关于ActiveMQ 使用Ajax，web.xml中添加配置后启动报错

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关于ActiveMQ 使用Ajax，web.xml中添加配置后启动报错5

javax.servlet.UnavailableException: org.apache.activemq.web.AjaxServlet
at org.mortbay.jetty.servlet.Holder.doStart(Holder.java:78)
at org.mortbay.jetty.servlet.ServletHolder.doStart(ServletHolder.java:229)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:574)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:128)
at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1219)
at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:421)
at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:496)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:156)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:119)
at org.mortbay.jetty.Server.doStart(Server.java:228)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.partsoft.loader.context.ContextServiceManager.start(ContextServiceManager.java:82)
at com.partsoft.loader.ContextLauncher.startServices(ContextLauncher.java:208)
at com.partsoft.loader.ContextLauncher.start(ContextLauncher.java:246)
at com.partsoft.loader.WrapperLauncher.start(WrapperLauncher.java:15)
at org.tanukisoftware.wrapper.WrapperManager$11.run(WrapperManager.java:4117)

请问下：这是什么引起的，我只是在web.xml中添加了
<servlet>
<servlet-name>amqAjaxServlet</servlet-name>
<servlet-class>org.apache.activemq.web.AjaxServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>amqAjaxServlet</servlet-name>
<url-pattern>/amq/*</url-pattern>
</servlet-mapping>
其他的都没动，有人能帮忙看看吗？？谢谢！

2014年12月29日 10:24