[Spring] 스케줄러 사용

1. webapp -> WEB-INF -> spring -> appServlet -> servlet-context.xml 이동

2.  beans 태그 안과 그 밖에 아래 빨간색으로 표기한 것을 추가.

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

<beans:beans xmlns="http://www.springframework.org/schema/mvc"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xmlns:beans="http://www.springframework.org/schema/beans"

xmlns:context="http://www.springframework.org/schema/context"

xmlns:mvc="http://www.springframework.org/schema/mvc"

xmlns:task="http://www.springframework.org/schema/task"

xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd

http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd

http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd

http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.1.xsd">

<task:annotation-driven />

3. java 클래스를 만든다.

   ex ) com.test.scheduler

package com.test.scheduler;

import org.springframework.scheduling.annotation.Scheduled;

import org.springframework.stereotype.Component;

/**

 * wifi 상태를 체크하는 스케줄러

 * @author 임성진

 *

 */

@Component

public class WifiStateScheduler {

/**

* 5초 주기로 검사한다.

*/

@Scheduled(fixedRate=5000)

public void cronTest1() {

System.out.println("5초 뒤에 실행됩니다. ");

}

}

4. 실행해보면 "5초 뒤에 실행됩니다."가 출력된 것을 볼 수 있다.