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SpringBoot 3连接Elasticsearch 8遇Connection Refused问题求助

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开发者阿泽
2026-8-8
SpringBoot 3连接Elasticsearch 8出现Connection Refused错误

我正尝试按照官方文档，在SpringBoot 3项目中连接Elasticsearch 8，但出现无详细信息的connection refused错误。

以下是我的配置：

@Configuration
@Slf4j
@EnableElasticsearchRepositories(basePackages = "com....elastic")
public class ElasticConfig {

    @Bean
    public ClientConfiguration clientConfiguration() {
    ClientConfiguration clientConfiguration = ClientConfiguration.builder()
                .connectedTo("192.168.19.23:9200")
                .usingSsl()
                .withConnectTimeout(Duration.ofSeconds(5))
                .withSocketTimeout(Duration.ofSeconds(3))
                .withBasicAuth("elastic", "abc")
                .build();
        return clientConfiguration;
    }
}

我的JDK中已配置SSL证书，项目能正常启动，但尝试向Elasticsearch保存数据时出现如下错误：

org.springframework.dao.DataAccessResourceFailureException: Connection refused
    at org.springframework.data.elasticsearch.client.elc.ElasticsearchExceptionTranslator.translateExceptionIfPossible(ElasticsearchExceptionTranslator.java:100)
    at org.springframework.data.elasticsearch.client.elc.ElasticsearchExceptionTranslator.translateException(ElasticsearchExceptionTranslator.java:62)
    at org.springframework.data.elasticsearch.client.elc.ElasticsearchTemplate.execute(ElasticsearchTemplate.java:540)
    at org.springframework.data.elasticsearch.client.elc.ElasticsearchTemplate.doIndex(ElasticsearchTemplate.java:213)
    at org.springframework.data.elasticsearch.core.AbstractElasticsearchTemplate.save(AbstractElasticsearchTemplate.java:204)
    at org.springframework.data.elasticsearch.repository.support.SimpleElasticsearchRepository.lambda$save$5(SimpleElasticsearchRepository.java:172)
    at org.springframework.data.elasticsearch.repository.support.SimpleElasticsearchRepository.executeAndRefresh(SimpleElasticsearchRepository.java:344)
    at org.springframework.data.elasticsearch.repository.support.SimpleElasticsearchRepository.save(SimpleElasticsearchRepository.java:172)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:568)
    at org.springframework.data.repository.core.support.RepositoryMethodInvoker$RepositoryFragmentMethodInvoker.lambda$new$0(RepositoryMethodInvoker.java:288)
    at org.springframework.data.repository.core.support.RepositoryMethodInvoker.doInvoke(RepositoryMethodInvoker.java:136)
    at org.springframework.data.repository.core.support.RepositoryMethodInvoker.invoke(RepositoryMethodInvoker.java:120)
    at org.springframework.data.repository.core.support.RepositoryComposition$RepositoryFragments.invoke(RepositoryComposition.java:516)
    at org.springframework.data.repository.core.support.RepositoryComposition.invoke(RepositoryComposition.java:285)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$ImplementationMethodExecutionInterceptor.invoke(RepositoryFactorySupport.java:628)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184)
    at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.doInvoke(QueryExecutorMethodInterceptor.java:168)
    at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.invoke(QueryExecutorMethodInterceptor.java:143)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184)
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:218)
    at jdk.proxy2/jdk.proxy2.$Proxy131.save(Unknown Source)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:568)
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:343)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:196)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:218)
    at jdk.proxy2/jdk.proxy2.$Proxy131.save(Unknown Source)
    at com...ServiceImpl.sendToElastic(ServiceImpl.java:171)
    at com...ServiceImpl.getIdAndSend(ServiceImpl.java:132)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:568)
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:343)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:196)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:752)
    at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:752)
    at org.springframework.aop.interceptor.AsyncExecutionInterceptor.lambda$invoke$0(AsyncExecutionInterceptor.java:115)
    at org.springframework.util.concurrent.FutureUtils.lambda$toSupplier$0(FutureUtils.java:74)
    at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
    at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: java.lang.RuntimeException: Connection refused
    at org.springframework.data.elasticsearch.client.elc.ElasticsearchExceptionTranslator.translateException(ElasticsearchExceptionTranslator.java:61)
    ... 56 common frames omitted
Caused by: java.net.ConnectException: Connection refused
    at org.elasticsearch.client.RestClient.extractAndWrapCause(RestClient.java:930)
    at org.elasticsearch.client.RestClient.performRequest(RestClient.java:300)
    at org.elasticsearch.client.RestClient.performRequest(RestClient.java:288)
    at co.elastic.clients.transport.rest_client.RestClientTransport.performRequest(RestClientTransport.java:147)
    at co.elastic.clients.elasticsearch.ElasticsearchClient.index(ElasticsearchClient.java:962)
    at org.springframework.data.elasticsearch.client.elc.ElasticsearchTemplate.lambda$doIndex$6(ElasticsearchTemplate.java:213)
    at org.springframework.data.elasticsearch.client.elc.ElasticsearchTemplate.execute(ElasticsearchTemplate.java:538)
    ... 55 common frames omitted
Caused by: java.net.ConnectException: Connection refused
    at java.base/sun.nio.ch.Net.pollConnect(Native Method)
    at java.base/sun.nio.ch.Net.pollConnectNow(Net.java:672)
    at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:946)
    at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEvent(DefaultConnectingIOReactor.java:174)
    at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEvents(DefaultConnectingIOReactor.java:148)
    at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor.execute(AbstractMultiworkerIOReactor.java:351)
    at org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager.execute(PoolingNHttpClientConnectionManager.java:221)
    at org.apache.http.impl.nio.client.CloseableHttpAsyncClientBase$1.run(CloseableHttpAsyncClientBase.java:64)
    ... 1 common frames omitted

我已反复检查URL、端口和凭证，请问该如何解决此问题？

解决方法

  • 基础网络连通性排查
    在项目部署机器上执行telnet 192.168.19.23 9200或者curl -v https://192.168.19.23:9200 -u elastic:abc，确认网络是否能通。如果连不通：

    • 检查Elasticsearch服务器防火墙是否放通9200端口；
    • 确认Elasticsearch是否绑定了正确IP：修改elasticsearch.yml里的network.host为0.0.0.0或指定可访问的IP，重启服务；
    • 排查机器间的路由是否正常。

  • SSL配置验证
    Elasticsearch 8默认开启SSL，证书问题也会导致连接失败：

    1. 用keytool -list -keystore $JAVA_HOME/jre/lib/security/cacerts检查JDK证书库中是否存在Elasticsearch的正确证书；
    2. 测试环境可临时关闭SSL：修改Elasticsearch的elasticsearch.yml，设置xpack.security.enabled: false和xpack.security.http.ssl.enabled: false，重启服务后去掉代码中的.usingSsl()配置。

  • SpringBoot配置细节检查

    1. 确保自定义ClientConfiguration被优先使用：在配置类的@Bean方法上添加@Primary注解，避免被自动配置覆盖；
    2. 开启调试日志：在application.yml中设置logging.level.org.springframework.data.elasticsearch.client: DEBUG，查看更详细的连接过程日志，定位是否有SSL握手失败等隐藏问题。

  • Elasticsearch运行状态确认
    在Elasticsearch服务器本地执行curl -u elastic:abc https://localhost:9200，确认服务本身能正常响应请求。如果本地正常远程不行，重点排查网络或IP绑定问题。

内容的提问来源于stack exchange，提问作者mahfuj asif

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最近更新时间：2026.08.08 17:01:24