Java 使用超类XMLRootElement名称值的JAXB注释子类

我使用的是JAXB2.1，我对看到的XML输出感到困惑。下面我有两个子类，它们扩展了同一个父类。当在浏览器中使用REST进行编组并作为XML查看时，子类1（GeoLocationDecodedPayload）始终按预期具有GeoLocationDecodedPayload的根元素。由于某些原因，子类2（AltitudeDecodedPayload）没有将AltitudeDecodedPayload作为其根元素，这是在其@XMLRootElement注释中指定的意外情况。XML输出显示GeoPayload的超类（GeoPayload）@XMLRootElement。你知道为什么这两类人的行为不同吗

子类1:

package com.api.model.vo.decoder;

import java.io.Serializable;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlRootElement;
import com.api.util.decoder.DecoderConstants;

@XmlAccessorType(XmlAccessType.FIELD)
@XmlRootElement(name = "geoLocationDecodedPayload")
public class GeoLocationDecodedPayload extends GeoPayload implements Serializable {

   public GeoLocationDecodedPayload() {}

}

package com.api.model.vo.decoder;

import java.io.Serializable;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlRootElement;
import com.api.util.decoder.DecoderConstants;

@XmlAccessorType(XmlAccessType.FIELD)
@XmlRootElement(name = "altitudeDecodedPayload")
public class AltitudeDecodedPayload extends GeoPayload implements Serializable {

    public AltitudeDecodedPayload() {}

}

package com.api.model.vo.decoder;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlRootElement;

@XmlAccessorType(XmlAccessType.FIELD)
@XmlRootElement(name = "geoPayload")
public class GeoPayload {

    public GeoPayload() {}
}

第二级儿童：

package com.api.model.vo.decoder;

import java.io.Serializable;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlRootElement;
import com.api.util.decoder.DecoderConstants;

@XmlAccessorType(XmlAccessType.FIELD)
@XmlRootElement(name = "geoLocationDecodedPayload")
public class GeoLocationDecodedPayload extends GeoPayload implements Serializable {

   public GeoLocationDecodedPayload() {}

}

package com.api.model.vo.decoder;

import java.io.Serializable;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlRootElement;
import com.api.util.decoder.DecoderConstants;

@XmlAccessorType(XmlAccessType.FIELD)
@XmlRootElement(name = "altitudeDecodedPayload")
public class AltitudeDecodedPayload extends GeoPayload implements Serializable {

    public AltitudeDecodedPayload() {}

}

package com.api.model.vo.decoder;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlRootElement;

@XmlAccessorType(XmlAccessType.FIELD)
@XmlRootElement(name = "geoPayload")
public class GeoPayload {

    public GeoPayload() {}
}

父类：

package com.api.model.vo.decoder;

import java.io.Serializable;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlRootElement;
import com.api.util.decoder.DecoderConstants;

@XmlAccessorType(XmlAccessType.FIELD)
@XmlRootElement(name = "geoLocationDecodedPayload")
public class GeoLocationDecodedPayload extends GeoPayload implements Serializable {

   public GeoLocationDecodedPayload() {}

}

package com.api.model.vo.decoder;

import java.io.Serializable;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlRootElement;
import com.api.util.decoder.DecoderConstants;

@XmlAccessorType(XmlAccessType.FIELD)
@XmlRootElement(name = "altitudeDecodedPayload")
public class AltitudeDecodedPayload extends GeoPayload implements Serializable {

    public AltitudeDecodedPayload() {}

}

package com.api.model.vo.decoder;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlRootElement;

@XmlAccessorType(XmlAccessType.FIELD)
@XmlRootElement(name = "geoPayload")
public class GeoPayload {

    public GeoPayload() {}
}

---

我忘了在下面的列表中包含AltitudeCodedPayLoad.class。这解决了我的问题

@XmlAccessorType(XmlAccessType.FIELD)
@XmlRootElement(name="payloadResponse")
public class PayloadResponse extends AbstractResponse{
    @XmlElementWrapper(name="decodedPayloads")
    @XmlElementRefs({
        @XmlElementRef(type=GeoPayload.class),
        @XmlElementRef(type=GeoLocationDecodedPayload .class),
        @XmlElementRef(type=AltitudeDecodedPayload .class) 

---

很抱歉，答案不是使用正确的父类和子类名称 这就是为什么我不明白解决办法