spring4 mvc 定時任務

注意：定時任務的組件（類）一定不要lazy init,可以在設定檔中加default-lazy-init="false",或者在執行的組件上家註解@Lazy(false)

1.設定檔

先添加命名空間<?xml version="1.0" encoding="UTF-8"?><beans xmlns:task="http://www.springframework.org/schema/task"         xsi:schemaLocation="http://www.springframework.org/schema/task              http://www.springframework.org/schema/task/spring-task-4.0.xsd">    <!-- here is a right place for such configuration        -->  <task:annotation-driven executor="myExecutor" scheduler="myScheduler"/>  <task:executor  id="myExecutor"  pool-size="5"/>  <task:scheduler id="myScheduler" pool-size="10"/>

2.要執行的組件（類）

@Service@Lazy(false)public class PrintSchedule {    private static final SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm:ss");//    @Scheduled(cron = "0-59 * * * * *")//每秒執行一次    @Scheduled(cron = "0 */10 * * * *")//每十分鐘執行一次    public void reportCurrentTime() {        System.out.println("The time is now " + dateFormat.format(new Date()));    }      }