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我试图在同一个应用程序中运行两个嵌入式 Tomcat 服务器，但我不断收到“Tomcat”名称已注册为 MBean 的异常。在两个不同的进程中运行两个 Tomcat 服务器就可以了。只是当我尝试在一个进程中运行两个 Tomcat 服务器时。

我有不想在同一个 Tomcat 服务器实例中创建两个连接器的原因，简而言之，我正在运行需要启动三个服务器的单元测试，并且我想运行三个单独的服务器，因为这就是它的运行方式现实世界不是在具有多个连接器的单个服务器中。

我想知道是否有任何方法可以更改 Tomcat 服务器用于 MBean 注册的名称，甚至完全关闭整个 MBean 注册？

作为记录，下面是我在同一进程中启动两个 Tomcat 实例时得到的堆栈跟踪：

SEVERE: Error registering Tomcat:j2eeType=Servlet,name=gor,WebModule=//localhost/gorserver,J2EEApplication=none,J2EEServer=none
javax.management.InstanceAlreadyExistsException: Tomcat:j2eeType=Servlet,name=gor,WebModule=//localhost/gorserver,J2EEApplication=none,J2EEServer=none
    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.apache.tomcat.util.modeler.Registry.registerComponent(Registry.java:742)
    at org.apache.catalina.util.LifecycleMBeanBase.register(LifecycleMBeanBase.java:158)
    at org.apache.catalina.util.LifecycleMBeanBase.initInternal(LifecycleMBeanBase.java:61)
    at org.apache.catalina.core.ContainerBase.initInternal(ContainerBase.java:1080)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:136)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5508)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1571)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1561)
    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)

Aug 30, 2016 2:20:57 AM org.apache.catalina.util.LifecycleMBeanBase register
WARNING: Failed to register object [StandardEngine[Tomcat].StandardHost[localhost].StandardContext[/gorserver].StandardWrapper[gor]] with name [Tomcat:j2eeType=Servlet,name=gor,WebModule=//localhost/gorserver,J2EEApplication=none,J2EEServer=none] during component initialisation
javax.management.InstanceAlreadyExistsException: Tomcat:j2eeType=Servlet,name=gor,WebModule=//localhost/gorserver,J2EEApplication=none,J2EEServer=none
    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.apache.tomcat.util.modeler.Registry.registerComponent(Registry.java:742)
    at org.apache.catalina.util.LifecycleMBeanBase.register(LifecycleMBeanBase.java:158)
    at org.apache.catalina.util.LifecycleMBeanBase.initInternal(LifecycleMBeanBase.java:61)
    at org.apache.catalina.core.ContainerBase.initInternal(ContainerBase.java:1080)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:136)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5508)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1571)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1561)
    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)
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1 回答 1

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最终发现可以通过为添加到 Tomcat 服务器的每个上下文指定一个唯一名称来解决此问题（例如，添加要添加到的服务器的端口号）：

context.setName("MyServerContext_" + httpPort);

这导致 MBean 具有不同的名称。

于 2016-09-06T11:37:20.170 回答