两个springboot项目如何部署在同一个服务上,two spring boot applications deploy in same server

现在有两个spring boot的maven项目，需要部署到同一个外部的服务上（tomcat），他们都包含spring-boot-starter-actuator（健康检查）的依赖，但是出现下面的异常

I have 2 spring boot applications(maven projects), which contain "spring-boot-starter-actuator" dependency, for checking health of the each application. While deploying both the applications in tomcat server, I get below exception 

2016-05-02 22:30:44.627 ERROR 12734 --- [ost-startStop-3] o.s.b.a.e.jmx.EndpointMBeanExporter      : Could not register MBean for endpoint [dumpEndpoint]org.springframework.jmx.export.UnableToRegisterMBeanException: Unable to register MBean [org.springframework.boot.actuate.endpoint.jmx.DataEndpointMBean@67e7c413] with key 'dumpEndpoint'; nested exception is javax.management.InstanceAlreadyExistsException: org.springframework.boot:type=Endpoint,name=dumpEndpointat org.springframework.jmx.export.MBeanExporter.registerBeanNameOrInstance(MBeanExporter.java:625) ~[spring-context-4.2.3.RELEASE.jar:4.2.3.RELEASE]at org.springframework.boot.actuate.endpoint.jmx.EndpointMBeanExporter.registerEndpoint(EndpointMBeanExporter.java:182) [spring-boot-actuator-1.3.0.RELEASE.jar:1.3.0.RELEASE]at org.springframework.boot.actuate.endpoint.jmx.EndpointMBeanExporter.locateAndRegisterEndpoints(EndpointMBeanExporter.java:162) [spring-boot-actuator-1.3.0.RELEASE.jar:1.3.0.RELEASE]at org.springframework.boot.actuate.endpoint.jmx.EndpointMBeanExporter.doStart(EndpointMBeanExporter.java:153) [spring-boot-actuator-1.3.0.RELEASE.jar:1.3.0.RELEASE]at org.springframework.boot.actuate.endpoint.jmx.EndpointMBeanExporter.start(EndpointMBeanExporter.java:276) [spring-boot-actuator-1.3.0.RELEASE.jar:1.3.0.RELEASE]at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:173) [spring-context-4.2.3.RELEASE.jar:4.2.3.RELEASE]at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:51) [spring-context-4.2.3.RELEASE.jar:4.2.3.RELEASE]at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:346) [spring-context-4.2.3.RELEASE.jar:4.2.3.RELEASE]at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:149) [spring-context-4.2.3.RELEASE.jar:4.2.3.RELEASE]at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:112) [spring-context-4.2.3.RELEASE.jar:4.2.3.RELEASE]at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:851) [spring-context-4.2.3.RELEASE.jar:4.2.3.RELEASE]at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:140) [spring-boot-1.3.0.RELEASE.jar:1.3.0.RELEASE]at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:540) [spring-context-4.2.3.RELEASE.jar:4.2.3.RELEASE]at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) [spring-boot-1.3.0.RELEASE.jar:1.3.0.RELEASE]at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752) [spring-boot-1.3.0.RELEASE.jar:1.3.0.RELEASE]at org.springframework.boot.SpringApplication.doRun(SpringApplication.java:347) [spring-boot-1.3.0.RELEASE.jar:1.3.0.RELEASE]at org.springframework.boot.SpringApplication.run(SpringApplication.java:295) [spring-boot-1.3.0.RELEASE.jar:1.3.0.RELEASE]at org.springframework.boot.context.web.SpringBootServletInitializer.run(SpringBootServletInitializer.java:149) [spring-boot-1.3.0.RELEASE.jar:1.3.0.RELEASE]at org.springframework.boot.context.web.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:129) [spring-boot-1.3.0.RELEASE.jar:1.3.0.RELEASE]at org.springframework.boot.context.web.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:85) [spring-boot-1.3.0.RELEASE.jar:1.3.0.RELEASE]at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:175) [spring-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5155) [catalina.jar:8.0.21]at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [catalina.jar:8.0.21]at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725) [catalina.jar:8.0.21]at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701) [catalina.jar:8.0.21]at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717) [catalina.jar:8.0.21]at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:940) [catalina.jar:8.0.21]at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1738) [catalina.jar:8.0.21]at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0]at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0]at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0]at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0]at java.lang.Thread.run(Thread.java:744) [na:1.8.0]Caused by: javax.management.InstanceAlreadyExistsException: org.springframework.boot:type=Endpoint,name=dumpEndpointat com.sun.jmx.mbeanserver.Repository.addMBean(Repository.java:437) ~[na:1.8.0]at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerWithRepository(DefaultMBeanServerInterceptor.java:1898) ~[na:1.8.0]at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:966) ~[na:1.8.0]at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerObject(DefaultMBeanServerInterceptor.java:900) ~[na:1.8.0]at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:324) ~[na:1.8.0]at com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:522) ~[na:1.8.0]at org.springframework.jmx.support.MBeanRegistrationSupport.doRegister(MBeanRegistrationSupport.java:195) ~[spring-context-4.2.3.RELEASE.jar:4.2.3.RELEASE]at org.springframework.jmx.export.MBeanExporter.registerBeanInstance(MBeanExporter.java:678) ~[spring-context-4.2.3.RELEASE.jar:4.2.3.RELEASE]at org.springframework.jmx.export.MBeanExporter.registerBeanNameOrInstance(MBeanExporter.java:621) ~[spring-context-4.2.3.RELEASE.jar:4.2.3.RELEASE]... 32 common frames omitted

解决办法

需要为每个项目配置JMX的域，  修改application.properties中的属性spring.jmx.default-domain=applicationname

1down vote

You can use the following properties in application.properties to configure a JMX domain for each of your applications (e.g. use the application name as domain):

spring.jmx.default-domain=applicationname

This configures the domain for all JMX endpoints which are added by Spring.

endpoints.jmx.domain=applicationname

This configures the JMX domain only for the actuator endpoints.

This will then prevent clashes of JMX beans with same names in different applications, because the domain will be added to the JMX name.