No qualifying bean of type 'net.javacrumbs.shedlock.core.LockProvider' available: expected at 的解决办法

向右看齐 2023-06-25 06:20 53阅读 0赞

> ### 问题概述 ###

在分布式微服务中，由于部署的是多实例，消息来了之后，为了保证在多实例的情况下在同一时刻，只能由一个定时任务来消费，所以，这儿就使用到了Spring Boot中的一款超好用的轻量级分布式锁 ShedLock 来实现分布式锁的情况，但是在SpringBoot分布式项目中集成ShedLock锁时遇到的一个问题 “ No qualifying bean of type 'net.javacrumbs.shedlock.core.LockProvider' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: \{@org.springframework.context.annotation.Lazy(value=true)\} ”，如下图：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hlbGxvX1dvcmxkX1FXUA_size_16_color_FFFFFF_t_70][]

异常详细信息如下：

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: {@org.springframework.context.annotation.Lazy(value=true)}
    	at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1506)
    	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1101)
    	at org.springframework.context.annotation.ContextAnnotationAutowireCandidateResolver$1.getTarget(ContextAnnotationAutowireCandidateResolver.java:90)
    	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:193)
    	at com.sun.proxy.$Proxy104.lock(Unknown Source)
    	at net.javacrumbs.shedlock.core.DefaultLockingTaskExecutor.executeWithLock(DefaultLockingTaskExecutor.java:53)
    	at net.javacrumbs.shedlock.core.DefaultLockingTaskExecutor.executeWithLock(DefaultLockingTaskExecutor.java:42)
    	at net.javacrumbs.shedlock.core.DefaultLockManager.executeWithLock(DefaultLockManager.java:52)
    	at net.javacrumbs.shedlock.core.LockableRunnable.run(LockableRunnable.java:37)
    	at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
    	at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:93)
    	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    	at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266)
    	at java.util.concurrent.FutureTask.run(FutureTask.java)
    	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    	at java.lang.Thread.run(Thread.java:748)
    
    2019-12-26 17:33:00.003 ERROR 18016 --- [taskScheduler-5] o.s.s.s.TaskUtils$LoggingErrorHandler    : Unexpected error occurred in scheduled task.

> ### 解决办法 ###

这个是由于版本过高导致的，降低版本即可解决！

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hlbGxvX1dvcmxkX1FXUA_size_16_color_FFFFFF_t_70 1][]

版本兼容更新没更上导致的，最开始我使用的是4.x的，然后经过细微的调整，改到3.x版本就可以了！！！

--------------------

好了，关于 No qualifying bean of type 'net.javacrumbs.shedlock.core.LockProvider' available: expected at 的解决办法 就写到这儿了，如果还有什么疑问或遇到什么问题欢迎扫码提问，也可以给我留言哦，我会一一详细的解答的。   
歇后语：“ 共同学习，共同进步 ”，也希望大家多多关注CSND的IT社区。

--------------------

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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hlbGxvX1dvcmxkX1FXUA_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20191226212957986.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hlbGxvX1dvcmxkX1FXUA==,size_16,color_FFFFFF,t_70

No qualifying bean of type 'net.javacrumbs.shedlock.core.LockProvider' available: expected at 的解决办法

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