JAXB Marshall not output XML

Question

我正在尝试创建一个简单的JAXB程序并将对象写入xml文件，但它没有创建任何输出-我正在粘贴示例代码和输出-

代码-

ObjectFactory fct = new ObjectFactory();
ImportParams imp = fct.createImportParams();
FolderMaps fmaps = fct.createFolderMaps();
FolderMap fmap = fct.createFolderMap();
imp.setFolderMaps(fmaps);
fmap.setSourceFolderPath("test");
fmaps.getFolderMap().add(fmap);
System.out.println("Size is " + fmaps.getFolderMap().size());
System.out.println("Path is " + fmap.getSourceFolderPath());

ImportParams imp1 = new ImportParams();
imp1.setFolderMaps(fmaps);
JAXBContext ctx = null;
System.out.println("Writing JAXB objects");
try {
ctx = JAXBContext.newInstance("com.au");
System.out.println("Inside JAXB");
Marshaller marshaller = ctx.createMarshaller();
System.out.println("Marshal Started");
marshaller.marshal(fmaps, System.out);
marshaller.marshal(imp, System.out);
marshaller.marshal(fmap, System.out);
System.out.println("Marshal Completed");
marshaller.marshal(fmaps, new File ("C:\Users\test\Desktop\eclipse_workspace_64\abcjaxb.xml"));
} catch (Exception e) {
// TODO: handle exception
}

输出为

Size is 1
Path is test
Writing JAXB objects
Inside JAXB
Marshal Started
Parameter file successfully created

它在封送开始后终止，并且没有创建xml文件

Answer 1

您需要将@XmlRootElement添加到com.au.FolderMap类中，例如

package com.au;
@XmlRootElement
public class FolderMap {
// ...
)