XStream：带属性的节点和XStream 1.3.1中的文本节点？

Question

我想用XStream将一个对象序列化为这种形式的XML。

<node att="value">text</node>

在StackOverflow中已经有一个解决方案：XStream：node with attributes and text node？但它对我不起作用,因为我只能使用XStream1.3.1。

@XStreamConverter(value=ToAttributedValueConverter.class, strings={"content"}) 

Answer 1

通过一些黑客是有可能的。主要的idia是使用1.4.7中修改的ToAttributedValueConverter。

>

将ToAttributedValueConverter复制到包中

将UseAttributeForenumMapper复制到包中

将替换为ToAttributedValueConverter#Fieldisequal如下所示：

private boolean fieldIsEqual(FastField field) {
    return valueField.getName().equals(field.getName())
            && valueField.getDeclaringClass().getName()
                    .equals(field.getDeclaringClass().getName());
}

替换UseAttributeForenumMapper中的构造函数，如下所示：

public UseAttributeForEnumMapper(Mapper wrapped) {
    super(wrapped, null);
}

    @XStreamAlias("node")
    public class Node {
        private String attr;
        private String content;

        public void setAttr(String attr) { this.attr = attr; }
        public String getAttr() { return attr; }
        public void setContent(String content) { this.content = content; }
        public String getContent() { return content; }
    }

    public static void main(String[] args) {
        final Node node = new Node();
        node.setAttr("value");
        node.setContent("text");

        final XStream xstream = new XStream();
        configureXStream(xstream);

        final String xml = xstream.toXML(node);
        System.out.println(xml);

        final Node node2 = (Node) xstream.fromXML(xml);
        System.out.println("attr: " + node2.getAttr());
        System.out.println("content: " + node2.getContent());
    }

    private static void configureXStream(final XStream xstream) {
        xstream.autodetectAnnotations(true);
        final Mapper mapper = xstream.getMapper();
        final ReflectionProvider reflectionProvider = xstream
                .getReflectionProvider();
        final ConverterLookup lookup = xstream.getConverterLookup();
        final Converter converter = new ToAttributedValueConverter(Node.class,
                mapper, reflectionProvider, lookup, "content");
        xstream.registerConverter(converter);
    }

此程序打印出：

    <node attr="value">text</node>
    attr: value
    content: text