通过泛型获得继承类的类原型getGenericSuperclass

首先贴上代码

package com;

import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;

/**
 * Created by huyanxia on 2017/10/12.
 */
public class Test {
    public static void main(String[] args) {  
     Human human = new Human();
     //调用测试
     human.getClasses();
    }
}
//泛型类Person
class Person <E>{
    String entityClassName;//类名称
    public Class<E> entityClass;//类原型
    public void getClasses(){
        Class<? extends Person> clazz = this.getClass();//this是human的对象，clazz的值是class com.Human
        Type type = clazz.getGenericSuperclass();//获得clazz的父类，type的值com.Person<com.Hobby>
        Type type1= ((ParameterizedType)type).getActualTypeArguments()[0];//获得父类的泛型参数的类型，0表示第一个参数，type1的值是class com.Hobby
        this.entityClass =  (Class<E>)type1;//class com.Hobby
        this.entityClassName = this.entityClass.getSimpleName();//Hobby
    }
}
class Human extends Person<Hobby>{
    String hobby ;
}
class Hobby{

}

getClasses方法可以简写

Class<? extends Person> thisClass = this.getClass();
entityClass = (Class<E>) ((ParameterizedType) thisClass.getGenericSuperclass()).getActualTypeArguments()[0];
entityClassName = entityClass.getSimpleName();

结果：