├── src ├── main │ ├── resources │ │ └── META-INF │ │ │ └── spring.factories │ └── java │ │ └── com │ │ └── gaoice │ │ └── distributed │ │ └── scheduling │ │ ├── annotation │ │ ├── NonDistributed.java │ │ └── EnableDistributedScheduling.java │ │ ├── DistributedHandler.java │ │ ├── redis │ │ └── RedisDistributedHandler.java │ │ ├── DistributedSchedulingAutoConfigure.java │ │ └── aspect │ │ └── ScheduledAspect.java └── test │ ├── resources │ └── application.yml │ └── java │ └── com │ └── gaoice │ └── distributed │ └── scheduling │ └── DemoApplication.java ├── .gitignore ├── README.md ├── pom.xml └── LICENSE /src/main/resources/META-INF/spring.factories: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /src/test/resources/application.yml: -------------------------------------------------------------------------------- 1 | server: 2 | port: 8081 3 | spring: 4 | application: 5 | name: testApp 6 | redis: 7 | host: 127.0.0.1 8 | port: 6379 9 | -------------------------------------------------------------------------------- /src/main/java/com/gaoice/distributed/scheduling/annotation/NonDistributed.java: -------------------------------------------------------------------------------- 1 | package com.gaoice.distributed.scheduling.annotation; 2 | 3 | import java.lang.annotation.*; 4 | 5 | /** 6 | * @author gaoice 7 | */ 8 | @Target({ElementType.METHOD}) 9 | @Retention(RetentionPolicy.RUNTIME) 10 | @Documented 11 | public @interface NonDistributed { 12 | } 13 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Compiled class file 2 | *.class 3 | 4 | # Log file 5 | *.log 6 | 7 | # BlueJ files 8 | *.ctxt 9 | 10 | # Mobile Tools for Java (J2ME) 11 | .mtj.tmp/ 12 | 13 | # Package Files # 14 | *.jar 15 | *.war 16 | *.nar 17 | *.ear 18 | *.zip 19 | *.tar.gz 20 | *.rar 21 | 22 | # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml 23 | hs_err_pid* 24 | 25 | /.idea 26 | /target 27 | *.iml 28 | *.xlsx 29 | -------------------------------------------------------------------------------- /src/main/java/com/gaoice/distributed/scheduling/DistributedHandler.java: -------------------------------------------------------------------------------- 1 | package com.gaoice.distributed.scheduling; 2 | 3 | import java.util.concurrent.TimeUnit; 4 | 5 | /** 6 | * @author gaoice 7 | */ 8 | public interface DistributedHandler { 9 | 10 | /** 11 | * @param key 定时任务 key 12 | * @param timeout 锁定时间 13 | * @param unit 时间单位 14 | * @return 是否已经处理过该定时任务 15 | */ 16 | boolean lock(String key, long timeout, TimeUnit unit); 17 | } 18 | -------------------------------------------------------------------------------- /src/main/java/com/gaoice/distributed/scheduling/annotation/EnableDistributedScheduling.java: -------------------------------------------------------------------------------- 1 | package com.gaoice.distributed.scheduling.annotation; 2 | 3 | import com.gaoice.distributed.scheduling.DistributedSchedulingAutoConfigure; 4 | import org.springframework.context.annotation.Import; 5 | import org.springframework.scheduling.annotation.EnableScheduling; 6 | 7 | import java.lang.annotation.