javax.servlet.UnavailableException , 问题在纠结中，请求解答！！

javax.servlet.UnavailableException
at org.apache.struts.action.ActionServlet.initModulePlugIns(ActionServlet.java:880)
at org.apache.struts.action.ActionServlet.init(ActionServlet.java:336)
at javax.servlet.GenericServlet.init(GenericServlet.java:70)
at com.caucho.server.dispatch.ServletConfigImpl.createServletImpl(ServletConfigImpl.java:830)
at com.caucho.server.dispatch.ServletConfigImpl.createServlet(ServletConfigImpl.java:732)
at com.caucho.server.dispatch.ServletManager.init(ServletManager.java:159)
at com.caucho.server.webapp.WebApp.start(WebApp.java:1872)
at com.caucho.server.deploy.DeployController.startImpl(DeployController.java:667)
at com.caucho.server.deploy.DeployController.restartImpl(DeployController.java:630)
at com.caucho.server.deploy.StartAutoRedeployAutoStrategy.request(StartAutoRedeployAutoStrategy.java:125)
at com.caucho.server.deploy.DeployController.request(DeployController.java:600)
at com.caucho.server.webapp.WebAppContainer.getWebApp(WebAppContainer.java:900)
at com.caucho.server.webapp.WebAppContainer.buildInvocation(WebAppContainer.java:711)
at com.caucho.server.host.Host.buildInvocation(Host.java:489)
at com.caucho.server.host.HostContainer.buildInvocation(HostContainer.java:314)
at com.caucho.server.cluster.Server.buildInvocation(Server.java:1009)
at com.caucho.server.dispatch.DispatchServer.buildInvocation(DispatchServer.java:209)
at com.caucho.server.hmux.HmuxRequest.handleRequest(HmuxRequest.java:427)
at com.caucho.server.port.TcpConnection.run(TcpConnection.java:678)
at com.caucho.util.ThreadPool$Item.runTasks(ThreadPool.java:721)
at com.caucho.util.ThreadPool$Item.run(ThreadPool.java:643)
at java.lang.Thread.run(Thread.java:722)

at javax.servlet.GenericServlet.init(GenericServlet.java:70)目测是这行出错了···看看init方法里面的东西 自己debug

你是不是用myeclipse 自带的tomcat启动的，如果是自己配置各tomcat试试看