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這篇文章將為大家詳細(xì)講解有關(guān)Springboot實(shí)現(xiàn)集成定時(shí)器和多線(xiàn)程異步處理，文章內(nèi)容質(zhì)量較高，因此小編分享給大家做個(gè)參考，希望大家閱讀完這篇文章后對(duì)相關(guān)知識(shí)有一定的了解。
springboot集成多線(xiàn)程異步,直接上配置:
/**
* 線(xiàn)程池異步配置
*/
@Configuration
@EnableAsync
public class ThreadExecutorConfig
implements AsyncConfigurer {
@Override
public Executor getAsyncExecutor() {
ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
// 設(shè)置核心線(xiàn)程數(shù)
executor.setCorePoolSize(5);
// 設(shè)置最大線(xiàn)程數(shù)
executor.setMaxPoolSize(7);
// 設(shè)置隊(duì)列容量
executor.setQueueCapacity(20);
// 設(shè)置線(xiàn)程活躍時(shí)間（秒）
executor.setKeepAliveSeconds(60);
// 設(shè)置默認(rèn)線(xiàn)程名稱(chēng)
executor.setThreadNamePrefix("PASCAL-");
// 設(shè)置拒絕策略
executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
// 等待所有任務(wù)結(jié)束后再關(guān)閉線(xiàn)程池
executor.setWaitForTasksToCompleteOnShutdown(true);
executor.initialize();
return executor;
}
@Override
public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
return new MyAsyncUncaughtExceptionHandler();
}
}下面的是對(duì)多線(xiàn)程異步的時(shí)候報(bào)出的異常處理方法,可以自定義一個(gè)處理多線(xiàn)程異常類(lèi)來(lái)實(shí)現(xiàn)自身的業(yè)務(wù)邏輯.
import org.springframework.aop.interceptor.AsyncUncaughtExceptionHandler;
import java.lang.reflect.Method;
public class MyAsyncUncaughtExceptionHandler implements
AsyncUncaughtExceptionHandler {
@Override
public void handleUncaughtException(Throwable ex,
Method method, Object... params) {
// handle exception
}
}啟動(dòng)類(lèi)上要記得添加異步和開(kāi)啟定時(shí)器的標(biāo)簽
@SpringBootApplication
@EnableScheduling
@Async
public class MultithreadingApplication {
public static void main(String[] args) {
SpringApplication.run(MultithreadingApplication.class, args);
}
}業(yè)務(wù)邏輯方法:
@Async
@Scheduled(initialDelay=1000,fixedDelay = 5000)
public void test(){
SimpleDateFormat format=new SimpleDateFormat("HH:mm:ss");
try {
logger.info("當(dāng)前線(xiàn)程為:"+Thread.currentThread().getName()+",方法開(kāi)始時(shí)間為:"+format.format(new Date()));
Thread.sleep(10000);
logger.info("當(dāng)前線(xiàn)程為:"+Thread.currentThread().getName()+",方法結(jié)束時(shí)間為:"+format.format(new Date()));
} catch (InterruptedException e) {
e.printStackTrace();
}
}對(duì)于@Schedule注解的使用方法:
點(diǎn)進(jìn)去可以看到有幾個(gè)可選參數(shù):
fixedDelay:控制方法執(zhí)行的間隔時(shí)間，是以上一次方法執(zhí)行完開(kāi)始算起，如上一次方法執(zhí)行阻塞住了，那么直到上一次執(zhí)行完，并間隔給定的時(shí)間后，執(zhí)行下一次
fixedRate:是按照一定的速率執(zhí)行，是從上一次方法執(zhí)行開(kāi)始的時(shí)間算起，如果上一次方法阻塞住了，下一次也是不會(huì)執(zhí)行，但是在阻塞這段時(shí)間內(nèi)累計(jì)應(yīng)該執(zhí)行的次數(shù)，當(dāng)不再阻塞時(shí)，一下子把這些全部執(zhí)行掉，而后再按照固定速率繼續(xù)執(zhí)行。
initialDelay:如： @Scheduled(initialDelay = 10000,fixedRate = 15000
這個(gè)定時(shí)器就是在上一個(gè)的基礎(chǔ)上加了一個(gè)initialDelay = 10000 意思就是在容器啟動(dòng)后,延遲10秒后再執(zhí)行一次定時(shí)器,以后每15秒再執(zhí)行一次該定時(shí)器.
