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我在调用JAXB.marshal时使用Class AdapterDataObj将Class DataObj转换为AdaptedDataObj。@XmlJavaTypeAdapter在相同情况下被忽略
package test;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
@XmlJavaTypeAdapter(AdapterDataObj.class)
public class DataObj {
public String bla = "I'm DataObj";
public String name;
public DataObj(String name) {
this.name = name;
}
}
package test;
public class AdaptedDataObj {
public String bla="I'm AdaptedDataObj";
public String name;
public AdaptedDataObj(String name) {
this.name = name;
}
}
package test;
import javax.xml.bind.annotation.adapters.XmlAdapter;
public class AdapterDataObj extends XmlAdapter {
@Override
public DataObj unmarshal(AdaptedDataObj v) throws Exception {
return null; // not needed in this case
}
@Override
public AdaptedDataObj marshal(DataObj v) throws Exception {
System.out.println("Marschal for " + v.name + " called!");
return new AdaptedDataObj(v.name);
}
}
现在我把DataObj到一个新的类和JAXB.marshal被调用这个类。输出看起来很好。我也收到调用AdaptedDataObj的消息。
package test;
import javax.xml.bind.JAXB;
public class Testobj {
public DataObj x;
public Testobj() {
x = new DataObj("Hallo World");
}
public static void main(String[] args) throws Exception {
System.out.println("Testobj");
System.out.println("=================================");
Testobj to = new Testobj();
JAXB.marshal(to, System.out);
}
}
现在我改变“public DataObj x;”为“public Object x;”，因为我想不仅DataObj存储在该班。
但是在这种情况下AdapterDataObj不再被调用。 DataObj而不是AdapterDataObj被导出为xml。
任何想法的问题是什么？
我也尝试没有成功将@XmlJavaTypeAdapter添加到package-info.java。 AdapterDataObj仍未调用。我已经测试了Java 1.7.0_45和1.8.0-ea。
package test;
import javax.xml.bind.JAXB;
import javax.xml.bind.annotation.XmlSeeAlso;
@XmlSeeAlso({DataObj.class})
public class Testobj3 {
public Object x;
public Testobj3() {
x = new DataObj("Hallo World");
}
public static void main(String[] args) throws Exception {
System.out.println("Testobj3");
System.out.println("=================================");
Testobj3 to3 = new Testobj3();
JAXB.marshal(to3, System.out);
}
}