ActiveMQ的N多问题

1、将工程部署到Tomcat上，如果出现下述错误提示，则是忘记开启ActiveMQ的服务器了。

Connection refused: connect
<wbr>at org.apache.activemq.util.JMSExceptionSupport.create(JMSExceptionSupport.java:62)<br><wbr>at org.apache.activemq.ActiveMQConnection.syncSendPacket(ActiveMQConnection.java:1206)<br><wbr>at org.apache.activemq.ActiveMQConnection.ensureConnectionInfoSent<wbr>(ActiveMQConnection.java:1289)<br><wbr>at org.apache.activemq.ActiveMQConnection.setClientID(ActiveMQConnection.java:375)<br><wbr>at com.flvcd.servlet.JMSListener.init(JMSListener.java:20)<br><wbr>at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1172)<br><wbr>at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:992)<br><wbr>at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4058)<br><wbr>at org.apache.catalina.core.StandardContext.start(StandardContext.java:4371)<br><wbr>at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)<br><wbr>at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)<br><wbr>at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)<br><wbr>at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:926)<br><wbr>at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:889)<br><wbr>at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)<br><wbr>at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1149)<br><wbr>at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)<br><wbr>at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)<br><wbr>at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)<br><wbr>at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)<br><wbr>at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)<br><wbr>at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)<br><wbr>at org.apache.catalina.core.StandardService.start(StandardService.java:516)<br><wbr>at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)<br><wbr>at org.apache.catalina.startup.Catalina.start(Catalina.java:578)<br><wbr>at sun.reflect.NativeMethodAccessorImpl<wbr>.invoke0(Native Method)<br><wbr>at sun.reflect.NativeMethodAccessorImpl<wbr>.invoke(Unknown Source)<br><wbr>at sun.reflect.DelegatingMethodAccessor<wbr>Impl.invoke(Unknown Source)<br><wbr>at java.lang.reflect.Method.invoke(Unknown Source)<br><wbr>at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)<br><wbr>at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)</wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr>

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2、如果部署到Tomcat上出现了下述错误提示，则表示jar包未加全。还应该添加geronimo-jms_1.1_spec-1.1.1.jar包。

Error deploying web application directory jms-test
java.lang.NoClassDefFoundError: javax/jms/MessageListener
<wbr>at java.lang.ClassLoader.defineClass1(Native Method)<br><wbr>at java.lang.ClassLoader.defineClass(Unknown Source)<br><wbr>at java.security.SecureClassLoader.defineClass(Unknown Source)<br><wbr>at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1847)<br><wbr>at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:890)<br><wbr>at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1354)<br><wbr>at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)<br><wbr>at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1094)<br><wbr>at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:992)<br><wbr>at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4058)<br><wbr>at org.apache.catalina.core.StandardContext.start(StandardContext.java:4371)<br><wbr>at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)<br><wbr>at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)<br><wbr>at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)<br><wbr>at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:926)<br><wbr>at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:889)<br><wbr>at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)<br><wbr>at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1149)<br><wbr>at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)<br><wbr>at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)<br><wbr>at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)<br><wbr>at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)<br><wbr>at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)<br><wbr>at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)<br><wbr>at org.apache.catalina.core.StandardService.start(StandardService.java:516)<br><wbr>at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)<br><wbr>at org.apache.catalina.startup.Catalina.start(Catalina.java:578)<br><wbr>at sun.reflect.NativeMethodAccessorImpl<wbr>.invoke0(Native Method)<br><wbr>at sun.reflect.NativeMethodAccessorImpl<wbr>.invoke(Unknown Source)<br><wbr>at sun.reflect.DelegatingMethodAccessor<wbr>Impl.invoke(Unknown Source)<br><wbr>at java.lang.reflect.Method.invoke(Unknown Source)<br><wbr>at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)<br><wbr>at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)</wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr>

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3、如果出现下列错误提示，则表示少添加commons-logging-1.1.jar包。

No appenders could be found for logger (org.springframework.web.context.ContextLoader).

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奇怪的问题：按照配置要求，应该添加 <wbr></wbr>

activemq-core-5.1.0.jar

activemq-web-5.1.0.jar

geronimo-j2ee-management_1.0_spec-1.0.jar

geronimo-jms_1.1_spec-1.1.1.jar

geronimo-jta_1.0.1B_spec-1.0.1.jar

和commons-logging-1.1.jar（似乎不加也行。）

一共6个包，但经过测试，只添加了activemq-core-5.1.0.jar和geronimo-jms_1.1_spec-1.1.1.jar即可，

搞不清楚为什么。