无法使用 Jackson 解析 XML，模型永远不会被填充

Question

我正在尝试使用 Jackson 库解析波纹管 xml 但没有成功。我对我的模型进行了一些尝试，但没有发现问题...

XML:

<?xml version="1.0" encoding="UTF-8"?>
<litre version="1.1" creator="Dummy Creator"  
    xsi:schemaLocation="http://www.dummy.com/xmlschemas/DummyExtension.xsd>
    <metadata>
        <link href="dummy.com">
            <text>Dummy</text>
        </link>
        <time>2012-10-24T23:22:51.000Z</time>
    </metadata>
    <krt>
        <name>Untitled</name>
        <geskrt>
            <pkrt data1="123" data2="321">
                <ints>100</ints>
                <time>2012-10-24T22:21:15.000Z</time>
                <extensions>
                    <axtpx:DummyExtension>
                        <xtpx:hor>40000</xtpx:hor>
                    </axtpx:DummyExtension>
                </extensions>
            </pkrt>
            <pkrt data1="543" data2="345">
                <ints>100</ints>
                <time>2012-10-24T23:29:40.000Z</time>
                <extensions>
                    <axtpx:DummyExtension>
                        <xtpx:hor>50000</xtpx:hor>
                    </axtpx:DummyExtension>
                </extensions>
            </pkrt>
        </geskrt>
    </krt>
</litre>

POJO:

@JacksonXmlRootElement(localName = "litre")
public @Data class Model {

    @JacksonXmlProperty(localName = "pkrt")
    @JacksonXmlElementWrapper(useWrapping = false)
    private List<Data> entries;

    public static @Data class Data {
        @JacksonXmlProperty(isAttribute = true, localName = "data1")
        private double dataOne;
        @JacksonXmlProperty(isAttribute = true, localName = "data2")
        private double dataTwo;
        @JacksonXmlProperty(localName = "ints")
        private double inters;
        private String time;
        @JacksonXmlProperty(namespace = "xtpx:hor")
        private long hours;
    }
}

尝试反序列化时：

Model model = mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
                    .readValue(filePath.toFile(), Model.class);

解析始终无一例外地通过，但条目列表始终为空...

感谢任何帮助，thanx！

Answer 1

你肯定必须做这样的事情：

@JacksonXmlRootElement(localName = "litre")
public @Data class Litre {

    @JacksonXmlProperty(localName = "krt")
    private Krt krt;

    public static @Data class Krt {

        @JacksonXmlProperty(localName = "geskrt")
        private Geskrt geskrt;
    }

    public static @Data class Geskrt {

        @JacksonXmlProperty(localName = "pkrt")
        @JacksonXmlElementWrapper(useWrapping = false)
        private List<Pkrt> pkrt;
    }

    public static @Data class Pkrt {

        @JacksonXmlProperty(isAttribute = true, localName = "data1")
        private double dataOne;

        @JacksonXmlProperty(isAttribute = true, localName = "data2")
        private double dataTwo;

        @JacksonXmlProperty(localName = "ints")
        private double inters;

        private String time;

        @JacksonXmlProperty(namespace = "xtpx:hor")
        private long hours;
    }
}

无法使用 Jackson 解析 XML，模型永远不会被填充

Cannot parse XML using Jackson, model never gets populated

java

jackson

jackson-dataformat-xml