Spring Boot 2.1.x actuator 连接 ElasticSearch Connection refused: no further information 异常处理...

原文链接： https://my.oschina.net/duanvincent/blog/3060768

java.net.ConnectException: Connection refused: no further information
	at org.elasticsearch.client.RestClient$SyncResponseListener.get(RestClient.java:943) ~[elasticsearch-rest-client-6.4.3.jar:6.6.1]
	at org.elasticsearch.client.RestClient.performRequest(RestClient.java:227) ~[elasticsearch-rest-client-6.4.3.jar:6.6.1]
	at org.springframework.boot.actuate.elasticsearch.ElasticsearchRestHealthIndicator.doHealthCheck(ElasticsearchRestHealthIndicator.java:61) ~[spring-boot-actuator-2.1.3.RELEASE.jar:2.1.3.RELEASE]
	at org.springframework.boot.actuate.health.AbstractHealthIndicator.health(AbstractHealthIndicator.java:84) ~[spring-boot-actuator-2.1.3.RELEASE.jar:2.1.3.RELEASE]
	at org.springframework.boot.actuate.health.CompositeHealthIndicator.health(CompositeHealthIndicator.java:98) [spring-boot-actuator-2.1.3.RELEASE.jar:2.1.3.RELEASE]
	at org.springframework.boot.actuate.health.HealthEndpoint.health(HealthEndpoint.java:50) [spring-boot-actuator-2.1.3.RELEASE.jar:2.1.3.RELEASE]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_181]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_181]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_181]
	at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:246) [spring-core-5.1.5.RELEASE.jar:5.1.5.RELEASE]
	at org.springframework.boot.actuate.endpoint.invoke.reflect.ReflectiveOperationInvoker.invoke(ReflectiveOperationInvoker.java:76) [spring-boot-actuator-2.1.3.RELEASE.jar:2.1.3.RELEASE]
	at org.springframework.boot.actuate.endpoint.annotation.AbstractDiscoveredOperation.invoke(AbstractDiscoveredOperation.java:61) [spring-boot-actuator-2.1.3.RELEASE.jar:2.1.3.RELEASE]
	at org.springframework.boot.actuate.endpoint.jmx.EndpointMBean.invoke(EndpointMBean.java:126) [spring-boot-actuator-2.1.3.RELEASE.jar:2.1.3.RELEASE]
	at org.springframework.boot.actuate.endpoint.jmx.EndpointMBean.invoke(EndpointMBean.java:99) [spring-boot-actuator-2.1.3.RELEASE.jar:2.1.3.RELEASE]
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_181]
	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_181]
	at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468) [na:1.8.0_181]
	at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) [na:1.8.0_181]
	at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309) [na:1.8.0_181]
	at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401) [na:1.8.0_181]
	at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829) [na:1.8.0_181]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_181]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_181]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_181]
	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357) [na:1.8.0_181]
	at sun.rmi.transport.Transport$1.run(Transport.java:200) [na:1.8.0_181]
	at sun.rmi.transport.Transport$1.run(Transport.java:197) [na:1.8.0_181]
	at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_181]
	at sun.rmi.transport.Transport.serviceCall(Transport.java:196) [na:1.8.0_181]
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573) [na:1.8.0_181]
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:834) [na:1.8.0_181]
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688) [na:1.8.0_181]
	at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_181]
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687) [na:1.8.0_181]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_181]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_181]
	at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_181]
Caused by: java.net.ConnectException: Connection refused: no further information
	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) ~[na:1.8.0_181]
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) ~[na:1.8.0_181]
	at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEvent(DefaultConnectingIOReactor.java:171) ~[httpcore-nio-4.4.11.jar:4.4.11]
	at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEvents(DefaultConnectingIOReactor.java:145) ~[httpcore-nio-4.4.11.jar:4.4.11]
	at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor.execute(AbstractMultiworkerIOReactor.java:351) ~[httpcore-nio-4.4.11.jar:4.4.11]
	at org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager.execute(PoolingNHttpClientConnectionManager.java:221) ~[httpasyncclient-4.1.4.jar:4.1.4]
	at org.apache.http.impl.nio.client.CloseableHttpAsyncClientBase$1.run(CloseableHttpAsyncClientBase.java:64) ~[httpasyncclient-4.1.4.jar:4.1.4]
	... 1 common frames omitted

在application.properties中添加下面的配置：

spring.elasticsearch.rest.uris=192.168.152.45:9200
management.endpoint.health.show-details=always

因为项目中添加了actuator依赖，会检查es集群。因此需要添加ip和端口

转载于:https://my.oschina.net/duanvincent/blog/3060768