轉(zhuǎn)自https://www.cnblogs.com/tomxin7/p/9434085.html

業(yè)務(wù)介紹

最近用Spring Boot開發(fā)了一個(gè)翻譯的小項(xiàng)目，但是服務(wù)器上還跑著其他項(xiàng)目，包括一個(gè)同樣用Spring Boot開發(fā)的微信后端服務(wù)，本次業(yè)務(wù)需要在阿里云的Linux使用同一個(gè)Tomcat容器部署多個(gè)項(xiàng)目。

部署環(huán)境：JDK8、Tomcat8、Centos7

遇到的問題

我多個(gè)項(xiàng)目一直都是部署在同一個(gè)Tomcat下，共用80端口，之前使用的MVC或者Servlet項(xiàng)目都沒有問題，但是今天把新的Spring Boot項(xiàng)目部署上去之后，Tomcat直接拋出異常，并且該項(xiàng)目無法訪問，其他項(xiàng)目正常。

org.springframework.jmx.export.UnableToRegisterMBeanException: Unable to register MBean [HikariDataSource (null)] with key 'dataSource'; nested exception is javax.management.InstanceAlreadyExistsException: com.zaxxer.hikari:name=dataSource,type=HikariDataSource

    at org.springframework.jmx.export.MBeanExporter.registerBeanNameOrInstance(MBeanExporter.java:625) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]

    at org.springframework.jmx.export.MBeanExporter.lambda$registerBeans$2(MBeanExporter.java:551) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]

    at java.util.HashMap.forEach(HashMap.java:1288) ~[na:1.8.0_131]

    at org.springframework.jmx.export.MBeanExporter.registerBeans(MBeanExporter.java:551) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]

    at org.springframework.jmx.export.MBeanExporter.afterSingletonsInstantiated(MBeanExporter.java:434) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]

    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:776) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]

    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]

    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]

    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:762) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]

    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:398) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]

    at org.springframework.boot.SpringApplication.run(SpringApplication.java:330) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]

    at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:157) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]

    at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:137) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]

    at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:91) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]

    at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:172) [spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE]

    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5292) [catalina.jar:8.0.36]

    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147) [catalina.jar:8.0.36]

    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725) [catalina.jar:8.0.36]

    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701) [catalina.jar:8.0.36]

    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717) [catalina.jar:8.0.36]

    at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1092) [catalina.jar:8.0.36]

    at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1834) [catalina.jar:8.0.36]

    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_131]

    at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_131]

    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_131]

    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_131]

    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_131]

Caused by: javax.management.InstanceAlreadyExistsException: com.zaxxer.hikari:name=dataSource,type=HikariDataSource

    at com.sun.jmx.mbeanserver.Repository.addMBean(Repository.java:437) ~[na:1.8.0_131]

    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerWithRepository(DefaultMBeanServerInterceptor.java:1898) ~[na:1.8.0_131]

    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:966) ~[na:1.8.0_131]

    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerObject(DefaultMBeanServerInterceptor.java:900) ~[na:1.8.0_131]

    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:324) ~[na:1.8.0_131]

    at com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:522) ~[na:1.8.0_131]

    at org.springframework.jmx.support.MBeanRegistrationSupport.doRegister(MBeanRegistrationSupport.java:137) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]

    at org.springframework.jmx.export.MBeanExporter.registerBeanInstance(MBeanExporter.java:671) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]

    at org.springframework.jmx.export.MBeanExporter.registerBeanNameOrInstance(MBeanExporter.java:615) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]

    ... 27 common frames omitted

2018-08-06 23:07:37.857  INFO 13141 --- [.cn-startStop-1] ConfigServletWebServerApplicationContext : Closing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@67ae851c: startup date [Mon Aug 06 23:07:32 CST 2018]; root of context hierarchy

2018-08-06 23:07:37.858  INFO 13141 --- [.cn-startStop-1] o.s.j.e.a.AnnotationMBeanExporter        : Unregistering JMX-exposed beans on shutdown

06-Aug-2018 23:07:37.860 SEVERE [api.fanyi.tomxin.cn-startStop-1] org.apache.catalina.core.ContainerBase.addChildInternal ContainerBase.addChild: start:

 org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[api.fanyi.tomxin.cn].StandardContext[]]

