Binding a Generic Java Class to a JSON using JAXB

http://stackoverflow.com/questions/3422545/binding-a-generic-java-class-to-a-json-using-jaxb

可能需要才可以访问

@XmlRootElement 
@XmlSeeAlso(DataClass.class)
public static class EnvelopeClass<T> {      @XmlElement     
public String version;
@XmlElement  
public T data;  
EnvelopeClass() {     } 
EnvelopeClass(String version, T data) { 
  this.version = version; 
  this.data = data;    
 }
}  @XmlRootElement 
public static class DataClass {      @XmlElement    
 public String name;  
    DataClass() {     }   
   DataClass(String name) {   
      this.name = name;  
   }
 } 

import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement(name = "data")
public class DataClass {
	@XmlElement
	public String name;

	DataClass() {
	}

	DataClass(String name) {
		this.name = name;
	}
}

demo

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(EnvelopeClass.class);
		DataClass data = new DataClass("myName");
		EnvelopeClass envelope = new EnvelopeClass<DataClass>("1.0", data);
		Marshaller marshaller = jc.createMarshaller();
		marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
		marshaller.marshal(envelope, System.out);
	}
}