package org.springframework.context;

import java.util.EventListener;

public interface ApplicationListener<E extends ApplicationEvent> extends EventListener {

    /**

     * Handle an application event.

     * @param event the event to respond to

     */

    void onApplicationEvent(E event);

}

package com.mobile.thinks.login.listen;

import org.springframework.context.ApplicationListener;

import com.mobile.thinks.login.event.BaseEvent;

public class LoginListen implements ApplicationListener<BaseEvent>{

    @Override

    public void onApplicationEvent(BaseEvent event) {

    }

}

package com.mobile.thinks.login.event;

import org.springframework.context.ApplicationEvent;

public abstract class BaseEvent extends ApplicationEvent {

    public BaseEvent(Object source) {

        super(source);

    }

}

    public static void main(String[] args) {

        LoginListen listen=new LoginListen();

        Class<?> cls =listen.getClass();

        //cls==>class com.mobile.thinks.login.listen.LoginListen

        System.out.println("cls==>"+cls);

        Type[] type=cls.getGenericInterfaces();

        Type types=cls.getGenericSuperclass();

        for(int i=0;i<type.length;i++){

            Type ty=type[i];

            if(ty instanceof ParameterizedType){

                Type[] sTypes=((ParameterizedType)ty).getActualTypeArguments();

                for(int j=0;j<sTypes.length;j++){

                    Type clsa=sTypes[j];

                    //范型类型==>class com.mobile.thinks.login.event.BaseEvent

                    System.out.println("范型类型==>"+(Class)clsa);

                }

            }

        }

    }