使用springboot 连接Elasticsearch创建全文索引，总是报连接不上的问题，报错如下：
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'esContentService': Unsatisfied dependency expressed through field 'esContentRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'esContentRepository' defined in com.hascovision.idd.documenthub.elasticsearch.repository.EsContentRepository defined in @EnableElasticsearchRepositories declared on ElasticsearchRepositoriesRegistrar.EnableElasticsearchRepositoriesConfiguration: Invocation of init method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.elasticsearch.repository.support.SimpleElasticsearchRepository]: Constructor threw exception; nested exception is org.springframework.dao.DataAccessResourceFailureException: Connection refused: getsockopt; nested exception is java.lang.RuntimeException: Connection refused: getsockopt
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:659) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:639) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1431) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:953) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918) ~[spring-context-5.3.14.jar:5.3.14]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.14.jar:5.3.14]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.5.8.jar:2.5.8]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:765) ~[spring-boot-2.5.8.jar:2.5.8]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:445) ~[spring-boot-2.5.8.jar:2.5.8]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:338) ~[spring-boot-2.5.8.jar:2.5.8]
at com.hascovision.idd.documenthub.DocumenthubApp.main(DocumenthubApp.java:75) ~[classes/:na]
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[na:na]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.5.8.jar:2.5.8]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'esContentRepository' defined in com.hascovision.idd.documenthub.elasticsearch.repository.EsContentRepository defined in @EnableElasticsearchRepositories declared on ElasticsearchRepositoriesRegistrar.EnableElasticsearchRepositoriesConfiguration: Invocation of init method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.elasticsearch.repository.support.SimpleElasticsearchRepository]: Constructor threw exception; nested exception is org.springframework.dao.DataAccessResourceFailureException: Connection refused: getsockopt; nested exception is java.lang.RuntimeException: Connection refused: getsockopt
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1804) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:620) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1389) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1309) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:656) ~[spring-beans-5.3.14.jar:5.3.14]
... 21 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.elasticsearch.repository.support.SimpleElasticsearchRepository]: Constructor threw exception; nested exception is org.springframework.dao.DataAccessResourceFailureException: Connection refused: getsockopt; nested exception is java.lang.RuntimeException: Connection refused: getsockopt
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:224) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.data.repository.core.support.RepositoryFactorySupport.lambda$getTargetRepositoryViaReflection$5(RepositoryFactorySupport.java:543) ~[spring-data-commons-2.5.7.jar:2.5.7]
at java.base/java.util.Optional.map(Optional.java:260) ~[na:na]
at org.springframework.data.repository.core.support.RepositoryFactorySupport.getTargetRepositoryViaReflection(RepositoryFactorySupport.java:543) ~[spring-data-commons-2.5.7.jar:2.5.7]
at org.springframework.data.repository.core.support.RepositoryFactorySupport.getTargetRepositoryViaReflection(RepositoryFactorySupport.java:528) ~[spring-data-commons-2.5.7.jar:2.5.7]
at org.springframework.data.elasticsearch.repository.support.ElasticsearchRepositoryFactory.getTargetRepository(ElasticsearchRepositoryFactory.java:74) ~[spring-data-elasticsearch-4.2.7.jar:4.2.7]
at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:319) ~[spring-data-commons-2.5.7.jar:2.5.7]
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.lambda$afterPropertiesSet$5(RepositoryFactoryBeanSupport.java:323) ~[spring-data-commons-2.5.7.jar:2.5.7]
at org.springframework.data.util.Lazy.getNullable(Lazy.java:230) ~[spring-data-commons-2.5.7.jar:2.5.7]
at org.springframework.data.util.Lazy.get(Lazy.java:114) ~[spring-data-commons-2.5.7.jar:2.5.7]
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:329) ~[spring-data-commons-2.5.7.jar:2.5.7]
at org.springframework.data.elasticsearch.repository.support.ElasticsearchRepositoryFactoryBean.afterPropertiesSet(ElasticsearchRepositoryFactoryBean.java:69) ~[spring-data-elasticsearch-4.2.7.jar:4.2.7]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1863) ~[spring-beans-5.3.14.jar:5.3.14]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1800) ~[spring-beans-5.3.14.jar:5.3.14]
... 31 common frames omitted
Caused by: org.springframework.dao.DataAccessResourceFailureException: Connection refused: getsockopt; nested exception is java.lang.RuntimeException: Connection refused: getsockopt
at org.springframework.data.elasticsearch.core.ElasticsearchExceptionTranslator.translateExceptionIfPossible(ElasticsearchExceptionTranslator.java:75) ~[spring-data-elasticsearch-4.2.7.jar:4.2.7]
at org.springframework.data.elasticsearch.core.ElasticsearchRestTemplate.translateException(ElasticsearchRestTemplate.java:402) ~[spring-data-elasticsearch-4.2.7.jar:4.2.7]