cron表達(dá)式可以定制化執(zhí)行任務(wù)，但是執(zhí)行的方式是與fixedDelay相近的，也是會(huì)按照上一次方法結(jié)束時(shí)間開(kāi)始算起。
這里可以根據(jù)自身的業(yè)務(wù)需求,看到底選擇哪一個(gè)更適合,這里cron表達(dá)式就不再多言,可以結(jié)合自身應(yīng)用場(chǎng)景來(lái)定
這樣,需求就實(shí)現(xiàn)了
測(cè)試結(jié)果:
20-07-07 11:12:40.436 INFO 32360 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8081 (http) with context path '' 2020-07-07 11:12:40.444 INFO 32360 --- [ main] c.e.m.MultithreadingApplication : Started MultithreadingApplication in 1.223 seconds (JVM running for 1.739) 2020-07-07 11:12:41.445 INFO 32360 --- [ scheduling-1] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 2020-07-07 11:12:41.452 INFO 32360 --- [ PASCAL-1] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-1,方法開(kāi)始時(shí)間為:11:12:41 2020-07-07 11:12:46.448 INFO 32360 --- [ PASCAL-2] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-2,方法開(kāi)始時(shí)間為:11:12:46 2020-07-07 11:12:51.450 INFO 32360 --- [ PASCAL-3] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-3,方法開(kāi)始時(shí)間為:11:12:51 2020-07-07 11:12:51.453 INFO 32360 --- [ PASCAL-1] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-1,方法結(jié)束時(shí)間為:11:12:51 2020-07-07 11:12:56.449 INFO 32360 --- [ PASCAL-2] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-2,方法結(jié)束時(shí)間為:11:12:56 2020-07-07 11:12:56.450 INFO 32360 --- [ PASCAL-4] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-4,方法開(kāi)始時(shí)間為:11:12:56 2020-07-07 11:13:01.450 INFO 32360 --- [ PASCAL-3] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-3,方法結(jié)束時(shí)間為:11:13:01 2020-07-07 11:13:01.452 INFO 32360 --- [ PASCAL-5] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-5,方法開(kāi)始時(shí)間為:11:13:01 2020-07-07 11:13:06.451 INFO 32360 --- [ PASCAL-4] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-4,方法結(jié)束時(shí)間為:11:13:06 2020-07-07 11:13:06.453 INFO 32360 --- [ PASCAL-1] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-1,方法開(kāi)始時(shí)間為:11:13:06 2020-07-07 11:13:11.453 INFO 32360 --- [ PASCAL-5] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-5,方法結(jié)束時(shí)間為:11:13:11 2020-07-07 11:13:11.455 INFO 32360 --- [ PASCAL-2] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-2,方法開(kāi)始時(shí)間為:11:13:11 2020-07-07 11:13:16.453 INFO 32360 --- [ PASCAL-1] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-1,方法結(jié)束時(shí)間為:11:13:16 2020-07-07 11:13:16.455 INFO 32360 --- [ PASCAL-3] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-3,方法開(kāi)始時(shí)間為:11:13:16 2020-07-07 11:13:21.456 INFO 32360 --- [ PASCAL-2] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-2,方法結(jié)束時(shí)間為:11:13:21 2020-07-07 11:13:21.457 INFO 32360 --- [ PASCAL-4] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-4,方法開(kāi)始時(shí)間為:11:13:21 2020-07-07 11:13:26.456 INFO 32360 --- [ PASCAL-3] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-3,方法結(jié)束時(shí)間為:11:13:26 2020-07-07 11:13:26.457 INFO 32360 --- [ PASCAL-5] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-5,方法開(kāi)始時(shí)間為:11:13:26 2020-07-07 11:13:31.458 INFO 32360 --- [ PASCAL-4] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-4,方法結(jié)束時(shí)間為:11:13:31 2020-07-07 11:13:31.459 INFO 32360 --- [ PASCAL-1] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-1,方法開(kāi)始時(shí)間為:11:13:31 2020-07-07 11:13:36.458 INFO 32360 --- [ PASCAL-5] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-5,方法結(jié)束時(shí)間為:11:13:36 2020-07-07 11:13:36.460 INFO 32360 --- [ PASCAL-2] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-2,方法開(kāi)始時(shí)間為:11:13:36 2020-07-07 11:13:41.459 INFO 32360 --- [ PASCAL-1] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-1,方法結(jié)束時(shí)間為:11:13:41 2020-07-07 11:13:41.462 INFO 32360 --- [ PASCAL-3] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-3,方法開(kāi)始時(shí)間為:11:13:41 2020-07-07 11:13:46.461 INFO 32360 --- [ PASCAL-2] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:PASCAL-2,方法結(jié)束時(shí)間為:11:13:46
每隔五秒執(zhí)行一次
-----------------------分割線(xiàn)-----------------------
如果有多個(gè)定時(shí)任務(wù),每個(gè)任務(wù)需要在不同的線(xiàn)程間處理的話(huà),就要用另外的配置:如下:
/**
* 配置多個(gè)schedule的線(xiàn)程配置
*/
@Configuration
@EnableScheduling
public class ScheduleConfig implements SchedulingConfigurer{
/*
* 并行任務(wù)
*/
public void configureTasks(ScheduledTaskRegistrar taskRegistrar)
{
ThreadPoolTaskScheduler taskScheduler = new ThreadPoolTaskScheduler();
taskScheduler.setThreadNamePrefix("Schedule-Task-");
taskScheduler.setPoolSize(5);
taskScheduler.setAwaitTerminationSeconds(60);
taskScheduler.setWaitForTasksToCompleteOnShutdown(true);
taskScheduler.initialize();
taskRegistrar.setTaskScheduler(taskScheduler);
}
}業(yè)務(wù)如下:
@Scheduled(cron = "*/5 * * * * ?")
