Spring Boot 使用 Spring Schedule

依赖版本

Spring Boot版本:1.5.18

参考文档

springboot 定时任务@Scheduled 和 异步@Async

springboot配置

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# schedule
cron.one=0 30 10 * * ?

Spring Schedule 配置

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import org.slf4j.Logger;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.SchedulingConfigurer;
import org.springframework.scheduling.config.CronTask;
import org.springframework.scheduling.config.IntervalTask;
import org.springframework.scheduling.config.ScheduledTaskRegistrar;
import org.springframework.scheduling.support.ScheduledMethodRunnable;

import java.util.List;
import java.util.concurrent.Executor;
import java.util.concurrent.ScheduledThreadPoolExecutor;



@Configuration
@EnableScheduling
public class ScheduleConfigurer implements SchedulingConfigurer {
private static final Logger log = org.slf4j.LoggerFactory.getLogger(ScheduleConfigurer.class);
@Override
public void configureTasks(ScheduledTaskRegistrar taskRegistrar) {
taskRegistrar.setScheduler(taskExecutor());

/**
* 启动时打印任务
*/
List<CronTask> cronTasks = taskRegistrar.getCronTaskList();
List<IntervalTask> fixedDelayTasks = taskRegistrar.getFixedDelayTaskList();
List<IntervalTask> fixedRateTasks = taskRegistrar.getFixedRateTaskList();

for (CronTask cronTask : cronTasks){
String expression = cronTask.getExpression();
ScheduledMethodRunnable runnable = (ScheduledMethodRunnable) cronTask.getRunnable();
log.info("method: {},expression: {}",runnable.getMethod(),expression);
}

for (IntervalTask intervalTask : fixedDelayTasks){
ScheduledMethodRunnable runnable = (ScheduledMethodRunnable)intervalTask.getRunnable();
log.info("method: {},InitialDelay: {}",runnable.getMethod(),intervalTask.getInitialDelay());
}

for (IntervalTask intervalTask : fixedRateTasks){
long interval = intervalTask.getInterval();
ScheduledMethodRunnable runnable = (ScheduledMethodRunnable)intervalTask.getRunnable();
log.info("method: {},Initial: {}",runnable.getMethod(),intervalTask.getInterval());
}
}

@Bean(destroyMethod="shutdown")
public Executor taskExecutor() {
// 线程池
ScheduledThreadPoolExecutor scheduledThreadPoolExecutor = new ScheduledThreadPoolExecutor(5);
//scheduledThreadPoolExecutor.setRejectedExecutionHandler(new RejectedExecutionHandler() {
// @Override
// public void rejectedExecution(Runnable r, ThreadPoolExecutor executor) {
//
// }
//});

return scheduledThreadPoolExecutor;
}
}

设置定时任务

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import org.slf4j.Logger;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;


@Component
public class ScheduleOne {
private static final Logger log = org.slf4j.LoggerFactory.getLogger(ScheduleOne.class);
@Scheduled(cron = "${cron.one}")
public void test() {
log.info("计划任务开始执行");

}
}
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