spring boot -- 多个spring boot 项目部署到同一个web 容器

报错：

信息: Deploying web application archive D:\apache-tomcat-7.0.76\webapps\FarmerHomeOA.war六月 05, 2017 5:47:11 下午 org.apache.catalina.startup.TldConfig execute信息: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.六月 05, 2017 5:47:15 下午 org.apache.catalina.core.ContainerBase addChildInternal严重: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/FarmerHomeOA]]at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162)at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:899)at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875)at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1092)at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1984)at java.util.concurrent.Executors$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:745)Caused by: org.springframework.jmx.export.UnableToRegisterMBeanException: Unable to register MBean [org.springframework.cloud.context.environment.EnvironmentManager@2c8f03d8] with key 'environmentManager'; nested exception is javax.management.InstanceAlreadyExistsException: org.springframework.cloud.context.environment:name=environmentManager,type=EnvironmentManagerat org.springframework.jmx.export.MBeanExporter.registerBeanNameOrInstance(MBeanExporter.java:628)at org.springframework.jmx.export.MBeanExporter.registerBeans(MBeanExporter.java:550)at org.springframework.jmx.export.MBeanExporter.afterSingletonsInstantiated(MBeanExporter.java:432)at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:779)at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866)at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542)at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761)at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:371)at org.springframework.boot.SpringApplication.run(SpringApplication.java:315)at org.springframework.boot.web.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:151)at org.springframework.boot.web.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:131)at org.springframework.boot.web.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:86)at com.huike.boot.StartApplication.onStartup(StartApplication.java:27)at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:169)at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5623)at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)... 10 moreCaused by: javax.management.InstanceAlreadyExistsException: org.springframework.cloud.context.environment:name=environmentManager,type=EnvironmentManagerat 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:195)at org.springframework.jmx.export.MBeanExporter.registerBeanInstance(MBeanExporter.java:682)at org.springframework.jmx.export.MBeanExporter.registerBeanNameOrInstance(MBeanExporter.java:618)... 26 more六月 05, 2017 5:47:15 下午 org.apache.catalina.startup.HostConfig deployWAR严重: Error deploying web application archive D:\apache-tomcat-7.0.76\webapps\FarmerHomeOA.warjava.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/FarmerHomeOA]]at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:903)at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875)at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1092)at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1984)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:745)六月 05, 2017 5:47:15 下午 org.apache.catalina.startup.HostConfig deployWAR信息: Deployment of web application archive D:\apache-tomcat-7.0.76\webapps\FarmerHomeOA.war has finished in 5,245 ms六月 05, 2017 5:47:15 下午 org.apache.catalina.startup.HostConfig deployDirectory信息: Deploying web application directory D:\apache-tomcat-7.0.76\webapps\docs六月 05, 2017 5:47:15 下午 org.apache.catalina.startup.HostConfig deployDirectory信息: Deployment of web application directory D:\apache-tomcat-7.0.76\webapps\docs has finished in 128 ms六月 05, 2017 5:47:15 下午 org.apache.catalina.startup.HostConfig deployDirectory

当将多个spring boot项目部署到同一个tomcat里面时，启动报错如上。

解决办法：

在application.properties文件里面加上spring.jmx.default-domain=项目标识。