    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:153)

    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)

    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)

    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)

    at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1092)

    at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1834)

    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)

    at java.util.concurrent.FutureTask.run(FutureTask.java:266)

    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

    at java.lang.Thread.run(Thread.java:748)

Caused by: org.springframework.jmx.export.UnableToRegisterMBeanException: Unable to register MBean [HikariDataSource (null)] with key 'dataSource'; nested exception is javax.management.InstanceAlreadyExistsException: com.zaxxer.hikari:name=dataSource,type=HikariDataSource

    at org.springframework.jmx.export.MBeanExporter.registerBeanNameOrInstance(MBeanExporter.java:625)

    at org.springframework.jmx.export.MBeanExporter.lambda$registerBeans$2(MBeanExporter.java:551)

    at java.util.HashMap.forEach(HashMap.java:1288)

    at org.springframework.jmx.export.MBeanExporter.registerBeans(MBeanExporter.java:551)

    at org.springframework.jmx.export.MBeanExporter.afterSingletonsInstantiated(MBeanExporter.java:434)

    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:776)

    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869)

    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550)

    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140)

    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:762)

    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:398)

    at org.springframework.boot.SpringApplication.run(SpringApplication.java:330)

    at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:157)

    at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:137)

    at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:91)

    at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:172)

    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5292)

    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)

    ... 10 more

Caused by: javax.management.InstanceAlreadyExistsException: com.zaxxer.hikari:name=dataSource,type=HikariDataSource

    at com.sun.jmx.mbeanserver.Repository.addMBean(Repository.java:437)

    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerWithRepository(DefaultMBeanServerInterceptor.java:1898)

    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:966)

    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerObject(DefaultMBeanServerInterceptor.java:900)

    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:324)

    at com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:522)

    at org.springframework.jmx.support.MBeanRegistrationSupport.doRegister(MBeanRegistrationSupport.java:137)

    at org.springframework.jmx.export.MBeanExporter.registerBeanInstance(MBeanExporter.java:671)

    at org.springframework.jmx.export.MBeanExporter.registerBeanNameOrInstance(MBeanExporter.java:615)

    ... 27 more

06-Aug-2018 23:07:37.861 SEVERE [api.fanyi.tomxin.cn-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Error deploying web application directory /soft/tomcat/apache-tomcat-8.0.36/webapps/fanyi/api/ROOT

 java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[api.fanyi.tomxin.cn].StandardContext[]]

    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:729)

    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)

    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)

    at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1092)

    at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1834)

    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)

    at java.util.concurrent.FutureTask.run(FutureTask.java:266)

    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

    at java.lang.Thread.run(Thread.java:748)

解決過程

這里截取部分截圖和報(bào)錯(cuò)信息，在網(wǎng)上查了很久，很多解決方法是需要修改項(xiàng)目的web.xml，可是在Spring Boot項(xiàng)目中，并沒有web.xml文件，期間一直以為是自己項(xiàng)目代碼問題，但是線下部署都完全正常，后來懷疑是不是Tomcat同時(shí)部署的項(xiàng)目有上限，但是沒有查詢到相關(guān)例子，直到后來先暫停了項(xiàng)目中的另一個(gè)Spring Boot項(xiàng)目之后，發(fā)現(xiàn)新項(xiàng)目居然申請(qǐng)的跑起來了，嘗試的查找了一下多Spring Boot項(xiàng)目部署的問題，才發(fā)現(xiàn)了這個(gè)坑。

解決方案

Spring Boot的spring.jmx資源管理是默認(rèn)打開的，而兩個(gè)項(xiàng)目同時(shí)使用會(huì)沖突，網(wǎng)上有兩種解決辦法，我用的是第一種，第二種大家自測(cè)：

修改配置文件：application.properties(yml)

辦法1：在項(xiàng)目配置中加入：spring.jmx.enabled=false

辦法2：

在application中各自配置

spring.jmx.default-domain=project1

spring.jmx.default-domain=project2

以保證domain是兩個(gè)不一樣的

總結(jié)

以上是生活随笔為你收集整理的多个Spring Boot项目部署在一个Tomcat容器无法启动的全部內(nèi)容，希望文章能夠幫你解決所遇到的問題。

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