*; 8 | 9 | /** 10 | * @author gaoice 11 | */ 12 | @Target(ElementType.TYPE) 13 | @Retention(RetentionPolicy.RUNTIME) 14 | @Documented 15 | @Import(DistributedSchedulingAutoConfigure.class) 16 | @EnableScheduling 17 | public @interface EnableDistributedScheduling { 18 | } 19 | -------------------------------------------------------------------------------- /src/main/java/com/gaoice/distributed/scheduling/redis/RedisDistributedHandler.java: -------------------------------------------------------------------------------- 1 | package com.gaoice.distributed.scheduling.redis; 2 | 3 | import com.gaoice.distributed.scheduling.DistributedHandler; 4 | import org.springframework.data.redis.core.StringRedisTemplate; 5 | 6 | import java.util.concurrent.TimeUnit; 7 | 8 | /** 9 | * @author gaoice 10 | */ 11 | public class RedisDistributedHandler implements DistributedHandler { 12 | 13 | StringRedisTemplate stringRedisTemplate; 14 | 15 | public RedisDistributedHandler(StringRedisTemplate stringRedisTemplate) { 16 | this.stringRedisTemplate = stringRedisTemplate; 17 | } 18 | 19 | @Override 20 | public boolean lock(String key, long timeout, TimeUnit unit) { 21 | Boolean isAbsent = stringRedisTemplate.opsForValue().setIfAbsent(key, "", timeout, unit); 22 | return Boolean.TRUE.equals(isAbsent); 23 | } 24 | } 25 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Distributed Scheduling 2 | 增强 Spring `@Scheduled` 注解，使其支持分布式的定时调度。服务有多个实例的情况下，不同实例之间不会重复执行相同的定时任务。 3 | ## 使用 4 | 先决条件：配置 redis 。 5 | 6 | 使用方法：引入注解 `@EnableDistributedScheduling` 即可生效。 7 | 8 | ```java 9 | @EnableDistributedScheduling 10 | @SpringBootApplication 11 | public class DemoApplication { 12 | public static void main(String[] args) { 13 | SpringApplication.run(DemoApplication.class, args); 14 | } 15 | } 16 | ``` 17 | 18 | 已提交至 `Maven` 中央仓库。 19 | 20 | `Maven` 21 | 22 | ```xml 23 | 24 | com.gaoice 25 | distributed-scheduling-spring-boot-starter 26 | 1.2 27 | 28 | ``` 29 | 30 | ## 版本 31 | 32 | - v 1.2，新增 `@NonDistributed` 注解，用来标记非分布式的定时任务（即不进行增强处理）。 33 | - v 1.1，支持直接使用 `@EnableDistributedScheduling` 注解，不必再手动引入 `@EnableScheduling` 注解。 34 | - v 1.0，增强 `@Scheduled` 注解，使其支持分布式的定时调度。 35 | -------------------------------------------------------------------------------- /src/test/java/com/gaoice/distributed/scheduling/DemoApplication.java: -------------------------------------------------------------------------------- 1 | package com.gaoice.distributed.scheduling; 2 | 3 | import com.gaoice.distributed.scheduling.annotation.EnableDistributedScheduling; 4 | import com.gaoice.distributed.scheduling.annotation.NonDistributed; 5 | import org.springframework.boot.SpringApplication; 6 | import org.springframework.boot.autoconfigure.SpringBootApplication; 7 | import org.springframework.scheduling.annotation.Scheduled; 8 | 9 | @EnableDistributedScheduling 10 | @SpringBootApplication 11 | public class DemoApplication { 12 | 13 | public static void main(String[] args) { 14 | SpringApplication.run(DemoApplication.class, args); 15 | } 16 | 17 | @Scheduled(cron = "0/1 * * * * ?") 18 | public void test() { 19 | System.out.println("Scheduled run"); 20 | } 21 | 22 | @Scheduled(cron = "0/1 * * * * ?") 23 | @NonDistributed 24 | public void nonDistributedTest() { 25 | System.out.println("NonDistributed Scheduled run"); 26 | } 27 | 28 | } 29 | -------------------------------------------------------------------------------- /src/main/java/com/gaoice/distributed/scheduling/DistributedSchedulingAutoConfigure.java: -------------------------------------------------------------------------------- 1 | package com.gaoice.distributed.scheduling; 2 | 3 | import com.gaoice.distributed.scheduling.aspect.ScheduledAspect; 4 | import com.gaoice.distributed.scheduling.redis.RedisDistributedHandler; 5 | import org.springframework.beans.BeansException; 6 | import org.springframework.boot.autoconfigure.condition.ConditionalOnBean; 7 | import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean; 8 | import org.springframework.boot.context.properties.ConfigurationProperties; 9 | import org.springframework.boot.context.properties.EnableConfigurationProperties; 10 | import