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Many novices are not very clear about how to use @ Async to implement asynchronous calls in springboot. In order to help you solve this problem, the following editor will explain it in detail. People with this need can come and learn. I hope you can get something.

Add the annotation @ EnableAsync to enable asynchronous calls

Package com.demo;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.scheduling.annotation.EnableAsync;/** * Hello world! * * / @ SpringBootApplication@EnableAsyncpublic class App {public static void main (String [] args) {SpringApplication.run (App.class,args);}}

Add @ Async to the called method

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);}}

Call test

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;@RestControllerpublic 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

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