ActiveMQ Classic Web 控制台无法启动：无法打开 ServletContext 资源

Question

我注意到最近将 ActiveMQ 从 5.16.1 升级到 5.16.7 时出现一个问题，ActiveMQ Web 控制台无法启动，并出现以下异常。其他功能工作正常，但无法启动 Web 控制台。我这边的这次升级没有进行任何配置更改。

HTTP ERROR 503 Service Unavailable
URI: /***/web-console/
STATUS: 503
MESSAGE: Service Unavailable
SERVLET: -

根据下面的异常，我检查了文件路径和conf，其中上下文指向相应的路径并且文件可用。

jetty.xml

：

<bean id="secHandlerCollection" class="org.eclipse.jetty.server.handler.HandlerCollection">
        <property name="handlers">
            <list>
                <bean class="org.eclipse.jetty.webapp.WebAppContext">
                    <property name="contextPath" value="**/messagebus/web-console  "/>
                    <property name="resourceBase" value="${activemq.home}/webapps/admin"/>
                    <property name="logUrlOnStart" value="true"/>
                </bean>
            </list>
        </property>
    </bean>

文件

***/activemq/webapps/admin/WEB-INF/webconsole-default.xml
***/activemq/webapps/admin/WEB-INF/webconsole-embedded.xml

异常

2024-04-24 15:41:17,563 | WARN  | Failed startup of context o.e.j.w.WebAppContext@319c3a25{ActiveMQ Console,/server/web-console,file:///path/activemq/webapps/admin/,UNAVAILABLE} | org.eclipse.jetty.webapp.WebAppContext | main
org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from ServletContext resource [/WEB-INF/webconsole-embedded.xml]; nested exception is java.io.FileNotFoundException: Could not open ServletContext resource [/WEB-INF/webconsole-embedded.xml]
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:342)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:310)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:196)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:232)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:203)
at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:125)
at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:94)
at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:130)
at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:679)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:562)
at org.apache.activemq.web.WebConsoleStarter.createWebapplicationContext(WebConsoleStarter.java:71)
at org.apache.activemq.web.WebConsoleStarter.contextInitialized(WebConsoleStarter.java:44)
at org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:1073)
at org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:572)
at org.eclipse.jetty.server.handler.ContextHandler.contextInitialized(ContextHandler.java:1002)
at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:765)
at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:379)
at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1449)
at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1414)
at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:916)
at org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:288)
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:524)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
at org.eclipse.jetty.security.SecurityHandler.doStart(SecurityHandler.java:411)
at org.eclipse.jetty.security.ConstraintSecurityHandler.doStart(ConstraintSecurityHandler.java:417)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
at org.eclipse.jetty.server.Server.start(Server.java:423)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
at org.eclipse.jetty.server.Server.doStart(Server.java:387)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.springframework.util.MethodInvoker.invoke(MethodInvoker.java:285)
at org.springframework.beans.factory.config.MethodInvokingBean.invokeWithTargetException(MethodInvokingBean.java:123)
at org.springframework.beans.factory.config.MethodInvokingFactoryBean.afterPropertiesSet(MethodInvokingFactoryBean.java:108)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1863)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1800)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:620)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:336)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:334)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:209)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:936)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:591)
at org.apache.xbean.spring.context.ResourceXmlApplicationContext.<init>(ResourceXmlApplicationContext.java:64)
at org.apache.xbean.spring.context.ResourceXmlApplicationContext.<init>(ResourceXmlApplicationContext.java:52)
at org.apache.activemq.xbean.XBeanBrokerFactory$1.<init>(XBeanBrokerFactory.java:104)
at org.apache.activemq.xbean.XBeanBrokerFactory.createApplicationContext(XBeanBrokerFactory.java:104)
at org.apache.activemq.xbean.XBeanBrokerFactory.createBroker(XBeanBrokerFactory.java:67)
at org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.java:71)
at org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.java:54)
at org.apache.activemq.console.command.StartCommand.runTask(StartCommand.java:87)
at org.apache.activemq.console.command.AbstractCommand.execute(AbstractCommand.java:63)
at org.apache.activemq.console.command.ShellCommand.runTask(ShellCommand.java:154)
at org.apache.activemq.console.command.AbstractCommand.execute(AbstractCommand.java:63)
at org.apache.activemq.console.command.ShellCommand.main(ShellCommand.java:104)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.apache.activemq.console.Main.runTaskClass(Main.java:262)
at org.apache.activemq.console.Main.main(Main.java:115)
Caused by: java.io.FileNotFoundException: Could not open ServletContext resource [/WEB-INF/webconsole-embedded.xml]
at org.springframework.web.context.support.ServletContextResource.getInputStream(ServletContextResource.java:141)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:333)
... 78 more

我们需要添加任何配置更改才能启动 Web 控制台吗？

Answer 1

我也有同样的问题。问题是我在运行脚本 activemq 中将 ACTIVEMQ_HOME 环境变量设置为硬编码值。我的路径也有一个链接。我认为主要问题是您需要让脚本 activemq 使用 getActiveMQhome 来找出路径。当我删除导出 ACTIVEMQ_HOME 变量的行时，它获得了没有链接的正确路径。 ActiveMQ 运行良好。 另外，不要修改 jetty.xml 以使用硬编码路径。如果您看到使用 ${activemq.home} 的区域，请勿将其替换为路径。

Answer 2

我注意到已经有一张为此开放的票证。

问题：

它与ActiveMQ Classic没有直接关系。这是由于 Jetty 的升级造成了一些限制符号引用使用的修复。 ( /opt/app-1 -> /opt/app)

修复：

引用实际引用 (/opt/app-1) 而不是符号引用 (/opt/app) 也可以解决该问题。 相反，有一种方法可以解决这个问题

jetty.xml

，例如：

...
<bean class="org.eclipse.jetty.webapp.WebAppContext">
   <property name="contextPath" value="/admin" />
   <property name="resourceBase" value="${activemq.home}/webapps/admin" />
   <property name="logUrlOnStart" value="true" />

   <!-- add here. start -->
   <property name="aliasChecks">
      <list>
         <bean class="org.eclipse.jetty.server.handler.ContextHandler$ApproveAliases"/>
      </list>
   </property>
   <!-- end -->
</bean>