springboot 中怎么利用@Async实现异步调用,很多新手对此不是很清楚,为了帮助大家解决这个难题,下面小编将为大家详细讲解,有这方面需求的人可以来学习下,希望你能有所收获。
添加注解@EnableAsync开启异步调用
package com.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableAsync;
/**
* Hello world!
*
*/
@SpringBootApplication
@EnableAsync
public class App
{
public static void main( String[] args )
{
SpringApplication.run(App.class,args);
}
}
在被调用方法上加 @Async
package com.demo.serviceImp;
import com.demo.serviceI.DemoService;
import org.springframework.scheduling.annotation.Async;
public class DemoServiceWindowImp implements DemoService {
@Override
public String info() {
return "window";
}
@Override
@Async
public void print(int i) {
System.out.println(i);
}
}
调用测试
package com.demo.action;
import com.demo.serviceI.DemoService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class DemoAction {
@Autowired
private DemoService demoService;
@RequestMapping(value = "health.json")
public String healt(){
return "{\"status\":\"UP\",\"diskSpace\":{\"status\":\"UP\",\"total\":249769230336,\"free\":71914618880,\"threshold\":10485760},\"db\":{\"status\":\"UP\",\"database\":\"MySQL\",\"hello\":1}}";
}
@RequestMapping(value = "user/info")
public String info(){
return demoService.info();
}
@RequestMapping(value = "print")
public void print(){
for (int i = 0; i < 100; i++) {
demoService.print(i);
}
}
}
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原文链接:https://my.oschina.net/u/3484671/blog/3097326