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：