JAXB編組/解組SWT.Image或AWT BufferedImage

Question

我試圖用jaxb對包含圖像的對象進行編組，然後解組它（即保存/加載）。

有沒有一種方法來存儲該圖像？

我想創建它返回字節數組描述swt.image圖象 - 的函數，但一旦我將其標記爲一個@XmlElement，存儲的過程中出現失敗投擲像這樣的例外：

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，我已經測試將SWT.Image轉換爲AWT.BufferedImage，但我仍然得到相同的異常。

Answer 1

您的異常表明您已經對不是訪問器的方法（get/set方法）放置了註釋。下面是使用java.awt.Image屬性的示例：

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); 
    } 

} 

輸出

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