<orderInfo orderName="酸奶" orderType="奶制品" orderPrice="5.00">2</orderInfo>

使用Xstram自带的转换器
自定义的转换器

package com.newcapec.dao.domain;
import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.annotations.XStreamAlias;
import com.thoughtworks.xstream.annotations.XStreamAsAttribute;
import com.thoughtworks.xstream.annotations.XStreamConverter;
/**
 * @version V1.0
 * @Title: JavaBean实体
 * @ClassName: com.newcapec.dao.domain.enums
 * @Description:
 * @Copyright 2016-2017  - Powered By 研发中心
 * @author: 王延飞
 * @date:2017/12/27 8:05
 */
@XStreamAlias("orderInfo")
// 自带的转换器
//@XStreamConverter(value=ToAttributedValueConverter.class, strings={"orderNumber"})
// 自定义的转换器
@XStreamConverter(OrderConverter.class)
public class Order {
    @XStreamAsAttribute
    private String orderName;
    @XStreamAsAttribute
    private String orderType;
    @XStreamAsAttribute
    private String orderPrice;
//    @XStreamOmitField
    private String orderNumber;
    public Order() {
    }
    public Order(String orderName, String orderType, String orderPrice, String orderNumber) {
        this.orderName = orderName;
        this.orderType = orderType;
        this.orderPrice = orderPrice;
        this.orderNumber = orderNumber;
    }
    public String getOrderName() {
        return orderName;
    }
    public void setOrderName(String orderName) {
        this.orderName = orderName;
    }
    public String getOrderType() {
        return orderType;
    }
    public void setOrderType(String orderType) {
        this.orderType = orderType;
    }
    public String getOrderPrice() {
        return orderPrice;
    }
    public void setOrderPrice(String orderPrice) {
        this.orderPrice = orderPrice;
    }
    public String getOrderNumber() {
        return orderNumber;
    }
    public void setOrderNumber(String orderNumber) {
        this.orderNumber = orderNumber;
    }
    @Override
    public String toString() {
        return "Order{" +
                "orderName='" + orderName + '\'' +
                ", orderType='" + orderType + '\'' +
                ", orderPrice='" + orderPrice + '\'' +
                ", orderNumber='" + orderNumber + '\'' +
                '}';
    }
    public static void main(String[] args) {
        Order order = new Order("酸奶", "奶制品", "5.00", "2");
        XStream xStream = new XStream();
        xStream.autodetectAnnotations(true);//自动检测注解
        xStream.processAnnotations(Order.class);//应用Person类的注解
        String toXML = xStream.toXML(order);
        // 序列化
        System.out.println("【序列化】："+toXML);
        // 反序列化
        Object fromXML = xStream.fromXML("【反序列化】："+toXML);
        System.out.println(fromXML);
    }
}

3.2.自定义转换器：

package com.newcapec.dao.domain;
import com.thoughtworks.xstream.converters.Converter;
import com.thoughtworks.xstream.converters.MarshallingContext;
import com.thoughtworks.xstream.converters.UnmarshallingContext;
import com.thoughtworks.xstream.io.HierarchicalStreamReader;
import com.thoughtworks.xstream.io.HierarchicalStreamWriter;
/**
 * @version V1.0
 * @Title:
 * @ClassName: com.newcapec.dao.domain
 * @Description: 自定义转换器
 * @Copyright 2016-2017  - Powered By 研发中心
 * @author: 王延飞
 * @date:2017/12/27 8:42
 */
public class OrderConverter implements Converter {
    //转换条件
    @Override
    public boolean canConvert(Class type) {
        return type.equals(Order.class);
    }
    /**
     * 将java对象转为xml时使用
     */
    @Override
    public void marshal(Object source, HierarchicalStreamWriter writer, MarshallingContext context) {
        Order order = (Order) source;
        writer.addAttribute("orderName", order.getOrderName());
        writer.addAttribute("orderType", order.getOrderType());
        writer.addAttribute("orderPrice", order.getOrderPrice());
        writer.setValue(order.getOrderNumber());
    }
    /**
     * 将xml转为java对象使用
     */
    @Override
    public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) {
        // 在解析order元素时，先创建一个Order对象
        Order order = new Order();
        // 将order元素的name属性设置为Order对象的name属性值
        order.setOrderName(reader.getAttribute("orderName"));
        order.setOrderType(reader.getAttribute("orderType"));
        order.setOrderPrice(reader.getAttribute("orderPrice"));
        // 将order元素的txt值设置为Order对象的value值
        order.setOrderNumber(reader.getValue());
        return order;
    }
}

【序列化】：<orderInfo orderName="酸奶" orderType="奶制品" orderPrice="5.00">2</orderInfo>

【反序列化】：Order{orderName='酸奶', orderType='奶制品', orderPrice='5.00', orderNumber='2'}