d event to listener instance of class [org.springframework.web.context.ContextLoaderListener]
        org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisUtil': Invocation of init method failed; nested exception is org.springframework.dao.InvalidDataAccessApiUsageException: READONLY You can't write against a read only slave.; nested exception is redis.clients.jedis.exceptions.JedisDataException: READONLY You can't write against a read only slave.
                at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:139)
                at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:419)
                at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1737)
                at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:576)
                at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:498)
                at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320)
                at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
                at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)
                at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
                at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:846)
                at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:863)
                at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546)
                at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:400)
                at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:291)
                at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:103)
                at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4689)
                at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5155)
                at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
                at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:743)
                at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:719)
                at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
                at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:970)
                at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1840)
                at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
                at java.util.concurrent.FutureTask.run(FutureTask.java:266)
                at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
                at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
                at java.lang.Thread.run(Thread.java:748)
        Caused by: org.springframework.dao.InvalidDataAccessApiUsageException: READONLY You can't write against a read only slave.; nested exception is redis.clients.jedis.exceptions.JedisDataException: READONLY You can't write against a read only slave.
                at org.springframework.data.redis.connection.jedis.JedisExceptionConverter.convert(JedisExceptionConverter.java:64)
                at org.springframework.data.redis.connection.jedis.JedisExceptionConverter.convert(JedisExceptionConverter.java:41)
                at org.springframework.data.redis.PassThroughExceptionTranslationStrategy.translate(PassThroughExceptionTranslationStrategy.java:44)
                at org.springframework.data.redis.FallbackExceptionTranslationStrategy.translate(FallbackExceptionTranslationStrategy.java:42)
                at org.springframework.data.redis.connection.jedis.JedisConnection.convertJedisAccessException(JedisConnection.java:142)
                at org.springframework.data.redis.connection.jedis.JedisKeyCommands.del(JedisKeyCommands.java:123)
                at org.springframework.data.redis.connection.DefaultedRedisConnection.del(DefaultedRedisConnection.java:69)
                at org.springframework.data.redis.core.RedisTemplate.lambda$delete$3(RedisTemplate.java:727)
                at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:224)
                at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:184)
                at org.springframework.data.redis.core.RedisTemplate.delete(RedisTemplate.java:727)
                at com.wdg.impl.RedisUtil.initMethod(RedisUtil.java:31)
                at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
                at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
                at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
                at java.lang.reflect.Method.invoke(Method.java:498)
                at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:363)
                at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:307)
                at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:136)
                ... 27 more
        Caused by: redis.clients.jedis.exceptions.JedisDataException: READONLY You can't write against a read only slave.
                at redis.clients.jedis.Protocol.processError(Protocol.java:130)
                at redis.clients.jedis.Protocol.process(Protocol.java:164)
                at redis.clients.jedis.Protocol.read(Protocol.java:218)
                at redis.clients.jedis.Connection.readProtocolWithCheckingBroken(Connection.java:341)
                at redis.clients.jedis.Connection.getIntegerReply(Connection.java:266)
                at redis.clients.jedis.BinaryJedis.del(BinaryJedis.java:298)
                at org.springframework.data.redis.connection.jedis.JedisKeyCommands.del(JedisKeyCommands.java:121)
                ... 40 more

問題描述：
啟動項目連接redis出現上面權限問題

解決辦法：
redis.conf

slave-read-only yes 修改成為 no

重新啟動redis

     systemctl restart redis