at org.springframework.data.elasticsearch.core.ElasticsearchRestTemplate.execute(ElasticsearchRestTemplate.java:385) ~[spring-data-elasticsearch-4.2.7.jar:4.2.7]
at org.springframework.data.elasticsearch.core.DefaultIndexOperations.doExists(DefaultIndexOperations.java:107) ~[spring-data-elasticsearch-4.2.7.jar:4.2.7]
at org.springframework.data.elasticsearch.core.AbstractDefaultIndexOperations.exists(AbstractDefaultIndexOperations.java:141) ~[spring-data-elasticsearch-4.2.7.jar:4.2.7]
at org.springframework.data.elasticsearch.repository.support.SimpleElasticsearchRepository.<init>(SimpleElasticsearchRepository.java:93) ~[spring-data-elasticsearch-4.2.7.jar:4.2.7]
at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:62) ~[na:na]
at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:502) ~[na:na]
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486) ~[na:na]
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:211) ~[spring-beans-5.3.14.jar:5.3.14]
... 44 common frames omitted
Caused by: java.lang.RuntimeException: Connection refused: getsockopt
at org.springframework.data.elasticsearch.core.ElasticsearchRestTemplate.translateException(ElasticsearchRestTemplate.java:400) ~[spring-data-elasticsearch-4.2.7.jar:4.2.7]
... 52 common frames omitted
Caused by: java.net.ConnectException: Connection refused: getsockopt
at org.elasticsearch.client.RestClient.extractAndWrapCause(RestClient.java:880) ~[elasticsearch-rest-client-7.12.1.jar:7.12.1]
at org.elasticsearch.client.RestClient.performRequest(RestClient.java:283) ~[elasticsearch-rest-client-7.12.1.jar:7.12.1]
at org.elasticsearch.client.RestClient.performRequest(RestClient.java:270) ~[elasticsearch-rest-client-7.12.1.jar:7.12.1]
at org.elasticsearch.client.RestHighLevelClient.internalPerformRequest(RestHighLevelClient.java:1654) ~[elasticsearch-rest-high-level-client-7.12.1.jar:7.12.1]
at org.elasticsearch.client.RestHighLevelClient.performRequest(RestHighLevelClient.java:1639) ~[elasticsearch-rest-high-level-client-7.12.1.jar:7.12.1]
at org.elasticsearch.client.IndicesClient.exists(IndicesClient.java:963) ~[elasticsearch-rest-high-level-client-7.12.1.jar:7.12.1]
at org.springframework.data.elasticsearch.core.DefaultIndexOperations.lambda$doExists$2(DefaultIndexOperations.java:107) ~[spring-data-elasticsearch-4.2.7.jar:4.2.7]
at org.springframework.data.elasticsearch.core.ElasticsearchRestTemplate.execute(ElasticsearchRestTemplate.java:383) ~[spring-data-elasticsearch-4.2.7.jar:4.2.7]
... 51 common frames omitted
Caused by: java.net.ConnectException: Connection refused: getsockopt
at java.base/sun.nio.ch.Net.pollConnect(Native Method) ~[na:na]
at java.base/sun.nio.ch.Net.pollConnectNow(Net.java:682) ~[na:na]
at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:973) ~[na:na]
at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEvent(DefaultConnectingIOReactor.java:174) ~[httpcore-nio-4.4.15.jar:4.4.15]
at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEvents(DefaultConnectingIOReactor.java:148) ~[httpcore-nio-4.4.15.jar:4.4.15]
at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor.execute(AbstractMultiworkerIOReactor.java:351) ~[httpcore-nio-4.4.15.jar:4.4.15]
at org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager.execute(PoolingNHttpClientConnectionManager.java:221) ~[httpasyncclient-4.1.5.jar:4.1.5]
at org.apache.http.impl.nio.client.CloseableHttpAsyncClientBase$1.run(CloseableHttpAsyncClientBase.java:64) ~[httpasyncclient-4.1.5.jar:4.1.5]
at java.base/java.lang.Thread.run(Thread.java:1583) ~[na:na]
Exception in thread "SpringApplicationShutdownHook" java.util.ConcurrentModificationException
at java.base/java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1095)
at java.base/java.util.ArrayList$Itr.next(ArrayList.java:1049)
at ch.qos.logback.classic.LoggerContext.cancelScheduledTasks(LoggerContext.java:232)
at ch.qos.logback.classic.LoggerContext.reset(LoggerContext.java:225)
at ch.qos.logback.classic.LoggerContext.stop(LoggerContext.java:348)
at org.springframework.boot.logging.logback.LogbackLoggingSystem.lambda$getShutdownHandler$0(LogbackLoggingSystem.java:284)
at java.base/java.lang.Iterable.forEach(Iterable.java:75)
at org.springframework.boot.SpringApplicationShutdownHook.run(SpringApplicationShutdownHook.java:108)
at java.base/java.lang.Thread.run(Thread.java:1583)代码里面引用配置
<!-- Spring Data Elasticsearch -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-elasticsearch</artifactId>
<!--<version>3.4.5</version>-->
<version>2.7.11</version>
</dependency>网上有帖子说使用了老版本的spring的配置，我的spring是新版本，
spirng 配置：
spring:
elasticsearch:
uris: http://1XX.XX.XX.XXX:9200使用cur 工具查看ES情况如下：
C:\Users\jianjuns>curl http://1XX.XX.XX.XXX:9200
{
"name" : "6162a9496e86",
"cluster_name" : "docker-cluster",
"cluster_uuid" : "guNB2UX6S2O46RjuTwmbkw",
"version" : {
"number" : "7.16.1",
"build_flavor" : "default",
"build_type" : "docker",
"build_hash" : "5b38441b16b1ebb16a27c107a4c3865776e20c53",
"build_date" : "2021-12-11T00:29:38.865893768Z",
"build_snapshot" : false,
"lucene_version" : "8.10.1",
"minimum_wire_compatibility_version" : "6.8.0",
"minimum_index_compatibility_version" : "6.0.0-beta1"
},
"tagline" : "You Know, for Search"
}说明网络是通畅的，ES服务也是启动并且可以访问的。
最后发行还是配置方式问题，正确的springboot配置方式是：
spring:
elasticsearch:
rest:
uris: http://1XX.XX.XX.XXX:9200不知道是kimi，或者通义千问的错误，还是社区某位大聪明写错了信息，导致我查到的资料都是错误的。
最后再强调一遍，springboot连接elasticsearch正确的配置方式是：
spring:
elasticsearch:
rest:
uris: http://localhost:9200 # Elasticsearch 实例地址
username: your_username # 如果需要认证，请提供用户名
password: your_password # 如果需要认证，请提供密码