springboot-異步任務

springboot-異步任務

簡單測試使用

異步任務可以簡單了解為 前端先立刻傳回OK之類的已經做完的資訊 然後後端還在運作任務

編寫service類 并通過注解告訴springboot為異步任務

package com.jie.service;

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

@Service
public class AsynService {
    //告訴springboot這是一個異步方法
    @Async
    public void hello(){
        try {
            Thread.sleep(3000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println("資料正在處理");
    }
}
           

package com.jie.controller;

import com.jie.service.AsynService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class AsynController {
    @Autowired
    AsynService asynService;
    @RequestMapping("/hello")
    public String hello(){
        asynService.hello();
        return "ok";
    }
}
           

package com.jie;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableAsync;

//開啟異步功能
@EnableAsync
@SpringBootApplication
public class SpringbootAsynApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringbootAsynApplication.class, args);
    }

}