XStream转换器： 处理xml节点中既有属性又有值

1.需处理的数据：

1. <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

1. 使用Xstram自带的转换器
3. 自定义的转换器

3.示例：

3.1.JavaBean实体

1. package com.newcapec.dao.domain;
3. import com.thoughtworks.xstream.XStream;
4. import com.thoughtworks.xstream.annotations.XStreamAlias;
5. import com.thoughtworks.xstream.annotations.XStreamAsAttribute;
6. import com.thoughtworks.xstream.annotations.XStreamConverter;
8. /**
9. * @version V1.0
10. * @Title: JavaBean实体
11. * @ClassName: com.newcapec.dao.domain.enums
12. * @Description:
13. * @Copyright2016-2017  - Powered By 研发中心
14. * @author: 王延飞
15. * @date:2017/12/278:05
16. */
17. @XStreamAlias("orderInfo")
18. // 自带的转换器
19. //@XStreamConverter(value=ToAttributedValueConverter.class, strings={"orderNumber"})
20. // 自定义的转换器
21. @XStreamConverter(OrderConverter.class)
22. publicclassOrder {
24.    @XStreamAsAttribute
25.    private String orderName;
26.    @XStreamAsAttribute
27.    private String orderType;
28.    @XStreamAsAttribute
29.    private String orderPrice;
30. //    @XStreamOmitField
31.    private String orderNumber;
33.    publicOrder() {
34.    }
36.    publicOrder(String orderName, String orderType, String orderPrice, String orderNumber) {
37.        this.orderName = orderName;
38.        this.orderType = orderType;
39.        this.orderPrice = orderPrice;
40.        this.orderNumber = orderNumber;
41.    }
43.    public String getOrderName() {
44.        return orderName;
45.    }
47.    publicvoidsetOrderName(String orderName) {
48.        this.orderName = orderName;
49.    }
51.    public String getOrderType() {
52.        return orderType;
53.    }
55.    publicvoidsetOrderType(String orderType) {
56.        this.orderType = orderType;
57.    }
59.    public String getOrderPrice() {
60.        return orderPrice;
61.    }
63.    publicvoidsetOrderPrice(String orderPrice) {
64.        this.orderPrice = orderPrice;
65.    }
67.    public String getOrderNumber() {
68.        return orderNumber;
69.    }
71.    publicvoidsetOrderNumber(String orderNumber) {
72.        this.orderNumber = orderNumber;
73.    }
75.    @Override
76.    public String toString() {
77.        return"Order{" +
78.                "orderName='" + orderName + '\'' +
79.                ", orderType='" + orderType + '\'' +
80.                ", orderPrice='" + orderPrice + '\'' +
81.                ", orderNumber='" + orderNumber + '\'' +
82.                '}';
83.    }
86.    publicstaticvoidmain(String[] args) {
87.        Orderorder=newOrder("酸奶", "奶制品", "5.00", "2");
89.        XStreamxStream=newXStream();
90.        xStream.autodetectAnnotations(true);//自动检测注解
91.        xStream.processAnnotations(Order.class);//应用Person类的注解
92.        StringtoXML= xStream.toXML(order);
93.        // 序列化
94.        System.out.println("【序列化】："+toXML);
96.        // 反序列化
97.        ObjectfromXML= xStream.fromXML("【反序列化】："+toXML);
98.        System.out.println(fromXML);
100.    }
101. }

3.2.自定义转换器：

1. package com.newcapec.dao.domain;
3. import com.thoughtworks.xstream.converters.Converter;
4. import com.thoughtworks.xstream.converters.MarshallingContext;
5. import com.thoughtworks.xstream.converters.UnmarshallingContext;
6. import com.thoughtworks.xstream.io.HierarchicalStreamReader;
7. import com.thoughtworks.xstream.io.HierarchicalStreamWriter;
9. /**
10. * @version V1.0
11. * @Title:
12. * @ClassName: com.newcapec.dao.domain
13. * @Description: 自定义转换器
14. * @Copyright2016-2017  - Powered By 研发中心
15. * @author: 王延飞
16. * @date:2017/12/278:42
17. */
18. publicclassOrderConverterimplementsConverter {
20.    //转换条件
21.    @Override
22.    publicbooleancanConvert(Class type) {
23.        return type.equals(Order.class);
24.    }
26.    /**
27.     * 将java对象转为xml时使用
28.     */
29.    @Override
30.    publicvoidmarshal(Object source, HierarchicalStreamWriter writer, MarshallingContext context) {
31.        Orderorder= (Order) source;
32.        writer.addAttribute("orderName", order.getOrderName());
33.        writer.addAttribute("orderType", order.getOrderType());
34.        writer.addAttribute("orderPrice", order.getOrderPrice());
35.        writer.setValue(order.getOrderNumber());
36.    }
38.    /**
39.     * 将xml转为java对象使用
40.     */
41.    @Override
42.    public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) {
43.        // 在解析order元素时，先创建一个Order对象
44.        Orderorder=newOrder();
45.        // 将order元素的name属性设置为Order对象的name属性值
46.        order.setOrderName(reader.getAttribute("orderName"));
47.        order.setOrderType(reader.getAttribute("orderType"));
48.        order.setOrderPrice(reader.getAttribute("orderPrice"));
49.        // 将order元素的txt值设置为Order对象的value值
50.        order.setOrderNumber(reader.getValue());
51.        return order;
52.    }
53. }

3.3.输出结果：

1. 【序列化】：<orderInfo orderName="酸奶" orderType="奶制品" orderPrice="5.00">2</orderInfo>
2. 
   
3. 【反序列化】：Order{orderName='酸奶', orderType='奶制品', orderPrice='5.00', orderNumber='2'}