一、XStream

XStream 的github地址：

https://github.com/x-stream/xstream

XStream 的文档地址：

http://x-stream.github.io/index.html

二、基本使用示例

XStreamDemo.java

import java.util.ArrayList;import java.util.List;import com.thoughtworks.xstream.XStream;import com.thoughtworks.xstream.io.naming.NoNameCoder;import com.thoughtworks.xstream.io.xml.XppDriver;/** * XStream基本使用示例 * * @author Kevin * @version V1.0.0 * @date 2016-4-1 */public class XStreamDemo {    public static void main(String[] args) {        XStream xstream = new XStream(new XppDriver(new NoNameCoder()));        //指定所有class均解析annotations        xstream.autodetectAnnotations(true);        People people = new People();        people.setId(1L);        people.setName("Kevin");        people.setCompanyName("暂时不告诉你");        people.setCity(new City("杭州"));        List
    
      productList = new ArrayList
     
      ();        productList.add(new ElectronicProduct("MacBook Pro"));        productList.add(new ElectronicProduct("iPhone 5S"));        productList.add(new ElectronicProduct("iPad Air 2"));        people.setElectronicProductList(productList);        // Serializing an object to XML        String peopleXML = xstream.toXML(people);        System.out.println("peopleXML is : \n" + peopleXML);        //peopleXML的内容为：       /*       
                
       
        1
                 
       
        Kevin
                 
       
        暂时不告诉你
                 
                   
        
         杭州
                  
                 
                   
                      
         
          MacBook Pro
                     
                    
                      
         
          iPhone 5S
                     
                    
                      
         
          iPad Air 2
                     
                  
               
              */        // Deserializing an object back from XML        People newpeople = (People) xstream.fromXML(peopleXML);        System.out.println("city name is : " + newpeople.getCity().getName());    }}
     
    

People.java

import java.util.List;import com.thoughtworks.xstream.annotations.XStreamAlias;/** * 城市里的人 * * @author Kevin * @version V1.0.0 * @date 2016-4-1 */@XStreamAlias("People")public class People {    // ID    private Long id;    // 姓名    private String name;    // 所在公司名称    @XStreamAlias("company_name")    private String companyName;    // 所在城市    @XStreamAlias("City")    private City city;    // 拥有的电子产品    @XStreamAlias("ElectronicProducts")    private List
    
      electronicProductList;    public Long getId() {        return id;    }    public void setId(Long id) {        this.id = id;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getCompanyName() {        return companyName;    }    public void setCompanyName(String companyName) {        this.companyName = companyName;    }    public City getCity() {        return city;    }    public void setCity(City city) {        this.city = city;    }    public List
     
       getElectronicProductList() {        return electronicProductList;    }    public void setElectronicProductList(List
      
        electronicProductList) {        this.electronicProductList = electronicProductList;    }}
      
     
    

City.java

import com.thoughtworks.xstream.annotations.XStreamAlias;/** * 城市类 * * @author Kevin * @version V1.0.0 * @date 2016-4-1 */@XStreamAlias("City")public class City {    // 名称    private String name;    public City(String name) {        this.name = name;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }}

ElectronicProduct.java

import com.thoughtworks.xstream.annotations.XStreamAlias;/** * 电子产品 * * @author Kevin * @version V1.0.0 * @date 2016-4-1 */@XStreamAlias("ElectronicProduct")public class ElectronicProduct {    // 名称    private String name;    public ElectronicProduct(String name) {        this.name = name;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }}

三、使用心得

个人认为XStream不适合用于解析第三方的xml。

第三方xml如果有变动，只要增加一个节点属性，使用XStream解析时就会报错，而且非常难找错误。fastjson的设计就比XStream设计的的要合理，没有的字段不解析出来就可以了，何必导致整个解析报错！

解决方案：

1. 重写XStream的ReflectionConverter转换器，忽略没有找到的属性域（推荐使用）。
2. 自己再造轮子。