[英]No qualifying bean of type LockProvider while configuring Spring Scheduler with Shedlock
我正在尝试集成 Shedlock 以使我的 Spring 启动应用程序上的预定作业在多 pod 部署中无缝运行。
主要class如下:
@SpringBootApplication
@EnableScheduling
@EnableSchedulerLock(defaultLockAtMostFor = "60m", defaultLockAtLeastFor = "15m")
@ComponentScan
public class MyService {
public static void main(String[] args) {
SconeApp.run(MyService.class, args);
}
}
在 class 之后添加 Shedlock 配置调度程序:
import com.salesforce.tm.scheduler.MyScheduler;
import net.javacrumbs.shedlock.core.LockProvider;
import net.javacrumbs.shedlock.provider.jdbctemplate.JdbcTemplateLockProvider;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.core.JdbcTemplate;
@Configuration
public class LockProviderConfiguration {
@Bean
public LockProvider lockProvider(MyDbDataSource dataSource) {
return new JdbcTemplateLockProvider(
JdbcTemplateLockProvider.Configuration.builder()
.withJdbcTemplate(new JdbcTemplate(dataSource))
.build()
);
}
@Bean
public MyScheduler myScheduler(LockProvider lockProvider) {
return new MyScheduler();
}
}
MyDbDataSource class 如下:
@Component
public class MyDbDataSource implements InitializingBean {
public TcDbDataSource(..) {
super();
...
}
@Override
public void afterPropertiesSet() {
...
}
}
我的调度器class如下:
public class MyScheduler {
@Scheduled(cron = "*/1 * * * * *")
@SchedulerLock(name = "myTask",
lockAtMostFor = "${scheduling.my-job.lock-at-most}",
lockAtLeastFor = "${scheduling.my-joblock-at-least}")
public void myCronJob() throws InterruptedException {
LockAssert.assertLocked();
while(true) {
System.out.println("Test");
Thread.sleep(1000L);
}
}
}
启动应用程序时,出现以下错误:
org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'net.javacrumbs.shedlock.core.LockProvider' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1714)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1270)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1224)
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:884)
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:788)
我不明白我在这里错过了什么。
尝试重新定义您的 LockProvider bean
@Bean
public LockProvider lockProvider(DataSource dataSource) {
return new JdbcTemplateLockProvider(dataSource);
}
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