java spring boot 定时器
启动类加个
@EnableScheduling
package com.example.demo2122;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableScheduling;
@SpringBootApplication
@EnableScheduling
public class Demo2122Application {
public static void main(String[] args) {
SpringApplication.run(Demo2122Application.class, args);
}
}
然后函数前面加个
@Scheduled(fixedRate = 5000)
package com.example.demo2122;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import javax.annotation.Resource;
import java.util.*;
@RestController
@Component
public class HelloControl {
@GetMapping("/hello")
public String hello(@RequestParam(value = "name", defaultValue = "World") String name) {
return "fwef";
}
@Scheduled(fixedRate = 5000)
public void scheduledTask1(){
System.out.println("5秒执行一次");
}
}
然后。就跑起来了。。。