JAXB封送/取消封送SWT.Image或AWT BufferedImage

Question

我正试图用jaxb封送一个包含Image的对象，然后对其进行解组（即保存/加载）。

有没有办法存储那个图像？

我正试图创建一个函数，该函数返回描述swt.image图像数据的字节数组，但一旦我将其标记为@XmlElement，存储过程就会失败，并引发如下异常：

com.sun.xml.internal.bind.v2.runtime.IllegalAnnotationsException: 1 counts of IllegalAnnotationExceptions
JAXB annotation is placed on a method that is not a JAXB property
    this problem is related to the following location:
        at @javax.xml.bind.annotation.XmlElement()

此外，我已经测试过将SWT.Image转换为AWT.BufferedImage，但仍然得到相同的Exception。

Answer 1

您的异常表示您已在非访问器的方法（get/set方法）上放置了注释。以下是使用java.awt.Image属性的示例：

根

package forum9094655;
import java.awt.Image;
import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement
public class Root {
    private Image image;
    public Image getImage() {
        return image;
    }
    public void setImage(Image image) {
        this.image = image;
    }
}

演示

package forum9094655;
import java.awt.Image;
import java.awt.image.BufferedImage;
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(Root.class);
        Root root = new Root();
        Image image = new BufferedImage(1,1,BufferedImage.TYPE_INT_RGB);
        root.setImage(image);
        Marshaller marshaller = jc.createMarshaller();
        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
        marshaller.marshal(root, System.out);
    }
}

输出

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<root>
    <image>iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAIAAACQd1PeAAAADElEQVR42mNgYGAAAAAEAAHI6uv5AAAAAElFTkSuQmCC</image>
</root>