Spring Boot 中的异步调用

<?xml version="1.0" encoding="UTF-8"?>

	4.0.0
	
		org.springframework.boot
		spring-boot-starter-parent
		2.6.2
		
	
	com.hundsun
	springboot-async
	0.0.1-SNAPSHOT
	springboot-async
	
		1.8
	
	
		
			org.springframework.boot
			spring-boot-starter
		

		
			org.springframework.boot
			spring-boot-starter-test
			test
		
	

	
		
			
				org.springframework.boot
				spring-boot-maven-plugin
			
		
	

package com.hundsun.springbootasync.service;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Component;

@Component
public class MainApp {

    private Logger logger = LoggerFactory.getLogger(getClass());

    @Async
    public void asyncShow01() {
        sleep();
        logger.info("异步方法内部线程名称：{}", Thread.currentThread().getName());
    }

    public void syncShow02() {
        sleep();
        logger.info("同步方法内部线程名称：{}", Thread.currentThread().getName());
    }

    public void sleep() {
        long number = 0;
        for (long i = 0; i < 100000000; i++) {
            number+=i;
        }
        logger.info("总和：{}",number);
    }
}

package com.hundsun.springbootasync;

import org.junit.jupiter.api.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.scheduling.annotation.EnableAsync;

import com.hundsun.springbootasync.service.MainApp;

@EnableAsync // 开启异步支持
@SpringBootTest
class SpringbootAsyncApplicationTests {

    private Logger logger = LoggerFactory.getLogger(this.getClass());

    @Autowired
    private MainApp mainApp;

    @Test
    void test01() {
        long start = System.currentTimeMillis();
        mainApp.asyncShow01();
        long end = System.currentTimeMillis();
        logger.info("总耗时：{} ms", end - start);
    }

    @Test
    void test02() {
        long start = System.currentTimeMillis();
        mainApp.syncShow02();
        long end = System.currentTimeMillis();
        logger.info("总耗时：{} ms", end - start);
    }

}