org.springframework.context.ApplicationContext; 11 | import org.springframework.context.ApplicationContextAware; 12 | import org.springframework.context.annotation.Bean; 13 | import org.springframework.context.annotation.Configuration; 14 | import org.springframework.data.redis.connection.RedisConnectionFactory; 15 | import org.springframework.data.redis.core.StringRedisTemplate; 16 | import org.springframework.util.StringUtils; 17 | 18 | import javax.annotation.PostConstruct; 19 | import java.net.UnknownHostException; 20 | 21 | /** 22 | * @author gaoice 23 | */ 24 | @Configuration 25 | @EnableConfigurationProperties(DistributedSchedulingAutoConfigure.class) 26 | @ConfigurationProperties("com.gaoice.distributed.scheduling") 27 | public class DistributedSchedulingAutoConfigure implements ApplicationContextAware { 28 | 29 | private String appName; 30 | 31 | private ApplicationContext applicationContext; 32 | 33 | @PostConstruct 34 | public void init() { 35 | if (StringUtils.isEmpty(appName)) { 36 | appName = applicationContext.getId(); 37 | } 38 | } 39 | 40 | @Bean 41 | @ConditionalOnMissingBean 42 | public StringRedisTemplate stringRedisTemplate(RedisConnectionFactory redisConnectionFactory) throws UnknownHostException { 43 | StringRedisTemplate template = new StringRedisTemplate(); 44 | template.setConnectionFactory(redisConnectionFactory); 45 | return template; 46 | } 47 | 48 | @Bean 49 | @ConditionalOnBean(StringRedisTemplate.class) 50 | public DistributedHandler redisDistributedHandler(StringRedisTemplate stringRedisTemplate) { 51 | return new RedisDistributedHandler(stringRedisTemplate); 52 | } 53 | 54 | @Bean 55 | public ScheduledAspect scheduledAspect(DistributedHandler distributedHandler) { 56 | return new ScheduledAspect(appName, distributedHandler); 57 | } 58 | 59 | @Override 60 | public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { 61 | this.applicationContext = applicationContext; 62 | } 63 | 64 | public String getAppName() { 65 | return appName; 66 | } 67 | 68 | public void setAppName(String appName) { 69 | this.appName = appName; 70 | } 71 | } 72 | -------------------------------------------------------------------------------- /src/main/java/com/gaoice/distributed/scheduling/aspect/ScheduledAspect.java: -------------------------------------------------------------------------------- 1 | package com.gaoice.distributed.scheduling.aspect; 2 | 3 | import com.gaoice.distributed.scheduling.DistributedHandler; 4 | import com.gaoice.distributed.scheduling.annotation.NonDistributed; 5 | import org.aspectj.lang.ProceedingJoinPoint; 6 | import org.aspectj.lang.annotation.Around; 7 | import org.aspectj.lang.annotation.Aspect; 8 | import org.aspectj.lang.reflect.MethodSignature; 9 | import org.slf4j.Logger; 10 | import org.slf4j.LoggerFactory; 11 | import org.springframework.scheduling.annotation.Scheduled; 12 | import org.springframework.scheduling.support.CronSequenceGenerator; 13 | import org.springframework.util.StringUtils; 14 | 15 | import java.util.Date; 16 | import java.util.concurrent.TimeUnit; 17 | 18 | /** 19 | * @author gaoice 20 | */ 21 | @Aspect 22 | public class ScheduledAspect { 23 | private static final Logger LOGGER = LoggerFactory.getLogger(ScheduledAspect.class); 24 | 25 | private final String appName; 26 | 27 | private final DistributedHandler distributedHandler; 28 | 29 | public ScheduledAspect(String appName, DistributedHandler distributedHandler) { 30 | this.appName = appName; 31 | this.distributedHandler = distributedHandler; 32 | } 33 | 34 | @Around("@annotation(org.springframework.scheduling.annotation.Scheduled)") 35 | public void around(ProceedingJoinPoint point) throws Throwable { 36 | Date now = new Date(); 37 | MethodSignature methodSignature = (MethodSignature) point.getSignature(); 38 | if (isDistributed(methodSignature)) { 39 | String cron = getCron(methodSignature); 40 | if (StringUtils.isEmpty(cron)) { 41 | LOGGER.warn("[distributed scheduling] only support cron like @Scheduled(cron=...)