public void test1(){
SimpleDateFormat format=new SimpleDateFormat("HH:mm:ss");
try {
logger.info("當(dāng)前線(xiàn)程為:"+Thread.currentThread().getName()+",方法開(kāi)始時(shí)間為:"+format.format(new Date()));
Thread.sleep(10000);
logger.info("當(dāng)前線(xiàn)程為:"+Thread.currentThread().getName()+",方法結(jié)束時(shí)間為:"+format.format(new Date()));
} catch (InterruptedException e) {
e.printStackTrace();
}
}
@Scheduled(cron = "*/5 * * * * ?")
public void test2(){
SimpleDateFormat format=new SimpleDateFormat("HH:mm:ss");
try {
logger.info("當(dāng)前線(xiàn)程為:"+Thread.currentThread().getName()+",方法開(kāi)始時(shí)間為:"+format.format(new Date()));
Thread.sleep(10000);
logger.info("當(dāng)前線(xiàn)程為:"+Thread.currentThread().getName()+",方法結(jié)束時(shí)間為:"+format.format(new Date()));
} catch (InterruptedException e) {
e.printStackTrace();
}
}測(cè)試結(jié)果:
2020-07-07 11:34:53.101 INFO 27440 --- [ main] c.e.m.MultithreadingApplication : Started MultithreadingApplication in 1.147 seconds (JVM running for 1.74) 2020-07-07 11:34:55.002 INFO 27440 --- [Schedule-Task-2] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:Schedule-Task-2,方法開(kāi)始時(shí)間為:11:34:55 2020-07-07 11:34:55.002 INFO 27440 --- [Schedule-Task-1] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:Schedule-Task-1,方法開(kāi)始時(shí)間為:11:34:55 2020-07-07 11:35:05.003 INFO 27440 --- [Schedule-Task-2] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:Schedule-Task-2,方法結(jié)束時(shí)間為:11:35:05 2020-07-07 11:35:05.003 INFO 27440 --- [Schedule-Task-1] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:Schedule-Task-1,方法結(jié)束時(shí)間為:11:35:05 2020-07-07 11:35:10.001 INFO 27440 --- [Schedule-Task-2] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:Schedule-Task-2,方法開(kāi)始時(shí)間為:11:35:10 2020-07-07 11:35:10.001 INFO 27440 --- [Schedule-Task-1] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:Schedule-Task-1,方法開(kāi)始時(shí)間為:11:35:10 2020-07-07 11:35:20.001 INFO 27440 --- [Schedule-Task-2] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:Schedule-Task-2,方法結(jié)束時(shí)間為:11:35:20 2020-07-07 11:35:20.002 INFO 27440 --- [Schedule-Task-1] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:Schedule-Task-1,方法結(jié)束時(shí)間為:11:35:20 2020-07-07 11:35:25.001 INFO 27440 --- [Schedule-Task-1] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:Schedule-Task-1,方法開(kāi)始時(shí)間為:11:35:25 2020-07-07 11:35:25.003 INFO 27440 --- [Schedule-Task-3] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:Schedule-Task-3,方法開(kāi)始時(shí)間為:11:35:25 2020-07-07 11:35:35.001 INFO 27440 --- [Schedule-Task-1] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:Schedule-Task-1,方法結(jié)束時(shí)間為:11:35:35 2020-07-07 11:35:35.003 INFO 27440 --- [Schedule-Task-3] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:Schedule-Task-3,方法結(jié)束時(shí)間為:11:35:35 2020-07-07 11:35:40.002 INFO 27440 --- [Schedule-Task-1] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:Schedule-Task-1,方法開(kāi)始時(shí)間為:11:35:40 2020-07-07 11:35:40.002 INFO 27440 --- [Schedule-Task-5] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:Schedule-Task-5,方法開(kāi)始時(shí)間為:11:35:40 2020-07-07 11:35:50.002 INFO 27440 --- [Schedule-Task-1] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:Schedule-Task-1,方法結(jié)束時(shí)間為:11:35:50 2020-07-07 11:35:50.002 INFO 27440 --- [Schedule-Task-5] c.e.multithreading.service.TestService : 當(dāng)前線(xiàn)程為:Schedule-Task-5,方法結(jié)束時(shí)間為:11:35:50
關(guān)于Springboot實(shí)現(xiàn)集成定時(shí)器和多線(xiàn)程異步處理就分享到這里了，希望以上內(nèi)容可以對(duì)大家有一定的幫助，可以學(xué)到更多知識(shí)。如果覺(jué)得文章不錯(cuò)，可以把它分享出去讓更多的人看到。
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