错误：
org.springframework.data.redis.RedisConnectionFailureException: Unknown reply: a; nested exception is redis.clients.jedis.exceptions.JedisConnectionException: Unknown reply: a
at org.springframework.data.redis.connection.jedis.JedisExceptionConverter.convert(JedisExceptionConverter.java:67)
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:181)
at org.springframework.data.redis.connection.jedis.JedisHashCommands.convertJedisAccessException(JedisHashCommands.java:433)
at org.springframework.data.redis.connection.jedis.JedisHashCommands.hGetAll(JedisHashCommands.java:196)
at org.springframework.data.redis.connection.DefaultedRedisConnection.hGetAll(DefaultedRedisConnection.java:862)
at org.springframework.data.redis.core.DefaultHashOperations.lambda$entries$12(DefaultHashOperations.java:231)
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.AbstractOperations.execute(AbstractOperations.java:95)
at org.springframework.data.redis.core.DefaultHashOperations.entries(DefaultHashOperations.java:231)
at com.nec.edgedisplay.common.doatier.redis.services.impl.DemographicRedisServiceImpl.findAll(DemographicRedisServiceImpl.java:88)
at com.nec.edgedisplay.common.doatier.redis.services.impl.DemographicRedisServiceImpl$$FastClassBySpringCGLIB$$5cda2f2d.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:746)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688)
at com.nec.edgedisplay.common.doatier.redis.services.impl.DemographicRedisServiceImpl$$EnhancerBySpringCGLIB$$25b48e11.findAll(<generated>)
at com.nec.edgedisplay.common.biztier.services.impl.DemographicServiceImpl.sendDataToEventHub(DemographicServiceImpl.java:67)
at com.nec.edgedisplay.da.scheduler.EventHubScheduler.scheduleDemographicCacheTransferToEventHub(EventHubScheduler.java:60)
at sun.reflect.GeneratedMethodAccessor71.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:65)
at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: redis.clients.jedis.exceptions.JedisConnectionException: Unknown reply: a
at redis.clients.jedis.Protocol.process(Protocol.java:164)
at redis.clients.jedis.Protocol.read(Protocol.java:215)
at redis.clients.jedis.Connection.readProtocolWithCheckingBroken(Connection.java:340)
at redis.clients.jedis.Connection.getBinaryMultiBulkReply(Connection.java:276)
at redis.clients.jedis.BinaryJedis.hgetAll(BinaryJedis.java:1028)
at org.springframework.data.redis.connection.jedis.JedisHashCommands.hGetAll(JedisHashCommands.java:194)
... 29 common frames omitted
下面是我的代码：
@Configuration
public class RedisConnector {
private static final Logger LOGGER = LoggerFactory.getLogger(RedisConnector.class);
/** The host name. */
@Value("${spring.redis.host}")
private String hostName;
/** The port. */
@Value("${spring.redis.port}")
private int port;
/**
* Jedis connection factory.
*
* @return the jedis connection factory
*/
@Bean
JedisConnectionFactory jedisConnectionFactory() {
JedisConnectionFactory jedisConnectionFactory = null;
try {
RedisStandaloneConfiguration redisStandaloneConfiguration = new RedisStandaloneConfiguration(hostName,
port);
jedisConnectionFactory = new JedisConnectionFactory(redisStandaloneConfiguration);
jedisConnectionFactory.getPoolConfig().setMaxTotal(128);
jedisConnectionFactory.getPoolConfig().setMaxIdle(128);
} catch (RedisConnectionFailureException e) {
LOGGER.error("Connection break with redis " + e.getMessage());
}
return jedisConnectionFactory;
}
/**
* Redis template.
*
* @return the redis template
*/
@Bean
public RedisTemplate<String, Object> redisTemplate() {
final RedisTemplate<String, Object> template = new RedisTemplate<String, Object>();
template.setConnectionFactory(jedisConnectionFactory());
template.setValueSerializer(new GenericToStringSerializer<Object>(Object.class));
template.setEnableTransactionSupport(true);
return template;
}
}
-------------------------------------------------------------------------
@Repository
public class CrowdCountRedisServiceImpl implements ICrowdCountRedisService {
private static final Logger LOGGER = LoggerFactory.getLogger(CrowdCountRedisServiceImpl.class);
/** The Constant KEY. */
private static final String KEY = CrowdCount.class.getName();
/** The redis template. */
private RedisTemplate<String, Object> redisTemplate;
/** The hash operations. */
private HashOperations<String, Long, CrowdCount> hashOperations;
/**
* Instantiates a new crowd count redis service impl.
*
* @param redisTemplate the redis template
*/
@Autowired
public CrowdCountRedisServiceImpl(RedisTemplate<String, Object> redisTemplate) {
this.redisTemplate = redisTemplate;
}
/**
* Inits the rest template.
*/
@PostConstruct
private void init(){
hashOperations = redisTemplate.opsForHash();
}
@Override
public void save(CrowdCount crowdCount) {
LOGGER.info("Inside save method of redis for crowd count");
if(crowdCount != null){
hashOperations.put(KEY, crowdCount.getDataStoreId(), crowdCount);
LOGGER.info("CrowdCount object saved in redis is --------- >"+crowdCount.toString());
}
else{
LOGGER.error("CrowdCount object is null");
}
}
@Override
public CrowdCount find(Long id) {
if(id != null){
return hashOperations.get(KEY, id);
}else{
LOGGER.error("Id is missing");
return null;
}
}
/* (non-Javadoc)
* @see
*/
@Override
public Map<Long, CrowdCount> findAll() {
return hashOperations.entries(KEY);
}
@Override
public void update(CrowdCount crowdCount) {
if(crowdCount != null){
hashOperations.put(KEY, crowdCount.getDataStoreId(), crowdCount);
}else{
LOGGER.error("Object to be updated can not be null");
}
}
@Override
public void deleteAll() {
hashOperations.delete(KEY);
}
/* (non-Javadoc)
* @see
*/
@Override
public void deleteById(Long id) {
if(id != null){
hashOperations.delete(KEY, id);
}else{
LOGGER.error("Id can not be null");
}
}
}
所以像上面的服务一样，我有多个服务经常与redis交互，但是运行几天后我最终遇到了上述异常，所以为了解决这个问题，我必须刷新redis缓存并重新启动jar，这让我每次都丢失数据时间。配置：java 8，Redistemplate with spring boot 和 Jedis 2.9.0