一、分布式鎖配置

（1）redis鎖

pom.xml

<dependency><groupId>net.javacrumbs.shedlock</groupId><artifactId>shedlock-spring</artifactId><version>2.5.0</version> </dependency><dependency><groupId>net.javacrumbs.shedlock</groupId><artifactId>shedlock-provider-redis-spring</artifactId><version>2.5.0</version> </dependency>

自動配置

@Configuration @EnableScheduling @EnableSchedulerLock(defaultLockAtMostFor = "PT30S") public class DataSourceConfig {@Beanpublic LockProvider scheduledLockConfiguration(@Autowired RedisConnectionFactory connectionFactory) {return new RedisLockProvider(connectionFactory);}}

（2）數據庫鎖

pom.xml

<dependency><groupId>net.javacrumbs.shedlock</groupId><artifactId>shedlock-spring</artifactId><version>0.16.1</version> </dependency><dependency><groupId>net.javacrumbs.shedlock</groupId><artifactId>shedlock-provider-jdbc-template</artifactId><version>0.16.1</version> </dependency>

?自動配置

@Configuration @EnableScheduling @EnableSchedulerLock(defaultLockAtMostFor = "PT30S") public class DataSourceConfig {@Beanpublic scheduledLockConfiguration(@Autowired DataSource dataSource) {return new JdbcTemplateLockProvider(dataSource);}}

?

二、定時任務配置

@Component public class CronTask {@Scheduled(cron="0 0/1 * * * ?")@SchedulerLock(name = "test-lock:testMethod", lockAtMostFor = 3 * 60 * 1000, lockAtLeastFor = 30 * 1000)public void testMethod(){//do something}}

?

總結

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