Question

我希望控制JAXB在编组XML时生成xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"声明的位置。我已经看到像this这样的解决方案使用JAXB_SCHEMA_LOCATION属性将其添加到根元素，但是我不希望它在根节点上，我希望它介于两者之间。这就是我所拥有的：

@XmlRootElement(name = "RootNode")
@XmlAccessorType(XmlAccessType.NONE)
public class RootNode {
    @XmlElement(name = "IntermediateNode")
    private IntermediateNode intermediateNode;

    //getter & setter
}

@XmlAccessorType(XmlAccessType.NONE)
public class IntermediateNode {
    @XmlElement(name = "MyEntity")
    private MyEntity myEntity;

    //getter and setter
}

@XmlAccessorType(XmlAccessType.NONE)
public class MyEntity {
    @XmlElement(name = "Name")
    private String name;

    @XmlElement(name = "Title", nillable = true)
    private String title;

    //getters and setters
}

序列化如：

MyEntity myEntity = new MyEntity();
myEntity.setName("George");
myEntity.setTitle(null);

IntermediateNode intNode = new IntermediateNode();
intNode.setMyEntity(myEntity);

RootNode rootNode = new RootNode();
rootNode.setIntermediateNode(intNode);

JAXBContext context = JAXBContext.newInstance(RootNode.class);
Marshaller marshaller = context.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
marshaller.marshal(rootNode, System.out);

生成XML，如：

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<RootNode>
    <IntermediateNode>
        <MyEntity>
            <Name>George</Name>
            <Title xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true"/>
        </MyEntity>
    </IntermediateNode>
</RootNode>

但我想要的是：

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<RootNode>
    <IntermediateNode xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
        <MyEntity>
            <Name>George</Name>
            <Title xsi:nil="true"/>
        </MyEntity>
    </IntermediateNode>
</RootNode>

我甚至尝试使用像这样的package-info.java将我的IntermediateNode和MyEntity类移动到他们自己的包中，但这只是将xmlns：xsi滚动到根元素。

@javax.xml.bind.annotation.XmlSchema(
  xmlns = {
    @javax.xml.bind.annotation.XmlNs(prefix = "xsi", namespaceURI = "http://www.w3.org/2001/XMLSchema-instance")
  },
  elementFormDefault = javax.xml.bind.annotation.XmlNsForm.QUALIFIED)

package com.example.intermediate;

有可能得到我想要的东西吗？

JAXB在嵌套节点中生成xmlns：xsi声明

0 个答案: