摘要：
在SpringBoot@RequestMapping（“/del/｛key｝”）publicStringdel（@PathVariable（“key”）Stringkey）｛try｛//当该键不存在时，异常redisTemplate.delete（key）；return“Success”；｝将不会引发catch（Exceptione）｛returne.getMessage
Spring Boot中Jedis几个api返回值的确认
@RequestMapping("/del/{key}")
public String del(@PathVariable("key") String key) {
try {
//键不存在时，也不会抛异常
redisTemplate.delete(key);
return "Success";
} catch (Exception e) {
return e.getMessage();
}
}RedisTemplate如果是按以下设置的话，直接对String类型使用get方法获取值时，会报以下的错。原因是存放的数据是经过Serialize的。deserialize就是会报错。网上给一个解决办法是使用get(0,-1).
但是，这种场景下，不能使用increment方法，因为存放的值是经过Serialize的，不是数字了，不能increment
这种场景可以使用StringRedisTemplate ，如上例所示
org.springframework.data.redis.serializer.SerializationException : Cannot deserialize; nested exception is org.springframework.core.serializer.support.SerializationFailedException: Failed to deserialize payload. Is the byte array a result of corresponding serialization for DefaultDeserializer?; nested exception is java.io.EOFException
RedisTemplate<StringRedisSerializer, Serializable> rt = new RedisTemplate<>(); rt.setConnectionFactory(jedisConnectionFactory()); JdkSerializationRedisSerializer jdkSerializationRedisSerializer = new JdkSerializationRedisSerializer(); rt.setKeySerializer(new StringRedisSerializer()); rt.setValueSerializer(jdkSerializationRedisSerializer);
package com.rest; import com.fasterxml.jackson.core.JsonProcessingException; import com.fasterxml.jackson.databind.ObjectMapper; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.data.redis.connection.DataType; import org.springframework.data.redis.core.RedisTemplate; import org.springframework.data.redis.core.StringRedisTemplate; import org.springframework.util.StringUtils; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import java.util.ArrayList; import java.util.Arrays; import java.util.Collection; import java.util.List; @RestController public class TestRedisTemplateOperation { @Autowired private RedisTemplate redisTemplate; @Autowired private StringRedisTemplate stringRedisTemplate; @RequestMapping("/add") public String set() { String key = "mykey"; stringRedisTemplate.boundValueOps(key).increment(1); return key; } @RequestMapping("/get") public String get() { String key = "mykey"; //如果key不存在时，Jedis会返回空字符串（key中无值时，redis会删除这个key） return stringRedisTemplate.boundValueOps(key).get(); } @RequestMapping("/getList") public String getList() { String key = "myList"; //如果key不存在时，Jedis会返回空集合（key中无值时，redis会删除这个key）。这种场景的返回值为"[]" return redisTemplate.boundListOps(key).range(0, -1).toString(); } @RequestMapping("/setList/{element}") public void setList(@PathVariable("element") String element) { String key = "myList"; redisTemplate.boundListOps(key).leftPush(element); } /** * [null, null, null, null, null]true;true;true;true;true; * hash不存在时的Operation是否为null:false * hash不存在，或hash存在但Key不存在时，删除时也不会抛异常 * * @return */ @RequestMapping("/getHash") public String getHash() { String key = "myHash"; Collection collection = Arrays.asList(1, 2, 3, 4, 5); //如果Hash不存在时，Jedis会给每个field返回一个null;存在的field会返回相关的值 //下例中会返回 [null, null, null, null, null]true;true;true;true;true; List list = redisTemplate.boundHashOps(key).multiGet(collection); String result = list.toString(); for (Object value : list) { result = result + (value == null) + ";"; } redisTemplate.delete(key); result = result + " hash不存在时的Operation是否为null:" + (redisTemplate.boundHashOps(key) == null); //删除hash中不存在的key时，是否会抛异常 String tmpKey = "myHash2"; redisTemplate.boundHashOps(tmpKey).delete("notExistKey"); redisTemplate.boundHashOps(tmpKey).put("key2-hash", "value2-hash"); redisTemplate.boundHashOps(tmpKey).delete("notExistKey"); result = result + " hash不存在，或hash存在但Key不存在时，删除时也不会抛异常"; return result; } @RequestMapping("/setHash/{field}/{value}") public void setHash(@PathVariable("field") String field, @PathVariable("value") String value) { String key = "myHash"; //执行hmset myHash 1 value1后 //mget的返回值为[value1, null, null, null, null]false;true;true;true;true; redisTemplate.boundHashOps(key).put(field, value); } /** * 存放在Redis中的返回值： * {"keyWithNullValue":null,"keyEmptyArrayList":[],"key2":"key2"} */ @RequestMapping("/set/hash/null") public void setHasWithNullValue() { String key = "myhashWithNull"; redisTemplate.boundHashOps(key).put("keyWithNullValue", null); redisTemplate.boundHashOps(key).put("keyEmptyArrayList", new ArrayList<>()); redisTemplate.boundHashOps(key).put("key2", "key2"); } @RequestMapping("/redis/{key}") public String getRedisDataForkey(@PathVariable("key") String key) throws JsonProcessingException { if (!StringUtils.isEmpty(key) && redisTemplate.hasKey(key)) { ObjectMapper objectMapper = new ObjectMapper(); DataType dataType = redisTemplate.type(key); String type = dataType.code(); if ("string".equals(type)) { Object _obj = redisTemplate.opsForValue().get(key); return "string：" + objectMapper.writeValueAsString(_obj); } if ("list".equals(type)) { Object _obj = redisTemplate.boundListOps(key).range(0, -1); return "list：" + objectMapper.writeValueAsString(_obj); } if ("set".equals(type)) { Object _obj = redisTemplate.boundSetOps(key).members(); return "set：" + objectMapper.writeValueAsString(_obj); } if ("zset".equals(type)) { Object _obj = redisTemplate.boundZSetOps(key).range(0, -1); return "zset：" + objectMapper.writeValueAsString(_obj); } if ("hash".equals(type)) { Object _obj = redisTemplate.boundHashOps(key).entries(); return "Hash：" + objectMapper.writeValueAsString(_obj); } if ("none".equals(type)) { return "none："; } } return "no key"; } }
org.springframework.data.redis.core.RedisConnectionUtils
private static void potentiallyRegisterTransactionSynchronisation(RedisConnectionHolder connHolder, final RedisConnectionFactory factory) { if (isActualNonReadonlyTransactionActive()) { if (!connHolder.isTransactionSyncronisationActive()) { connHolder.setTransactionSyncronisationActive(true); RedisConnection conn = connHolder.getConnection(); conn.multi();//此处设置mutl TransactionSynchronizationManager.registerSynchronization(new RedisTransactionSynchronizer(connHolder, conn, factory)); } } }
org.springframework.data.redis.connection.jedis.JedisConnection
public void multi() { if (isQueueing()) { return; } try { if (isPipelined()) { pipeline.multi(); return; } this.transaction = jedis.multi(); } catch (Exception ex) { throw convertJedisAccessException(ex); } }
redis.clients.jedis.BinaryJedis
public Transaction multi() { client.multi(); transaction = new Transaction(client); return transaction; }
org.springframework.data.redis.RedisSystemException: Error in execution; nested exception is io.lettuce.core.RedisCommandExecutionException: ERR value is not an integer or out of range at org.springframework.data.redis.connection.lettuce.LettuceExceptionConverter.convert(LettuceExceptionConverter.java:54) ~[spring-data-redis-2.1.6.RELEASE.jar:2.1.6.RELEASE] at org.springframework.data.redis.connection.lettuce.LettuceExceptionConverter.convert(LettuceExceptionConverter.java:52) ~[spring-data-redis-2.1.6.RELEASE.jar:2.1.6.RELEASE] at org.springframework.data.redis.connection.lettuce.LettuceExceptionConverter.convert(LettuceExceptionConverter.java:41) ~[spring-data-redis-2.1.6.RELEASE.jar:2.1.6.RELEASE] at org.springframework.data.redis.PassThroughExceptionTranslationStrategy.translate(PassThroughExceptionTranslationStrategy.java:44) ~[spring-data-redis-2.1.6.RELEASE.jar:2.1.6.RELEASE] at org.springframework.data.redis.FallbackExceptionTranslationStrategy.translate(FallbackExceptionTranslationStrategy.java:42) ~[spring-data-redis-2.1.6.RELEASE.jar:2.1.6.RELEASE] at org.springframework.data.redis.connection.lettuce.LettuceConnection.convertLettuceAccessException(LettuceConnection.java:268) ~[spring-data-redis-2.1.6.RELEASE.jar:2.1.6.RELEASE] at org.springframework.data.redis.connection.lettuce.LettuceStringCommands.convertLettuceAccessException(LettuceStringCommands.java:799) ~[spring-data-redis-2.1.6.RELEASE.jar:2.1.6.RELEASE] at org.springframework.data.redis.connection.lettuce.LettuceStringCommands.incr(LettuceStringCommands.java:332) ~[spring-data-redis-2.1.6.RELEASE.jar:2.1.6.RELEASE] at org.springframework.data.redis.connection.DefaultedRedisConnection.incr(DefaultedRedisConnection.java:323) ~[spring-data-redis-2.1.6.RELEASE.jar:2.1.6.RELEASE] at org.springframework.data.redis.core.DefaultValueOperations.lambda$increment$0(DefaultValueOperations.java:87) ~[spring-data-redis-2.1.6.RELEASE.jar:2.1.6.RELEASE] at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:224) ~[spring-data-redis-2.1.6.RELEASE.jar:2.1.6.RELEASE] at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:184) ~[spring-data-redis-2.1.6.RELEASE.jar:2.1.6.RELEASE] at org.springframework.data.redis.core.AbstractOperations.execute(AbstractOperations.java:95) ~[spring-data-redis-2.1.6.RELEASE.jar:2.1.6.RELEASE] at org.springframework.data.redis.core.DefaultValueOperations.increment(DefaultValueOperations.java:87) ~[spring-data-redis-2.1.6.RELEASE.jar:2.1.6.RELEASE] at com.zkh360.general.sms.service.impl.SMSCheckIPServiceImpl.check(SMSCheckIPServiceImpl.java:43) ~[classes/:na] at com.zkh360.general.sms.cache.impl.SmsCacheServiceImpl.cacheSmsCode(SmsCacheServiceImpl.java:62) ~[classes/:na] at com.zkh360.general.sms.service.impl.AliSMSServiceImpl.sendCaptchaSMS(AliSMSServiceImpl.java:192) ~[classes/:na] at com.zkh360.general.sms.controller.BizSMSController.sendCommonCaptchaSMS(BizSMSController.java:60) ~[classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_191] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_191] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_191] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_191] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:189) ~[spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) ~[spring-webmvc-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:892) ~[spring-webmvc-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:797) ~[spring-webmvc-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038) ~[spring-webmvc-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942) ~[spring-webmvc-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005) [spring-webmvc-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:908) [spring-webmvc-5.1.6.RELEASE.jar:5.1.6.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:660) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882) [spring-webmvc-5.1.6.RELEASE.jar:5.1.6.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) [tomcat-embed-websocket-9.0.17.jar:9.0.17] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) [spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92) [spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) [spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) [spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.1.6.RELEASE.jar:5.1.6.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:200) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:834) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1415) [tomcat-embed-core-9.0.17.jar:9.0.17] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.17.jar:9.0.17] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_191] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_191] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.17.jar:9.0.17] at java.lang.Thread.run(Thread.java:748) [na:1.8.0_191] Caused by: io.lettuce.core.RedisCommandExecutionException: ERR value is not an integer or out of range at io.lettuce.core.ExceptionFactory.createExecutionException(ExceptionFactory.java:135) ~[lettuce-core-5.1.6.RELEASE.jar:na] at io.lettuce.core.ExceptionFactory.createExecutionException(ExceptionFactory.java:108) ~[lettuce-core-5.1.6.RELEASE.jar:na] at io.lettuce.core.protocol.AsyncCommand.completeResult(AsyncCommand.java:120) ~[lettuce-core-5.1.6.RELEASE.jar:na] at io.lettuce.core.protocol.AsyncCommand.complete(AsyncCommand.java:111) ~[lettuce-core-5.1.6.RELEASE.jar:na] at io.lettuce.core.protocol.CommandHandler.complete(CommandHandler.java:646) ~[lettuce-core-5.1.6.RELEASE.jar:na] at io.lettuce.core.protocol.CommandHandler.decode(CommandHandler.java:604) ~[lettuce-core-5.1.6.RELEASE.jar:na] at io.lettuce.core.protocol.CommandHandler.channelRead(CommandHandler.java:556) ~[lettuce-core-5.1.6.RELEASE.jar:na] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:359) ~[netty-transport-4.1.34.Final.jar:4.1.34.Final] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:345) ~[netty-transport-4.1.34.Final.jar:4.1.34.Final] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:337) ~[netty-transport-4.1.34.Final.jar:4.1.34.Final] at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86) ~[netty-transport-4.1.34.Final.jar:4.1.34.Final] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:359) ~[netty-transport-4.1.34.Final.jar:4.1.34.Final] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:345) ~[netty-transport-4.1.34.Final.jar:4.1.34.Final] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:337) ~[netty-transport-4.1.34.Final.jar:4.1.34.Final] at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86) ~[netty-transport-4.1.34.Final.jar:4.1.34.Final] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:359) ~[netty-transport-4.1.34.Final.jar:4.1.34.Final] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:345) ~[netty-transport-4.1.34.Final.jar:4.1.34.Final] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:337) ~[netty-transport-4.1.34.Final.jar:4.1.34.Final] at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1408) ~[netty-transport-4.1.34.Final.jar:4.1.34.Final] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:359) ~[netty-transport-4.1.34.Final.jar:4.1.34.Final] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:345) ~[netty-transport-4.1.34.Final.jar:4.1.34.Final] at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:930) ~[netty-transport-4.1.34.Final.jar:4.1.34.Final] at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163) ~[netty-transport-4.1.34.Final.jar:4.1.34.Final] at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:677) ~[netty-transport-4.1.34.Final.jar:4.1.34.Final] at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:612) ~[netty-transport-4.1.34.Final.jar:4.1.34.Final] at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:529) ~[netty-transport-4.1.34.Final.jar:4.1.34.Final] at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:491) ~[netty-transport-4.1.34.Final.jar:4.1.34.Final] at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:905) ~[netty-common-4.1.34.Final.jar:4.1.34.Final] at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.34.Final.jar:4.1.34.Final] ... 1 common frames omitted