java - 对于带有 JAXB 注释的类，是否有类似 PostConstruct 的东西？

Question

在 JAXB 中是否有这样的功能可以在解码后(即在由 JAXB 构造后)对类执行操作？如果没有，我怎么能做到这一点？

Answer 1

您可以使用 JAXB Unmarshal Event Callbacks在您的 JAXB 类中定义，例如:

// This method is called after all the properties (except IDREF) are unmarshalled for this object, 
// but before this object is set to the parent object.
void afterUnmarshal( Unmarshaller u, Object parent )
{
    System.out.println( "After unmarshal: " + this.state );
}