Jaxb：非法注解异常

Question

我收到以下异常“1 计数 IllegalAnnotationExceptions”

代码：

Image image = new Image("url");
StringWriter sw = new StringWriter();
JAXBContext jaxbContext = JAXBContext.newInstance(Image.class);
Marshaller jaxbMarshaller = jaxbContext.createMarshaller();
jaxbMarshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
jaxbMarshaller.marshal(image, sw);

Class:

@XmlRootElement(name="ProductImage")
public class Image {

    private String url;

    public Image( String url) {   
        this.url = url;
    }

    @XmlElement(name = "ImageLocation")
    public String getUrl() {
        return this.url;
    }
}

我尝试在字段上设置 @XmlElement 注释并在 class 上设置 AccessorType 字段。但我遇到了同样的异常。

我缺少默认构造函数。 public 图片 () { }

Answer 1

使用这个Class..

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

@XmlRootElement(name="ProductImage")
@XmlAccessorType(XmlAccessType.PROPERTY)
@XmlType(name = "ProductImage", propOrder = {
    "url"
})
public class Image {

    public Image(){}

    private String url;

    public Image( String url) {   
        this.url = url;
    }

    @XmlElement(name = "ImageLocation")
    public String getUrl() {
        return this.url;
    }
}

XML生成的是

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ProductImage>
    <ImageLocation>url</ImageLocation>
</ProductImage>

Jaxb：非法注解异常

Jaxb : IllegalAnnotationExceptions

java

xml

jaxb