XStream转换器： 处理xml节点中既有属性又有值

1.需处理的数据：

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

2.处理xml节点中既有属性又有值，有两种方式

使用Xstram自带的转换器

自定义的转换器

3.示例：

3.1.JavaBean实体

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:

* @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: 

* @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;

}

}

3.3.输出结果：

【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'}