这是我的第一个问题,请原谅我,如果我说出问题的方式仍然需要改进
我目前正在开发一个Spring Boot Web应用程序,它使用Redis作为缓存来防止对外部API的过度调用 . 从这个意义上说,Spring实际上很好但不是必需品 .
项目结构如下
1.)一个持久性模块,包含编译spring-data-redis项目的DAO类,并使用带有 @Autowired
注释的RedisTemplate
示例RedisDao类(由于私有代码原因,我没有使用确切的实现):
@Autowired
private RedisTemplate redisTemplate
public AuthInfoDto createAuthInfo(Integer memberId, Integer expiry) {
//Some method to generate key
String key = createAuthKey(memberId)
redisTemplate.opsForValue().set(key, memberId)
}
然后使用gradle clean install构建该项目,以生成要由主项目导入的jar文件
2.)然后主项目编译持久性项目,并在此主项目中设置配置
@Configuration
@Lazy
public class RedisConfigure {
@Bean
@Lazy
public RedisTemplate<String, Integer> redisTemplate(JedisConnectionFactory jedisConnectionFactory) {
RedisTemplate<String, Integer> redisTemplate = new RedisTemplate<>();
redisTemplate.setConnectionFactory(jedisConnectionFactory)
redisTemplate.setKeySerializer(new StringRedisSerializer());
redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());
return redisTemplate;
}
}
问题是;当Sentinel不可用或Sentinel出现连接错误时 . Spring Boot应用程序无法启动
我已经尝试将 @Lazy
注释添加到所有bean和配置文件中,包括持久性模块中的那些但仍然无效 .
我注意到的是,如果JedisConnectionFactory在启动期间无法检测到任何Sentinel,则会自动抛出异常 .
我是否知道有什么方法可以防止spring boot在启动时尝试连接到Sentinel?
非常感谢你
EDIT 这是错误代码 . 至于JedisConnectionFactory Bean;我让spring-data-redis自动配置为我处理它所以我只是在我的application.yml文件中设置所需的属性
spring.redis:
pool:
max-idle: 10
min-idle: 5
sentinel:
master: redis-cluster
nodes: sentinelhost1:port1,sentinelhost2:port2,sentinelhost3:port3
ERROR
13:20:01.381 [restartedMain] ERROR org.springframework.boot.SpringApplication - Application startup failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisReferenceResolver': Cannot resolve reference to bean 'redisTemplate' while setting constructor argument; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'redisTemplate' defined in class path resource [sg/com/rakuten/rewards/rpg/api/domain/configure/RedisCacheConfigure.class]: Unsatisfied dependency expressed through method 'redisTemplate' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisConnectionFactory' defined in class path resource [org/springframework/boot/autoconfigure/data/redis/RedisAutoConfiguration$RedisConnectionConfiguration.class]: Invocation of init method failed; nested exception is redis.clients.jedis.exceptions.JedisConnectionException: All sentinels down, cannot determine where is redis-cluster master is running...
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:359)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
at org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:634)
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:145)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1193)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1095)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:303)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107)
at sg.com.rakuten.rewards.rpg.api.RPGApiApplication.main(RPGApiApplication.java:34)
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.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'redisTemplate' defined in class path resource [sg/com/rakuten/rewards/rpg/api/domain/configure/RedisCacheConfigure.class]: Unsatisfied dependency expressed through method 'redisTemplate' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisConnectionFactory' defined in class path resource [org/springframework/boot/autoconfigure/data/redis/RedisAutoConfiguration$RedisConnectionConfiguration.class]: Invocation of init method failed; nested exception is redis.clients.jedis.exceptions.JedisConnectionException: All sentinels down, cannot determine where is redis-cluster master is running...
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:749)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:467)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1067)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
... 26 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisConnectionFactory' defined in class path resource [org/springframework/boot/autoconfigure/data/redis/RedisAutoConfiguration$RedisConnectionConfiguration.class]: Invocation of init method failed; nested exception is redis.clients.jedis.exceptions.JedisConnectionException: All sentinels down, cannot determine where is redis-cluster master is running...
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1628)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:835)
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741)
... 36 common frames omitted
Caused by: redis.clients.jedis.exceptions.JedisConnectionException: All sentinels down, cannot determine where is redis-cluster master is running...
at redis.clients.jedis.JedisSentinelPool.initSentinels(JedisSentinelPool.java:180)
at redis.clients.jedis.JedisSentinelPool.<init>(JedisSentinelPool.java:95)
at redis.clients.jedis.JedisSentinelPool.<init>(JedisSentinelPool.java:76)
at org.springframework.data.redis.connection.jedis.JedisConnectionFactory.createRedisSentinelPool(JedisConnectionFactory.java:263)
at org.springframework.data.redis.connection.jedis.JedisConnectionFactory.createPool(JedisConnectionFactory.java:248)
at org.springframework.data.redis.connection.jedis.JedisConnectionFactory.afterPropertiesSet(JedisConnectionFactory.java:237)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624)
... 47 common frames omitted
1 回答
您看到的例外来自
JedisConnectionFactory.afterPropertiesSet()
. 您需要将所有与Redis相关的bean设置为@Lazy
,也是连接工厂 .您需要声明自己的
JedisConnectionFactory
bean . 或者,尝试使用Lettuce驱动程序,因为Lettuce尝试解决Redis服务器而非常懒惰 .