."); 42 | } else { 43 | long nextTime = new CronSequenceGenerator(cron).next(now).getTime(); 44 | String key = appName + "-" + getClassMethodName(methodSignature) + "-" + nextTime; 45 | long timeout = nextTime - now.getTime(); 46 | if (!distributedHandler.lock(key, timeout, TimeUnit.MILLISECONDS)) { 47 | LOGGER.info("[distributed scheduling][{}] another thread has scheduled, this thread will cancel.", key); 48 | return; 49 | } 50 | LOGGER.info("[distributed scheduling][{}] locked {} milliseconds.", key, timeout); 51 | } 52 | } 53 | point.proceed(); 54 | } 55 | 56 | public boolean isDistributed(MethodSignature methodSignature) { 57 | return methodSignature.getMethod().getAnnotation(NonDistributed.class) == null; 58 | } 59 | 60 | public String getCron(MethodSignature methodSignature) { 61 | return methodSignature.getMethod().getAnnotation(Scheduled.class).cron(); 62 | } 63 | 64 | public String getClassMethodName(MethodSignature methodSignature) { 65 | return methodSignature.getDeclaringTypeName() + "." + methodSignature.getName(); 66 | } 67 | } 68 | -------------------------------------------------------------------------------- /pom.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 4.0.0 5 | 6 | com.gaoice 7 | distributed-scheduling-spring-boot-starter 8 | 1.2 9 | jar 10 | 11 | distributed-scheduling-spring-boot-starter 12 | Spring @Scheduled enhanced for distributed scheduling 13 | https://github.com/gaoice/distributed-scheduling-spring-boot-starter 14 | 15 | 16 | 17 | The Apache License, Version 2.0 18 | http://www.apache.org/licenses/LICENSE-2.0.txt 19 | 20 | 21 | 22 | 23 | 24 | gaoice 25 | gaoice 26 | gaoice@qq.com 27 | 28 | 29 | 30 | 31 | https://github.com/gaoice/distributed-scheduling-spring-boot-starter 32 | scm:git:https://git@github.com/gaoice/distributed-scheduling-spring-boot-starter.git 33 | 34 | 35 | 36 | 37 | ossrh 38 | https://oss.sonatype.org/content/repositories/snapshots 39 | 40 | 41 | ossrh 42 | https://oss.sonatype.org/service/local/staging/deploy/maven2/ 43 | 44 | 45 | 46 | 47 | UTF-8 48 | UTF-8 49 | 1.8 50 | 1.8 51 | 52 | 2.2.2.RELEASE 53 | 54 | 55 | 56 | 57 | 58 | org.springframework.boot 59 | spring-boot-dependencies 60 | ${spring-boot.version} 61 | pom 62 | import 63 | 64 | 65 | 66 | 67 | 68 | 69 | org.slf4j 70 | slf4j-api 71 | 72 | 73 | org.springframework.boot 74 | spring-boot-starter-aop 75 | 76 | 77 | 78 | org.springframework.boot 79 | spring-boot-starter-data-redis 80 | 81 | 82 | 83 | org.springframework.boot 84 | spring-boot-configuration-processor 85 | true 86 | 87 | 88 | 89 | org.springframework.boot 90 | spring-boot-starter-web 91 | test 92 | 93 | 94 | org.springframework.boot 95 | spring-boot-starter-test 96 | test 97 | 98 | 99 | 100 | 101 | 102 | 103 | org.apache.maven.plugins 104 | maven-source-plugin 105 | 3.0.1 106 | 107 | 108 | attach-sources 109 | 110 | jar-no-fork 111 | 112 | 113 | 114 | 115 | 116 | maven-javadoc-plugin 117 | 3.0.1 118 | 119 | 120 | attach-javadoc 121 | 122 | jar 123 | 124 | 125 | 126 | 127 | 128 | maven-gpg-plugin 129 | 1.6 130 | 131 | 132 | sign-artifacts 133 | verify 134 | 135 | sign 136 | 137 | 138 | 139 | 140 | 141 | 142 | 143 | 144 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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