Java 向JAXB元素添加属性
我正在努力进行一些JAXB解析,需要一些指导 本质上,我正在尝试向我的类变量添加属性,我已经使用@XmlElement声明为元素。到目前为止,任何使用@XmlAttribute的尝试都会在类级别设置该属性 我现在得到的是:Java 向JAXB元素添加属性,java,xml,jaxb,Java,Xml,Jaxb,我正在努力进行一些JAXB解析,需要一些指导 本质上,我正在尝试向我的类变量添加属性,我已经使用@XmlElement声明为元素。到目前为止,任何使用@XmlAttribute的尝试都会在类级别设置该属性 我现在得到的是: <DataClass newAttribute="test"> <myElement>I wish this element had an attribute</myElement> <anotherElement>I
<DataClass newAttribute="test">
<myElement>I wish this element had an attribute</myElement>
<anotherElement>I wish this element had an attribute too</anotherElement>
</DataClass>
我希望这个元素有一个属性
我希望这个元素也有属性
我想这样做:
<DataClass>
<myElement thisAtt="this is what I'm talking about">This is better</myElement>
<anotherElement thisAtt="a different attribute here">So is this</anotherElement>
</DataClass>
这样更好
这也是
我见过其他帖子使用@XmlValue为单个元素添加属性,但当您有元素时,这不起作用,并且在多个元素上也不起作用
有人想过如何实现这一点吗
谢谢!
Jason这将创建该XML:
public class JaxbAttributes {
public static void main(String[] args) throws Exception {
Marshaller marshaller =
JAXBContext.newInstance(DataClass.class).createMarshaller();
StringWriter stringWriter = new StringWriter();
DataClass dataClass = new DataClass(
new Foo("this is what I'm talking about", "This is better"),
new Foo("a different attribute here", "So is this"));
marshaller.marshal(dataClass, stringWriter);
System.out.println(stringWriter);
}
@XmlRootElement(name = "DataClass")
@XmlType(propOrder = {"myElement", "anotherElement"})
static class DataClass {
private Foo myElement;
private Foo anotherElement;
DataClass() {}
public DataClass(Foo myElement, Foo anotherElement) {
this.myElement = myElement;
this.anotherElement = anotherElement;
}
public Foo getMyElement() { return myElement; }
public void setMyElement(Foo myElement) { this.myElement = myElement; }
public Foo getAnotherElement() { return anotherElement; }
public void setAnotherElement(Foo anotherElement) { this.anotherElement = anotherElement; }
}
static class Foo {
private String thisAtt;
private String value;
Foo() {}
public Foo(String thisAtt, String value) {
this.thisAtt = thisAtt;
this.value = value;
}
@XmlAttribute
public String getThisAtt() { return thisAtt; }
public void setThisAtt(String thisAtt) { this.thisAtt = thisAtt; }
@XmlValue
public String getValue() { return value; }
public void setValue(String value) { this.value = value; }
}
}
注意:我是负责人,也是JAXB2.X()专家组的成员 或者,您可以使用MOXy中的
@XmlPath
扩展来处理此用例:
数据类
@XmlPath
注释可与标准JAXB注释一起使用:
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlType;
import org.eclipse.persistence.oxm.annotations.XmlPath;
@XmlRootElement(name="DataClass")
@XmlType(propOrder={"myElement", "anotherElement"})
public class DataClass {
private String myElement;
private String myElementThisAtt;
private String anotherElement;
private String anotherElementThisAtt;
public String getMyElement() {
return myElement;
}
public void setMyElement(String myElement) {
this.myElement = myElement;
}
@XmlPath("myElement/@thisAtt")
public String getMyElementThisAtt() {
return myElementThisAtt;
}
public void setMyElementThisAtt(String myElementThisAtt) {
this.myElementThisAtt = myElementThisAtt;
}
public String getAnotherElement() {
return anotherElement;
}
public void setAnotherElement(String anotherElement) {
this.anotherElement = anotherElement;
}
@XmlPath("anotherElement/@thisAtt")
public String getAnotherElementThisAtt() {
return anotherElementThisAtt;
}
public void setAnotherElementThisAtt(String anotherElementThisAtt) {
this.anotherElementThisAtt = anotherElementThisAtt;
}
}
演示
import javax.xml.bind.JAXBContext;
import javax.xml.bind.Marshaller;
public class Demo {
public static void main(String[] args) throws Exception {
JAXBContext jc = JAXBContext.newInstance(DataClass.class);
DataClass dataClass = new DataClass();
dataClass.setMyElement("This is better");
dataClass.setMyElementThisAtt("this is what I'm talking about");
dataClass.setAnotherElement("So is this");
dataClass.setAnotherElementThisAtt("a different attribute here");
Marshaller marshaller = jc.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
marshaller.marshal(dataClass, System.out);
}
}
输出
<?xml version="1.0" encoding="UTF-8"?>
<DataClass>
<myElement thisAtt="this is what I'm talking about">This is better</myElement>
<anotherElement thisAtt="a different attribute here">So is this</anotherElement>
</DataClass>
这样更好
您需要发布相关的Java代码,以便我们了解实际情况。我的foo欠了您的债。非常感谢。我没有想过以这种方式使用它,它是基本的OO,但出于某种原因,我没有看到它。再次感谢您。