springboot实现异步任务

package com.kuang.service;

import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;

@Service
public class AsyncService {

    @Async
    public void hello(){
        try {
            Thread.sleep(5000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println("数据正在传送！");
    }
}

package com.kuang.controller;

import com.kuang.service.AsyncService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.WEB.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class AsyncController {

    @Autowired
    AsyncService asyncService;

    @RequestMapping("/hello")
    public String hello(){
        asyncService.hello();
        return "OK";
    }

}