springboot实现监听

实体类

package com.zhk.demo.entity;
import lombok.Data;

@Data
public class User
{
    //用户名
    private String name;

}

event

package com.zhk.demo.event;


import com.zhk.demo.entity.User;
import lombok.Getter;
import org.springframework.context.ApplicationEvent;


@Getter
public class UserEvent extends ApplicationEvent
{
    //注册用户对象
    private User user;

    
    public UserEvent(Object source,User user) {
	  super(source);
	  this.user = user;
    }
}

listener

package com.zhk.demo.listener;


import com.zhk.demo.entity.User;
import com.zhk.demo.event.UserEvent;
import org.springframework.context.event.EventListener;
import org.springframework.stereotype.Component;


@Component
public class AnnotationRegisterListener {

    
   @EventListener
    public void listener(UserEvent userEvent) {
	 User user = userEvent.getUser();
	 System.out.println(user.getName());
   }
}

controller

package com.zhk.demo.controller;

import com.zhk.demo.entity.User;
import com.zhk.demo.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;


@RestController
public class UserController {
    //用户业务逻辑实现
    @Autowired
    private UserService userService;
    @RequestMapping(value = "/insert")
    public String insert(User user) {
	  userService.register(user);
	  return "注册成功.";
    }
}

将上方注解方式替换成实现类

package com.zhk.demo.listener;

import com.zhk.demo.entity.User;
import com.zhk.demo.event.UserEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.stereotype.Component;

@Component
public class Userlistener implements ApplicationListener {

    @Override
    public void onApplicationEvent(UserEvent event) {
	  User user = event.getUser();
	  System.out.println(user.getName());

    }
}