[JAVA]如何获取通用类的键入名称

Question

I would like to get E class name in String value with java reflection. For example, if i create Node typed in Person, getClassName() has to return "Person"

Someone can help me?

public class Node<E extends AbstractNode> {

String getClassName() {
    String name = ?? 
}

private String alias;

public Node() {

}
}


public abstract class AbstractNode {
}


public class Person extends AbstractNode {
private String name;
private String surname;

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}

public String getSurname() {
    return surname;
}

public void setSurname(String surname) {
    this.surname = surname;
}
}

Answer 1

Add a field to your Node class

private static final Class<T> type;

And add this to your constructor signature

public Node(Class type) {
   this.type = type;
}

Lastly, create the getClassName method in your Node class:

public String getClassName(){
    return this.type.getName();
}

Edit: As a sidenote, your AbstractNode class is not really necessary (it doesn't do anything) and therefore neither is the extend in Person.