在new一个对象的时候，XMLEncoder本身默认的是类中无参的构造函数，我今儿在实现的时候，老是报出exception,原来是我用有参的构造函数new了对象，改成set方法设置值，就ok了。
需要序列化的类：
package com.test.Bean;
import java.io.Serializable;
public class Customer implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
private String name;
private int age;
public Customer(){
}
public Customer(String name, int age){
this.name = name;
this.age = age;
}
public String toString(){
return "name=" + name + ", age=" + age;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
XMLEncoder和XMLDecoder的工具类：
package com.test.Serializable; import java.beans.XMLDecoder;
import java.beans.XMLEncoder;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.UnsupportedEncodingException; public class BeanXML { public static String encodeBean(Object bean){
ByteArrayOutputStream out = new ByteArrayOutputStream();
XMLEncoder encoder = new XMLEncoder(out);
encoder.writeObject(bean);
encoder.close();
return out.toString();
} public static Object decodeBean(String xml){
XMLDecoder decoder;
try {
decoder = new XMLDecoder(new ByteArrayInputStream(xml.getBytes("GBK")));
return decoder.readObject();
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} return null;
} }
测试类：
package com.test.Serializable;
import com.citi.test.Bean.Customer; public class TestBeanXML { public static void main(String[] args){
Customer customer = new Customer();
customer.setName("Ruth");
customer.setAge(10);
BeanXML testBeanXml = new BeanXML();
testBeanXml.encodeBean(customer);
//testBeanXml.decodeBean("ruth.xml");
System.out.print(testBeanXml.encodeBean(customer)); // testBeanXml.decodeBean(testBeanXml.encodeBean(customer));
// System.out.println(testBeanXml.decodeBean(testBeanXml.encodeBean(customer)).getClass()); Customer cust = (Customer) testBeanXml.decodeBean(testBeanXml.encodeBean(customer));
System.out.print(cust.getName()+cust.getAge());
} }
测试结果：